STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Draw ISO-OSI model and explain in brief function of each layer.
8 M
1 (b)
Compare Coaxial Cable, Twisted pair cable and Fibre optic cables.
6 M
1 (c)
Explain in brief physical address, network address and port number.
4 M
2 (a)
Draw and explain typical cable TV system. How cable video signal and internet data can be send over the same cable.
8 M
2 (b)
What is DSL? Explain any two types of DSL.
6 M
2 (c)
Compare circuit switching and packet switching network.
4 M
Answer any one question from Q3 and Q4
3 (a)
Explain Go Back-N ARQ and Selective Repeat ARQ protocol.
6 M
3 (b)
What is framing concept in Data Link Layer? Explain in details.
6 M
3 (c)
How does token ring LAN operate?
4 M
4 (a)
Explain the following:
i) 1-persistent CSMA
ii) Non-persistent CSMA
iii) P-persistent CSMA
i) 1-persistent CSMA
ii) Non-persistent CSMA
iii) P-persistent CSMA
6 M
4 (b)
Draw HDLC frame format. Write function of each field.
8 M
4 (c)
Compare the data rates for standard Ethernet, Fast Ethernet, Gigabit Ethernet and Ten-Gigabit Ethernet.
2 M
Answer any one question from Q5 and Q6
5 (a)
What is VLAN? How does it work? Explain with necessary diagram.
6 M
5 (b)
What is Frame Relay? Explain the different frame formats used in frame relay.
10 M
6 (a)
Write short notes on:
i) Gateway
ii) Hub
iii) Routers
i) Gateway
ii) Hub
iii) Routers
6 M
6 (b)
Explain the functions of different layers in Bluetooth. Also explain the different types of frame formats used in Baseband Layer.
10 M
Answer any one question from Q7 and Q8
7 (a)
What services are provided by network layer to transport layer?
6 M
7 (b)
Briefly define subnetting. How do the subnet mask differ from a default mask in classful addressing?
6 M
7 (c)
Why is ARP request broadcast but ARP reply unicast?
4 M
8 (a)
Show the format of typical IP datagram header and explain.
6 M
8 (b)
What are different static routing algorithms? Explain any one in detail.
6 M
8 (c)
What is DHCP? How does it work?
4 M
Answer any one question from Q9 and 10
9 (a)
Explain the different Quality of Service parameters. Also write about transport layer service primitives.
6 M
9 (b)
Explain connection establishment and connection releasing with respect to transport layer.
6 M
9 (c)
What are the duties of transport layer? List the services provided by transport layer to upper layers.
4 M
10 (a)
Draw TCP header. Explain function of each field.
6 M
10 (b)
How congestion affects network performance? Also explain the difference between flow control and congestion control.
6 M
10 (c)
What is socket address? Explain.
4 M
Answer any one question from Q11 and Q12
11 (a)
Explain Telnet and FTP in detail with respect to server and client communication.
8 M
11 (b)
What is DNS? Explain the components of DNS system.
6 M
11 (c)
What is the function of SMTP and POP-3 protocols in E-mail system?
4 M
12 (a)
Distinguish between public key and private key algorithm. State the advantages of RSA algorithm.
8 M
12 (b)
What are the main responsibilities of Application layer? Explain in brief.
6 M
12 (c)
What is URL and what are its components?
4 M
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