For More Quiz Questions click here to download Global Quiz on Google PlayStore

NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JANUARY 2021 EXAMINATION

CIT 461 – Internet Architecture and Communication

Credit: 3 units

TIME ALLOWED: 2½ Hours

INSTRUCTION: Answer Question 1 and any other FOUR (4)

 

Questions 1.

a) What is Internet Technology? (2½ marks)

b) How is information transmitted through the internet? (2½Marks)

c) Write short notes on the following technologies used for providing Internet access stating three characteristics of each.

i) Broadband Internet Connection (2 Marks)

ii) Dial-Up Connection - 56K (1½ Marks)

iii) ISDN (Integrated Services Digital Network) (1½ Marks)

d) Write short notes the following three protocols used in data transmission in the internet (7 Marks)

e) List any 5 issues of concern with E business and an example of how the effect of these concerns can be mitigated. (7½ Marks)

 

2. a) What is WWW and its architecture? (3 Marks)

b) What are the components of Web architecture? (4 Marks)

c) How does dynamic host configuration protocol aid in network administration? (3 Marks)

d) What is the better way of sending data or information through the net? (2 Marks)

 

3. What do you understand by the following terms?

a) A Firewall (5 Marks)

b) DNS (7 Marks)

 

4.

a) Write short notes on three internetworking devices and state their location in the network architecture (8 Marks)

b) What are the three key parts to packet switching? (1 Marks)

c) i) What are Brouters? (2 Marks)

ii) What was the essence of developing Brouter? (1 Mark)

 

5. a) Briefly explain Data Encapsulation (3 Marks)

b i) What is VPNs? (2 Marks)

ii) Describe the two ways that VPN can be configured? (4 Marks)

c) i) What do you understand by the term tunnel? (2 Marks)

ii) The term Tunnel is also referred to as what? (1 Mark)

 

6. a) What is the use of encryption and decryption? (3 Marks)

b) Explain how it can be used to provide a secure e-business transaction system (4½ marks)

c) What is HTTPs? (2½ Marks) d) What port does it use? (2 Marks)


For More Quiz Questions click here to download Global Quiz on Google PlayStore


Select NOUN Past Questions & Answers by Faculties

Sciences

National Open University of Nigeria (NOUN) Faculty of Sciences Past Questions and Answers.

Education

National Open University of Nigeria (NOUN) Faculty of Education Past Questions and Answers.

Arts & Social Sciences

National Open University of Nigeria (NOUN) Faculty of Arts and Social Sciences Past Questions and Answers.

Law

National Open University of Nigeria (NOUN) Faculty of Law Past Questions and Answers.

Management Sciences

National Open University of Nigeria (NOUN) Faculty of Management Sciences Past Questions and Answers.

Health Sciences

National Open University of Nigeria (NOUN) Faculty of Health Sciences Past Questions and Answers.

Agriculture Sciences

National Open University of Nigeria (NOUN) Faculty of Agricultural Sciences Past Questions and Answers.

Select Project Topics & Materials by Categories

Accounting

Universities, Polytechnic's and Colleges of Education Accounting Project Topics and Materials.

Biology

Universities, Polytechnic's and Colleges of Education Biology Project Topics and Materials.

Business Education

Universities, Polytechnic's and Colleges of Education Business Education Project Topics and Materials.

Chemistry

Universities, Polytechnic's and Colleges of Education Chemistry Project Topics and Materials.

Computer Science

Universities, Polytechnic's and Colleges of Education Computer Science Project Topics and Materials.

Criminology & Security

Universities, Polytechnic's and Colleges of Education Criminology & Security Project Topics and Materials.

Economics

Universities, Polytechnic's and Colleges of Education Economics Project Topics and Materials.

Education

Universities, Polytechnic's and Colleges of Education Education Project Topics and Materials.

English/Linguistic

Universities, Polytechnic's and Colleges of Education English/Linguistic Project Topics and Materials.

Entrepreneurship

Universities, Polytechnic's and Colleges of Education Entrepreneurship Project Topics and Materials.

Environmental Science

Universities, Polytechnic's and Colleges of Education Environmental Science Project Topics and Materials.

Law

Universities, Polytechnic's and Colleges of Education Law Project Topics and Materials.

Marketing

Universities, Polytechnic's and Colleges of Education Marketing Project Topics and Materials.

Physics

Universities, Polytechnic's and Colleges of Education Physics Project Topics and Materials.

Political Science

Universities, Polytechnic's and Colleges of Education Political Science Project Topics and Materials.

Public Administration

Universities, Polytechnic's and Colleges of Education Public Administration Project Topics and Materials.

How to login to NOUN Elearn Portal

You can now use you matric number to login as your username and  password in a lowercase.

https://elearn.nouedu2.net/login/

Note that you are to change your passw...

Facebook posts