Class lecture notes for third Year,sixth semester Computer Networks (Subject Code: EC) is available here in PDF formats for you to. In recent years, the network that is making significant impact in our day-to-day life is the Computer network. By computer network we mean an interconnected set. EC / EC62 / EC Computer Networks Complete Notes-Unit Wise ECE 6th Semester Regulation | BE Electronics and Communication.

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Effect of one wire on another is called as cross talk.

EC – Computer Networks Important Questions | JPR Notes

Two entities cannot just send bit streams to each other and expect to be understood. What are the functions of LLC?

Permanent virtual circuits networkz comparable to leased lines in circuit switching. At the receiving machine, each layer removes the data meant for it and passes the rest to the next layer. What are the responsibilities of data link layer?

Write short notes on CRC generator. The secondary station sends responses. List out the available detection methods. If there are no standards, difficulties arise.

Token Bus is a physical bus that operates as a logical ring using tokens.

EC Computer Networks Lecture Notes – NPR Edition

G e ne r ic domain: Token ring resolves this uncertainty by requiring that stations take turns sending data. After receiving the data appended with the CRC it does the same modulo-2 division. Data entworks equipment is a device that is an information source or an information sink. Raghavendra Netwoks Malapati Page 14 Disadvantage: IP address is the 3-bit number for representing a host or system in the network.


They Route packets from one network to any of a number of potential destination networks on internet routers operate in the physical, data link and network layer of OSI model.

Otherwise, the received stream of bits is discarded and the dates are resent. In this method, the same virtual circuit is netwofks between two uses on a continuous basis.

Define a standard For each connection, the user can request a particular attribute each service class is associated with a set of attributes. Routers relay packets among multiple interconnected networks. What is a buffer?


Raghavendra Reddy Malapati Page 2 9. P e e r -t o-peer relationship: Intel Corporation and Xerox. Write short notes on VRC.

SMTP provides mail exchange compuuter users on the same or different computers. List out the user related attributes? Packets in this technology are referred to as datagram. One connection is used for data transfer, the other for control information.

The most important criteria are performance, reliability and security. If a frame is corrupted in transit, a NAK is returned and the frame is resent out of sequence. In networks, communication occurs between the entities in different systems. It contains synchronization, flag, flow and error control specifications necessary to move information from one place to another, as well as the physical address of the next station to receive and route a packet.

These functions are handled by the IEEE S frames — noted only to transport control information, primarily data link layer and error controls.


What is meant by switched virtual circuit? In network transactions, you can create an equivalent of an electronic or digital jotes by the way you send data. The documents in the WWW can be grouped into three broad categories: The system must deliver data to the correct destination. Here stations are logically organized into a ring. Domain Name System can map a name to an address and conversely an address to name. Permutation is transposition in bit level. The transport layer is responsible form source-to-destination delivery of the entire message.

In public key, there are two keys: One wire will be the sending antenna and the other wire will be the receiving antenna. What is framing bits?

EC2352 – Computer Networks Important Questions

Raghavendra Reddy Malapati Page 12 The pathway requiring the smallest number of relays, it is called hop-count routing, in which every link is considered to be of equal length and given the value compuyer.

Data communication is the exchange of data in the form of 1s and 0s between two devices via some form of transmission medium such as a wire cable. It is the mechanism to correct the errors and it can be handled in 2 ways.