Make sure you know these common CompTIA acronyms before taking your exam. We have grouped the acronyms together by exam.
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CompTIA A+ Acronyms
AAA | Authentication, Authorization, and Accounting
AC | Alternating Current
ACL | Access Control List
ADF | Automatic Document Feeder
AES | Advanced Encryption Standard
AP | Access Point
APFS | Apple File System
APIPA | Automatic Private Internet Protocol Addressing
APK | Android Package
ARM | Advanced RISC (Reduced Instruction Set Computer) Machine
ARP | Address Resolution Protocol
ATA | Advanced Technology Attachment
ATM | Asynchronous Transfer Mode
ATX | Advanced Technology Extended
AUP | Acceptable Use Policy
BIOS | Basic Input/Output System
BSOD | Blue Screen of Death
BYOD | Bring Your Own Device
CAD | Computer-aided Design
CAPTCHA | Completely Automated Public Turing Test to Tell Computers and Humans Apart
CD | Compact Disc
CDFS | Compact Disc File System
CDMA | Code-Division Multiple Access
CERT | Computer Emergency Response Team
CIFS | Common Internet File System
CMD | Command Prompt
CMOS | Complementary Metal-Oxide Semiconductor
CPU | Central Processing Unit
CRL | Certificate Revocation List
DC | Direct Current
DDoS | Distributed Denial of Service
DDR | Double Data Rate
DHCP | Dynamic Host Configuration Protocol
DIMM | Dual Inline Memory Module
DKIM | DomainKeys Identified Mail
DMA | Direct Memory Access
DMARC | Domain-based Message Authentication, Reporting, and Conformance
DNS | Domain Name System
DoS | Denial of Service
DRAM | Dynamic Random-Access Memory
DRM | Digital Rights Management
DSL | Digital Subscriber Line
DVI | Digital Visual Interface
DVI-D | Digital Visual Interface-Digital
ECC | Error Correcting Code
EFS | Encrypting File System
EMI | Electromagnetic Interference
EOL | End-of-Life
eSATA | External Serial Advanced Technology Attachment
ESD | Electrostatic Discharge
EULA | End-User License Agreement
exFAT | Extensible File Allocation Table
ext | 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
FSB | Front-Side Bus
FTP | File Transfer Protocol
GFS | Grandfather-Father-Son
GPS | Global Positioning System
GPT | GUID (Globally Unique Identifier) Partition Table
GPU | Graphics Processing Unit
GSM | Global System for Mobile Communications
GUI | Graphical User Interface
GUID | Globally Unique Identifier
HAL | Hardware Abstraction Layer
HAV | Hardware-assisted Virtualization
HCL | Hardware Compatibility List
HDCP | High-bandwidth Digital Content Protection
HDD | Hard Disk Drive
HDMI | High-Definition Multimedia Interface
HSM | Hardware Security Module
HTML | Hypertext Markup Language
HTTP | Hypertext Transfer Protocol
HTTPS | Hypertext Transfer Protocol Secure
I/O | Input/Output
IaaS | Infrastructure as a Service
ICR | Intelligent Character Recognition
IDE | Integrated Drive Electronics
IDS | Intrusion Detection System
IEEE | Institute of Electrical and Electronics Engineers
IMAP | Internet Mail Access Protocol
IOPS | Input/Output Operations Per Second
IoT | Internet of Things
IP | Internet Protocol
IPS | Intrusion Prevention System
IPS | In-plane Switching
IPSec | Internet Protocol Security
IR | Infrared
IrDA | Infrared Data Association
IRP | Incident Response Plan
ISO | International Organization for Standardization
ISP | Internet Service Provider
ITX | Information Technology eXtended
KB | Knowledge Base
KVM | Keyboard-Video-Mouse
LAN | Local Area Network
LC | Lucent Connector
LCD | Liquid Crystal Display
LDAP | Lightweight Directory Access Protocol
LED | Light-emitting Diode
MAC | Media Access Control/Mandatory Access Control
MAM | Mobile Application Management
MAN | Metropolitan Area Network
