Gce Model Questions Vol1 2020 Computer Studies Question 7

Practice essay / theory question 7 from the 2020 Gce Model Questions Vol1 Computer Studies examination. This question covers Network topologies, LAN design, IPv4 subnetting, Network security .

Gce Model Questions Vol1 2020 Computer Studies Essay / Theory
Topics: Network topologies LAN design IPv4 subnetting Network security
Question 7 GCE_MODEL_QUESTIONS_VOL1 • 2020 • COMPUTER_STUDIES • essay

A small secondary school is planning to upgrade its computer network to support both administrative tasks and interactive learning in classrooms.

Question Parts

( a )
Identify three common LAN topologies and discuss one advantage and one disadvantage of each in the context of the school’s requirements.
( b )
The school intends to connect 30 computers in the computer lab, 20 computers in the library, and 10 computers in the staff room, all to a central server. Propose a suitable overall network topology (including the inter‑connection of the three locations) and justify why it is appropriate, considering factors such as scalability, fault tolerance and cable cost.
( c )
The network will use IPv4 addressing. The school has been allocated the address block 192.168.64.0/22. Allocate sub‑networks for the three locations (lab, library, staff room) ensuring each location has enough host addresses and leaves room for future expansion. Show the subnet address, subnet mask, range of usable host addresses and broadcast address for each sub‑network.
( d )
Explain two security measures that should be implemented at the network perimeter and two at the host level to protect the school’s network from common threats.

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About This Question

This is Gce Model Questions Vol1 2020 Computer Studies Question 7. It is one of the essay questions from the 2020 Gce Model Questions Vol1 Computer Studies examination.

The question covers Network topologies, LAN design, IPv4 subnetting, Network security .

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