RAYAT INSTITUTE OF ENGG. AND TECHNOLOGY
Computer Networks (EC-402)
8th Sem
Question Bank
Subjective Questions (Easy)
Section – A ( 2 marks questions)
1. Define Network.
2. What do you mean by term Topology?
3. What is a protocol?
4. Identify the five components of Datat Communication System.
5. Why are protocols needed in data communication system.
6. What do you understand by term Line Configuration?
7. What are the two types of Line Configuration? Name them.
8. Name five basic Network topologies.
9. What is the difference between internet and Internet.
10. What is Extranet?
11. How many layers does an OSI reference Model has? Name them in
order.
12.What is peer-to-peer process?
13. Which layer of OSI model are User Support Layers?
14.Which layers of OSI model are Network support layers?
15. Which layer of OSI model is for end-to-end transmission?
16.Name some services provided by Application layer.
17.What is the difference between LAN, MAN & WAN?
18.Differentiate between analog and Digital signal.
19.Give difference between parallel and serial transmission of data.
20.Differentiate between Synchronous and Asynchronous transmission of
data.
21.Differentiate between Periodic and Non-Periodic Signals.
22. Give difference between frequency and Amplitude.
23.Give difference between Bit rate and Bit Interval.
24. What is a Modem?
25.Differentiate between Guided and Un-guided Media.
26.Give two examples of Guided and Un-Guided media.
27.Differentiate between UTP and STP cable.
28.What is Optical Fiber?
29.What do you mean by term Attenuation?
30.What is Noise?
31.Which layer of OSI model deals with Framing?
32.Give full form of ICMP and IGMP.
33.What is a Hub?
34.Give difference between Hub and Repeater.
35.Hub works at which layer?
36.What is the function of Router?
37.What is the function of Gateway?
38.Which layer of OSI model corresponds to IP layer of TCP/IP model?
39.Router works at which layer?
40.What is the difference between Netid and Hostid?
41.What is an IP address?
SECTION – B (5 marks Questions)
1. Give names of three transmission modes and explain them in detail.
2. What are various network Topologies? Explain any two in detail with
diagram.
3. Give advantages and disadvantages of Star topology.
4. Give advantages and disadvantages of Bus topology.
5. Give advantages and disadvantages of Mesh topology.
6. Give advantages and disadvantages of Ring topology.
7. Explain Hybrid and Tree Topology.
8. What is Classfull Addressing? Explain.
9. What are the various Classes available? Explain.
10.What is Masking? Explain with Example.
11.Find the class of the network if the address is 221.46.75.64.
12.What is the function of RARP?
13.Explain CSMA/CD and its uses.
14.Compare ICMP and IGMP.
15. Compare Coaxial cable and Optical Fiber.
16.What is the major advantage of STP over UTP cable?
17.Why Coaxial cable is superior to twisted pair cable?
18.How do guided media differ from unguided media?
SECTION – C (10 Marks Questions)
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Explain all Data transmission modes.
Explain any four topologies.
What are the Responsibilities of Data Link Layer in OSI model?
What is difference between Port address, IP address and NIC
Address?
What are the responsibilities of Network Layer in OSI model?
Explain OSI model in detail. With diagram.
Explain the working of Optical Fiber.
What are header and Trailer, and how do they get added and
removed?
What is the difference between Network layer delivery and transport
layer Delivery?