Take this Quiz: GCSE Computer Science: Networks and the Internet | Zestly

Question 1

A firm called Apex Solutions has a network connecting computers within a single office building. They also have a separate network connecting their London branch to their Manchester branch. Which statement correctly identifies these networks and the primary difference between them?

Accepted Answer

The office network is a LAN and the branch network is a WAN because they differ in geographic scope and the ownership of the infrastructure.

Answer

Both are LANs because they both use Ethernet cables to connect the devices to the network infrastructure.

Answer

The office network is a WAN and the branch network is a LAN because the office network is faster than the branch network.

Answer

The office network is a WAN and the branch network is a LAN because they differ in the number of computers connected.

Question 2

A school uses a central server to manage user accounts, store files, and perform daily backups. A group of students in a club share files directly between their own laptops without a central server. Which networking models are these?

Accepted Answer

The school uses client-server and the students use peer-to-peer, where the students lose the benefit of central management.

Answer

Both are client-server models because they both involve multiple computers connected to each other.

Answer

Both are peer-to-peer models because they both allow for the sharing of files between different devices.

Answer

The school uses peer-to-peer and the students use client-server, which is more secure for the school.

Question 3

In a star topology network, a technician notices that when one specific cable fails, only the computer at the end of that cable loses its connection. However, when the central switch fails, all computers lose their connection. What does this indicate about the star topology?

Accepted Answer

It shows that the central switch is a single point of failure, even though individual cable failures are isolated.

Answer

It shows that the star topology is less reliable than a bus topology because of the central switch.

Answer

It shows that the star topology has no single point of failure because the computers are connected independently.

Answer

It shows that the central switch is not necessary for the network to function correctly.

Question 4

Why is data transmitted across the internet in small packets rather than as one continuous stream?

Answer

Packets are transmitted much faster than a continuous stream because they can be sent in any order without needing reassembly.

Answer

Sending data as one continuous stream would require more bandwidth than the network can handle, regardless of the data size.

Answer

Packets are used because they automatically encrypt the data, making it more secure than a continuous stream.

Answer

Packets allow the network to route data around congestion and enable the resending of only the lost parts if an error occurs.

Question 5

A laptop is moved from a home network to a coffee shop network. Its hardware address remains the same, but it is assigned a different address to communicate on the new network. Which addresses are these?

Answer

The hardware address is the IP address and the network address is the MAC address.

Answer

Both are IP addresses, as the laptop needs a new one for every network it joins.

Answer

The hardware address is the MAC address and the network address is the IP address.

Answer

Both are MAC addresses, as the laptop needs a unique identifier for every network connection.