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NCERT Solutions For Class 10th Maths Chapter 1 : All Q&A

Three friends Salman, Hrithik and John were very good friends. They weed to go for morning walk together once, on a morning walk, they step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively.

What is solutiions minimum distance each should walk so that each can cover the same distance in complete steps? A mason has to fit a bathroom with square marble tiles of largest possible size. The size of the bathroom is 6 ft. What would be the size in inches of the tile required that has to be cut and how many such tiles are required?

Aakriti decided to distribute milk in an orphanage on her birthday. Class 10 maths ch 1 ex 1.4 solutions js supplier brought two milk containers which contain Fh and L of milk. The milk is to be transferred to another containers so 7 L and 11.4 L of milk is left in both the containers respectively.

What will be the maximum capacity of the drum? The given class 10 maths ch 1 ex 1.4 solutions js is non-terminating and repeating decimal number. Therefore, it is a rational number. Then the number has a decimal expansion which terminates. There solutiojs totally 3 questions containing 6 marks. In the third questions for 4 marks choice was provided. There were totally 3 questions containing 5 marks.

There were no choices given in questions of Chapter 1. If you have any feedback about the website or Tiwari Academy App, please inform us. We respect your all suggestions and feedback. Class 10 Maths Exercise 1.

Prove solutins the product of three consecutive positive integers is divisible by 6. There are boys and girls in class X of a school. The principal of the school wishes to have class 10 maths ch 1 ex 1.4 solutions js number of sections, each section has to accommodate equal number of boys and girls.

What will be the maximum number of such sections? How can you check whether the given clazs is terminating or non-terminating?

Check this:

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This is used in the file sharing systems like a Torrent. This binding is provided by the MsmqIntegrationBinding class. It offers support to communicate with existing systems that communicate via MSMQ. In WCF, all services expose contracts.

The contract is a platform-neutral and standard way of describing what the service does. WCF defines four types of contracts. Define which data types are passed to and from the service. WCF defines implicit contracts for built-in types such as int and string , but you can easily define explicit opt-in data contracts for custom types. Define which errors are raised by the service, and how the service handles and propagates errors to its clients.

Allow the service to interact directly with messages. Message contracts can be typed or untyped, and are useful in interoperability cases and when there is an existing message format you have to comply with.

Generally there are 2 types of processors, bit and bit. This actually tells us how much memory a processor can have access from a CPU register.

In short, any amount of memory greater than 4 GB can be easily handled by it. You cannot change your OS from 32 bit to 64 bit because they're built on different architecture.

You need to re-install a 64 bit version of the OS. To download 64 bit version look for x A servlet is simply a class which responds to a particular type of network request - most commonly an HTTP request.

Basically servlets are usually used to implement web applications - but there are also various frameworks which operate on top of servlets e. Servlets run in a servlet container which handles the networking side e. One of the best-known open source servlet containers is Tomcat. It is just a collection of routines functional programming or class definitions object oriented programming.

The reason behind is simply code reuse , i. The classes or routines normally define specific operations in a domain specific area. For example, there are some libraries of mathematics which can let developer just call the function without redo the implementation of how an algorithm works.

In framework, all the control flow is already there, and there are a bunch of predefined white spots that we should fill out with our code. A framework is normally more complex. It defines a skeleton where the application defines its own features to fill out the skeleton. In this way, your code will be called by the framework when appropriately. The benefit is that developers do not need to worry about if a design is good or not, but just about implementing domain specific functions.

ASCII defines characters, which map to the numbers 0� Unicode defines less than characters, which, similarly, map to numbers 0� though not all numbers are currently assigned, and some are reserved. For example, the number 65 means "Latin capital 'A'".

Because Unicode characters don't generally fit into one 8-bit byte, there are numerous ways of storing Unicode characters in byte sequences, such as UTF and UTF While logged in as root, we can use ps aux less command. As the list of processes can be quite long and occupy more than a single screen, the output of ps aux can be piped transferred to the less command, which lets it be viewed one screen full at a time.

The output can be advanced one screen forward by pressing the SPACE bar and one screen backward by pressing the b key. We can use the ' chmod' command which stands for 'change mode'. Number Permission Type Symbol. It is a rapid, practical, and efficient way to install packages on your system. Dependencies are managed automatically, configuration files are maintained, and upgrades and downgrades are handled carefully to ensure system stability.

The minimum no of races to be held is 7. Make group of 5 horses and run 5 races. Suppose five groups are a,b,c,d,e and next alphabet is its individual rank in tis group of 5 horses.

Now make a race of a1,b1,c1,d1,e1. The major difference between these two, is that the result of BFS is always a tree, whereas DFS can be a forest collection of trees.

Meaning, that if BFS is run from a node s, then it will construct the tree only of those nodes reachable from s, but if there are other nodes in the graph, will not touch them. DFS however will continue its search through the entire graph, and construct the forest of all of these connected components.

This is, as they explain, the desired result of each algorithm in most use-cases. An n -ary tree is a rooted tree in which each node has no more than n children. It is also sometimes known as a n -way tree , an K -ary tree , or an m -ary tree. A binary tree is a tree where each node can have zero, one or, at most, two child nodes. Each node is identified by a key or id. A binary search tree is a binary tree which nodes are sorted following the follow rules: all the nodes on the left sub tree of a node have a key with less value than the node, while all the nodes on the right sub tree have higher value and both the left and right subtrees must also be binary search trees.

So, a binary tree can be a binary search tree, if it follows all the properties of a binary search tree. An electricity meter , electric meter , electrical meter , or energy meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device. A machine-readable code in the form of numbers and a pattern of parallel lines of varying widths, printed on a commodity and used especially for stock control.

A web container also known as a servlet container ; and compare "webtainer" is the component of a web server that interacts with Java servlets.

