Principles of Computer Science

Which of the following are reasons for connecting computers in a network?

• To share resources and information

• To improve computational speed

• To reduce physical space

• To share resources and enhance communication

Describe one way a local area network (LAN) is different from a wide area network (WAN).

A network has a speed of 17.08 megabits per second. Identify the equivalent speed in bits per second.

• 17,080

• 17,080,000

• 17,080,000,000

• 17,080,000,000,000

Define the term 'latency'.

Each device on a network has a unique identifier that is used when sending or receiving packets of data. What is the name of this unique identifier?

• IP Address

• MAC Address

• Device Name

• Serial Number

Identify the item included between the header and the footer in a data packet.

• Data being sent

• Destination address

• Packet number

• Public key

Describe how a firewall protects a local area network (LAN).

• By encrypting data sent over the network

• By physically securing network cables

• By monitoring and controlling incoming and outgoing network traffic based on predetermined security rules

• By increasing the network's bandwidth

State the name of an email protocol.

Explain one disadvantage of using a star network topology.

State the purpose of a mnemonic.