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Comptia A+ (Plus) Acronyms

ct_admin February 23, 2019

Test yourself to see if you know what each of the acronyms mean. Click on the down arrow next to each item to reveal the definition. If needed, click on the definition to link to a review of the concept.

Additionally, a quizlet of flashcards can be found here: CompTIA A+ 220-1001 & 220-1002 Acronyms

AV
Audio Video

AC
Alternating Current

ACL
Access Control List

ACPI
Advanced Configuration Power Interface

ADF
Automatic Document Feeder

ADSL
Asymmetrical Digital Subscriber Line

AES
Advanced Encryption Standard

AHCI
Advanced Host Controller Interface

AP
Access Point

APIPA
Private Internet Protocol Addressing

APM
Advanced Power Management

ARP
Address Resolution Protocol

ASR
Automated System Recovery

ATA
Advanced Technology Attachment

ATAPI
Advanced Technology Attachment Packet Interface

ATM
Asynchronous Transfer Mode

ATX
Advanced Technology Extended

AUP
Acceptable Use Policy

BD-R
Blu-ray Disc Recordable

BD-RE
Blu-ray Disc Rewritable

BIOS
Basic Input/Output System

BNC
Bayonet-Neill-Concelman

BSOD
Blue Screen of Death

BYOD
Bring Your Own Device

CAD
Computer-Aided Design

CAPTCHA
Completely Automated Public Turing test to tell and Humans Apart

CD
Compact Disc

CDFS
Compact Disc File System

CD-ROM
Compact Disc-Read-Only Memory

CD-RW
Compact Disc-Rewritable

CERT
Computer Emergency Response Team

CFS
Central File System, Common File System,or Command System

CGA
Computer Graphics and Applications

CIDR
Classless Inter-Domain Routing

CIFS
Common Internet File System

CMOS
Complementary Metal-Oxide Semiconductor

CNR
Communications and Networking Riser

COMx
Communication port (x=port number)

CPU
Central Processing Unit

CRT
Cathode-Ray Tube

DaaS
Data as a Service

DAC
Discretionary Access Control

DB-25
Serial Communications D-Shell Connector, 25 pins

DB-9
Serial Communications D-Shell Connector, 9 pins

Dbaas
Database as a Service

DC
Direct Current

DDoS
Distributed Denial of Service

DDR
Double Data Rate

DFS
Distributed File System

DHCP
Dynamic Host Configuration Protocol

DIMM
Dual Inline Memory Module

DIN
Deutsche Industrie Norm

DLP
Digital Light Processing or Data Loss Prevention

DLT
Digital Linear Tape: DLT is a mass storage technology that uses special removable magnetic data tape cartridges. Data must be stored sequentially with DLT so access time to restore individual files is low. High end tape drives can write data to tape at transfer speed compariable to hard drive speeds. DLT can store data reliable for up to 80 years under a controlled environment.

DMA
Direct Memory Access

DMZ
Demilitarized Zone

DNS
Domain Name Service or Domain Name Server

DoS
Denial of Service

DRAM
Dynamic Random Access Memory

DRM
Digital Rights Management

DSLv
Digital Subscriber Line

DVD
Digital Versatile Disc

DVD-R
Digital Versatile Disc-Recordable

DVD-RAM
Digital Versatile Disc-Random Access Memory: Used in camcorders and personal video recorders.