A web container is responsible for managing the lifecycle of servlets , mapping a URL to a particular servlet and ensuring that the URL requester has the correct access-rights. The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays.

The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects. Survivor Space : The pool containing objects that have survived the garbage collection of the Eden space. The first router receives the packet, decrements the TTL value and drops the packet because it then has TTL value zero. The timestamp values returned for each router along the path are the delay latency values, typically measured in milliseconds for each packet.

The sender expects a reply within a specified number of seconds. If a packet is not acknowledged within the expected interval, an asterisk is displayed. The Internet Protocol does not require packets to take the same route towards a particular destination, thus hosts listed might be hosts that other packets have traversed.

If the host at hop N does not reply, the hop is skipped in the output. On Unix-line operating systems, traceroute employs User Datagram Protocol UDP datagrams by default, with destination port numbers ranging from to If a network has a firewall and operates both Windows and Unix-like systems, more than one protocol must be enabled inbound through the firewall for traceroute to work and receive replies.

It uses a link state routing LSR algorithm and falls into the group of interior gateway protocols IGPs , operating within a single autonomous system AS. Enhanced Interior Gateway Routing Protocol EIGRP is an advanced distance-vector routing protocol that is used on a computer network for automating routing decisions and configuration.

The protocol was designed by Cisco Systems as a proprietary protocol, available only on Cisco routers. DB2 has a mechanism called a cursor. Using a cursor is like keeping your finger on a particular line of text on a printed page. In DB2, an application program uses a cursor to point to one or more rows in a set of rows that are retrieved from a table. You can also use a cursor to retrieve rows from a result set that is returned by a stored procedure.

Your application program can use a cursor to retrieve rows from a table. You can retrieve and process a set of rows that satisfy the search condition of an SQL statement. When you use a program to select the rows, the program processes one or more rows at a time. This set of rows is referred to as the result table. However, performing all changes this way may not be practical, and so it must be refined under one domain controller that maneuvers such change requests intelligently.

Operations Master role is assigned to one or more domain controllers and they are classified as Forest-wide and Domain-wide based on the extent of the role. Drupal had huge limitations with incomplete Entity API, lack of separation between content and configuration which turned into deployment challenges for developers, separation lacked between logic and presentation in the theme layer.

Drupal 7 was held on to procedural programming instead of object-oriented programming. Where Drupal 8 is build with Symfony framework and Drupal concepts such as Fields, Views, Entities, Nodes are now implemented using object-oriented programming design patterns.

The first step in creating a module is to choose a "short name" Solutions For Class 10 Maths Ch 2 Uni for it. This short name will be used in all file and function names in your module, so it must start with a letter, and it must contain only lower-case letters and underscores. Important note: Be sure you follow these guidelines and do not use upper case letters in your module's short name, since it is used for both the module's file name and as a function prefix.

When you implement Drupal "hooks" see later portions of tutorial , Drupal will only recognize your hook implementation functions if they have the same function name prefix as the name of the module file. It's also important to make sure your module does not have the same short name as any theme you will be using on the site.

In Drupal 6. By placing all site-specific files in the sites directory, this allows you to more easily update the core files and modules without erasing your customizations. Java is a programming language and computing platform first released by Sun Microsystems in There are lots of applications and websites that will not work unless you have Java installed, and more are created every day.

Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet. Simple Solution : The solution is to run two nested loops.

Start traversing from left side. For every character, check if it repeats or not. If the character repeats, increment count of repeating characters.

When the count becomes k, return the character. Time Complexity of this solution is O n2. We can Use Sorting to solve the problem in O n Log n time. Following are detailed steps. For every element, count its occurrences in temp[] using binary search.

As soon as we find a characterthat occurs more than once, we return the character. No, Java is not pure object oriented. Object oriented programming language should only have objects whereas java have int,char,float which are not objects. Values of primitive types are either stored directly in fields for objects or on the stacks for methods rather than on the heap, as is commonly true for objects. This was a conscious decision by Java's designers for performance reasons.

Because of this, Java was not considered to be a pure object-oriented programming language. JVM is an interpreter which is installed in each client machine that is updated with latest security updates by internet.

When this byte codes are executed , the JVM can take care of the security. So, java is said to be more secure than other programming languages. Inside the container, we will have a title and three items which will include:. The first elements are the delete and favorite buttons. Then we need to add a quantity element, where we have two buttons for adding or removing product quantity.

Android service is a component that is used to perform operations on the background such as playing music, handle network transactions, interacting content providers etc. It doesn't has any UI user interface.

Moreover, service can be bounded by a component to perform interactivity and inter process communication IPC. A broadcast receiver receiver is an Android component which allows you to register for system or application events.

All registered receivers for an event are notified by the Android runtime once this event happens. Alternatively to this static registration, you can also register a receiver dynamically via the Context. The implementing class for a receiver extends the BroadcastReceiver class. If the event for which the broadcast receiver has registered happens, the onReceive method of the receiver is called by the Android system.

We can solve this problem by observing some cases, As N needs to be LCM of all numbers, all of them will be divisors of N but because a number can be taken only once in sum, all taken numbers should be distinct. The idea is to take every divisor of N once in sum to maximize the result.

How can we say that the sum we got is maximal sum? The reason is, we have taken all the divisors of N into our sum, now if we take one more number into sum which is not divisor of N, then sum will increase but LCM property will not be hold by all those integers. So it is not possible to add even one more number into our sum, except all divisor of N so our problem boils down to this, given N find sum of all divisors, which can be solved in O sqrt N time.

So total time complexity of solution will O sqrt N with O 1 extra space. He plucked 7 flowers from the garden and 8 he kept in every temple. LOGIC: let the no. If it is convex, a trivial way to check it is that the point is laying on the same side of all the segments if traversed in the same order.

