Y8 - Autumn 2 L3 Topologies

What do LANs use to connect devices?

• Cables and radio waves

• Satellites

• Fiber optics only

• Infrared signals

Answer explanation

LANs connect devices using cables (like Ethernet) and radio waves (for Wi-Fi). This combination allows for both wired and wireless connections, making 'Cables and radio waves' the correct choice.

What does NIC stand for?

• Network Interface Card

• Network Internal Connection

• Network Internet Card

• Network Integrated Circuit

Answer explanation

NIC stands for Network Interface Card, which is a hardware component that connects a computer to a network. The other options do not accurately describe this function.

In which topology does a failure in the central hub affect the entire network?

• Star

• Ring

• Bus

• Mesh

Answer explanation

In a star topology, all devices are connected to a central hub. If the hub fails, communication between all devices is disrupted, affecting the entire network. This is why the correct answer is 'Star'.

What type of devices can be connected in a bus network?

• Only computers

• Only printers

• Computers and printers

• Only servers

Answer explanation

In a bus network, multiple devices can be connected, including both computers and printers. This allows for efficient communication and resource sharing among these devices.

What is the main advantage of using a bus network?

• High speed data transfer

• Simple and easy to set up

• Secure data transmission

• Unlimited number of devices

Answer explanation

The main advantage of a bus network is that it is simple and easy to set up. This design allows for straightforward connections between devices, making installation and configuration less complex compared to other network types.

What is a common use for bus networks?

• Large corporate networks

• Small home or office networks

• Wireless communication

• Satellite communication

Answer explanation

Bus networks are commonly used in small home or office networks due to their simplicity and cost-effectiveness. They allow multiple devices to connect using a single communication line, making them ideal for smaller setups.

Which of the following is a benefit of a bus network?

• Easy to add new devices

• Very fast data transfer

• Highly secure

• Unlimited distance

Answer explanation

A bus network allows for easy addition of new devices since they can be connected to the main cable without disrupting the network. This flexibility is a key advantage, unlike the other options which do not accurately describe bus networks.

What happens to data collisions in a bus network?

• They can occur frequently

• They never occur

• They are impossible

• They are always resolved

Answer explanation

In a bus network, multiple devices share the same communication line, leading to potential data collisions. Therefore, the correct answer is that collisions can occur frequently as devices attempt to send data simultaneously.

What is the main advantage of a ring network?

• High speed

• Simple data management

• Easy to add new devices

• Equal access to resources

Answer explanation

The main advantage of a ring network is that it provides equal access to resources for all devices. Each device has the same opportunity to transmit data, reducing the chances of collisions and ensuring fair communication.

What happens if there is a cable failure in a ring network?

• Only the failed node is affected

• The whole network is affected

• The network becomes faster

• The network becomes more secure

Answer explanation

In a ring network, each node is connected to two others. If a cable fails, the connection is broken, affecting all nodes in the ring. Thus, the whole network is impacted, making the correct answer "The whole network is affected."