MBR | Master Boot Record
MDM | Mobile Device Management
MFA | Multifactor Authentication
MFD | Multifunction Device
MFP | Multifunction Printer
MMC | Microsoft Management Console
MOU | Memorandum of Understanding
MSDS | Material Safety Data Sheet
MSRA | Microsoft Remote Assistance
MX | Mail Exchange
NAC | Network Access Control
NAT | Network Address Translation
NDA | Non-disclosure Agreement
NetBIOS | Networked Basic Input/Output System
NetBT | NetBIOS over TCP/IP (Transmission Control Protocol/Internet Protocol)
NFC | Near-field Communication
NFS | Network File System
NIC | Network Interface Card
NTFS | New Technology File System
NVMe | Non-volatile Memory Express
OCR | Optical Character Recognition
OLED | Organic Light-emitting Diode
ONT | Optical Network Terminal
OS | Operating System
PaaS | Platform as a Service
PAN | Personal Area Network
PC | Personal Computer
PCIe | Peripheral Component Interconnect Express
PCL | Printer Command Language
PE | Preinstallation Environment
PII | Personally Identifiable Information
PIN | Personal Identification Number
PKI | Public Key Infrastructure
PoE | Power over Ethernet
POP3 | Post Office Protocol 3
POST | Power-on Self-Test
PPP | Point-to-Point Protocol
PRL | Preferred Roaming List
PSU | Power Supply Unit
PXE | Preboot Execution Environment
RADIUS | Remote Authentication Dial-in User Service
RAID | Redundant Array of Independent (or Inexpensive) Disks
RAM | Random-access Memory
RDP | Remote Desktop Protocol
RF | Radio Frequency
RFI | Radio-Frequency Interference
RFID | Radio-Frequency Identification
RJ11 | Registered Jack Function 11
RJ45 | Registered Jack Function 45
RMM | Remote Monitoring and Management
RTO | Recovery Time Objective
SaaS | Software as a Service
SAN | Storage Area Network
SAS | Serial Attached SCSI (Small Computer System Interface)
SATA | Serial Advanced Technology Attachment
SC | Subscriber Connector
SCADA | Supervisory Control and Data Acquisition
SCP | Secure Copy Protection
SCSI | Small Computer System Interface
SDN | Software-defined Networking
SFTP | Secure File Transfer Protocol
SIM | Subscriber Identity Module
SIMM | Single Inline Memory Module
S.M.A.R.T. | Self-monitoring Analysis and Reporting Technology
SMB | Server Message Block
SMS | Short Message Service
SMTP | Simple Mail Transfer Protocol
SNMP | Simple Network Management Protocol
SNTP | Simple Network Time Protocol
SODIMM | Small Outline Dual Inline Memory Module
SOHO | Small Office/Home Office
SPF | Sender Policy Framework
SQL | Structured Query Language
SRAM | Static Random-access Memory
SSD | Solid-State Drive
SSH | Secure Shell
SSID | Service Set Identifier
SSL | Secure Sockets Layer
SSO | Single Sign-on
ST | Straight Tip
STP | Shielded Twisted Pair
TACACS | Terminal Access Controller Access-Control System
TCP | Transmission Control Protocol
TCP/IP | Transmission Control Protocol/Internet Protocol
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
UDP | User Datagram Protocol
UEFI | Unified Extensible Firmware Interface
UNC | Universal Naming Convention
UPnP | Universal Plug and Play
UPS | Uninterruptible Power Supply
USB | Universal Serial Bus
UTM | Unified Threat Management
UTP | Unshielded Twisted Pair
VA | Vertical Alignment
VDI | Virtual Desktop Infrastructure
VGA | Video Graphics Array
VLAN | Virtual LAN (Local Area Network)
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
WEP | Wired Equivalent Privacy
WISP | Wireless Internet Service Provider
WLAN | Wireless LAN (Local Area Network)
WMN | Wireless Mesh Network
WPA | WiFi Protected Access
WWAN | Wireless Wide Area Network
XSS | Cross-site Scripting
You can practice for this exam with our CompTIA A+ practice exams.