DVD-ROM
Digital Versatile Disc-Read Only Memory

DVD-RW
Digital Versatile Disc-Rewritable

DVI
Digital Visual Interface

DVI-D
Digital Visual Interface-Digital

ECC
Error Correcting Code

ECP
Extended Capabilities Port

EEPROM
Electrically Erasable Programmable Read-Only Memory

EFS
Encrypting File System

EIDE
Enhanced Integrated Drive Electronics

EMI
Electromagnetic Interference

EMP
Electromagnetic Pulse

EPP
Enhanced Parallel Port

EPROM
Erasable Programmable Read-Only Memory

ERD
Emergency Repair Disk

eSATA
External Serial Advanced Technology Attachment

ESD
Electrostatic Discharge

EULA
End User License Agreement

EVGA
Extended Video Graphics Adapter/Array

exFAT
Extended File Allocation Table

Ext2
Second Extended File System

FAT
File Allocation Table

FAT12
12-bit File Allocation Table

FAT16
16-bit File Allocation Table

FAT32
32-bit File Allocation Table

FDD
Floppy Disk Drive

FPM
Fast Page Mode: Memory technology that is faster than original DRAM but slower than newer RAM technologies.

FQDN
Fully Qualified Domain Name

FSB
Front-Side Bus

FTP
File Transfer Protocol

GDDR
Graphics Double Data Rate

GDI
Graphics Device Interface

GPS
Global Positioning System

GPT
GUID Partition Table

GPU
Graphics Processing Unit

GSM
Global System for Mobile Communications

GUI
Graphical User Interface. GUI is a user interface that uses the computer’s graphics capabilities to make it easier for the user to interact with the operating system by manipulating graphic objects on the desktop.

GUID
Globally Unique Identifier

HAL
Hardware Abstraction Layer

HAV
Hardware Assisted Virtualization

HCL
Hardware Compatibility List. The HCL is a list of compatible hardware that was included on Windows distribution discs and available on the Microsoft website. HCL has been replaced by the Upgrade Advisor/Assistant.

HDCP
High-Bandwidth Digital Content Protection

HDD
Hard Disk Drive

HDMI
High Definition Media Interface

HIPS
Host Intrusion Prevention System

HPFS
High Performance File System

HTML
Hypertext Markup Language

HTPC
Home Theater PC

HTTP
Hypertext Transfer Protocol

HTTPS
Hypertext Transfer Protocol Secure

I/O
Input/Output

IaaS
Infrastructure as a Service

ICMP
Internet Control Message Protocol

ICR
Intelligent Character Recognition

IDE
Integrated Drive Electronics

IDS
Intrusion Detection System

IEEE
Institute of Electrical and Electronics Engineers

IIS
Internet Information Services

IMAP
Internet Mail Access Protocol

IMEI
International Mobile Equipment Identity

IMSI
International Mobile Subscriber Identity

IP
Internet Protocol

IPConfig
Internet Protocol Configuration

IPP
Internet Printing Protocol

IPS
Intrusion Prevention System

IPSec
Internet Protocol Security

IR
Infrared

IrDA
Infrared Data Association • Infrared wireless networking protocol • Needs direct line of sight • Only for point to point ad hoc communication • Up to 4 Mbps • Range of 1 meter (39 inches) • No security • Half duplex

IRP
Incident Response Plan

IRQ
Interrupt Request

ISA
Industry Standard Architecture

ISDN
Integrated Services Digital Network • Process of sending telephone transmission across fully digital lines end to end
ISO
International Organization for Standardization