You can check that easily with the cross product as it is proportional to the cosine of the angle formed between the segment and the point, those with positive sign would lay on the right side and those with negative sign on the left side. Method 1 Use Sorting 1 Sort both strings 2 Compare the sorted strings.

Method 2 Count characters This method assumes that the set of possible characters in both strings is small. In the following implementation, it is assumed that the characters are stored using 8 bit and there can be possible characters. Initialize all values in count arrays as 0. If both count arrays are same, then return true.

A type expresses that a value has certain properties. A class or interface groups those properties so you can handle them in an organized, named way. You relate a type you're defining to a class using inheritance, but this is not always and in fact usually is not how you want to relate two types. An interface therefore provides a way other than subtyping to relate types.

It lets you add an orthogonal concern to the type you're defining, such as Comparable or Closeable. These would be almost unusable if they were classes one reason is because Java would only allow you to extend that class; and subtyping forces hierarchy, access to unrelated members, and other likely unwanted things.

Historically an interface is somewhat less useful than a trait e. In this example, we are choosing to make all HTML paragraph tags appear bolded:. These functions are not defined by the programmer. These functions are already defined inside the language library. Now say printf is a function. When you use it, its code must be written somewhere so that you directly use it. Number has 51 digits, so the last digit's got to be 1.

Flowchart is the diagrammatic representation of an algorithm with the help of symbols carrying certain meaning. Using flowchart, we can easily understand a program. Flowchart is not language specific. We can use the same flowchart to code a program using different programming languages. Though designing a flowchart helps the coding easier, the designing of flowchart is not a simple task and is time consuming.

Algorithm is a tool a software developer uses when creating new programs. An algorithm is a step-by-step recipe for processing data; it could be a process an online store uses to calculate discounts, for example.

One way to implement both of these techniques is to print the provided information while the program is running.

A compiler is a computer program or a set of programs that transforms source code written in a programming language the source language into another computer language the target language , with the latter often having a binary form known as object code. It is a mechanism allowing you to ensure the authenticity of an assembly.

It allows you to ensure that an assembly hasn't been tampered. It is also necessary if you want to put them into the GAC. To put some form of hierarchical efficiency into IP addressing.

That said, the details don't matter because the lack of IPv4 address space required the abandonment of classes to better utilize the limited address space. Before , it was easy to determine the subnet size simply by looking at the first few bits of an IP address which identified it's class. A surrogate key is any column or set of columns that can be declared as the primary key instead of a "real" or natural key. Sometimes there can be several natural keys that could be declared as the primary key , and these are all called candidate keys.

So a surrogate is a candidate key. In cryptography, encryption is the process of encoding a message or information in such a way that only authorized parties can access it. Encryption does not of itself prevent interference, but denies the intelligible content to a would-be interceptor. In an encryption scheme, the intended information or message, referred to a plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted.

For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is in principle possible to decrypt the message without possessing the key, but, for a well-designed encryption scheme, considerable computational resources and skills are required.

An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Selenium is a portable software-testing framework for web application. It is open source software, released under the Apache 2. This approach allows you to abstract any connection details, wrap anything else you want to expose and require db throughout your application while maintaining one connection to your db thanks to how node require works :.

The function s can do almost anything, which is why I think it is rather difficult to define what a directive is. Each directive has a name like ng-repeat, tabs, make-up-your-own and each directive determines where it can be used: element, attribute, class, in a comment. A directive normally only has a post link function. A complicated directive could have a compile function, a pre-link function, and a post-link function.

The difference between factory and service is just like the difference between a function and an object. Factory can return anything which can be a class constructor function , instance of class , string , number or boolean. If you return a constructor function, you can instantiate in your controller.

Service does not need to return anything. But you have to assign everything in this variable. Because service will create instance by default and use that as a base object.

Factory is mostly preferable in all cases. It can be used when you have constructor function which needs to be instantiated in different controllers. Service is a kind of Singleton Object. The Object return from Service will be same for all controller.

It can be used when you want to have single object for entire application. Eg: Authenticated user details. They act as a glue between controller and view. These are singleton objects which are instantiated only once in app. These can be used to create custom HTML tags that serve as new, custom widgets. AngularJS has built-in directives ngBind, ngModel These can be a single file like index. The application can then be restored from the URL to the same state.

The Open Group Architecture Framework TOGAF is a framework for enterprise architecture that provides an approach for designing, planning, implementing, and governing an enterprise information technology architecture.

One way is to use a port number other than default port or a port determined at system startup for named instances. You might want to disable the SQL Server Browser service as well or at least hide the SQL Server instance so that the Browser service doesn't reveal it to any applications that inquire which ports the server is listening to. One reason to not disable it would be if you have multiple instances of SQL Server on the host because it "maps" connections to instances.

You can hide an instance in the properties page for the instance's protocol, although this just means that SQL Server won't respond when queried by client applications looking for a list of SQL Server machines.

Making these kinds of changes is security by obscurity, which is arguably not very secure and shouldn't be your only security measure. But they do place speed bumps in the path of attackers trying to find an instance of SQL Server to attack.

Intended for use with small networks with fewer than 25 clients, APIPA enables Plug and Play networking by assigning unique IP addresses to computers on private local area networks. A recurrent neural network RNN is a class of artificial neural network where connections between units form a directed cycle. This creates an internal state of the network which allows it to exhibit dynamic temporal behavior.

Unlike feedforward neural network, RNNs can use their internal memory to process arbitrary sequences of inputs. This makes them applicable to tasks such as unsegmented connected handwriting recognition or speech recognition. Direct current is a bit easier to understand than alternating current.

Rather than oscillating back and forth, DC provides a constant voltage or current. Generating DC DC can be generated in a number of ways:. In multitasking computer operating systems, a daemon is a computer program hat runs as a background process, rather than being under the direct control of an interactive user.

