Data communication model paper for | Awkum and Gpgc mardan

Note: Attempt all questions 


Q.1: Fill in the blanks with correct words. (06)

1: Routing is performed on _________ layer of OSI Model.

2: The process of removing header from the packet is called_________.

3: Message is divided into segments on _____________________ layer

4: MAC address is__________________________________ bits long.

5: Default subnet mask of class C addresses is ________________.

6: If a signal changes instantaneously, its frequency is_________.

Q.2: Give a short answer for the following. (14)

>What are the responsibilities of Data Link layer?
>What is the difference between software and protocol?
>What is digital signal?
>What is the difference between period and frequency?

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>What is the difference between synchronous and asynchronous transmission?
>What is the difference between simplex and duplex communication?
>What is the difference between point to point and multipoint connection?

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Q.3: What is Data Communication? Explain Components of Data Communication.       (10)
Q.4: What is Topology? Explain different types of topologies.       (10)
Q.5: What is line coding? Explain Manchester and differential Manchester encoding schemes (10)
Q.6: What is transmission medium? Explain its types.       (10)

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