View source for Acronyms used in the CISA Exam

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[[Category:GoldenDict]]  
{| class="wikitable"
|ASCII
| colspan="2" |American Standard Code for  Information Interchange
|-
|Bit
| colspan="2" |Binary digit
|-
|CASE
| colspan="2" |Computer-aided system  engineering
|-
|CCTV
| colspan="2" |Closed-circuit television
|-
|CPU
| colspan="2" |Central processing unit
|-
|DBA
| colspan="2" |Database administrator
|-
|DBMS
| colspan="2" |Database management system
|-
|EDI
| colspan="2" |Electronic data interchange
|-
|FTP
| colspan="2" |File Transfer Protocol
|-
|HTTP
| colspan="2" |Hypertext Transmission  Protocol
|-
|HTTPS
| colspan="2" |Secured Hypertext  Transmission Protocol
|-
|ID
| colspan="2" |Identification
|-
|IDS
| colspan="2" |Intrusion detection system
|-
|IP
| colspan="2" |Internet protocol
|-
|IS
| colspan="2" |Information systems
|-
|ISO
| colspan="2" |International Organization  for Standardization
|-
|IT
| colspan="2" |Information technology
|-
|LAN
| colspan="2" |Local area network
|-
|PBX
| colspan="2" |Private branch (business)  exchange
|-
|PC
| colspan="2" |Personal  computer/microcomputer
|-
|PCR
| colspan="2" |Program change request
|-
|PDA
| colspan="2" |Personal digital assistant
|-
|PERT
| colspan="2" |Program Evaluation Review  Technique
|-
|PIN
| colspan="2" |Personal identification  number
|-
|PKI
| colspan="2" |Public key infrastructure
|-
|RAID
| colspan="2" |Redundant Array of  Inexpensive Disks
|-
|RFID
| colspan="2" |Radio frequency  identification
|-
|SDLC
| colspan="2" |System development life  cycle
|-
|SSL
| colspan="2" |Secure Sockets Layer
|-
|TCP
| colspan="2" |Transmission Control  Protocol
|-
|UPS
| colspan="2" |Uninterruptible power  supply
|-
|VoIP
| colspan="2" |Voice-over Internet  Protocol
|-
|WAN
| colspan="2" |Wide area network
|-
| colspan="2" |'''Additional Acronyms'''
|
|-
|4GL
| colspan="2" |Fourth-generation language
|-
|ACID
| colspan="2" |Atomicity, consistency,  isolation and durability
|-
|ACL
| colspan="2" |Access control list
|-
|AES
| colspan="2" |Advanced Encryption  Standard
|-
|AH
| colspan="2" |Authentication header
|-
|AI
| colspan="2" |Artificial intelligence
|-
|AICPA
| colspan="2" |American Institute of  Certified Public Accountants
|-
|ALE
| colspan="2" |Annual loss expectancy
|-
|ALU
| colspan="2" |Arithmetic-logic unit
|-
|ANSI
| colspan="2" |American National Standards  Institute
|-
|API
| colspan="2" |Application programming  interface
|-
|ARP
| colspan="2" |Address Resolution Protocol
|-
|ASIC
| colspan="2" |Application-specific  integrated circuit
|-
|ATDM
| colspan="2" |Asynchronous time division  multiplexing
|-
|ATM
| colspan="2" |Asynchronous Transfer Mode  or automated teller machine
|-
|B-to-B
| colspan="2" |Business-to-business
|-
|B-to-C
| colspan="2" |Business-to-consumer
|-
|B-to-E
| colspan="2" |Business-to-employee
|-
|B-to-G
| colspan="2" |Business-to-government
|-
|BCI
| colspan="2" |Business Continuity  Institute
|-
|BCM
| colspan="2" |Business continuity  management
|-
|BCP
| colspan="2" |Business continuity  planning
|-
|BI
| colspan="2" |Business intelligence
|-
|BIA
| colspan="2" |Business impact analysis
|-
|BIMS
| colspan="2" |Biometric Information  Management and Security
|-
|BIOS
| colspan="2" |Basic Input/Output System
|-
|BIS
| colspan="2" |Bank for International  Settlements
|-
|BLP
| colspan="2" |Bypass label process
|-
|BNS
| colspan="2" |Backbone network services
|-
|BOM
| colspan="2" |Bill of materials
|-
|BOMP
| colspan="2" |Bill of materials processor
|-
|BPR
| colspan="2" |Business process  reengineering
|-
|BRP
| colspan="2" |Business recovery (or  resumption) plan
|-
|BSC
| colspan="2" |Balanced scorecard
|-
|CA
| colspan="2" |Certificate authority
|-
|CAAT
| colspan="2" |Computer-assisted audit  technique
|-
|CAD
| colspan="2" |Computer-assisted design
|-
|CAE
| colspan="2" |Computer-assisted  engineering
|-
|CAM
| colspan="2" |Computer-aided  manufacturing
|-
|CASE
