Unit 3 - L2 - LAN 2

Define what is meant by the word protocol.

• A set of rules governing data communication

• A type of network cable

• A computer program

• A hardware device

Answer explanation

The correct choice, 'A set of rules governing data communication', defines a protocol as it outlines the standards and procedures for data exchange between devices, ensuring effective communication.

Give one reason why a cinema might choose to use a star topology.

• It is the cheapest option

• It allows for easy addition of new devices

• It requires no cables

• It is the fastest topology

Answer explanation

A cinema might choose a star topology because it allows for easy addition of new devices. This flexibility is beneficial for accommodating new technology or equipment without disrupting the existing network.

What is one alternative type of transmission media to Ethernet cable?

• Fiber optic cable

• Wooden cable

• Plastic wire

• Rubber tubing

Answer explanation

Fiber optic cable is a viable alternative to Ethernet cable, as it uses light to transmit data, offering higher speeds and greater bandwidth over longer distances compared to traditional copper cables.

One reason why Ethernet cable might be chosen over other transmission media is because it is widely compatible.

• It is more expensive

• It is less reliable

• It is widely compatible

• It is slower

Answer explanation

Ethernet cables are widely compatible with various devices and networks, making them a preferred choice for many users. This compatibility ensures seamless connectivity, unlike other transmission media that may have limitations.

What does a MAC address do in a network?

• Identifies a device uniquely

• Speeds up the network

• Encrypts data

• Provides internet access

Answer explanation

A MAC address uniquely identifies a device on a network, allowing for proper communication between devices. It does not speed up the network, encrypt data, or provide internet access.

How does a network switch use a MAC address?

• To route data to the correct device

• To increase network speed

• To provide power to devices

• To connect to the internet

Answer explanation

A network switch uses a MAC address to route data to the correct device on the network. It identifies devices uniquely, ensuring that data packets reach their intended destination.

What is a key advantage of using a star topology?

• Centralized management

• No need for a central hub

• Uses less cable

• All devices are directly connected

Answer explanation

A key advantage of using a star topology is centralized management, which allows for easier monitoring and control of the network. This setup simplifies troubleshooting and enhances network performance.

Which protocol is mentioned in the document for the cinema's network?

• TCP/IP

• Ethernet

• HTTP

• FTP

Answer explanation

The document specifically mentions Ethernet as the protocol used for the cinema's network, which is a standard for local area networking. TCP/IP, HTTP, and FTP are different protocols not specified in this context.

What is the main function of a network protocol?

• To provide internet access

• To define rules for data exchange

• To store data

• To power devices

Answer explanation

The main function of a network protocol is to define rules for data exchange, ensuring that devices can communicate effectively. This is essential for the proper functioning of networks.

Why might a cinema use Ethernet cables for their network?

• They are wireless

• They are cost-effective

• They are decorative

• They are outdated

Answer explanation

Ethernet cables are cost-effective for cinemas as they provide reliable and high-speed connections at a lower price compared to wireless options. This makes them a practical choice for managing network demands.