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CompTia IT Fundamentals Exam Guide Questions and Answers 100 % Correct ( 2026/2027 Update)
CompTia IT Fundamentals Exam Guide
Questions and Answers 100 %
Correct ( 2026/2027 Update)
Q: Mainframe
Answer:
large computer that might serve a large organization. It is used to process and store information
for many users at once.
Q: Motherboard
Answer:
is the personal computer component that acts as the backbone for the entire computer system.
Q: CPU
Answer:
computer chip where most of the computing calculations take place
Q: Power supply
Answer:
internal computer component that converts line voltage AC power from an electrical outlet to the
low-voltage direct current (DC) power needed by system components
Q: RAM
Answer:
type of computer memory that can be accessed randomly; that is, any byte of memory can be
accessed without touching the preceding bytes. volatile memory.
Q: Byte
Answer:
One character (a letter, number, space, or punctuation mark). consists of 8 bits.
Q: Kilobyte (KB)
Answer:
1,024 bytes or 8,192 bits is one
Q: Megabyte (MB, Meg, or M)
Answer:
1,048,576 bytes or 1,024 KB is one
Q: Gigabyte (GB)
Answer:
1,073,741,824 bytes or 1,024 MB is one
Q: Terabyte (TB)
Answer:
1,099,511,627,776 bytes or 1,024 GB is one
Q: Dual in-line memory modules (DIMMs)
Answer:
found in many systems, and they have a 64-bit data path. Generally have 16 or 32 chips per
module.
Q: Small outline dual in-line memory modules
Answer:
are most often seen in laptops, small networking devices (such as routers), and PCs with smaller
system boards. They have either 32- or 64-bit data paths. Half the size of DIMM
Q: hard drive
Answer:
generally non-removable disks. Almost all computers use these to store data. Store data digitally
on circular platters.
Storage capacity of hard disk drives is expressed in gigabytes (GBs) and terabytes (TBs)
Q: Solid State Drive
Answer:
uses non-volatile memory to emulate mechanical storage devices.
USB devices that are commonly known as jump drives or thumb drives; flash memory cards; and
secure digital
Q: Optical drive
Answer:
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