CompTIA A+

Question 1

AC

Answer 1

ALTERNATING CURRENT - Electric voltage which periodically reverses direction; form in which electric power is delivered to businesses and residences; form of electrical energy that consumers typically use when they plug electric appliances into a wall socket

Question 2

ACL

Answer 2

ACCESS CONTROL LIST - An access-control list (ACL), with respect to a computer file system, is a list of permissions attached to an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in a typical ACL specifies a subject and an operation. For instance, if a file object has an ACL that contains (Alice: read,write; Bob: read), this would give Alice permission to read and write the file and Bob to only read it.

Question 3

ACPI

Answer 3

ADVANCED CONFIGURATION POWER INTERFACE - In a computer, the Advanced Configuration and Power Interface (ACPI) provides an open standard that operating systems can use to discover and configure computer hardware components, to perform power management by (for example) putting unused components to sleep, and to perform status monitoring.

Question 4

ADF

Answer 4

AUTOMATIC DOCUMENT FEEDER - a feature in printers, photocopiers, fax machines or scanners wherein a stack of paper put into the machine and is then automatically fed through it, allowing the user to print, scan or copy without having to manually place each page into the machine.

Question 5

ADSL

Answer 5

ASYMMETRIC DIGITAL SUBSCRIBER LINE - type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.

Question 6

AES

Answer 6

ADVANCED ENCRYPTION STANDARD - symmetric block cipher chosen by the U.S. government to protect classified information and is implemented in software and hardware throughout the world to encrypt sensitive data.

Question 7

AHCI

Answer 7

ADVANCED HOST CONTROLLER INTERFACE - a technical standard defined by Intel that specifies the operation of Serial ATA (SATA) host controllers in a non-implementation-specific manner in its motherboard chipsets.

Question 8

AP

Answer 8

ACCESS POINT

Question 9

APIPA

Answer 9

AUTOMATIC PRIVATE INTERNET PROTOCOL ADDRESSING - a feature of Windows-based operating systems (included in Windows 98, ME, 2000, and XP) that enables a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protocol (DHCP) server available to perform that function.

Question 10

APM

Answer 10

ADVANCED POWER MANAGEMENT - an API developed by Intel and Microsoft and released in 1992 which enables an operating system running an IBM-compatible personal computer to work with the BIOS (part of the computer’s firmware) to achieve power management.

Question 11

ARP

Answer 11

ADDRESS RESOLUTION PROTOCOL - a protocol used by the Internet Protocol (IP) [RFC826], specifically IPv4, to map IP network addresses to the hardware addresses used by a data link protocol. The protocol operates below the network layer as a part of the interface between the OSI network and OSI link layer.

Question 12

ASR

Answer 12

AUTOMATED SYSTEM RECOVERY - a feature of the Windows XP operating system that can be used to simplify recovery of a computer’s system or boot volumes. ASR consists of two parts: an automated backup, and an automated restore. The backup portion can be accessed in the Backup utility under System Tools.

Question 13

ATA

Answer 13

ADVANCED TECHNOLOGY ATTACHMENT - a standard physical interface for connecting storage devices within a computer. ATA allows hard disks and CD-ROMs to be internally connected to the motherboard and perform basic input/output functions.

Question 14

ATAPI

Answer 14

ADVANCED TECHNOLOGY ATTACHMENT PACKET INTERFACE - an interface between your computer and attached CD-ROM drives and tape backup drives. Most of today’s PC computers use the standard Integrated Drive Electronics (IDE) interface to address hard disk drives.

Question 15

ATM

Answer 15

ASYNCHRONOUS TRANSFER MODE - a switching technique that uses time division multiplexing (TDM) for data communications. ATM networks are connection oriented networks for cell relay that supports voice, video and data communications.

Question 16

ATX

Answer 16

ADVANCED TECHNOLOGY EXTENDED - a motherboard and power supply configuration specification developed by Intel in 1995 to improve on previous de facto standards like the AT design.

Question 17

AUP

Answer 17

ACCEPTABLE USE POLICY - or fair use policy, is a set of rules applied by the owner, creator or administrator of a network, website, or service, that restrict the ways in which the network, website or system may be used and sets guidelines as to how it should be used.

Question 18

A/V

Answer 18

AUDIO VIDEO

Question 19

BD-R

Answer 19

BLU-RAY DISC RECORDABLE

Question 20

BIOS

Answer 20

BASIC INPUT/OUTPUT SYSTEM - is non-volatile firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs.

Question 21

BD-RE

Answer 21

BLU-RAY DISC REWRITABLE

Question 22

BNC

Answer 22

BAYONET-NEILL-CONCELMAN - a miniature quick connect/disconnect radio frequency connector used for coaxial cable. The interface specifications for the BNC and many other connectors are referenced in MIL-STD-348.

Question 23

BSOD

Answer 23

BLUE SCREEN OF DEATH - an error screen displayed on a Windows computer system after a fatal system error, also known as a system crash: when the operating system reaches a condition where it can no longer operate safely.

Question 24

BYOD

Answer 24

BRING YOUR OWN DEVICE - also called bring your own technology (BYOT), bring your own phone (BYOP), and bring your own personal computer (BYOPC)—refers to the policy of permitting employees to bring personally owned devices (laptops, tablets, and smart phones) to their workplace, and to use those devices to access privileged company information and applications. The phenomenon is commonly referred to as IT consumerization.

Question 25

CAD

Answer 25

COMPUTER-AIDED DESIGN - the use of computers (or workstations) to aid in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing.

Question 26

CAPTCHA

Answer 26

COMPLETELY AUTOMATED PUBLIC TURING test to tell COMPUTERS and HUMANS APART - a program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites.

Question 27

CD

Answer 27

COMPACT DISC

Question 28

CD-ROM

Answer 28

COMPACT DISC-READ-ONLY MEMORY

Question 29

CD-RW

Answer 29

COMPACT DISC-REWRITABLE

Question 30

CDFS

Answer 30

COMPACT DISC FILE SYSTEM - a file extension for a virtual file system used with Linux. CDFS stands for CD File System. CDFS contains all tracks and boot images extracted from a CD. CDFS can contain the following track types: Red Book audio, White Book video and Yellow Book Data.