ITFundamentals Basic review

What is the main function of the CPU in a computer?

• To store data permanently

• To perform calculations and execute instructions

• To display graphics

• To manage network connections

Answer explanation

The main function of the CPU in a computer is to perform calculations and execute instructions.

Which of the following is an example of an operating system?

• Microsoft Word

• Google Chrome

• Windows 10

• Adobe Photoshop

Answer explanation

Windows 10 is an example of an operating system, as it is a widely used OS for personal computers.

What is the purpose of RAM in a computer?

• To store data permanently

• To cool down the computer components

• To process graphics

• To temporarily store data that is being used by the CPU

Answer explanation

RAM is used to temporarily store data that is being used by the CPU, allowing for quick access and processing.

Which of the following is NOT a type of software application?

• Spreadsheet

• Operating System

• Database

• Word Processor

Answer explanation

The correct choice is 'Operating System' as it is not a type of software application, unlike Spreadsheet, Database, and Word Processor.

What does the term "network" refer to in computing?

• A collection of computers that are programmed to follow a set of instructions

• A single computer that provides resources to other computers

• A collection of computers and devices connected together

• The main computer that controls all other computers in a system

Answer explanation

The term 'network' in computing refers to a collection of computers and devices connected together, allowing them to communicate and share resources.

Which of the following is a common method to protect your computer from viruses?

• Installing an operating system update

• Using a strong password

• Installing antivirus software

• Unplugging the computer from the network

Answer explanation

Installing antivirus software is a common method to protect your computer from viruses.

What is the primary function of a firewall in network security?

• To detect and remove viruses

• To manage the computer's operating system

• To block unauthorized access to a network

• To increase the speed of the network

Answer explanation

The primary function of a firewall in network security is to block unauthorized access to a network, ensuring that only authorized users and traffic can pass through.

Which of the following storage devices is considered non-volatile?

• RAM

• Hard Disk Drive (HDD)

• CPU Cache

• Registers

Answer explanation

The correct choice is Hard Disk Drive (HDD) because it is a non-volatile storage device, meaning it retains data even when powered off.

What is the main difference between software and hardware?

• Software can be physically touched, whereas hardware cannot

• Hardware can be downloaded, whereas software cannot

• Software is the physical components of a computer, whereas hardware is not

• Hardware is the physical components of a computer, whereas software is not

Answer explanation

Hardware refers to the physical components of a computer, while software is the programs and applications that run on the hardware.

Which of the following is a function of an operating system?

• To create spreadsheets

• To manage the computer's hardware and software resources

• To design graphics

• To connect computers within a network

Answer explanation

The correct function of an operating system is to manage the computer's hardware and software resources.