CS Computer Networks Two Marks Questions With Answers Anna University, Chennai. Anna_University,_Chennai_logo. UNIT I. 1. Explain ISO/OSI . CS COMPUTER NETWORKS TWO MARK QUESTIONS WITH ANSWERS ANNA UNIVERSITY QUESTION BANK BY SELVAM COLLEGE OF. A Computer network is a number of computers interconn this is for 2 marks and 16 marks question papers for data communication. Copyright: Attribution CSComputer Networks – Anna University Engineering Question Bank 4 U. Uploaded Mobile Communication 2-MARK Questions and Answers. Uploaded .

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What is the difference between service point address, logical address and physical address? The disadvantages of optical fiber are Very expensive.

SMTP provides mail exchange between users on the same or different computers. A trailer is added at layer2. It is the error detecting mechanism, which means a shorter group of bits or extra bits may be appended at the destination of each unit.


What is the DC component? The value of the code sub field is 10 Reject REJ. After the connection, all packets follow the same route and arrive in sequence. Write short notes about repeaters, routers and gateways. The receiver must able to prove that a received netwoks came from a specific sender.

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Internet Control Message Protocol is a collection of error messages that are sent back to the source host whenever a router or host is unable to process an IP datagram answegs A router gets its information about its neighbors by periodically sending them a short greeting packets.


The node sends a Aand frame. A packet switch is a device with several inputs and outputs leading to and from the hosts that the switch interconnects. What are the three fundamental characteristics determine the effectiveness of the data communication system?

In longitudinal redundancy check LRCa block of bits is divided into rows and a redundant row of bits is added to the whole block. This information is nefworks in the form of headers or trailers. What is a buffer?

These allow interoperability among unrelated software system. It is the error detecting mechanism, which means a shorter group of bits or extra bits may be appended at the destination of each unit.

In link state routing, a small packet containing routing information sent by a router to all other router by a packet called link state packet. Anna University Department of Civil Engineering B. Switched virtual circuit format is comparable conceptually to dial-up line in circuit switching. Mention the types of errors. These functions are handled by the IEEE Newer Post Older Post Home. If the neighborhood responds to the greeting as expected, it is assumed to be alive and functioning.

How does a given bridge learn whether it should forward a multicast frame over a given port? What are the functions of a DTE?

What does the electrical specification of EIA describe? The majority of nodes can then derive their absolute location by combining an estimate of their position relative to the beacons with the absolute location information provided by the beacons.

What is meant by congestion? What are the disadvantages of optical fiber as a transmission medium? All the devices share the link equally.


The control data added to the end of a data is called trailers. Explain about congestion control. LAN is dominated by 4 architectures. The Primary station sends commands to the secondary station.

Anna University Chennai CS – COMPUTER NETWORKS(Regulation ) model question papers

Page 9 of 24 8. It is the popular mechanism for continuous transmission error control. What is meant by congestion?

Signals are actually electromagnetic waves traveling at the speed of light. The ID for the bridge that is sending the message. Even when one packet represents just a place of a multi packet transmission, the network treats it although it existed ckmputer.

At the receiving machine, the headers or trailers attached to the data unit at the corresponding sending layers are removed, and actions appropriate to that layer retaken. The control data added to the beginning ahd a data is called headers.

CS – Computer Networks – 2 & 16 Marks with answers :Study Zone

The error detection method used by the higher layer protocol is called checksum. What are the responsibilities of network layer? Discuss the basic model of FTP. Environmental science and engineering Questio A passive hub provides a simple physical connection between the attached devices.

The secondary station sends responses.