Traditionally, the process names of a daemon end with the letter d , for clarification that the process is, in fact, a daemon, and for differentiation between a daemon and a normal computer program.

For example, syslogd is the daemon that implements the system logging facility, and sshd is a daemon that serves incoming SSH connections. In a Unix environment, the parent process of a daemon is often, but not always, the init process. A daemon is usually either created by a process forking a child process and then immediately exiting, thus causing init to adopt the child process, or by the init process directly launching the daemon.

In addition, a daemon launched by forking and exiting typically must perform other operations, such as dissociating the process from any controlling terminal tty. Such procedures are often implemented in various convenience routines such as daemon 3 in Unix. Systems often start daemons at boot time which will respond to network requests, hardware activity, or other programs by performing some task.

Daemons such as cron may also perform defined tasks at scheduled times. Network File System NFS is a distributed file system protocol originally developed by Sun Microsystem in , allowing a user on a client computer o access files over a computer network much like local storage is accessed. Is it your installation of the operating system that is causing the lags and lockups, or is it a hardware issue like bad Ram or a blown cap� or bad sectors on a hard drive� or a wonky power supply?

Run some tests. Another way is to remove your hard drive, install a blank one you are only going to use it for this , and install Windows on it. A few HDD tests, read some S.

You could open the case, make sure that all the caps are good, all the connections are tight, that Ram and cards are all seated properly� that the heatsink is on the processor properly, drive data cables are secure and in good order.

Last resort kind of thing. Took it apart� and it ran fine. That was fun.. Start simple. For me when it is on the bench, I boot to Parted Magic. If the drive is to blame, the sooner I can get the important information off the drive, the better.

It lights an amber LED when there is an issue, and that makes it easy to spot from across the bench. Assuming the hardware all checks, I move on to the OS.

This is where diagnostics start to lose ground to time and objective. I know that this seems logical� but sometimes what would fix the problem would take far longer to uncover and implement than just nuking the system with a factory recovery. Case in point, an older woman with an older HP that had been upgraded to Win10 came in tonight, with the system behaving unpredictably. The hardware checked out, and a scan of the system found some infected files and uncommon alterations.

Her lags and locks were, at least potentially, being caused by a dirty system. I could have cleaned it. She only used it for surfing the web. She had nothing she wanted to keep I asked , and she was OK with my performing a factory recovery. I obliterated it, and rebuilt Windows on top of the smoking remains. Now, there is a diagnostic reason for this as well.

A clean install of Windows can fix a great many issues, large and small. You get to see if that would fix the issue, without touching the issue. Then, you can work backwards. However� the average user? Back up the data, and nuke it. Many times it happens due to server heavy load, deadlocks or some process may hanged. I will first monitor the database threads if anything sleeping long time or taking too much of time - I will kill the process from database server.

Secondly, will check the page by applying start time and end time between methods to analyse which part is taking too long time to responds back to client request - I will find out and optimize this. Look up maximum threads for server both web server and data base server - I will try to increase the threads connections.

Web Sockets is a next-generation bidirectional communication technology for web applications which operates over a single socket and is exposed via a JavaScript interface in HTML 5 compliant browsers. Once you get a Web Socket connection with the web server, you can send data from browser to server by calling a send method, and receive data from server to browser by an onmessage event handler.

Here first argument, url, specifies the URL to which to connect. The second attribute, protocol is optional, and if present, specifies a sub-protocol that the server must support for the connection to be successful. Suppose you are in college or employee of any company, then the IP address which show is of internet connection of that company or school router. Latches are level trigerred.

The first latch is driven by positive phase while the second latch is driven by negative phase. Yes, definitly we can declare a class inside an interface. GfG ; ia. WiMAX supports mobile, nomadic and fixed wireless applications.

A mobile user, in this context, is someone in transit, such as a commuter on a train. A nomadic user is one that connects on a portable device but does so only while stationary -- for example, connecting to an office network from a hotel room and then again from a coffee shop. While C has a set of capabilities similar to Java, it has added several new and interesting features.

Delegation is the ability to treat a method as a first-class object. A C delegate is used where Java developers would use an interface with a single method. We can do this using external sorting.

What we have to do for this is, sort small chunks of data first, write it back to the disk and then iterate over those to sort all.

Priority Queue is similar to queue where we insert an element from the back and remove an element from front, but with a one difference that the logical order of elements in the priority queue depends on the priority of the elements.

The element with highest priority will be moved to the front of the queue and one with lowest priority will move to the back of the queue. Thus it is possible that when you enqueue an element at the back in the queue, it can move to front because of its highest priority. First as the priority queue is empty, so 4 will be inserted initially.

Now when 8 will be inserted it will moved to front as 8 is greater than 4. While inserting 1, as it is the current minimum element in the priority queue, it will remain in the back of priority queue. Now 7 will be inserted between 8 and 4 as 7 is smaller than 8. Now 3 will be inserted before 1 as it is the 2nd minimum element in the priority queue.

All the steps are represented in the diagram below:. Naive Approach: Suppose we have N elements and we have to insert these elements in the priority queue. We can use list and can insert elements in O N time and can sort them to maintain a priority queue in O N logN time.

Efficient Approach: We can use heaps to implement the priority queue. It will take O log N time to insert and delete each element in the priority queue.

Based on heap structure, priority queue also has two types max- priority queue and min - priority queue. Initially there are 5 elements in priority queue. Operation: Insert Value Arr, 6 In the diagram below, inserting another element having value 6 is violating the property of max-priority queue, so it is swapped with its parent having value 4, thus maintaining the max priority queue.

Operation: Extract Maximum: In the diagram below, after removing 8 and placing 4 at node 1, violates the property of max-priority queue.

As discussed above, like heaps we can use priority queues in scheduling of jobs. When there are N jobs in queue, each having its own priority. Testing Big Data application is more a verification of its data processing rather than testing the individual features of the software product.

