TMA 10

Q1. Describe the meaning of the term “OSI model”.

Q2. Describe the meaning of the term “kernel”.

Q3. In the OSI model, what layers are in the lower layer?

Q4. In the OSI model, what layers are in the upper layers?

Q5. In the OSI model, what layer deals with the sending and receiving of data?

Q6. In the OSI model, what layer deals with error checking?

Q7. In the OSI model, what layer deals with the routing of data?

Q8. In the OSI model, what layer allows the machines with different data t o understand each other?

Q9. Identify two economic factors in relation to networks.

Q10. Identify two technical factors in relation to networks.

Extension Question.

Banks R Us has 20 branches located throughout Scotland and a head office in Glasgow. Each branch has a local area network (LAN), and the branches and head office are connected by a wide area network (WAN).

a) Explain how the increased use of computer networks in the banking industry has brought benefits to:

i) customers

ii) staff.

b) As a result of increased use of networking, the bank has long-term plans to close many of its branches. Customers complain that they will miss the opportunity to talk “face to face” with bank staff.

i) Describe a technological solution to this difficulty.

ii) Describe the specific hardware and software each customer would require (in addition to a computer) to implement your solution.