ICT Networks and communications

What is the purpose of a hub in a network?

• To connect devices in a star topology

• To store data locally

• To manage network traffic

• To provide network security

Answer explanation

The purpose of a hub in a network is to connect devices in a star topology, where each device is connected directly to the hub. This allows for easy communication between devices.

What is the purpose of a router in a network?

• To store data locally

• To connect devices wirelessly

• To provide network security

• To manage network traffic

Answer explanation

The purpose of a router in a network is to manage network traffic, directing data packets between devices and ensuring efficient communication.

How do LANs differ from MANs?

• LANs cover larger geographic areas

• MANs are suitable for single buildings

• LANs are owned by single organizations

• MANs connect devices in a city

Answer explanation

LANs are owned by single organizations, distinguishing them from MANs which can connect devices in a city.

What is the main function of a switch in a network?

• To manage network traffic

• To store data locally

• To provide network security

• To connect devices wirelessly

Answer explanation

The main function of a switch in a network is to manage network traffic, directing data packets to their intended destination devices efficiently.

What is an example of a LAN?

• A home network

• A global network

• The Internet

• A city-wide network

Answer explanation

A LAN is a local area network, and a home network is an example of a LAN as it connects devices within a single residence or small area.

How does a WAN differ from a LAN?

• LAN connects multiple countries

• WAN is suitable for single buildings

• LAN is operated by telecommunications companies

• WAN covers a larger geographic area

Answer explanation

WAN covers a larger geographic area

What is the purpose of a network in ICT?

• To control network devices

• To operate servers only

• To store data locally

• To connect devices and enable communication

Answer explanation

The purpose of a network in ICT is to connect devices and enable communication, allowing data transfer and resource sharing among connected devices.

Which protocol governs how data is transmitted securely and reliably?

• HTTP

• Ethernet

• TCP

• IP

Answer explanation

TCP governs how data is transmitted securely and reliably by establishing a connection-oriented communication between devices.

What is the purpose of communication protocols in a network?

• To physically connect devices

• To ensure secure and reliable data transmission

• To store data locally

• To manage network traffic

Answer explanation

Communication protocols in a network are used to ensure secure and reliable data transmission, making it the correct choice.

How do LANs differ from WANs?

• WANs connect devices in a single building

• LANs are suitable for long-distance communication

• WANs are owned by single organizations

• LANs cover larger geographic areas

Answer explanation

WANs are owned by single organizations, unlike LANs which are typically used within a single building or small area.