🎯CompTIA IT Fundamentals - Acronyms

The following is a list of acronyms that appear on the CompTIA IT Fundamentals (ITF+) exam. Candidates are encouraged to review the complete list and attain a working knowledge of all listed acronyms

Acronym	Definition
AC	Alternating Current
ACL	Access Control List
AES	Advanced Encryption Standard
AIO	All In One
APIPA	Automatic Private Internet Protocol Addressing
ARM	Advanced Resolution Protocol
ARP	Address Resolution Protocol
ASCII	American Standard Code for Information Interchange
BD-ROM	Blu-ray Disc-Read-Only Memory
BIOS	Basic Input/Output System
CAD	Computer-Aided Design
CAM	Computer-Aided Manufacturing
CD	Compact Disc
CD-ROM	Compact Disc-Read-Only Memory
CD-RW	Compact Disc-Rewritable
CPU	Central Processing Unit
CRUD	Create, Read, Update, Delete
CSS	Cascading Style Sheets
DC	Direct Current
DDL	Data Definition Language
DDoS	Distributed Denial of Service
DDR	Double Data-Rate
DHCP	Dynamic Host Configuration Protocol
DIMM	Dual Inline Memory Module
DLL	Dynamic Link Layer
DLP	Data Leak Prevention
DML	Data Manipulation Language
DNS	Domain Name Service or Domain Name Server
DoS	Denial of Service
DSL	Digital Subscriber Line
DVD	Digital Video Disc or Digital Versatile Disc
DVD-R	Digital Video Disc-Recordable
DVD-RW	Digital Video Disc-Rewritable
DVI	Digital Visual Interface
EMI	Electromagnetic Interface
eSATA	External Serial Advanced Technology Attachment
ESD	Electrostatic Discharge
EULA	End-User License Agreement
FAT	File Allocation Table
FAT32	32-bit File Allocation Table
FTP	File Transfer Protocol
FTPS	File Transfer Protocol over Secure Sockets Layer
Gb	Gigabit
GB	Gigabyte
Gbps	Gigabit per second
GHz	Gigahertz
GPS	Global Positioning System
GPU	Graphics Processing Unit
GUI	Graphical User Interface
HDD	Hard Disk Drive
HDMI	High-Definition Media Interface
HFS	Hierarchical File System
HTML	Hypertext Markup Language
HTTP	Hypertext Transfer Protocol
HTTPS	Hypertext Transfer Protocol Secure
ICMP	Internet Control Message Protocol
IDS	Intrusion Detection System
IMAP	Internet Mail Access Protocol
IOPS	Input/Output Operations Per Second
IoT	Internet of Things
IP	Internet Protocol
IPS	Intrusion Prevention System
IR	Infrared
ISP	Internet Service Provider
Kb	Kilobit
KB	Kilobyte or Knowledge Base
Kbps	Kilobit per second
LAN	Local Area Network
MAC	Media Acces Control
Mb	Megabit
MB	Megabyte
Mbps	Megabit per second
MHz	Megahertz
MITM	Man in the Middle
MP3	Moving Picture Experts Group Layer 3 Audio
MP4	Moving Picture Experts Group Layer 4
NAS	Network Attached Storage
NDA	Non-Disclosure Agreement
NFC	Near Field Communications
NIC	Network Interface Card
NTFS	New Technology File System
OEM	Original Equipment Manufacturer
OS	Operating System
PB	Petabyte
PC	Personal Computer
PCI	Peripheral Component Interconnect
PCIe	Peripheral Component Interconnect Express
PII	Personally Identifiable Information
PIN	Personal Identification Number
POP	Post Office Protocol
POP3	Post Office Protocol 3
PSU	Power Supply Unit
PXE	Preboot Execution Environment
RAID	Redundant Array of Independent Disks
RAM	Random Access Memory
RF	Radio Frequency
RJ	Registered Jack
RJ-11	Registered Jack Function 11
RJ-45	Registered Jack Function 45
ROM	Read-Only Memory
SaaS	Software as a Service
SATA	Serial Advanced Technology Attachment
SD Card	Secure Digital Card
SFTP	Secure File Transfer Protocol
SID	System Identifier
SMB	Server Message Block
SMTP	Simple Mail Transfer Protocol
SNMP	Simple Network Management Protocol
SOHO	Small Office, Home Office
SQL	Structured Query Language
SSD	Solid State Drive
SSID	Service Set Identifier
SSO	Secure Sign-On
SSL	Secure Sockets Layer
Tb	Terabit
TB	Terabyte
Tbps	Terabits per second
TCP	Transmission Control Protocol
TCP/IP	Transmission Control Protocol/Internet Protocol
TKIP	Temporal Key Integrity Protocol
TLS	Thread Local Storage
UPS	Uninterruptable Power Supply
URL	Uniform Resource Locator
USB	Universal Serial Bus
VGA	Video Graphics Array or Video Graphics Adapter
VoIP	Voice over Internet Protocol
VPN	Virtual Private Network
WAN	Wide Area Network
WAP	Wireless Access Point
WEP	Wired Equivalency Privacy
WIFI	Wireless Fidelity
WLAN	Wireless Local Area Network
WPA	Wireless Protected Access
WPA2	Wireless Protected Access 2