220-1201 & 220-1202
STUDY PREP QUESTIONS
AND CORRECT ANSWERS
GRDAED A+ 2025-2026
BIOS (Basic Input Output System) - ANS-firmware used to initialize hardware during
booting
UEFI (Unified Extensible Firmware Interface) - ANS-a modern firmware interface
replacing BIOS
POST (Power-On Self-Test) - ANS-a diagnostic testing sequence run by firmware
CMOS (Complementary Metal-Oxide-Semiconductor) - ANS-a chip storing BIOS settings
CPU (Central Processing Unit) - ANS-the main processor executing instructions in a
computer
RAM (Random Access Memory) - ANS-volatile memory used for temporary data storage
SSD (Solid State Drive) - ANS-a storage device with no moving parts and faster access
speeds
, HDD (Hard Disk Drive) - ANS-a storage device with spinning platters and magnetic
heads
GPU (Graphics Processing Unit) - ANS-a specialized processor for rendering graphics
PSU (Power Supply Unit) - ANS-converts electricity to usable power for computer
components
Motherboard - ANS-The main circuit board connecting all components in a computer
Chipset - ANS-A collection of integrated circuits managing data flow between CPU,
memory, and peripherals
SATA (Serial Advanced Technology Attachment) - ANS-an interface for connecting
storage devices
NVMe (Non-Volatile Memory Express) - ANS-a protocol for fast SSD communication via
PCIe
USB (Universal Serial Bus) - ANS-a standard interface for connecting peripherals
Ethernet - ANS-A networking technology for wired LAN connections
IP Address - ANS-A unique identifier assigned to a device in a network
Subnet Mask - ANS-A number defining the range of IP addresses in a network
Gateway - ANS-A device that connects different networks, typically a router
DHCP (Dynamic Host Configuration Protocol) - ANS-assigns IP addresses dynamically