CompTIA A+® Certification Study Guide
32-bit - - ✔✔In reference to the Windows operating systems, one that can utilize up to 4
GB of address space.
64-bit - - ✔✔In reference to the Windows operating systems, one that
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CompTIA A+® Certification Study Guide
32-bit - - ✔✔In reference to the Windows operating systems, one that can utilize up to 4
GB of address space.
64-bit - - ✔✔In reference to the Windows operating systems, one that can utilize more
than 4 GB of address space. Depending on the version, 64-bit Windows can address a
maximum of from 8 to 192 GB.
802.11a - - ✔✔A wireless network standard that uses the 5 GHz band.
802.11b - - ✔✔A wireless network standard that uses the 2.4 GHz band at a speed of
up to 10 Mbps.
802.11g - - ✔✔A wireless network standard that uses the 2.4 GHz band at a speed of
up to 54 Mbps. It is downward-compatible with 802.11b.
802.11n - - ✔✔A wireless network standard that defines speeds of up to 600 Mbps. It is
downward-compatible with 802.11a, 802.11b, and 802.11g.
8-bit high color - - ✔✔Describes the VGA mode color setting that, although it can
produce around 16 million different colors, can only display up to 256 different colors at
a time.
AC adapter - - ✔✔A type of power supply that converts AC power to voltages needed
for a device. AC adapters are generally used for portable PC systems and other
devices.
accelerated graphics port - - ✔✔A local bus designed for video only, it provides a direct
link between the processor and the video card, giving the video card direct access to
main memory.
access control - - ✔✔Managing access to resources. _______ to computers and
network resources involves authentication and authorization.
access control entry - - ✔✔In an access control list, a record containing just one user or
group account name and the permissions assigned to that account.
access control list - - ✔✔A table on each file and folder in the NTFS file system that
contains one or more access control entries.
accessory bay - - ✔✔In a laptop, a compartment that holds a single media device that
is switchable with another.ACT - - ✔✔The "activity" status light on a NIC that indicates data is being transmitted.
activation - - ✔✔A method used by several software manufacturers to combat software
piracy.
active communication - - ✔✔A set of behaviors including active listening and active
speaking that shows you are fully engaged in the conversation and encourages the
other person to also communicate in a positive manner.
active listening - - ✔✔A set of skills, behaviors, and attitudes to use when listening to
another person.
active matrix display - - ✔✔An LCD technology based on thin-film transistor (TFT)
technology. It has a transistor at every pixel, which enables much quicker display
changes
active partition - - ✔✔A primary partition that is marked for use by the system during
startup. Windows operating systems can only be booted from this
active speaking - - ✔✔The appropriate responses that you make during a conversation.
ad hoc mode - - ✔✔In a Wi-Fi network, the networking mode that allows peer-to-peer
communications without the use of a centralized wireless hub, called a wireless access
point (WAP).
adapter card - - ✔✔A printed circuit card that you add to the motherboard to enhance
functionality. Also called an expansion card. Video adapters and network interface cards
(NICs) are examples of this
address bus - - ✔✔A group of wires used to identify addresses in main system memory
in a computer. The number of wires in an address bus is called the width of the bus and
determines the number of unique memory locations that can be addressed using binary
math with the two raised to the power of the number of wires in the bus. A 32-bit bus
can address up to 4 GB of memory, whereas a 36-bit address bus can address up to 64
GB of memory.
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