Hardware & Components
This type of RAM is volatile, must be constantly refreshed with electricity, and is used for primary system memory.
What is DRAM (or DDR SDRAM)?
The standard network topology where all individual computers connect directly to a single central hub or switch.
What is a star topology?
This protocol uses port 53 to translate human-readable domain names into numerical IP addresses.
What is DNS (Domain Name System)?
This specialized component inside an older laptop screen converts low-voltage DC power into high-voltage AC power for CCFL backlights.
What is an inverter?
This cross-platform utility is used to discover active hosts, find open ports, and map out devices across a network via command-line probing
What is Nmap?
A silver, coin-shaped battery on the motherboard that powers the chip holding the system's firmware settings.
What is the CMOS battery?
This technology hides a private IP address behind a single public IP address to allow internet access.
What is NAT (Network Address Translation)?
This TCP port is used to establish an unencrypted, insecure text-based remote terminal connection.
What is Port 23 (Telnet)?
This type of printer uses a ribbon coated with wax or resin and a heated print head to create long-lasting shipping labels or receipts.
What is a thermal printer?
This Linux command is used to display the full text contents of a file right inside the terminal screen or join files together.
What is cat?
This component prevents a CPU from overheating by drawing heat away using a metal block and often a fan.
What is a heatsink?
This type of network cable uses glass or plastic threads to transmit data as pulses of light over very long distances.
What is fiber-optic cable?
This protocol automatically assigns IP addresses, subnet masks, and default gateways to client devices when they boot up.
What is DHCP?
In an inkjet printer, this specific component moves back and forth to spray microscopic droplets of ink onto the page.
What is the print head?
This command-line tool traces and displays the exact router-by-router path a packet takes to reach a destination server across a network
What is tracert (or traceroute)?
The type of CPU socket architecture that uses pins built into the socket on the motherboard rather than on the processor.
What is LGA (Land Grid Array)?
This specific IP address block (169.254.0.0/16) is assigned automatically when a client cannot contact a DHCP server.
What is APIPA?
This encrypted terminal protocol replaces Telnet and operates securely over TCP port 22.
What is SSH (Secure Shell)?
This multi-step laser printing process stage uses a primary corona wire or roller to place a uniform negative charge on the photosensitive drum.
What is charging?
Entering this specific command into a Windows terminal runs an automated utility to verify and repair corrupted operating system files.
What is sfc /scannow?
This internal motherboard interface and thin cable type is used to connect modern mechanical hard drives and optical drives.
What is SATA?
This device connects multiple devices on a local network and forwards data packets specifically to the destination MAC address.
What is a network switch?
Operating on port 443, this protocol secures web traffic using SSL/TLS encryption.
What is HTTPS?
This mobile feature combines cellular, Wi-Fi, and GPS data to continuously track and identify the physical coordinates of a device.
What is geolocating (or GPS)?
This command-line utility is used to test local and remote network connectivity by sending ICMP echo requests.
What is ping?