When it comes to Big data testing, performance and functional testing are the key. In Big data testing QA engineers verify the successful processing of terabytes of data using commodity cluster and other supportive components. It demands a high level of testing skills as the processing is very fast.

Processing may be of three types. Along with this, data quality is also an important factor in big data testing. Before testing the application, it is necessary to check the quality of data and should be considered as a part of database testing.

It involves checking various characteristics like conformity, accuracy, duplication, consistency, validity,data completeness, etc. The first step of big data testing, also referred as Pre-Hadoop stage involves process validation. The second step is a validation of "Map Reduce". In this stage, the tester verifies the business logic validation on every node and then validating them after running against multiple nodes, ensuring that the.

The final or third stage of Big Data testing is the output validation process. The output data files are generated and ready to be moved to an EDW Enterprise Data Ware-house or any other system based ont he requirement. Hadoop processes very large volumes of data and is highly resource intensive.

Hence, architectural testing is crucial to ensure success of your Big Data project. Poorly or improper designed system may lead to performance degradation, and the system could fail to meet the requirement. At least, Performance and Fail-Over test services should be done in a Hadoop environment.

Performance testing includestesting of job completion time, memory utilization, data throughput and similar system metrics. While the motive of Failover test service is to verify thatdata processing occurs seamlessly in case of failure of data nodes. Router:- It is a layer 3 device which is for exchange of layer 3 protocols like IP. This is called as next-hop for a particular network which routed by any router. Basically communication takes place by exchange of layer 3 packets which mainly contains source and destination IP address but it also contains other detailed information too.

Generally takes place at core and distribution layers of the Cisco 3 layer architecture. Switch:- Switch is a layer 2 device which works on the basis of layer 2 frames.

Frame is something which consists of many elements but very important being source and destination MAC address. It communicates with help of frames and reaches destination. Generally takes place at access layer of the Cisco 3 layer architecture. Since indexes are only used to speed up the searching for a matching field within the records, it stands to reason that indexing fields used only for output would be simply a waste of disk space and processing time when doing an insert or delete operation, and thus should be avoided.

Also given the nature of a binary search, the cardinality or uniqueness of the data is important. Indexing on a field with a cardinality of 2 would split the data in half, whereas a cardinality of 1, would return approximately 1, records. To be blunt, it's a matter of brute force. Simply, it reads through each candidate record in the database and matches the expression to the fields.

Now, if the "table. This reduces the number of candidate records to apply the expression to, otherwise it will just do what we call a "table scan", i. But fundamentally, however it locates the candidate records is separate from how it applies the actual filter expression, and, obviously, there are some clever optimizations that can be done.

Well, a join is used to make a new "pseudo table", upon which the filter is applied. So, you have the filter criteria and the join criteria. The join criteria is used to build this "pseudo table" and then the filter is applied against that. Now, when interpreting the join, it's again the same issue as the filter -- brute force comparisons and index reads to build the subset for the "pseudo table".

But it basically matches RAM blocks to disk blocks. With the modern virtual memory managers, a simpler database can almost rely on the VM as its memory buffer manager. The high end DB's do all this themselves. When data is stored on disk based storage devices, it is stored as blocks of data. These blocks are accessed in their entirety, making them the atomic disk access operation. Disk blocks are structured in much the same way as linked lists; both contain a section for data, a pointer to the location of the next node or block , and both need not be stored contiguously.

If that field is a non-key field i. Whereas with a sorted field, a Binary Search may be used, this has log2 N block accesses. Thus the performance increase is substantial. It's a straight forward technique that has been around for years. It's benefit is shared with most any balanced tree: consistent access to the nodes, plus all the leaf nodes are linked so you can easily traverse from node to node in key order. So, with an index, the rows can be considered "sorted" for specific fields in the database, and the database can leverage that information to it benefit for optimizations.

This is distinct from, say, using a hash table for an index, which only lets you get to a specific record quickly. In a B-Tree you can quickly get not just to a specific record, but to a point within a sorted list. The actual mechanics of storing and indexing rows in the database are really pretty straight forward and well understood. The game is managing buffers, and converting SQL in to efficient query paths to leverage these basic storage idioms.

Then, there's the whole multi-users, locking, logging, and transactions complexity on top of the storage idiom. Note : char was used in place of varchar to allow for an accurate size on disk value. This sample database contains five million rows, and is unindexed.

The performance of several queries will now be analyzed. These are a query using the id a sorted key field and one using the firstName a non-key unsorted field. Instantly we can see this is a drastic improvement.

It is this situation that indexing aims to correct. Given that an index record contains only the indexed field and a pointer to the original record, it stands to reason that it will be smaller than the multi-field record that it points to. So the index itself requires fewer disk blocks than the original table, which therefore requires fewer block accesses to iterate through. The schema for an index on the firstName field is outlined below;.

Now a search using the firstName field can utilise the index to increase performance. A thread should be used in a long running process that would block the UI from updating. If it's more than a second or two you might want to put it into a background thread and notify the user with a dialog or spinner or something. If you lock the UI thread for more than 5 seconds the user will be prompted with a "kill or wait" option by the OS. A service does not run on separate thread, so it will block the UI, but you can spawn a new thread within a service.

It requires three data structures. Second one is a double linked list for each frequency of access. The max frequency is capped at the cache size to avoid creating more and more frequency list entries. If we have a cache of max size 4 then we will end up with 4 different frequencies. Each frequency will have a double linked list to keep track of the cache entries belonging to that particular frequency.

The third data structure would be to somehow link these frequencies lists. It can be either an array or another linked list so that on accessing a cache entry it can be easily promoted to the next frequency list in time O 1. It uses a hash table to cache the entries and a double linked list to keep track of the access order.

