What is data communications?

• The encryption of data for security.

• The storage of data in a single device.

• The transfer of data between two or more devices.

• The analysis of data patterns.

Which of the following is NOT a type of data?

• Text

• Hardware

• Audio

• Video

What does LAN stand for?

• Light Area Network

• Long Area Network

• Large Area Network

• Local Area Network

Which network type covers a city?

• LAN

• PAN

• WAN

• MAN

What is a star topology?

• All devices share one main cable.

• Every device connected to many others.

• All devices connected to a central hub.

• Devices connected in a circle.

Which cable type is commonly used in LANs?

• Fiber Optic Cable

• HDMI Cable

• Coaxial Cable

• Twisted Pair Cable

What does TCP stand for?

• Transfer Control Protocol

• Transmission Communication Protocol

• Transmission Control Protocol

• Transfer Communication Protocol

What is the primary purpose of encryption in data communications?

• To format data for display.

• To speed up data transfer.

• To protect data from unauthorized access.

• To compress data for storage.

Which of the following is a common threat to data security?

• Firewall

• Encryption

• Malware

• Authentication

What is the main advantage of a mesh topology?

• Low cost.

• Very reliable.

• Easy to manage.

• Simple to set up.