application layer questions and answers pdf

Application Layer Questions And Answers Pdf

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Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.

Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews. Take a quick online test. Attempt a small test to analyze your preparation level.

Application Layer Protocols (DNS, SMTP, POP, FTP, HTTP) Study Notes

Answer: Whereas SMTP is a push protocol; the task of transferring messages from the recipient s mail server to the recipient s personal computer is a pull operation.

This imposes a high overhead in delay that is acceptable for larger transfers but not acceptable for very short messages such as DNS queries and responses. In addition, UDP affords a smaller packet size and also imposes a smaller load on name servers due to its simplicity in comparison to TCP. Briefly describe how your travels from your host to your friend s host.

Also, what are the applicationlayer protocols involved? Your mail server then sends the message to your friend s mail server over SMTP. Answer: Instant Messaging involves the initiator to contact a centralized server to locate the address IP address.

After this, the instant messaging can be peer to peer message between the two communicating parties are sent directly between them. Suppose the object in the server has not changed since the last time that client retrieved the object. Answer: Iterated request can improve overall performance by offloading the processing of requests from root and TLD servers to local servers.

In recursive queries, root servers can be tied up ensuring the completion of numerous requests, which can results in a substantial decrease in performance.

Iterated requests move that burden to local servers, and distributed the load more evenly throughout the Internet. With less work at the root servers, they can perform much faster.

Parse page and find that there are 3 objects. Further suppose that the web page associated with the link contains exactly one object, consisting of a small amount of a small amount of HTML text. Assuming zero transmission time of the object, how much time elapses from when the client clicks on the link until the client receives the object? The rest of the parameters are the same as in that problem. The average delay to download the objects is: a between 1.

Without any chunks, she cannot become a top-four uploader for any of the peers, since she has nothing to upload. How then will Alice get her first chunk? Answer: Alice will get her first chunk as a result of she being selected by one of her neighbors as a result of an optimistic unchoke, for sending out chunks to her. Recall that a peer periodically selects one of its neighbours at random as a peer for uploading irrespective of whether this neighbour is uploading data to it or not.

Consequently, the assignment of keys to the peers does not take into account the underlying network topology. Do you think this may have an impact of the search performance? Answer: Yes. The delay between successive nodes in DHT can be high because they may be separated by a long distance. It is also possible that the throughput between two successive nodes is low because the underlying network has a low bandwidth.

Explain how peer 6 would join the DHT. You may assume that peer 15 is the designated contact peer for the DHT. Answer: The sequence of actions is: 1. Peer 6 will contact Peer 15 with a join request. Peer 15, whose successor is peer 1, knows that Peer 6 should not be its successor. Peer 15 will forward the join request from Peer 6 to Peer Peer 1, whose successor is peer 3, knows that Peer 6 should not be its successor.

Peer 1 will forward the join request from Peer 6 to Peer 3. The actions of peers 3 and 4 are identical to those of peers 15 and The join request will finally arrive at peer 5. Peer 5 knows that its current successor is peer 8, therefore peer 6 should become its new successor.

Peer 5 will let peer 6 knows that its successor is peer 8. At the same time, peer 5 updates its successor to be peer 6. Even if you get a wrong answer, you can get partial credit. Note: In all written assignments, please show as much of your work as you can. Even if you get a wrong answer, you can get partial credit if you show your. CSe Quiz 5 The first correct 10 answers will be worth 1 point each.

Each subsequent correct answer will be worth 0. Circle the correct answer. Instructions: Put your name and student number on each sheet of paper! The exam is closed book. You have 90 minutes to complete the exam. Be a smart exam. This is a closed book exam 2.

Chapter 2 Review Questions 1. Network architecture refers to the organization of the communication process. Transport Layer Protocols Version. Transport layer performs two main tasks for the application layer by using the network layer. It provides end to end communication between two applications, and implements. Jim Kurose Instructions: There are 4 questions on this exam. Please use two exam blue books answer questions 1, 2 in one book, and the remaining.