| colspan="2" |Computer-aided software  engineering
|-
|CCK
| colspan="2" |Complimentary Code Keying
|-
|CCM
| colspan="2" |Constructive Cost Model
|-
|CD
| colspan="2" |Compact disk
|-
|CD-R
| colspan="2" |Compact disk-recordable
|-
|CD-RW
| colspan="2" |Compact disk-rewritable
|-
|CDDF
| colspan="2" |Call Data Distribution  Function
|-
|CDPD
| colspan="2" |Cellular Digital Packet  Data
|-
|CEO
| colspan="2" |Chief executive officer
|-
|CERT
| colspan="2" |Computer emergency response  team
|-
|CGI
| colspan="2" |Common gateway interface
|-
|CIAC
| colspan="2" |Computer Incident Advisory  Capability
|-
|CICA
| colspan="2" |Canadian Institute of  Chartered Accountants
|-
|CIM
| colspan="2" |Computer-integrated  manufacturing
|-
|CIO
| colspan="2" |Chief information officer
|-
|CIS
| colspan="2" |Continuous and intermittent  simulation
|-
|CISO
| colspan="2" |Chief information security  officer
|-
|CMDB
| colspan="2" |Configuration management  database
|-
|CMM
| colspan="2" |Capability Maturity Model
|-
|CMMI
| colspan="2" |Capability Maturity Model  Integration
|-
|CNC
| colspan="2" |Computerized Numeric  Control
|-
|COBIT
| colspan="2" |Control Objectives for  Information and related Technology
|-
|COCOMO2
| colspan="2" |Constructive Cost Model
|-
|CODASYL
| colspan="2" |Conference on Data Systems  Language
|-
|COM
| colspan="2" |Component Object Model
|-
|COM/DCOM
| colspan="2" |Component Object  Model/Distributed Component Object Model
|-
|COOP
| colspan="2" |Continuity of operations  plan
|-
|CORBA
| colspan="2" |Common Object Request  Broker Architecture
|-
|CoS
| colspan="2" |Class-of-service
|-
|COSO
| colspan="2" |Committee of Sponsoring  Organizations of the Treadway Commission
|-
|CPM
| colspan="2" |Critical Path Methodology
|-
|CPO
| colspan="2" |Chief privacy officer
|-
|CPS
| colspan="2" |Certification practice  statement
|-
|CRC
| colspan="2" |Cyclic redundancy check
|-
|CRL
| colspan="2" |Certificate revocation list
|-
|CRM
| colspan="2" |Customer relationship  management
|-
|CSA
| colspan="2" |Control self-assessment
|-
|CSF
| colspan="2" |Critical success factor
|-
|CSIRT
| colspan="2" |Computer security incident  response team
|-
|CSMA/CD
| colspan="2" |Carrier-sense Multiple  Access/Collision Detection
|-
|CSO
| colspan="2" |Chief security officer
|-
|CSU-DSU
| colspan="2" |Channel service  unit/digital service unit
|-
|DAC
| colspan="2" |Discretionary access  controls
|-
|DASD
| colspan="2" |Direct access storage  device
|-
|DAT
| colspan="2" |Digital audio tape
|-
|DCE
| colspan="2" |Data communications  equipment
|-
|DCE
| colspan="2" |Distributed computing  environment
|-
|DCOM
| colspan="2" |Distributed Component  Object Model (Microsoft)
|-
|DCT
| colspan="2" |Discrete Cosine Transform
|-
|DD/DS
| colspan="2" |Data dictionary/directory  system
|-
|DDL
| colspan="2" |Data Definition Language
|-
|DDN
| colspan="2" |Digital Divide Network
|-
|DDoS
| colspan="2" |Distributed denial of  service
|-
|DECT
| colspan="2" |Digital Enhanced Cordless  Telecommunications
|-
|DES
| colspan="2" |Data Encryption Standard
|-
|DFD
| colspan="2" |Data flow diagram
|-
|DHCP
| colspan="2" |Dynamic Host Configuration  Protocol
|-
|DID
| colspan="2" |Direct inward dial
|-
|DIP
| colspan="2" |Document image processing
|-
|DLL
| colspan="2" |Dynamic link library
|-
|DMS
| colspan="2" |Disk management system
|-
|DMZ
| colspan="2" |Demilitarized zone
|-
|DNS
| colspan="2" |Domain name server
|-
|DoS
| colspan="2" |Denial of service
|-
|DOSD
| colspan="2" |Data-oriented system  development
|-
|DRII
| colspan="2" |Disaster Recovery Institute  International
|-
|DRP
| colspan="2" |Disaster recovery planning
|-
|DSL
| colspan="2" |Digital subscriber lines
|-
|DSS
| colspan="2" |Decision support systems
|-
|DSSS
| colspan="2" |Direct-sequence spread  spectrum (DSSS)
|-
|DTE
| colspan="2" |Data terminal equipment
|-
|DTR
| colspan="2" |Data terminal ready
|-
|DVD
| colspan="2" |Digital video disc
|-
|DVD-HD
| colspan="2" |Digital video disc-high  definition/high density
