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NATIONAL OPEN UNIVERSITY OF NIGERIA
UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JUNE/JULY 2013 EXAMINATION
COURSE CODE: CIT461
COURSE TITLE: Internet Architecture and Communications
TIME ALLOWED: 3 Hours
INSTRUCTIONS: Answer any Five (5) Questions
Q1.a Write short notes on:
(i) HTTP
(ii) TCP/IP 14 marks
Q2.a What is a web browser? 4 marks
b. List any features of web browsers. 5 marks
c. State any five interface of web browsers. 5 marks
Q3. Write short notes on any four technologies used for providing Internet access stating one characteristic of each 14 marks
Q4. Describe virtual private networks and write short notes on any two tunneling protocols 14 marks
Q5. Outline, with seven points, a general architectural framework for the next generation of the Internet 14 marks
Q6.a Define email and list its component parts 4 marks
b. List any six email programs and discuss any four strategies for securing email accounts 10 marks
Q7. Describe the 3 different types of web hosting services and state any three characteristics of each type. 8 marks