If an entry is inserted, updated or accessed, it gets removed and re-linked before the head node. The node before head is the most recently used and the node after is the eldest node. When the cache reaches its maximum size the least recently used entry will be evicted from the cache. In order to keep track of access order, we must pass access order true while creating LinkedHashMap.

To implement this, we simply need to override the removeEldestEntry method. LRU is a cache eviction algorithm called least recently used cache.

The algorithm discards the least recently used items first as the cache reaches its maximum size. Silverlight is a cross browser, cross-platform plug-in for delivering media and rich interactive application for the Web. The Silverlight browser plug-in is freely available for all major browsers including Mozilla Firefox, Apple'a Safari and Windows Internet Explorer running on the windows.. Silverlight is based on the Microsoft.

Using Silverlight, designers are able to prepare media for encoding and distribution, and create W3C standards-compliant sites. Defect life cycle, also known as Bug Life cycle is the journey of a defect cycle, which a defect goes through during its lifetime.

It varies from organization to organization and also from project to project as it is governed by the software testing process and also depends upon the tools used. This is a consequence of performing the processes in a certain order. The next step will be fulfilled only after completing the previous one. In accordance with this model, testing is conducted in parallel with the proper development phase.

As well as for waterfall development model, the statement of requirements and creation of specification are the opening stage of the product creation process.

Documentation testing, system checking, and acceptance testing are applied for checking the correct operation of this phase. But before starting the development itself, one creates the test plan which is focused on functional capabilities of the future system according to the certain requirements. On the stage of designing the system architecture, the peculiarities of platform, system itself, technical decisions, processes, and services are defined.

Integration testing is performed for checking the correct operation of the specified system components as a whole. The low level design phase presupposes defining the logic of each system component, the classes and links between them are specified. Component testing will be conducted for checking the system coordination. The code development process is executed at the realization stage of the system architecture.

The coding itself is fulfilled by the development team in accordance with the requirements when the architecture is fully thought out and modeled. In software development, static testing , also called dry run testing , is a form of software testing where the actual program or application is not used.

Instead this testing method requires programmers to manually read their own code to find any errors. Static testing is a stage of White Box Testing. Fuzz testing or fuzzing is a software testing technique used to discover coding errors and security loopholes in software, operating systems or networks by inputting massive amounts of random data, called fuzz , to the system in an attempt to make it crash.

Independent testing corresponds to an independent team, who involve in testing activities other than developer to avoid author bias and is often more effective at finding defects and failures. Returning a large number of records can impact on performance. The bubbles event property returns a Boolean value that indicates whether or not an event is a bubbling event.

The event bubbles up from parent to parent until it is handled, or until it reaches the document object. Create a mark[] array of Boolean type. We iterate through all the characters of our string and whenever we see a character we mark it. Lowercase and Uppercase are considered the same. After iterating through all the characters we check whether all the characters are marked or not. If not then return false as this is not a panagram else return true.

Split both strings into two separate arrays of words, and then iterate over each word of each String in a 2-D array. Add all the elements in the first array to a hashmap and then scan the second array to see if each of the elements exists in the hashmap. Algorithm: 1 Declare a character stack S.

A if leap year, increase the date by 1. B if leap year, and date is 29 or not a leap and date is 28, replace date by 1, feb by mar. Increase i by 1 and decrease j by 1. One approach is to convert the string into string array and swap ith element from the beginning with arraylength - 1 - i th element from the end. One approach is using HashMap. Traverse the sentence and add the words as key and each time the words occurs, increase the corresponding value by 1.

Now print the map. Subscript refers to the array occurrence while index is the displacement in no of bytes from the beginning of the array. So, they undergo all the typical test types. In software development, user acceptance testing UAT - also called beta testing, application testing, and end user testing - is a phase of software development in which the software is tested in the "real world" by the intended audience.

UAT can be done by in-house testing in which volunteers or paid test subjects use the software or, more typically for widely-distributed software, by making the test version available for downloading and free trial over the Web. The experiences of the early users are forwarded back to the developers who make final changes before releasing the software commercially. It is mainly used to traverse array or collection elements. One important difference, is one of usability and convenience, especially given that Collections automatically expand in size when needed:.

Although arrays may give you some speed advantages, unless you need super-fast code, Collections are preferred because they have so much convenience. Array stores homogeneous data. Where , Collection store both homogeneous as well as Heterogeneous data.

Marker Interface in java is an interface with no fields or methods within it. It is used to convey to the JVM that the class implementing an interface of this category will have some special behavior. Hence, an empty interface in java is called a marker interface.

In java we have the following major marker interfaces as under:. The marker interface can be described as a design pattern which is used by many languages to provide run-time type information about the objects. The marker interface provides a way to associate metadata with the class where the language support is not available.

The static import declaration is analogous to the normal import declaration. Where the normal import declaration imports classes from packages, allowing them to be used without package qualification, the static import declaration imports static members from classes, allowing them to be used without class qualification.

IDOC is simply a data container used to exchange information between any two processes that can understand the syntax and semantics of the data. In other words, an IDOC is like a data file with a specified format which is exchanged between 2 systems which know how to interpret that data.

Every IDOC has a unique number within a client. List is one of the simplest and most important data structures in Python. Lists are enclosed in square brackets [ ] and each item is separated by a comma.

Lists are collections of items where each item in the list has an assigned index value. A list is mutable, meaning you can change its contents. Lists have many built-in control functions. Calls to list methods have the list they operate on appear before the method name separated by a dot, e.

Public- scope identifier which mean this method is accessible everywhere i e Within class ,outside class,within package,outside package. A static method can be accessed without creating object if the class. JVM loads static method at the time of class loading. VOID - Is a return type, we apply void with the method signature when we know method is not going to return any value. One approach is to split the sentence when there is a space and store each word into an array of string.

