CompTIA A+ 220-901
What device in the computer system does all the processing of information obtained
from various
input devices? - ✔✔CPU
What PC component is referred to as primary storage and loses its content when
...
CompTIA A+ 220-901
What device in the computer system does all the processing of information obtained
from various
input devices? - ✔✔CPU
What PC component is referred to as primary storage and loses its content when power
is removed? - ✔✔RAM
Where are the instructions to start the computer system stored? - ✔✔BIOS
What type of firmware supports the new Secure Boot option which guarantees the
integrity of the startup files? - ✔✔UEFI
Which CPU feature needs to be enabled in the BIOS and is designed to help thwart
malware attempts to corrupt the system files? - ✔✔No Execute Bit or Disable Execute
Bit
What device is described as a mini computer in your pocket running a mobile operating
system? - ✔✔Smart phone
Which PC component provides data communications for all other internal and external
components? - ✔✔Motherboard
A data pathway in a computer system is referred to as what? - ✔✔Bus
Which component modifies AC voltage into DC voltage? - ✔✔Power supply
What are the three voltages provided by the power supply in most systems? - ✔✔3.3, 5,
12
How many pins are contained in the SATA data cable? - ✔✔7
How many devices are supported by the USB 3.0 standard? - ✔✔127
What is the voltage provided by the USB standard? - ✔✔5V
What type of port is traditionally used for mice and keyboards? - ✔✔PS/2
What is the cable limit for the USB 2.0 standard? - ✔✔5m
What is the cable length limitation for Ethernet network cables? - ✔✔100m
What category of UTP is most commonly used and provides the ability to achieve
1Gbps transfer speeds? - ✔✔Cat5e
Which type of network cabling uses optical pulses of light instead of electrical signals? -
✔✔Fiber optic
What is the primary protocol that is used on the internet and LANs today? - ✔✔TCP/IP
Which network service is responsible for resolving user friendly names to numerical IP
addresses? - ✔✔DNS or Domain Name System
Which network service is used to assign IP addresses to clients that are attempting to
connect to the network? - ✔✔DHCP
Which laptop component is the most likely to need replacing? - ✔✔Battery
What can be used to ensure long battery life in a portable computer? - ✔✔Power
options
What are the small areas used to store data entering and leaving the CPU called? -
✔✔Registers
The primary internal component within a CPU that performs the calculations is known
as what? - ✔✔ALU or Arithmetic Logic Unit
Modern CPUs typically have multiple ___________ that really allow the CPU to act as
more than a single CPU. - ✔✔Cores
The most common architecture for CPUs today is __________________? - ✔✔X86 or
32-bit
What is the latest standard for RAM that operates at bandwidths up to 12,800 Mbps? -
✔✔DDR3-1600 or PC 12800
What is the data path for modern memory which allows modules to be installed
individually and provide 8 bytes of data transfer simultaneously? - ✔✔64-bit
Which component is most likely to use a DVI-D connection on the PC? - ✔✔Monitor or
video card
Which technology is often used to send output information to a high definition television
as opposed to a monitor? - ✔✔HDMI
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