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Security+ Acronym List

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Security+ Acronym List

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Security+ Acronyms In Flashcard Format


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3DES Triple Data Encryption Standard


ACL Access Control List

AD Active Directory

AD-IDS Anomaly Detection Intrusion Detection System

AES Advanced Encryption Standard

AFS Apple File Sharing

AH Authentication Header

ALE Annual Loss Expectancy

APIs Application Program Interfaces

[edit section] Acknowledgements & Credits

quinntessential APIPA Automatic Private Internet Protocol Addressing

ARO Annualized Rate of Occurrence

ARP Address Resolution Protocol

ASR Automated System Recovery


BCP Business Continuity Plan

BGP Border Gateway Protocol

BIA Business Impact Analysis


CA Certificate Authority

CAST Carlisle Adams Stafford Tavares

CBF Critical Business Functions

CC Common Criteria

CD-R Compact Disk Recordable

CEI Computer Ethics Institute

CESA Cyberspace Electronic Security Act

CFO Chief Financial Officer

CGI Common Gateway Interface

CHAP Challenge Handshake Authentication Protocol

CMP Certificate Management Protocols

CN Canonical Name

CO Central Office

CPS Certificate Practice Statement

CPSR Computer Professionals of Social Responsibility

CRL Certificate Revocation List

CSIRT Computer Security Incident Response Team

CSS Central Security Service


DAC Discretionary Access Control

DDoS Distributed Denial of Service

DES Data Encryption Standard

DFS Distributed File System

DHCP Dynamic Host Configuration Protocol

DMZ Demilitarized Zone

DN Distinguished Name

DNS Domain Name Service

DoS Denial of Service

DRP Disaster Recovery Plan

DSA Digital Signature Algorithm

DSL Digital Subscriber Line

DSSS Direct Sequence Spread Spectrum


EAL Evaluation Assurance Level

ECC Elliptic Curve Cryptography

EIGRP Enhanced Interior Gateway Routing Protocol

EM Emergency Management

EMI Electromagnetic Interference

ESP Encapsulating Security Payload

EULA End User License Agreement


FAT File Allocation Table

FERPA Family Educational Rights and Privacy Act

FHSS Frequency Hopping Spread Spectrum

FIPS Federal Information Processing Standard

FTP File Transfer Protocol


GFS Grandfather Father Son

GSM Global System for Mobile Communications

GUID Globally Unique Identifier


H-IDS Host-based Intrusion Detection System

HIPAA Health Insurance Portability and Accountability

HR Human Resources

HTML Hyper Text Markup Language

HTTP Hyper Text Transfer Protocol

HTTPS Hyper Text Transfer Protocol Secure


I&A Identification and Authentication

IANA Internet Assigned Numbers Authority

ICMP Internet Control Message Protocol

ID Intrusion Detection

IDEA International Data Encryption Algorithm

IDS Intrusion Detection System

IEEE Institute of Electrical and Electronics Engineers

IETF Internet Engineering Task Force

IGMP Internet Group Management Protocol

IGRP Interior Gateway Routing Protocol

IIS Internet Information Server

IM Instant Messaging

IMAP Internet Message Access Protocol

IP Internet Protocol

IPSec Internet Protocol Security

IPX/SPX Internetwork Packet Exchange / Sequenced Packet Exchange

IR Infrared

IRP Incident Response Plan

IS Information Systems

ISDN Integrated Systems Digital Network

ISN Initial Sequence Number

ISO International Organization for Standardization

ISP Internet Service Provider

ITU International Telecommunications Union


JFS Journaled File System


KDC Key Distribution Center

KEA Key Exchange Algorithm


L2F Layer Two Forwarding

L2TP Layer Two Tunneling Protocol

LCP Link Control Protocol

LDAP Lightweight Data Access Protocol

LRA Local Registration Authority


MAC Mandatory Access Control