CompTIA Security+ Acronyms
3DES | Triple Data Encryption Standard
AAA | Authentication, Authorization, and Accounting
ABAC | Attribute-based Access Control
ACL | Access Control List
AD | Active Directory
AES | Advanced Encryption Standard
AES256 | Advanced Encryption Standards 256bit
AH | Authentication Header
AI | Artificial Intelligence
AIS | Automated Indicator Sharing
ALE | Annualized Loss Expectancy
AP | Access Point
API | Application Programming Interface
APT | Advanced Persistent Threat
ARO | Annualized Rate of Occurrence
ARP | Address Resolution Protocol
ASLR | Address Space Layout Randomization
ASP | Active Server Pages
ATT&CK | Adversarial Tactics, Techniques, and Common Knowledge
AUP | Acceptable Use Policy
AV | Antivirus
BASH | Bourne Again Shell
BCP | Business Continuity Planning
BGP | Border Gateway Protocol
BIA | Business Impact Analysis
BIOS | Basic Input/Output System
BPA | Business Partnership Agreement
BPDU | Bridge Protocol Data Unit
BSSID | Basic Service Set Identifier
BYOD | Bring Your Own Device
CA | Certificate Authority
CAPTCHA | Completely Automated Public Turing Test to Tell Computers and Humans Apart
CAR | Corrective Action Report
CASB | Cloud Access Security Broker
CBC | Cipher Block Chaining
CBT | Computer-based Training
CCMP | Counter-Mode/CBC-MAC Protocol
CCTV | Closed-Circuit Television
CERT | Computer Emergency Response Team
CFB | Cipher Feedback
CHAP | Challenge-Handshake Authentication Protocol
CIO | Chief Information Officer
CIRT | Computer Incident Response Team
CIS | Center for Internet Security
CMS | Content Management System
CN | Common Name
COOP | Continuity of Operations Planning
COPE | Corporate-owned Personally Enabled
CP | Contingency Planning
CRC | Cyclic Redundancy Check
CRL | Certificate Revocation List
CSA | Cloud Security Alliance
CSIRT | Computer Security Incident Response Team
CSO | Chief Security Officer
CSP | Cloud Service Provider
CSR | Certificate Signing Request
CSRF | Cross-Site Request Forgery
CSU | Channel Service Unit
CTM | Counter-Mode
CTO | Chief Technology Officer
CVE | Common Vulnerabilities and Exposures
CVSS | Common Vulnerability Scoring System
CYOD | Choose Your Own Device
DAC | Discretionary Access Control
DBA | Database Administrator
DDoS | Distributed Denial-of-Service
DEP | Data Execution Prevention
DER | Distinguished Encoding Rules
DES | Data Encryption Standard
DHCP | Dynamic Host Configuration Protocol
DHE | Diffie-Hellman Ephemeral
DKIM | Domain Keys Identified Mail
DLL | Dynamic-link Library
DLP | Data Loss Prevention
DMARC | Domain Message Authentication Reporting and Conformance
DNAT | Destination Network Address Transaction
DNS | Domain Name System
DNSSEC | Domain Name System Security Extensions
DoS | Denial-of-Service
DPO | Data Protection Officer
DRP | Disaster Recovery Plan
DSA | Digital Signature Algorithm
DSL | Digital Subscriber Line
EAP | Extensible Authentication Protocol
ECB | Electronic Code Book
ECC | Elliptic-curve Cryptography
ECDHE | Elliptic-curve Diffie-Hellman Ephemeral
ECDSA | Elliptic-curve Digital Signature Algorithm
EDR | Endpoint Detection and Response
EFS | Encrypted File System
EIP | Extended Instruction Pointer
EOL | End of Life
EOS | End of Service
ERP | Enterprise Resource Planning
ESN | Electronic Serial Number
ESP | Encapsulating Security Payload
ESSID | Extended Service Set Identifier
FACL | File System Access Control List
FDE | Full Disk Encryption
FIM | File Integrity Monitoring
FPGA | Field Programmable Gate Array
FRR | False Rejection Rate
FTP | File Transfer Protocol
FTPS | Secured File Transfer Protocol
GCM | Galois/Counter Mode
GDPR | General Data Protection Regulation
GPG | GNU Privacy Guard
GPO | Group Policy Object
GPS | Global Positioning System
GPU | Graphics Processing Unit
GRE | Generic Routing Encapsulation
HA | High Availability
HDD | Hard Disk Drive
HIDS | Host-based Intrusion Detection System
HIPS | Host-based Intrusion Prevention System
HMAC | Hash-based Message Authentication Code