The problem set consists of two parts: Part I: The problem specifications pages. Be a smart exam taker -. Application Layer Abusayeed Saifullah CS Computer Networks These slides are adapted from Kurose and Ross Web caches proxy server goal: satisfy client request without involving origin server v user.

Laboratory 12 Applications Network Application Performance Analysis Objective The objective of this lab is to analyze the performance of an Internet application protocol and its relation to the underlying.

Name: 1. What is an Enterprise network and how does it differ from a WAN? Describe in detail what a managed service that an ISP might. There is a Word Bank on Page 8. Pages can be removed from the exam. Computer Networks Homework 1 Reference Solution 1. Also suppose each user requires kbps when transmitting, but each user transmits only 10 percent of the time.

Networking, its all about the apps! No extension. Distributed Systems 2. Chapter 2 Application Layer A note on the use of these ppt slides: We re making these slides freely available to all faculty, students, readers. They re in PowerPoint form so you see the animations;.

Communications and Networking History and Background telephone system local area networks Internet architecture: what the pieces are and how they fit together names and addresses: what's your name and. A group of two or more devices,. Application layer Protocols application transport data link physical Network Applications and Application Layer Protocols Network applications: running in end systems hosts distributed, communicating. Name the organisation responsible for setting international standards and explain why network standards.

Let's consider the operation of a learning switch in the context of a network in which 6 nodes labeled. Consider a circular DHT with 7 nodes numbered 0,, A client.

Efficient content distribution system using file swarming. Usually does not perform all the functions. Chapter 2 Application Layer All material copyright J. F Kurose and K. Why Measure the Network? Lecture 2-ter. What happens HTTP 1. Browser opens a TCP transport.

A VPN virtual private network is a private data network that uses public telecommunicating infrastructure Internet , maintaining. Introduction: Why do we need computer networks?

Karin A. Hummel - Adapted slides of Prof. Plattner, plattner tik. It is now considered. Differentiate between internet and intranet. What are the two types of spread spectrum?

Define hamming distance. What are carrier sense protocols? What are the two types. The example will cover a simple, but very common case.

Networking MCQ Computer Questions Answers PDF Download

Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host? Students can learn and improve on their skillset for using Application Layer - Networks Questions and Answers effectively and can also prepare for competitive examinations like They are explained in elaborated manner to get clear subject knowledge. Application Layer - Networks Questions and Answers pdf free download are very useful in all the kinds of competitive examinations from Clerk level to Officer level. These tests will assess the individual's computational capabilities which are useful in the day to day work in Banks, Insurance Companies, LIC AAO and other government offices.

Application Layer is responsible for providing a user interface between user and Network with the help of applications like web browsers. Cyclic Redundancy Check is used to detect errors in the network. Which layer provides the logical addressing that routers will use for path determination? Which layer specifies voltage, wire speed, and pinout cables and moves bits between devices? Which layer combines bits into bytes and bytes into frames, uses MAC addressing, and provides error detection? Which layer is responsible for keeping the data from different applications separate on the network? Which layer provides the physical transmission of the data and handles error notification, network topology, and flow control?

Solutions to the Sample Questions on Application Layer

What is the function of SMTP? SMTP provides mail exchange between users on the same or different computers. The UA prepares the message, creates the envelope, and puts the message in the envelope.

In this Application Layer Questions and Answers section you can learn and practice Application Layer Questions and Answers to improve your skills in order to face technical inerview conducted by organisations. By Practicing these interview questions, you can easily crack any Exams interview. Fully solved examples with detailed answer description. You no need to worry, we have given lots of Application Layer Questions and Answers and also we have provided lots of FAQ's to quickly answer the questions in the Competitive Exams interview.

We have compiled the most frequently asked Networking Interview Questions and Answers that will help you to prepare for the Networking basics interview questions that an interviewer might ask you during your interview. In this list of Networking interview questions, we have covered all commonly asked basic and advanced interview questions on networking with detailed answers to help you clear the job interview. This detailed guide of Network Engineer interview questions will help you to crack your Job interview easily. A link refers to the connectivity between two devices. It includes the type of cables and protocols used for one device to be able to communicate with the other.


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