Networking
This device connects multiple computers within a local area network and forwards data to the correct destination based on MAC addresses.
What is a network switch
This file system is the default for most modern Windows operating systems and supports features like file compression and encryption.
What is NTFS (New Technology File System)?
These two major operating systems dominate the global smartphone market.
What are Android and iOS?
This essential firmware ensures that the motherboard can properly recognize and use installed hardware components.
What is the BIOS/UEFI?
A computer does not turn on, and there are no LED lights or fan movement. A technician should first check this external component before replacing the power supply unit.
What is the power cable or wall outlet?
This version of the Internet Protocol uses 128-bit addresses and was created to replace IPv4.
What is IPV6
This Windows recovery tool allows you to revert your system to a previous working state without affecting personal files.
What is System Restore
This feature, often found in mobile operating systems, allows users to remotely erase their device if it is lost or stolen.
What is Remote Wipe?
When installing memory modules, a technician should check for this type of motherboard feature that allows improved performance by enabling multiple channels of data transfer.
What is dual-channel or quad-channel memory?
When a computer fails to boot, it often provides this type of diagnostic signal in the form of audible beeps, which can indicate hardware failures.
What is a beep code?
This wireless encryption standard was replaced due to security vulnerabilities and is no longer recommended for protecting Wi-Fi networks
What is WEP (Wired Equivalent Privacy)?
This command is used in the Windows Command Prompt to display the network configuration of a computer, including IP address details.
What is ipconfig
This technology allows mobile devices to make payments by tapping them against compatible point-of-sale terminals.
What is NFC (Near Field Communication)
This CPU characteristic determines the number of simultaneous processes a processor can execute by dividing workload across multiple units.
What are cores?
A user reports that their hard drive makes clicking noises and files are inaccessible. The technician suspects this issue, which often signals this failure.
What is a mechanical head or mechanical failure?
This command-line tool is used to test connectivity by sending packets to a specified IP address and waiting for a response.
What is Ping
This built-in Windows feature helps protect your computer by blocking unauthorized inbound and outbound network traffic.
What is Windows Firewall?
This type of attack occurs when a malicious individual sets up a fake Wi-Fi hotspot to steal user data.
What is Evil Twin
A computer randomly shuts down or reboots due to inadequate power supply. This electrical measurement, calculated by multiplying voltage by current, determines if the PSU is sufficient.
What is wattage?
A computer powers on, but nothing appears on the screen. The monitor light is illuminated. What should the technician check next?
What is the monitor connection / cable
This protocol uses port 443 and is responsible for securing website connections through encryption.
What is HTTPS (Hypertext Transfer Protocol Secure)?
This type of Windows installation allows users to upgrade from a previous version while keeping their files, settings, and applications intact.
What is an in-place upgrade?
This type of mobile display technology provides vibrant colors and deep contrast while consuming less power than traditional LCD screens.
What is OLED (Organic Light-Emitting Diode)
A technician replaces a CPU, but the stops booting a minute into the process. Before reinstalling the processor, they should check this component to ensure proper heat transfer and prevent overheating.
What is thermal paste?
A computer unexpectedly shuts down or throttles performance due to excessive heat buildup. A technician should inspect this cooling component to ensure proper airflow.
What is the CPU heatsink and fan (CPU cooler)?