ISP
Internet Service Provider

JBOD
Just a Bunch of Disks

KB
Knowledge Base

KVM
Kernel-based Virtual Machine

LAN
Local Area Network

LBA
Logical Block Addressing

LC
Lucent Connector

LCD
Liquid Crystal Display

LDAP
Lightweight Directory Access Protocol

LED
Light Emitting Diode

LPD/LPR
Line Printer Daemon/Line Printer Remote

LPT
Line Printer Terminal

LVD
Low Voltage Differential

MAC
Media Access Control/Mandatory Access Control

MAN
Metropolitan Area Network

MAPI
Messaging Application Programming Interface

mATX
Micro Advanced Technology Extended

MAU
Media Access Unit/Media Attachment Unit

MBR
Master Boot Record

MBSA
Microsoft Baseline

MDM
Mobile Device Management

MFA
Multifactor Authentication

MFD
Multifunction Device

MFP
Multifunction Product

MicroDIMM
Micro Dual Inline Memory Module

MIDI
Musical Instrument Digital Interface

MIME
Multipurpose Internet Mail Extension

MIMO
Multiple Input Multiple Output

MMC
Microsoft Management Console

MP3
Moving Picture Experts Group Layer 3 Audio

MP4
Moving Picture Experts Group Layer 4

MPEG
Moving Picture Experts Group

MSConfig
Microsoft Configuration

MSDS
Material Safety Data Sheet

MT-RJ
Mechanical Transfer Registered Jack

MUI
Multilingual User Interface

NaaS
Network as a Service

NAC
Network Access Control

NAS
Network-Attached Storage

NAT
Network Address Translation

NetBEUI
Networked Basic Input/Output System Extended User Interface

NetBIOS
Networked Basic Input/Output System

NFC
Near Field Communication

NFS
Network File System

NIC
Network Interface Card

NiCd
Nickel Cadmium

NiMH
Nickel Metal Hydride

NLX
New Low-profile Extended

NNTP
Network News Transfer Protocol

NTFS
New Technology File System

NTLDR
New Technology Loader

NTP
Network Time Protocol

NTSC
National Transmission Standards Committee

NVMe
Non-volatile Memory Express

OCR
Optical Character Recognition

OEM
Original Equipment Manufacturer

OLED
Organic Light Emitting Diode

OS
Operating System

PaaS
Platform as a Service

PAL
Phase Alternating Line

PAN
Personal Area Network

PAT
Port Address Translation

PC
Personal Computer

PCI
Peripheral Component Interconnect

PCIe
Peripheral Component Interconnect Express

PCIX
Peripheral Component Interconnect Extended

PCL
Printer Control Language

PCMCIA
Personal Computer Memory Card International Association:Older laptops may have had PCMCIA external expansion slots for the user to insert expansion cards.

PE
Preinstallation Environment

PGA
Pin Grid Array

PGA2
Pin Grid Array 2

PGP
Pretty Good Protection

PHI
Personal Health Information

PII
Personally Identifiable Information

PIN
Personal Identification Number

PKI
Public Key Infrastructure

PnP
Plug and Play

PoE
Power over Ethernet

POP3
Post Office Protocol 3

PoS
Point of Sale

POST
Power-On Self-Test

POTS
Plain Old Telephone Service

PPM
Pages Per Minute

PPP
Point-to-Point Protocol • Streaming protocol developed especially for dial up Internet access

