COMPTIA A+® CERTIFICATION STUDY GUIDE COMPLETE 2026-2027
EXAM PAPER- REVISION QUESTIONS & SOLUTIONS
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
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
,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.
Address Resolution Protocol
A protocol used to resolve an IP address to a MAC address.
Advanced Communications Riser
A riser card standard that AMD, 3Com, and others introduced in 2000 to supersede AMR. It uses
one PCI slot, provides accelerated audio and modem functions as well as networking, and
supports multiple Ethernet NICs.
Advanced Configuration and Power Interface
A power management standard that includes all the power states of APM, plus two more. It also
supports soft power.
Advanced Micro Devices
AMD manufactures CPUs and other products, and its chief rival is Intel Corporation.
Advanced Power Management
A power management standard, introduced by Intel in 1992, that defines four power-usage
operating levels.
Advanced Technology
A type of motherboard used in older PC systems; also refers to the 1984 IBM PC AT model.
, Advanced Technology Attachment
The former name of the Parallel AT Attachment (PATA) interface standard.
Advanced Technology eXtended
A type of motherboard and its variants most commonly used in recent PC systems.
adware
Software installed on a computer without permission that collects information about a user in
order to display targeted advertisements, in the form of either inline banners or pop-ups. Inline
banners are advertisements that run within the context of the current page, taking up screen
real estate.
alternating current
The delivery of electricity (as from a wall outlet) in which the flow of electrons reverses
periodically and has alternating positive and negative values.
amperes (amps)
A measurement of the volume of electrons, also called current. It is calculated with the formula
amps = watts / volts.
analog LCD display
An LCD display that uses a DB-15 connector, which means that it accepts analog signals that it
converts to digital.
analog modem
A modulator/demodulator device that allows computers to communicate with one another over
existing phone lines.
answer file
A file used during an unattended installation of Windows. It provides a script of responses to
the questions Setup asks so the user does not have to answer them manually.
antistatic mat
A mat that provides a path to ground for a static charge and is designed for the desktop or floor
of a workspace. One placed on the workbench reduces the risk of electrostatic discharge for
components placed on it, while one placed on the floor provides the same protection for
anyone standing on the mat.
EXAM PAPER- REVISION QUESTIONS & SOLUTIONS
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
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
,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.
Address Resolution Protocol
A protocol used to resolve an IP address to a MAC address.
Advanced Communications Riser
A riser card standard that AMD, 3Com, and others introduced in 2000 to supersede AMR. It uses
one PCI slot, provides accelerated audio and modem functions as well as networking, and
supports multiple Ethernet NICs.
Advanced Configuration and Power Interface
A power management standard that includes all the power states of APM, plus two more. It also
supports soft power.
Advanced Micro Devices
AMD manufactures CPUs and other products, and its chief rival is Intel Corporation.
Advanced Power Management
A power management standard, introduced by Intel in 1992, that defines four power-usage
operating levels.
Advanced Technology
A type of motherboard used in older PC systems; also refers to the 1984 IBM PC AT model.
, Advanced Technology Attachment
The former name of the Parallel AT Attachment (PATA) interface standard.
Advanced Technology eXtended
A type of motherboard and its variants most commonly used in recent PC systems.
adware
Software installed on a computer without permission that collects information about a user in
order to display targeted advertisements, in the form of either inline banners or pop-ups. Inline
banners are advertisements that run within the context of the current page, taking up screen
real estate.
alternating current
The delivery of electricity (as from a wall outlet) in which the flow of electrons reverses
periodically and has alternating positive and negative values.
amperes (amps)
A measurement of the volume of electrons, also called current. It is calculated with the formula
amps = watts / volts.
analog LCD display
An LCD display that uses a DB-15 connector, which means that it accepts analog signals that it
converts to digital.
analog modem
A modulator/demodulator device that allows computers to communicate with one another over
existing phone lines.
answer file
A file used during an unattended installation of Windows. It provides a script of responses to
the questions Setup asks so the user does not have to answer them manually.
antistatic mat
A mat that provides a path to ground for a static charge and is designed for the desktop or floor
of a workspace. One placed on the workbench reduces the risk of electrostatic discharge for
components placed on it, while one placed on the floor provides the same protection for
anyone standing on the mat.
