1.2.3 How data transfers over different types of network

What is a local area network (LAN)?

• A network that connects computers across a wide geographical distance.

• A network that is usually owned by a service provider and leased to an organisation.

• A network that connects computers within a short geographical distance, usually within a building or a group of buildings.

• A network that is used by organisations to communicate and share data between different cities or countries.

What is a wide area network (WAN)?

• A network that connects computers within a single building.

• A network that connects two or more local area networks across a short geographical distance.

• A network that connects two or more local area networks across a wide geographical distance.

• A network that is exclusively used within a single organisation and not shared with others.

Which of the following is a good example of a WAN?

• A network within a single office building.

• The Internet.

• A home Wi-Fi network.

• A Bluetooth connection between two devices.

Why might an organisation choose to lease a WAN from a service provider rather than building its own network infrastructure?

• Because it is less secure to lease from a service provider.

• Because building its own network infrastructure is less expensive.

• Because building its own network infrastructure is far too expensive.

• Because leased networks have a shorter range than privately built networks.

What is the main purpose of protocols in data transmission over a network?

• To define the physical structure of the network

• To ensure consistent functionality between client and server

• To provide encryption for data

• To increase the speed of data transfer

What is the benefit of using layers in network protocols?

• Layers allow for faster data transfer speeds

• Layers can be programmed individually without affecting others

• Layers provide physical connections between devices

• Layers are used to increase the bandwidth of the network

What is the Hypertext Transfer Protocol (HTTP) used for?

• Sending an email from one mail server to another

• Downloading an email to your computer

• Transmitting a file from a client to a server

• Viewing a website using a web browser

What does the Simple Mail Transfer Protocol (SMTP) facilitate?

• Viewing websites

• Sending an email from one mail server to another

• Downloading emails to your computer

• Transmitting files between clients and servers

What is the role of the Internet Message Access Protocol (IMAP)?

• Sending emails

• Viewing websites

• Downloading an email to your computer

• Transmitting files

What is the File Transfer Protocol (FTP) primarily used for?

• Sending emails

• Viewing websites

• Downloading emails

• Transmitting a file from a client to a server