DIT 106 DNF 105  INTERNET PROTOCOLS AND TECHNOLOGY.

UNIVERSITY EXAMINATIONS: 2015/2016
EXAMINATION FOR THE DIPLOMA IN BUSINESS/ INFORMATION
TECHNOLOGY/ NETWORK FORENSIC
DIT 106 DNF 105 INTERNET PROTOCOLS AND TECHNOLOGY
DATE: AUGUST 2016 TIME: 1½HOURS
INSTRUCTIONS: Answer Any THREE Questions.

QUESTION ONE
(a) Give the role of the following as found on the internet
i. Internet Backbone
ii. Modem
iii. Router
iv. Internet exchange point (IXP)
v. Server [5 Marks]
(b) Outline three functions performed by the TCP protocol to ensure reliable data transfer over the
Internet [6 Marks]
(c) The World Wide Web is the most popular Internet service
i. Name the client and server programs used with the www [2 Marks]
ii. Explain the operation of the HTTP protocol [4 Marks]
(d) With regard HTML
i. Give what the acronym HTML stands for [1 Mark]
ii. Give the function of the following tags
<title>, <b>, <body> and <p> [2 Marks]
QUESTION TWO
(a) E-mail is one of the oldest Internet service.
i. Define the term e-mail [1 Mark]
ii. Explain the term mailing list as used with e-mail [2 Marks]
iii. Discuss briefly the client protocol SMTP [3 Marks]
iv. Give the difference between POP3 and IMAP protocols [3 Marks]
v. Name the parts of an e-mail address. Use a valid example [2 Marks]
(b) Discuss the following social and legal issues affecting Internet users
i. Copyright infringement [3 Marks]
ii. Dissapearance of social barriers [3 Marks]
iii. Fraud [3 Marks]
QUESTION THREE
(a) Explain the operation of the ISDN (Intergrated services digital network) and DSL (Digital
Subscriber Line) internet connections [6 Marks]
(b) Give the full names of the following acronyms as used with Internet connections [4 Marks]
i. ADSL
ii. WiMax
iii. WiFi
iv. Gbps
(c) List and explain four uses of the Internet [4 Marks]
(d) Internet communication makes use of IP addresses and domain names
i. Give the difference between IP addresses and Domain names. [2 Marks]
ii. Explain how the IP addressing scheme works [4 Marks]
QUESTION FOUR
(a) Explain the role of Internet Servive Providers [2 Marks]
(b) Name and explain four factors to consider when choosing an ISP [8 Marks]
(c) Internet security involves keeping online information safe.
i. Define the terms Integrity and Availability as used in internet security [2 Marks]
ii. Explain how Internet users can protect their privacy when online [4 Marks]
iii. Explain how firewalls protect [4 Marks]
QUESTION FIVE
(a) No one owns the Internet. Explain the roles of the following Internet bodies [6 Marks]
i. Internet Society
ii. World Wide Web Consortium
iii. KeNIC (Kenya Network Information Center)
(b) Discuss the client-server architecture as used in Internet services [3 Marks]
(c) Internet services run on the client server model. Explain how this is so in the services below.
Give examples in each case [6 Marks]
i. File Transfer Protocol
ii. World Wide Web
iii. Newsgroups
(d) Expalin the use of the Internet services in Q5 above [3 mark]
(e) Give the full name for the following application protocols [2 Marks]
i. NNTP
ii. HTTP
iii. IRC
iv. SMTP

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