CompTIA A+ 220-901 Exam Questions and
Answers 100% Pass
What device in the computer system does all the processing of information obtained from
various
input devices? - Answer✔CPU
What PC component is referred to as primary storage and loses its content when power is
removed? - Answer✔RAM
Where are the instructions to start the computer system stored? - Answer✔BIOS
What type of firmware supports the new Secure Boot option which guarantees the integrity of
the startup files? - Answer✔UEFI
Which CPU feature needs to be enabled in the BIOS and is designed to help thwart malware
attempts to corrupt the system files? - Answer✔No Execute Bit or Disable Execute Bit
What device is described as a mini computer in your pocket running a mobile operating
system? - Answer✔Smart phone
Which PC component provides data communications for all other internal and external
components? - Answer✔Motherboard
1
, ©JASONMcCONNELL 2025 ALL RIGHTS RESERVED
A data pathway in a computer system is referred to as what? - Answer✔Bus
Which component modifies AC voltage into DC voltage? - Answer✔Power supply
What are the three voltages provided by the power supply in most systems? - Answer✔3.3, 5,
12
How many pins are contained in the SATA data cable? - Answer✔7
How many devices are supported by the USB 3.0 standard? - Answer✔127
What is the voltage provided by the USB standard? - Answer✔5V
What type of port is traditionally used for mice and keyboards? - Answer✔PS/2
What is the cable limit for the USB 2.0 standard? - Answer✔5m
What is the cable length limitation for Ethernet network cables? - Answer✔100m
What category of UTP is most commonly used and provides the ability to achieve 1Gbps
transfer speeds? - Answer✔Cat5e
Which type of network cabling uses optical pulses of light instead of electrical signals? -
Answer✔Fiber optic
What is the primary protocol that is used on the internet and LANs today? - Answer✔TCP/IP
2