Computer Networks Year Question bank. Uploaded by . Check the answer (10) b. Bit stuff the . ec computer networks question bank. Uploaded by. PART-A(10 × 2 = 20). (Answer all the Questions). 1. Define a computer network. 2 . What is the similarity between transport layer and data link layer? 3. Define. ECCOMPUTER NETWORKS. ALL UNITS – QUESTION BANK answer. 28 . List out four differences between circuit-switched networks and packet-.

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EC Computer Networks – Question Bank and Important Questions – Edition

How to request Study Material? It is similar to that of signing transactions documents when you do business with a bank. The specific responsibilities of network layer include the following: HTML is a computer language for specifying the contents and format of a web document.

Two entities cannot just send bit streams to each other and expect to be understood. Piggy backing means combining data to sent and acknowledgement nefworks the frame received in one single frame.


In the NRZ-L sequence, positive and negative voltages have specific meanings: The combining process is called concatenation. Define registered hosts according to their generic behavior, uses generic suffixes.


Raghavendra Reddy Malapati Page 8 6. Data circuit-terminating equipment is a device used as an interface between a DTE and a network.

What is meant by quality of service? SMTP provides mail exchange between users on the same or different computers. One or more synchronization bits are usually added to the beginning of each frame.

The control data added to the beginning of a data is called headers. In longitudinal redundancy check LRCa block of bits is divided into rows and a redundant row of bits is added to the whole block.

Computer Networks EC notes – Annauniversity lastest info

What is selective reject ARQ? Raghavendra Reddy Malapati Page 2 9. The network support layers are Physical layer, Data link layer and Network layer. Raghavendra Reddy Malapati Page 14 Disadvantage: What is framing bits? An active hub contains a repeater that regenerates the received bit patterns before sending them out.

EC2352 Computer Networks MJ2014 Question Paper

What is time-to-live or packet lifetime? 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 are taken.


Write down the three netorks of WWW documents. Like Ethernet, station communicates via a common bus. One connection is used networkw data transfer, the other for control information. What is the difference between a passive and an active hub?

What is a virtual circuit? The services provided by the transport layer End-to- end delivery Addressing Reliable delivery Flow control Multiplexing 3.

What are the duties of the transport layer? What are the responsibilities of data link layer? Describe the three HDLC station types?

Where is the Menu? The three basic techniques of multiplexing are, Frequency-division multiplexing Time-division multiplexing Wave-division multiplexing 9.