Lesson 3 Part 3 Quiz

Why is fiber optic cable better than copper cable?

• It is cheaper

• It is faster and more reliable

• It is easier to install

• It uses electricity

Which transmission medium is used for short-range wireless communication and requires a direct line of sight?

• Radio waves

• Infrared

• Fiber optics

• Coaxial cable

What is the role of a satellite in communication?

• It stores data

• It relays signals

• It boosts Wi-Fi

• It connects LANs

Which network device connects multiple devices within a LAN and directs data only to the intended recipient?

• Hub

• Switch

• Router

• Modem

What is the primary role of a router in a network?

• To store files

• To forward data

• To boost Wi-Fi

• To process applications

Which network device converts digital signals into analog signals and vice versa?

• Router

• Switch

• Modem

• Gateway

What is the main function of a Network Operating System (NOS)?

• To display graphics

• To manage network resources

• To store data

• To run applications

Which protocol is used for sending emails?

• FTP

• SMTP

• HTTP

• IMAP

What is the purpose of TCP/IP?

• To browse websites

• To transfer files

• To send data reliably

• To secure networks

What does an operating system do?

• Installs apps

• Manages hardware and software

• Stores files

• Connects to Wi-Fi