Correct Answer: Better resistance to electromagnetic interference
Explanation: Fiber optic cables use light signals, making them immune to electromagnetic interference, unlike copper cables that are susceptible to signal degradation.

Correct Answer: To isolate applications for testing and development
Explanation: Virtual machines allow users to run multiple operating systems or applications in isolated environments for testing or development without affecting the primary system.

Correct Answer: To improve network security by requiring multiple forms of verification
Explanation: Multi-factor authentication adds an extra layer of security by requiring more than one method of verification (e.g., password + SMS code).

Correct Answer: Ethernet
Explanation: Ethernet cables are used for wired network connections, providing reliable and fast data transfer between devices on a local network.

Correct Answer: Unusual system crashes and sudden shutdowns
Explanation: Overheating can cause a computer to shut down unexpectedly or crash to protect its components from damage.

Correct Answer: To process and execute instructions
Explanation: The CPU (Central Processing Unit) is the brain of the computer, responsible for executing instructions from programs and managing operations.

Correct Answer: Keyboard
Explanation: A keyboard is an input device used to enter data into a computer, whereas monitors, printers, and speakers are output devices.

Correct Answer: To provide backup power during power outages
Explanation: A UPS provides temporary battery power to devices during a power outage, preventing data loss and allowing the user to safely shut down systems.

Correct Answer: Operating system
Explanation: The operating system manages hardware resources, allows users to interact with the system, and provides a platform for running applications.

Correct Answer: Hard Disk Drive
Explanation: A Hard Disk Drive (HDD) uses rotating magnetic disks to read and write data, whereas Solid-State Drives (SSDs) use flash memory.

Correct Answer: Basic Input/Output System
Explanation: The BIOS is firmware stored on the motherboard, which is responsible for booting the computer and initializing hardware before the operating system loads.

Correct Answer: RAM is volatile and ROM is non-volatile
Explanation: RAM loses its contents when power is turned off, while ROM retains its data even when the power is off.

Correct Answer: Cloud storage
Explanation: Cloud storage provides an easy and secure way to back up data by storing it on remote servers accessible via the internet.

Correct Answer: To uniquely identify a device on a network
Explanation: IP addresses are used to identify devices on a network, ensuring data is sent to the correct destination.

Correct Answer: Wi-Fi adapter
Explanation: A Wi-Fi adapter allows a computer to connect to a wireless network, providing internet access without the need for a physical connection.

Correct Answer: Translates domain names into IP addresses
Explanation: DNS servers convert human-readable domain names (like www.example.com) into IP addresses that computers use to communicate with each other.

Correct Answer: Blocks unauthorized access while allowing legitimate traffic
Explanation: Firewalls are designed to monitor and filter incoming and outgoing network traffic based on predetermined security rules.

Correct Answer: Solid-State Drive
Explanation: An SSD is a type of data storage device that uses flash memory instead of mechanical components like in hard drives, resulting in faster data access.

Correct Answer: RAID 3
Explanation: RAID 3 is not a common configuration. The more typical RAID levels are RAID 0, 1, 5, and 10, which offer various configurations for data redundancy and speed.

Correct Answer: Enables communication between hardware and the operating system
Explanation: Device drivers are essential for hardware to communicate with the operating system, ensuring proper functionality of devices like printers, video cards, and keyboards.