HOTP | HMAC-based One-time Password
HSM | Hardware Security Module
HSMaaS | Hardware Security Module as a Service
HTML | Hypertext Markup Language
HTTP | Hypertext Transfer Protocol
HTTPS | Hypertext Transfer Protocol Secure
HVAC | Heating, Ventilation, Air Conditioning
IaaS | Infrastructure as a Service
IAM | Identity and Access Management
ICMP | Internet Control Message Protocol
ICS | Industrial Control Systems
IDEA | International Data Encryption Algorithm
IDF | Intermediate Distribution Frame
IdP | Identity Provider
IDS | Intrusion Detection System
IEEE | Institute of Electrical and Electronics Engineers
IKE | Internet Key Exchange
IM | Instant Messaging
IMAP4 | Internet Message Access Protocol v4
IoC | Indicators of Compromise
IoT | Internet of Things
IP | Internet Protocol
IPS | Intrusion Prevention System
IPSec | Internet Protocol Security
IR | Incident Response
IRC | Internet Relay Chat
IRP | Incident Response Plan
ISA | Interconnection Security Agreement
ISFW | Internal Segmentation Firewall
ISO | International Organization for Standardization
ISP | Internet Service Provider
ISSO | Information Systems Security Officer
ITCP | IT Contingency Plan
IV | Initialization Vector
KDC | Key Distribution Center
KEK | Key Encryption Key
L2TP | Layer 2 Tunneling Protocol
LAN | Local Area Network
LDAP | Lightweight Directory Access Protocol
LEAP | Lightweight Extensible Authentication Protocol
MaaS | Monitoring as a Service
MAC | Media Access Control
MAM | Mobile Application Management
MAN | Metropolitan Area Network
MBR | Master Boot Record
MD5 | Message Digest 5
MDF | Main Distribution Frame
MDM | Mobile Device Management
MFA | Multifactor Authentication
MFD | Multifunction Device
MFP | Multifunction Printer
ML | Machine Learning
MMS | Multimedia Message Service
MOA | Memorandum of Agreement
MOU | Memorandum of Understanding
MPLS | Multiprotocol Label Switching
MSA | Measurement Systems Analysis
MS-CHAP | Microsoft Challenge-Handshake Authentication Protocol
MSP | Managed Service Provider
MSSP | Managed Security Service Provider
MTBF | Mean Time Between Failures
MTTF | Mean Time to Failure
MTTR | Mean Time to Repair
MTU | Maximum Transmission Unit
NAC | Network Access Control
NAS | Network-attached Storage
NAT | Network Address Translation
NDA | Non-disclosure Agreement
NFC | Near-field Communication
NFV | Network Function Virtualization
NGFW | Next-generation Firewall
NG-SWG | Next-generation Secure Web Gateway
NIC | Network Interface Card
NIDS | Network-based Intrusion Detection System
NIPS | Network-based Intrusion Prevention System
NIST | National Institute of Standards & Technology
NOC | Network Operations Center
NTFS | New Technology File System
NTLM | New Technology LAN Manager
NTP | Network Time Protocol
OCSP | Online Certificate Status Protocol
OID | Object Identifier
OS | Operating System
OSI | Open Systems Interconnection
OSINT | Open-source Intelligence
OSPF | Open Shortest Path First
OT | Operational Technology
OTA | Over-The-Air
OTG | On-The-Go
OVAL | Open Vulnerability and Assessment Language
OWASP | Open Web Application Security Project
P12 | PKCS #12
P2P | Peer-to-Peer
PaaS | Platform as a Service
PAC | Proxy Auto Configuration
PAM | Privileged Access Management
PAM | Pluggable Authentication Modules
PAP | Password Authentication Protocol
PAT | Port Address Translation
PBKDF2 | Password-based Key Derivation Function 2
PBX | Private Branch Exchange
PCAP | Packet Capture
PCI DSS | Payment Card Industry Data Security Standard
PDU | Power Distribution Unit
PE | Portable Executable
PEAP | Protected Extensible Authentication Protocol
PED | Portable Electronic Device
PEM | Privacy Enhanced Mail
PFS | Perfect Forward Secrecy
PGP | Pretty Good Privacy
PHI | Personal Health Information
PII | Personally Identifiable Information
PIN | Personal Identification Number
PIV | Personal Identity Verification
PKCS | Public Key Cryptography Standards
PKI | Public Key Infrastructure
PoC | Proof of Concept
POP | Post Office Protocol
POTS | Plain Old Telephone Service
