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/
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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)
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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...
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