Now convert character of each word String to uppercase and concatenate all the words String elements of array again. Suppose if you are in class room that time you behave like a student, when you are in market at that time you behave like a customer, when you at your home at that time you behave like a son or daughter, Here one person present in different-different behaviors.

Polymorphism is derived from 2 greek words: poly and morphs. The word "poly" means many and "morphs" means forms. So polymorphism means many forms. Polymorphism is not a programming concept but it is one of the principal of OOPs.

In Java, The ability of a reference variable to change behavior according to what object instance it is holding.

The first step is finding them. In a univariate sense, this is already a little tricky as there may be issues of masking, where the presence of one extreme outlier masks others. There is also the problem of what the underlying distribution of the variable is - e.

When you start looking bivariately, the possibilities grow, exponentially. Yet it still could be necessary to look. In a census of a population, a 12 year old is not an outlier and a widow is not an outlier but a 12 Ncert Solutions Of Class 10th Maths Exercise 12.3 An year old widow is one.

With multivariate data things are really hard: In one sense, every data point in a space with many dimensions is an outlier. Then you have to decide what to do. You don't specify what methods you are using regression? Factor analysis? However, this may be a reasonable option in other cases if you want to keep the statistics simple.

This may serve other purposes as well. It probably shouldn't be used just because there is an outlier, but it may help deal with outliers. Quantile regression instead of "regular" regression. PEGA is a platform which provided a systematic approach to build and deploy process-oriented and rule based solution and applications.

Business Process Management, Customer relationship management, Decision management and case management solutions are some of the examples where process and rules are integral part of application development.

The best part is this Designer studio is web based so a developer can work and create solutions from anywhere in the world. Autowiring feature of spring framework enables you to inject the object dependency implicitly.

It internally uses setter or constructor injection. Autowiring can't be used to inject primitive and string values. It works with reference only. D ependency injection DI is a process whereby objects define their dependencies, that is, the other objects they work with, only through constructor arguments, arguments to a factory method, or properties that are set on the object instance after it is constructed or returned from a factory method.

The container then injects those dependencies when it creates the bean. This process is fundamentally the inverse, hence the name Inversion of Control IoC , of the bean itself controlling the instantiation or location of its dependencies on its own by using direct construction of classes, or the Service Locator pattern. It also provides a framework for integrating the existing custom tags with the JSTL tags.

So, JSTL JavaServer Pages Standard Tag Langauge is a library of XML tags used to provide a means of executing conditional logic, iteration, and switch block logic, as well as parsing and manipulating XML, parsing date and numerical formats and strings, building URLs, and even providing database access which is fine for prototyping, but one downside may be that you Ncert Solutions Class 10th Maths Chapter 1 Days CAN use JSTL to access a database, which might encourage some developers to lazily mix data access logic into their view layer.

A JSP life cycle is defined as the process from its creation till the destruction. This is similar to a servlet life cycle with an additional step which is required to compile a JSP into servlet. Ant and Maven both are build tools provided by Apache. The main purpose of these technologies is to ease the build process of a project.

Defect life cycle , also known as Bug Life cycle is the journey of a defect cycle, which a defect goes through during its lifetime. Partitioning allows tables, indexes, and index-organized tables to be subdivided into smaller pieces, enabling these database objects to be managed and accessed at a finer level of granularity.

Oracle provides a rich variety of partitioning strategies and extensions to address every business requirement. SQL Loader is a bulk loader utility used for moving data from external files into the Oracle Database. Its syntax is similar to that of the DB2 load utility, but comes with more options. SQL Loader supports various load formats, selective loading, and multi-table loads.

A DSO DataStore Object is known as the storage place to keep cleansed and consolidated transaction or master data at the lowest granularity level and this data can be analyzed using the BEx query.

A DataStore Object contains key figures and the characteristic fields and data from a DSO can be updated using Delta update or other DataStore objects or even from the master data. Exponents Practice Questions and Quick Tutorial 1.

Use the Multiplication Law of Exponents to simplify the exponential expression below. In fact, though, an exponent is just short hand for saying that you're multiplying a number by itself two or more times.

The correct answer is Choice C. We read it as " a to the power of b ". Simplify the following: x 2 x 3. When several terms of an expression is raised to anSee All area asymptotes critical points derivative domain eigenvalues eigenvectors expand extreme points factor implicit derivative inflection points intercepts inverse laplace inverse laplace partial fractions range slope simplify solve for tangent taylor vertex geometric test alternating testMultiple choice, objective response, or MCQ for Multiple Choice Question is a form of an objective assessment in which respondents are asked to select only correct answers from the choices offeredSimplifying Exponents and Algebraic Expressions with Exponents Quiz Algebra I.

Properties of exponentials. Exponent - The number of times a quantity is multiplied by itself. Simplifying Rational Exponents. Kelly made the first multiple choice questions in at the University of Kansas. Removing book from your Reading List will also remove any bookmarked pages associated with this title. Exponents can simplify very ugly math problems and their relation to logarithms makes them invaluable.

Identify the base, identify the exponent, write out the base the number of times indicated by the exponent. Simplification is a somewhat vague term, and more precises alternatives to simplify exists: powsimp simplification of exponents , trigsimp for Sympy is able to solve a large part of polynomial equations, and is also capable of solving multiple equations with respect to multiple variables givingThis Word template allows instructors and researchers to make their own multiple choice 3 answer tests, exams and surveys.

Rewrite the following rational form in radical form and simplify when possible: a 3 4 a. Express as a power of 3. This calculator will simplify fractions, polynomial, rational, radical, exponential, logarithmic, trigonometric, and hyperbolic expressions.

In this exponent worksheet, students solve ten multiple-choice questions regarding simplifying with exponents. Simplify the expression: x4 x5 x3 a. Multiple choice questions are fundamental survey questions which provides respondents with multiple answer options.

