Bit2108:Computer Networks Question Paper
Bit2108:Computer Networks
Course:Bachelor Of Information Technology
Institution: Meru University Of Science And Technology question papers
Exam Year:2014
(a) Define the following: (i) Computer Network (ii) NIC (iii) Protocols (6 Marks) (b) State any 3 modes of communication on a network. (3 Marks) (c) Outline the three switching techniques. (3 Marks) (d) Briefly mention any two advantages of Multiplexing. (2 Marks) (e) (i) State the five OSI layers. (5 Marks) (ii) Give one protocol under each layer mentioned in, (e) (i) above. (3 Marks) (f) Differentiate between the following terms: (i) Client-server and peer-to-peer networks. (ii) Demand priority and polling (iii) Repeater and Switch (iv) Unbounded and Bounded networking. (8 Marks)
QUESTION TWO – (20 MARKS)
(a) (i) Describe the three types of cables used in networking. (6 Marks) (ii) Give the practical use of any two of the cables mentioned in (a) (i) above. (2 Marks) (b) Discuss any five networking topologies. (10 Marks) (c) Standards are needed in networking. Justify this statement. (2 Marks)
QUESTION THREE – (20 MARKS)
(a) Explain the relevance of the following software in networking. Give examples. (i) Network operating system. (ii) Web Browsers (iii) DBMS (6 Marks) (b) (i) CSMA/CD is preferable to CMSA/CA. Discuss (4 Marks) (ii) Explain the back-off algorithm (4 Marks) (c) Analog and digital signals use different multiplexing techniques. Discuss the multiplexing techniques for each kind of signal. (6 Marks)
QUESTION FOUR – (20 AMARKS)
(a) Define protocol (2 Marks) (b) Discuss the differences between OSI and TCP/IP networking architectures.(6 Marks) (c) Using appropriate illustrations compare and contrast the Synchronous and Asynchronous transmissions. (6 Marks) (d) Explain the two analog modulation techniques used in networking. (6 Marks)
QUESTION FIVE – (20 MARKS)
(a) Differentiate between: (i) Bandwidth and Frequency (ii) Gateway and bridge (iii) Stand alone computer and workstation. (6 Marks) (b) Discuss any 2 advantages associated with the use of fiber optic cables. (4 Marks) (c) Explain two functions of the network interface cards. (4 Marks) (d) (i)List differences between FDM and TDM. (4 Marks) (ii)Which method is suitable for communication between computers and why? (2 Marks)
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