PPTP
Point-to-Point Tunneling Protocol

PRI
Primary Rate Interface

PROM
Programmable Read-Only Memory

PS/2
Personal System/2 connector

PSTN
Public Switched Telephone Network

PSU
Power Supply Unit

PVA
Patterned Vertical Alignment

PVC
Permanent Virtual Circuit

PXE
Preboot Execution Environment

QoS
Quality of Service

RADIUS
Remote Authentication Dial-In User Server

RAID
Redundant Array of Independent (or inexpensive) Discs

RAM
Random Access Memory

RAS
Remote Access Service

RDP
Remote Desktop Protocol

RF
Radio Frequency

RFI
Radio Frequency Interference

RFID
Radio Frequency Identification

RGB
Red Green Blue

RIP
Routing Information Protocol

RIS
Remote Installation Service

RISC
Reduced Instruction Set Computer

RJ-11
Registered Jack Function 11

RJ-45
Registered Jack Function 45

RMA
Returned Materials Authorization

ROM
Read-Only Memory

RPO
Recovery Point Objective

RT
Recovery Time Objective

RTC
Real-Time Clock

RTO
Recovery Time Objective

S.M.A.R.T.
Self-Monitoring, Analysis, and Reporting Technology

SaaS
Software as a Service

SAN
Storage Area Network

SAS
Serial Attached SCSI

SATA
Serial Advanced Technology Attachment

SC
Subscription Channel

SCP
Secure Copy Protection

SCSI
Small Computer System Interface

SD
Secure Digital Card

SEC
Single Edge Connector

SFC
System File Checker

SFF
Small Form Factor

SFTP
Secure File Transfer Protocol

SIM
Subscriber Identity Module

SIMM
Single In-Line Memory Module

SLI
Scalable Link Interface or System Level Integration Scanline Interleave Mode

SMB
Server Message Block

SMTP
Simple Mail Transfer Protocol

SNMP
Simple Network Management Protocol

SoDIMM
Small Outline Dual Inline Memory Module

SOHO
Small Office/Home Office

SP
Service Pack

SPDIF
Sony-Philips Digital Interface Format: Digital sound interface

SPGA
Staggered Pin Grid Array

SRAM
Static Random Access Memory

SSD
Solid State Drive

SSH
Secure Shell

SSID
Service Set Identifierc

SSL
Secure Sockets Layer

SSO
Single Sign-on

ST
Straight Tip

STP
Shielded Twisted Pair

SXGA
Super Extended Graphics Array

TACACS
Terminal Access Controller Access-Control System

TCP
Transmission Control Protocol

TCP/IP
Transmission Control Protocol/Internet Protocol • Goal is to link any two hosts whether on the same LAN or on some other network within the WAN • By default configured to receive IP address from DHCP server on the network. To enter manually open Control Panel and go to Network and Sharing center applet. Click Change adapter settings. Double click on Local Area Network icon. Click on Properties button. Highlight Internet Protocol Version 4 (TCP/IPv4) and click Properties button • To configure to connect to a network you’ll need: IP address, Subnet mask, Default gateway (optional), and DNS server (optional)

TDR
Time Domain Reflectometer

TFTP
Trivial File Transfer Protocol

TKIP
Temporal Key Integrity Protocol

TLS
Transport Layer Security

TN
Twisted Nematic

TPM
Trusted Platform Module

UAC
User Account Control. UAC is a security feature introduced in Windows Vista to prevent unauthorized changes in Windows.

UDF
User Defined Functions or Universal Disk Format Universal Data Format

UDP
User Datagram Protocol

UEFI
Unified Extensible Firmware Interface

UNC
Universal Naming Convention

UPnP
Universal Plug and Play

UPS
Uninterruptible Power Supply

URL
Uniform Resource Locator

USB
Universal Serial Bus

USMT
User State Migration Tool

UTM
Unified Threat Management

UTP
Unshielded Twisted Pair

UXGA
Ultra Extended Graphics Array

VA
Vertical Alignment

VDC
Volts DC

VDI
Virtual Desktop Infrastructure

VESA
Video Electronics Standards Association

VFAT
Virtual File Allocation Table

VGA
Video Graphics Array

VLAN
Virtual LAN

VM
Virtual Machine

VNC
Virtual Network Computer

VoIP
Voice over Internet Protocol

VPN
Virtual Private Network

VRAM
Video Random Access Memory

WAN
Wide Area Network

WAP
Wireless Access Protocol/Wireless Access Point

WEP
Wired Equivalent Privacy

WIFI
Wireless Fidelity

WINS
Windows Internet Name Service

WLAN
Wireless Local Area Network

WMN
Wireless Mesh Network

WPA
Wireless Protected Access

WPA2
WiFi Protected Access 2

WPS
WiFi Protected Setup • Push button on device then push button on the other device to connect. Or you can use a code to connect to the network. • Has a security flaw in that hacker can repeatedly guess codes. • Best practice is to shut down WPS.

WUXGA
Wide Ultra Extended Graphics Array

WWAN
Wireless Wide Area Network • Works similarly to a wireless LAN but connects multiple networks similarly to a WAN.

XGA
Extended Graphics Array

ZIF
Zero-Insertion-Force

ZIP
Zigzag Inline Package


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