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Ntwg 633: Networking Protocols And Design Question Paper

Ntwg 633: Networking Protocols And Design 

Course:Master In Information Science

Institution: Kenya Methodist University question papers

Exam Year:2016



KENYA METHODIST UNIVERSITY
FACULTY OF COMPUTING AND INFORMATICS
END OF SEMESTER EXAMINATION FOR MASTER IN INFORMATION SCIENCE, AUGUST, 2016
UNIT CODE: NTWG 633
UNIT TITLE: NETWORKING PROTOCOLS AND DESIGN

TIME: 3 HOURS

INSTRUCTIONS
Answer ALL Questions in section A and any other THREE questions in section B.

Question One

Distinguish between IPv4 and IPv6 [4 marks]
Describe the three categories of service offered by ISA. [6 marks]
What are the strengths and challenges of limiting reassembly to the endpoint as compared to allowing en route reassembly? [8 marks]
Explain the function of the three flags in the IPv4 header. [7 marks]

Question Two

What is meant by per-hop behavior? [2 marks]
List and briefly explain the three main functions of BGP. [6 marks]
What is the purpose of a DS code point? [2 marks]
List and briefly explain the five main functions of DS traffic conditioning. [15 marks]

Question Three

What addressing elements are needed to specify a target transport service (TS) user? [5 marks]
Describe four strategies by which a sending TS user can learn the address of a receiving TS user. [8 marks]
Explain the use of multiplexing in the context of a transport protocol. [6 marks]
Briefly describe the credit scheme used by TCP for flow control. [6 marks]

Question Four

What is an autonomous system? [3 marks]
Discuss the functioning of interior router protocol and an exterior router protocol. [10 marks]
Compare the three main approaches to routing. [12 marks]

Question Five

List and briefly explain the functions that are required for multicasting. [6 marks]
Explain the practical applications of multicasting. [6 marks]
Summarize the differences among unicast, multicast, and broadcast addresses. [9 marks]
What operations are performed by IGMP? [4 marks]




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