1. What is the primary function of a CPU in a computer system? a) To provide temporary storage b) To manage the computer's operating system c) To execute instructions from software applications d) To supply power to the computer Answer: c) To execute instructions from software applications Rationale: The CPU (Central Processing Unit) is the core of a computer's hardware, responsible for executing instructions from software applications, making it the 'brain' of the computer. 2. Which of the following is an example of volatile memory? a) SSD b) HDD c) RAM d) ROM Answer: c) RAM Rationale: Volatile memory is computer storage that only maintains its data while the device is powered. RAM (Random Access Memory) is a type of volatile memory used for temporary storage while a computer is running. 3. What is the primary purpose of RAID technology in a computer system? a) To improve sound quality b) To enhance graphics rendering c) To increase storage reliability and performance d) To optimize power consumption Answer: c) To increase storage reliability and performance Rationale: RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both. 4. Which of the following best describes 'phishing'? a) A type of malware that encrypts files and demands payment b) An attack that floods a network with excessive traffic c) A technique used to obtain sensitive information by disguising as a trustworthy entit