The main purpose of an Operating System is to —

• Design websites

• Manage hardware and software

• Process data

• Backup files

CPU stands for —

• Central Process Unit

• Central Processing Unit

• Control Processing Unit

• Computer Processing Unit

Which of the following is an output device?

• Mouse

• Microphone

• Monitor

• Joystick

RAM is used for —

• Long-term storage

• Temporary data access

• Installing OS

• Data backup

Which of the following is a network device?

• Hub

• Mouse

• Printer

• Keyboard

The TCP/IP model has how many layers?

• 4

• 5

• 6

• 7

A star topology uses which central device?

• Hub or switch

• Router

• Bridge

• Gateway

Which protocol is used to send emails?

• SMTP

• HTTP

• FTP

• DNS

Device drivers are used to —

• Connect devices with OS

• Connect Internet

• Manage user accounts

• Increase storage

CMOS battery is used to —

• Power up CPU

• Store BIOS settings

• Run RAM

• Charge motherboard