MAC Media Access Control

MAC Message Authentication Code

MDA Message Digest Algorithm

MD-IDS Misuse Detection Intrusion Detection System

MIME Multipurpose Internet Mail Extensions

MOV Metal Oxide Varistor

MS-CHAP Microsoft Challenge Handshake Authentication Protocol

MSSP Managed Security Service Provider

MTBF Mean Time Before Failure

MTTR Mean Time To Repair


NAT Network Address Translation

NCP Network Control Protocol

NDA Nondisclosure Agreement

NDS Netware/Novell Directory Services

NetBEUI Network Basic Input Output System Extended User Interface

NetBIOS Network Basic Input Output System

NFS Network File System

NIC Network Interface Card

N-IDS Network-based Intrusion Detection System

NIST National Institute of Standards and Technology

NLM Netware Loadable Modules

NNTP Network News Transfer Protocol

NOC Network Operations Center

NOS Network Operating System

NSS Netware Storage Service

NTFS New Technology File System


OCSP Online Certificate Status Protocol

OES Open Enterprise Server

OFDM Orthogonal Frequency Division Multiplexing

OS Operating System

OSPF Open Shortest Path First

OU Organizational Unit


PAP Password Authentication Protocol

PBX Private Branch Exchange

PDA Personnel Digital Assistant

PGP Pretty Good Privacy

PKC Public Key Cryptography

PKCS Public Key Cryptography Standards

PKI Public Key Infrastructure

PKIX Public Key Infrastructure X.509

POP Post Office Protocol

POTS Plain Old Telephone Service

PPP Point to Point Protocol

PPTP Point to Point Tunneling Protocol



RA Registration Authority

RAS Remote Access Services

RADIUS Remote Authentication Dial-In User Service

RAID Redundant Array of Independent/Inexpensive Disks

RBAC Role-Based Access Control

RC Ron’s Code OR Rivest’s Cipher

RDN Relative Distinguished Name

RF Radio Frequency

RFC Request For Comments

RFI Radio Frequency Interference

RIP Routing Information Protocol

RPC Remote Procedure Call

RRAS Routing and Remote Access Services

RSA Rivest Shamir Adleman

RSH Remote Shell


SAINT Security Administrator’s Integrated Network Tool

SEI Software Engineering Institute

SET Secure Electronic Transfer

SHA Secure Hash Algorithm

S-HTTP Secure Hypertext Transport Protocol

SIM Subscriber Identification Model

SLA Service Level Agreement

SLE Single Loss Expectancy

SLIP Serial Line Internet Protocol

S/MIME Secure Multipurpose Internet Mail Extensions

SMS Systems Management Server

SMTP Simple Mail Transfer Protocol

SNMP Simple Network Management Protocol

SPX Sequenced Packet Exchange

SQL Structured Query Language

SSH Secure Shell

SSID Service Set Identifier

SSL Secure Socket Layer

SSO Single Sign On

STP Shielded Twisted Pair


TACACS Terminal Access Controller Access Controller System

TCP/IP Transmission Control Protocol / Internet Protocol

TCSEC Trusted Computer Systems Evaluation Criteria

TFTP Trivial File Transfer Protocol

TLS Transport Layer Security


UDP User Datagram Protocol

UPN User Principal Name

UPS Uninterruptible Power Supply

USA PATRIOT Uniting and Strengthening America by Providing Appropriate Tools Required and Obstruct Terrorism

UTP Unshielded Twisted Pair

UV Ultraviolet


VLAN Virtual Local Area Network

VNC Virtual Network Computing

VoIP Voice over Internet Protocol

VPN Virtual Private Network


W3C World Wide Web Consortium

WAP Wireless Access Point

WAP Wireless Application Protocol

WAN Wide Area Networks

WDP Wireless Datagram Protocol

WEP Wired Equivalent Privacy

WINS Windows Internet Naming Service

WML Wireless Markup Language

WSP Wireless Session Protocol

WTLS Wireless Transport Layer Security

WTP Wireless Transaction Protocol

WWW World Wide Web


XKMS eXtensible Markup Language Key Management Specifications

XML eXtensible Markup Language



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