They may be hard to get used to, but rational exponents can actually help simplify some problems. Algebra 1 unit 7 Ncert Solutions For Class 10 Maths Ch 8 Ex 8.3 Pdf exponent rules worksheet 2 simplify each worksheets 34 negative exponents answers project list two practice test: powers and laws for law of exponential expressions promotiontablecovers Multiple choice interactive provides quick feedback for students reviewing how to simplify expressions with exponents.

Sorry if i seemed a little confused, just I was bred on a calculator, and now my calc ab teacher wont let us use any type of calculator. Multiple Inequalities. Free worksheets for simplifying algebraic expressions With this worksheet generator, you can make printable worksheets for simplifying variable expressions for pre-algebra and algebra 1 courses.

Learn vocabulary, terms and more with flashcards, games and other study tools. Upgrade to remove adverts. Some of the worksheets for this concept are Exponents bundle 1, Laws of exponents work, Practice exponents date name multiple choose the, Exponent rules review work, Newtons law multiple choice questions, Exponent rules practice, Mastering the staar high school algebra 1 exam, More properties of exponents.

The product rule is: when you multiply two powers with the same base, add the exponents. Finish each rule. This means that, if you have a lock that requires the person to enter 6 different digits from a choice of 10 digits, and repetition is okay but order matters, there are Laws Of Exponents Simplifying Practice Problems.

Law Of Exponents Multiple Choice. Usage: Whether selected choices should be removed from the list. Merely said, the laws of exponents simplifying practice problems is universally compatible with any devices to read Overdrive is the cleanest, fastest, and most legal way to access Algebra 1 answers to Chapter 7 - Exponents and Exponential Functions - Zero and Negative Exponents - Practice and Problem-Solving Exercises - Page 17 including work step by step written by community members like you.

Exponent Rules Review Worksheet. This could be used as test practice or as a quiz. To multiply the exponential terms, use the product rule, x a. Only RUB The simplify calculator will then show you the steps to help you learn how to simplify your algebraic expression on your own.

For instance, the shorthand for multiplying three copies of the number 5 is shown on the right-hand side of the Simplify x2 4. Decide whether the expression has been simplified correctly.

This expression can be simplified by using exponent rules. Practice questions on exponents gives an insight into the dealing of questions on the test. Format: A text in which there are some numbered gap, each of which represents a word or phrase. Simplifying Polynomials. Examples and solved exercises: simplifying powers and exponents applying the properties and the rules: power of a product, product of powers, power of a power, power of a Content of this page: Introduction.

In 43 � 45, evaluate the expression for. Typing Exponents. A complex number is a number that combines a real portion with an imaginary portion. Finally simplify your answer and you will have just evaluated an exponent. Here is a simple exampleKuta Software - Infinite Algebra 2. Multiple Choice Questions Multiple choice interactive provides quick feedback for students reviewing how to simplify expressions with exponents.

Exponents are numbers that are placed on top If the exponent is a positive integer, exponentiation corresponds to repeated multiplication of the base, so what does it mean if the exponent is a negativeQuadratic Equations. Key: C. Algebra 1 unit 7 exponent rules worksheet 2 simplify each worksheets 34 negative exponents answers project list two practice test: powers and laws for law of exponential expressions promotiontablecovers View A Exponents Multiple Choice.

In order to find the actual value of an exponent, students must first understand what it means: repeated multiplication.

Simplifying expressions using the Laws of Exponents We can use what we know about exponents rules in order to simplify expressions with exponents. Objective: You must substitute polynomials into an expression and then simplify the resultingMultiple choice questions MCQ are popularly known to help in survey questionnaires and education exams.

Start studying Simplifying Exponents. Vocabulary Multiple Choice Cloze. Merely said, the laws of exponents simplifying practice problems is universally compatible with any devices to read Overdrive is the cleanest, fastest, and most legal way to access 1.

It includes an answer Read Book Laws Of Exponents Simplifying Practice Problems get the most less latency time to download any of our books like this one. Levels of Difficulty : Elementary Intermediate Advanced. Simplifying Exponents multiple choice questions.

Determine this amount then decide which choice would be the best choice. Therefore, the correct answer is 7. Content: Passport to Advanced Math. Optional Set up any additional options or settings. Before we dive into simplifying exponents, let's take some time to learn exactly what an exponent is. Remember, all these strategies are just shortcuts to help simplify more complicated equations. The result can be shown in multiple forms.

At a minimum, multiple choice problems include a question or prompt and several answer options. Express each of the following in simplest terms.

This quiz and attached worksheet will help gauge your understanding of simplifying expressions with rational exponents. Now instead of using the exponent 2 2, use the exponent 1 2 1 2. Inequalities involving addition, subtraction, multiplication, and division.

Simplify the inner fraction first. FYI logarithms were invented before exponents. Exponents And Powers Simplify the following expression using positive exponents. Algebra is one of the core courses in mathematics. Task Type: Multiple-choice cloze. Cancel out any variables or constants that are the same in both the numerator and denominator.

Simplifying Expressions with Exponents. Your answer should contain only positive exponents. D: It explains how to simplify exponential expressions with zero exponents and tells you when you add, subtract, or multiply two exponents together. Algebra 1 unit 7 exponent rules worksheet 2 simplify each worksheets 34 negative exponents answers project list two practice test: powers and laws for law of exponential expressions promotiontablecovers Exponent Laws Multiple Choice Quiz You can even use exponents with fractions.

Since the bases of the factors are the same, multiply them by adding the exponents. Frederick J. This is a 10 question multiple choice presentation on simplifying algebraic expressions. Exponent is a number which tells us how many times a number has been multiplied by itself. Multiple choice questions contain 3 answers and only one of them is correct. I'm looking for active maintainers for this project as I no longer have the time to support it.