PPP | Point-to-Point Protocol
PPTP | Point-to-Point Tunneling Protocol
PSK | Preshared Key
PTZ | Pan-Tilt-Zoom
PUP | Potentially Unwanted Program
QA | Quality Assurance
QoS | Quality of Service
RA | Registration Authority
RAD | Rapid Application Development
RADIUS | Remote Authentication Dial-in User Service
RAID | Redundant Array of Inexpensive Disks
RAM | Random Access Memory
RAS | Remote Access Server
RAT | Remote Access Trojan
RC4 | Rivest Cipher version 4
RCS | Rich Communication Services
RFC | Request for Comments
RFID | Radio Frequency Identification
RIPEMD | RACE Integrity Primitives Evaluation Message Digest
ROI | Return on Investment
RPO | Recovery Point Objective
RSA | Rivest, Shamir, & Adleman
RTBH | Remotely Triggered Black Hole
RTO | Recovery Time Objective
RTOS | Real-time Operating System
RTP | Real-time Transport Protocol
S/MIME | Secure/Multipurpose Internet Mail Extensions
SaaS | Software as a Service
SAE | Simultaneous Authentication of Equals
SAML | Security Assertions Markup Language
SCADA | Supervisory Control and Data Acquisition
SCAP | Security Content Automation Protocol
SCEP | Simple Certificate Enrollment Protocol
SDK | Software Development Kit
SDLC | Software Development Life Cycle
SDLM | Software Development Life-cycle Methodology
SDN | Software-defined Networking
SDP | Service Delivery Platform
SDV | Software-defined Visibility
SED | Self-Encrypting Drives
SEH | Structured Exception Handling
SFTP | SSH File Transfer Protocol
SHA | Secure Hashing Algorithm
SIEM | Security Information and Event Management
SIM | Subscriber Identity Module
SIP | Session Initiation Protocol
SLA | Service-level Agreement
SLE | Single Loss Expectancy
SMB | Server Message Block
SMS | Short Message Service
SMTP | Simple Mail Transfer Protocol
SMTPS | Simple Mail Transfer Protocol Secure
SNMP | Simple Network Management Protocol
SOAP | Simple Object Access Protocol
SOAR | Security Orchestration, Automation, Response
SoC | System on Chip
SOC | Security Operations Center
SPF | Sender Policy Framework
SPIM | Spam over Instant Messaging
SQL | Structured Query Language
SQLi | SQL Injection
SRTP | Secure Real-time Transport Protocol
SSD | Solid State Drive
SSH | Secure Shell
SSID | Service Set Identifier
SSL | Secure Sockets Layer
SSO | Single Sign-on
STIX | Structured Threat Information eXpression
STP | Shielded Twisted Pair
SWG | Secure Web Gateway
TACACS+ | Terminal Access Controller Access Control System
TAXII | Trusted Automated eXchange of Intelligence Information
TCP/IP | Transmission Control Protocol/Internet Protocol
TGT | Ticket Granting Ticket
TKIP | Temporal Key Integrity Protocol
TLS | Transport Layer Security
TOTP | Time-based One Time Password
TPM | Trusted Platform Module
TSIG | Transaction Signature
TTP | Tactics, Techniques, and Procedures
UAT | User Acceptance Testing
UDP | User Datagram Protocol
UEBA | User and Entity Behavior Analytics
UEFI | Unified Extensible Firmware Interface
UEM | Unified Endpoint Management
UPS | Uninterruptible Power Supply
URI | Uniform Resource Identifier
URL | Universal Resource Locator
USB | Universal Serial Bus
USB OTG | USB On-The-Go
UTM | Unified Threat Management
UTP | Unshielded Twisted Pair
VBA | Visual Basic for Applications
VDE | Virtual Desktop Environment
VDI | Virtual Desktop Infrastructure
VLAN | Virtual Local Area Network
VLSM | Variable-length Subnet Masking
VM | Virtual Machine
VoIP | Voice over IP
VPC | Virtual Private Cloud
VPN | Virtual Private Network
VTC | Video Teleconferencing
WAF | Web Application Firewall
WAP | Wireless Access Point
WEP | Wired Equivalent Privacy
WIDS | Wireless Intrusion Detection System
WIPS | Wireless Intrusion Prevention System
WORM | Write Once Read Many
WPA | WiFi Protected Access
WPS | WiFi Protected Setup
XaaS | Anything as a Service
XML | Extensible Markup Language
XOR | Exclusive OR
XSRF | Cross-site Request Forgery
XSS | Cross-site Scripting
You can practice for this exam with our CompTIA Security+ practice exams.
