CompTIA IT Fundamentals (ITF+) 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 as part of a comprehensive exam preparation program.

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-Rewrittable
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