Computer Networks

What is a computer network?

• a collection of files stored in a computer

• computers and devices connected to share resources

• a single computer performing multiple tasks

• a program for virus scanning

Which of the following is NOT a benefit of computer networking?

• file sharing

• resource sharing

• communications

• increased hardware cost

Which network covers the smallest geographical area?

• WAN

• LAN

• MAN

• Internet

A Wide Area Network (WAN) _________

• connects computers within a room

• covers an area of 10km

• connects networks across countries or globally

• is limited to a campus

Which topology has a central device like a hub or switch?

• Bus

• Star

• Ring

• Mesh

What is a topology in computer networking?

• a software for data transfer

• the physical layout of connections

• a type of IP address

• a form of malware

Which transmission medium uses glass or plastic strands?

• Coaxial cable

• Twisted pair

• Fiber-optic cable

• Infrared

Which of these is used for wireless transmission?

• Fiber-optic cable

• Microwave

• Coaxial cable

• UTP cable

The Internet is ________

• a single global computer

• a collection of isolated LANs

• a worldwide collection of interconnected networks

• a private business network

Which of the following is a service provided by the Internet?

• Ethernet

• Bluetooth

• WWW

• BIOS