CompTIA Network+ Acronyms
AAAA | Authentication, Authorization, Accounting, Auditing
ACL | Access Control List
AES | Advanced Encryption Standard
AH | Authentication Header
AP | Access Point
APC | Angled Physical Contact
APIPA | Automatic Private Internet Protocol Addressing
ARP | Address Resolution Protocol
AUP | Acceptable Use Policy
BGP | Border Gateway Protocol
BNC | British Naval Connector/Bayonet Neill-Concelman
BYOD | Bring Your Own Device
CAM | Content Addressable Memory (table)
CAN | Campus Area Network
CDMA | Code Division Multiple Access
CIA | Confidentiality, Integrity, and Availability
CIDR | Classless Inter-Domain Routing
CLI | Command-Line Interface
CNAME | Canonical Name
CPU | Central Processing Unit
CRC | Cyclic Redundancy Check
CSMA/CA | Carrier-Sense Multiple Access with Collision Avoidance
CSMA/CD | Carrier-Sense Multiple Access with Collision Detection
CSU | Channel Service Unit
CVE | Common Vulnerabilities and Exposures
CWDM | Coarse Wavelength Division Multiplexing
DaaS | Desktop as a Service
dB | Decibel
DDoS | Distributed Denial-of-Service
DHCP | Dynamic Host Configuration Protocol
DLP | Data Loss Prevention
DNS | Domain Name System
DoS | Denial-of-Service
DSL | Digital Subscriber Line
DSU | Data Service Unit
DWDM | Dense Wavelength Division Multiplexing
EAP | Extensible Authentication Protocol
EIA | Electronic Industries Association
EIGRP | Enhanced Interior Gateway Routing Protocol
EIRP | Effective Isotropic Radiated Power
ESP | Encapsulating Security Payload
EUI | Extended Unique Identifier
FCoE | Fibre Channel over Ethernet
FHRP | First Hop Redundancy Protocol
FTP | File Transfer Protocol
GBIC | Gigabit Interface Converter
GRE | Generic Routing Encapsulation
GSM | Global System for Mobile Communications
HA | High Availability
HDMI | High-Definition Multimedia Interface
HTTP | Hypertext Transfer Protocol
HTTPS | Hypertext Transfer Protocol Secure
HVAC | Heating, Ventilation, and Air Conditioning
IaaS | Infrastructure as a Service
ICMP | Internet Control Message Protocol
ICS | Industrial Control System
IDF | Intermediate Distribution Frame
IDS | Intrusion Detection System
IGMP | Internet Group Management Protocol
IMAP | Internet Message Access Protocol
IoT | Internet of Things
IP | Internet Protocol
IPS | Intrusion Prevention System
IPSec | Internet Protocol Security
IPv4 | Internet Protocol version 4
IPv6 | Internet Protocol version 6
iSCSI | Internet Small Computer Systems Interface
ISP | Internet Service Provider
LACP | Link Aggregation Control Protocol
LAN | Local Area Network
LC | Local Connector
LDAP | Lightweight Directory Access Protocol
LDAPS | Lightweight Directory Access Protocol (over SSL)
LED | Light-Emitting Diode
LTE | Long-Term Evolution
MAC | Media Access Control/Medium Access Control
MAN | Metropolitan Area Network
MDF | Main Distribution Frame
MDIX | Medium Dependent Interface Crossover
mGRE | Multipoint Generic Routing Encapsulation
MIB | Management Information Base
MIMO | Multiple Input, Multiple Output
MU-MIMO | Multiuser – Multiple Input, Multiple Output
MOU | Memorandum of Understanding
MPLS | Multiprotocol Label Switching
MTBF | Mean Time Between Failure
MT-RJ | Mechanical Transfer – Registered Jack
MTTR | Mean Time to Repair
MTU | Maximum Transmission Unit
MX | Mail Exchange
NAC | Network Access Control
NAS | Network Attached Storage
NAT | Network Address Translation
