Hardware
What is the primary function of a power supply unit (PSU)?
Converts AC power to DC power for computer components
What does IP stand for?
Internet Protocol
What is the primary function of an operating system?
Manages hardware and software resources
What is the purpose of a firewall?
Blocks unauthorized access to a network
What is the first step in troubleshooting a computer issue?
Identify the problem
What type of memory is volatile and used for temporary data storage?
RAM (Random Access Memory)
What is the function of a router?
Directs network traffic between different networks
What are the three most common operating systems?
Windows, macOS, Linux
What is the best way to create a strong password?
Use a mix of letters, numbers, and symbols
What tool is used to test a power supply unit (PSU)?
Multimeter
What is the purpose of a CPU?
Executes instructions and processes data
What is the difference between IPv4 and IPv6?
IPv6 has a larger address space and improved security
What is the purpose of a device driver?
Allows the OS to communicate with hardware
What does MFA stand for?
Multi-Factor Authentication
What does "Safe Mode" do in Windows?
Starts Windows with minimal drivers for troubleshooting
What does SSD stand for, and how does it differ from HDD?
Solid State Drive, faster and no moving parts
What is the purpose of a subnet mask?
Defines network and host portions of an IP address
What command is used to check network connectivity in Windows?
ping
What is phishing?
A type of cyberattack that tricks users into providing sensitive information
What is the purpose of the chkdsk command?
Checks and repairs file system errors
What connector type is commonly used for modern internal hard drives?
SATA (Serial ATA)
What does DHCP stand for, and what is its function?
Dynamic Host Configuration Protocol, assigns IP addresses automatically
What does NTFS stand for, and where is it used?
New Technology File System, used in Windows
What is the function of an antivirus program?
Detects and removes malware
What does "blue screen of death" (BSOD) indicate?
A critical system error in Windows
What is the function of a motherboard?
Connects all computer components and allows communication
What are the standard wireless networking frequency bands?
2.4 GHz and 5 GHz
What is the Windows registry?
A database storing OS and application settings
What does encryption do?
Secures data by converting it into unreadable code
What does msconfig do in Windows?
Configures system startup options
What is the most common type of expansion slot found on modern motherboards?
PCIe (Peripheral Component Interconnect Express)
What is an SSID?
Service Set Identifier, the name of a Wi-Fi network
What is the Linux command to list directory contents?
ls
What is social engineering in cybersecurity?
Manipulating individuals to gain unauthorized access
What is the primary purpose of a loopback plug?
Tests network interfaces
What does BIOS stand for?
Basic Input/Output System
What is the function of a MAC address?
Unique identifier assigned to network interfaces
What is the purpose of a virtual machine?
Runs multiple OS instances on a single physical machine
What does a zero-trust security model mean?
No entity is automatically trusted inside or outside the network
What is the function of Event Viewer in Windows?
Displays system logs and error reports
What is the purpose of thermal paste?
Improves heat transfer between CPU and heatsink
What does VPN stand for, and what is its purpose?
Virtual Private Network, secures connections over the internet
What does UEFI stand for?
Unified Extensible Firmware Interface
What is the role of a RADIUS server?
Remote Authentication Dial-In User Service for authentication and authorization
What is a "bad sector" on a hard drive?
A portion of the drive that is damaged and unreadable
What is the maximum number of devices that can be connected to a single USB hub?
127
What is the primary difference between TCP and UDP?
TCP is connection-oriented, UDP is connectionless
What is the primary benefit of using an SSD over an HDD?
Faster performance and reliability
What is the difference between symmetric and asymmetric encryption?
Symmetric uses one key, asymmetric uses a key pair
What is the primary cause of overheating in a computer?
Poor airflow or dust buildup