NDA | Non-Disclosure Agreement
NFV | Network Function Virtualization
NGFW | Next-Generation Firewall
NIC | Network Interface Card
NS | Name Server
NTP | Network Time Protocol
OID | Object Identifier
OSI | Open Systems Interconnection
OSPF | Open Shortest Path First
OTDR | Optical Time Domain Reflectometer
PaaS | Platform as a Service
PAN | Personal Area Network
PAT | Port Address Translation
PDU | Power Distribution Unit
PoE | Power over Ethernet
POP3 | Post Office Protocol version 3
PSK | Pre-Shared Key
PTR | Pointer Record
QoS | Quality of Service
QSFP | Quad Small Form-factor Pluggable
RA | Router Advertisements
RADIUS | Remote Authentication Dial-In User Service
RAID | Redundant Array of Inexpensive (or Independent) Disks
RDP | Remote Desktop Protocol
RF | Radio Frequency
RFC | Request for Comment
RG | Radio Guide
RIP | Routing Internet Protocol
RJ | Registered Jack
RPO | Recovery Point Objective
RSSI | Received Signal Strength Indication
RTO | Recovery Time Objective
RTSP | Real Time Streaming Protocol
SaaS | Software as a Service
SAN | Storage Area Network
SC | Standard Connector/Subscriber Connector
SCADA | Supervisory Control and Data Acquisition
SDN | Software-Defined Network
SDWAN | Software-Defined WAN
A | SPELLED OUT
SFP | Small Form-factor Pluggable
SFTP | Secure File Transfer Protocol
SIEM | Security Information and Event Management
SIP | Session Initiation Protocol
SLA | Service Level Agreement
SLAAC | Stateless Address Auto-Configuration
SMB | Server Message Block
SMTP | Simple Mail Transfer Protocol
SNMP | Simple Network Management Protocol
SOA | Start of Authority
SOHO | Small Office Home Office
SQL | Structured Query Language
SRV | Service Record
SSD | Solid-State Drive
SSH | Secure Shell
SSID | Service Set Identifier
SSL | Secure Sockets Layer
SSO | Single Sign-On
ST | Straight Tip or Snap Twist
STP | Spanning Tree Protocol
SYSLOG | System Log
TACACS+ | Terminal Access Controller Access Control System Plus
TCP | Transmission Control Protocol
TFTP | Trivial File Transfer Protocol
TIA/EIA | Telecommunications Industry Association/Electronic Industries Alliance
TKIP | Temporal Key Integrity Protocol
TLS | Transport Layer Security
TTL | Time to Live
TX/RX | Transmit and Receive
UDP | User Datagram Protocol
UPC | Ultra-Physical Contact
UPS | Uninterruptible Power Supply
URL | Uniform Resource Locator
USB | Universal Serial Bus
UTP | Unshielded Twister Pair
VIP | Virtual IP
VLAN | Virtual Local Area Network
VM | Virtual Machine
VNC | Virtual Network Computing
vNIC | virtual Network Interface Card
VoIP | Voice over Internet Protocol
VPN | Virtual Private Network
VRRP | Virtual Router Redundancy Protocol
WAN | Wide Area Network
WAP | Wireless Access Point
WDM | Wavelength Division Multiplexing
WLAN | Wireless Local Area Network
WPA | WiFi Protected Access
You can practice for this exam with our CompTIA Network+ practice exams.
CompTIA ITF+ Acronyms
AC | Alternating Current
ACL | Access Control List
AES | Advanced Encryption Standard
AIO | All In One
APIPA | Automatic Private Internet Protocol Addressing
ARM | Advanced RISC Machines
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 Interference
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 Access 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 | Uninterruptible 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
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