|-
|DW
| colspan="2" |Data warehouse
|-
|EA
| colspan="2" |Enterprise architecture
|-
|EAC
| colspan="2" |Estimates at completion
|-
|EAI
| colspan="2" |Enterprise application  integration
|-
|EAM
| colspan="2" |Embedded audit module
|-
|EAP
| colspan="2" |Extensible Authentication  Protocol
|-
|EBCDIC
| colspan="2" |Extended Binary-coded for  Decimal Interchange Code
|-
|EC
| colspan="2" |Electronic commerce
|-
|ECC
| colspan="2" |Elliptical curve  cryptography
|-
|EDFA
| colspan="2" |Enterprise data flow  architecture
|-
|EER
| colspan="2" |Equal-error rate
|-
|EFT
| colspan="2" |Electronic funds transfer
|-
|EIGRP
| colspan="2" |Enhanced Interior Gateway  Routing Protocol
|-
|EJB
| colspan="2" |Enterprise java beans
|-
|EMI
| colspan="2" |Electromagnetic  interference
|-
|EMRT
| colspan="2" |Emergency response time
|-
|ERD
| colspan="2" |Entity relationship diagram
|-
|ERP
| colspan="2" |Enterprise resource  planning
|-
|ESP
| colspan="2" |Encapsulating security  payload
|-
|EVA
| colspan="2" |Earned value analysis
|-
|FAR
| colspan="2" |False-acceptance rate
|-
|FAT
| colspan="2" |File allocation table
|-
|FC
| colspan="2" |Fibre channels
|-
|FDDI
| colspan="2" |Fiber-Distributed Data  Interface
|-
|FDM
| colspan="2" |Frequency division  multiplexing
|-
|FEA
| colspan="2" |Federal enterprise  architecture
|-
|FEMA
| colspan="2" |Federal Emergency  Management Association (USA)
|-
|FER
| colspan="2" |Failure-to-enroll rate
|-
|FERC
| colspan="2" |Federal Energy Regulatory  Commission (USA)
|-
|FFIEC
| colspan="2" |Federal Financial  Institutions Examination Council (USA)
|-
|FFT
| colspan="2" |Fast Fourier Transform
|-
|FHSS
| colspan="2" |Frequency-hopping spread  spectrum
|-
|FIPS
| colspan="2" |Federal Information  Processing Standards
|-
|FP
| colspan="2" |Function point
|-
|FPA
| colspan="2" |Function point analysis
|-
|FRAD
| colspan="2" |Frame relay  assembler/disassembler
|-
|FRB
| colspan="2" |Federal Reserve Board (USA)
|-
|FRR
| colspan="2" |False-rejection rate
|-
|GAS
| colspan="2" |Generalized audit software
|-
|GB
| colspan="2" |Gigabyte
|-
|GID
| colspan="2" |Group ID
|-
|GIS
| colspan="2" |Geographic information  systems
|-
|GPS
| colspan="2" |Global position system
|-
|GSM
| colspan="2" |Global system for mobile  communications
|-
|GUI
| colspan="2" |Graphical user interface
|-
|HA
| colspan="2" |High availability
|-
|HD-DVD
| colspan="2" |High definition/high  density-digital video disc
|-
|HDLC
| colspan="2" |High-level data link  control
|-
|HIPAA
| colspan="2" |Health Insurance  Portability and Accountability Act (USA)
|-
|HIPO
| colspan="2" |Hierarchy  input-process-output
|-
|HTML
| colspan="2" |Hypertext Markup Language
|-
|HW/SW
| colspan="2" |Hardware/software
|-
|I/O
| colspan="2" |Input/output
|-
|I&A
| colspan="2" |Identification and  authentication
|-
|ICMP
| colspan="2" |Internet Control Message  Protocol
|-
|ICT
| colspan="2" |Information and  communication technologies
|-
|IDE
| colspan="2" |Integrated development  environment
|-
|IDEF1X
| colspan="2" |Integration Definition for  Information Modeling
|-
|IETF
| colspan="2" |Internet Engineering Task  Force
|-
|IPF
| colspan="2" |Information processing  facility
|-
|IPL
| colspan="2" |Initial program load
|-
|IPMA
| colspan="2" |International Project  Management Association
|-
|IPRs
| colspan="2" |Intellectual property  rights
|-
|IPS
| colspan="2" |Intrusion prevention system
|-
|IPSec
| colspan="2" |IP Security
|-
|IPX
| colspan="2" |Internetwork Packet  Exchange
|-
|IR
| colspan="2" |Incident response
|-
|IR
| colspan="2" |Infrared
|-
|IRC
| colspan="2" |Internet relay chat
|-
|IrDA
| colspan="2" |Infrared Data Association
|-
|IRM
| colspan="2" |Incident response  management
|-
|IS/ORP
| colspan="2" |IS disaster recovery  planning
|-
|ISAKMP/Oakley
| colspan="2" |Internet Security  Association and Key Management Protocol/Oakley
|-
|ISAM
| colspan="2" |Indexed Sequential Access  Method
|-
|ISDN
| colspan="2" |Integrated services digital  network
|-
|ISP
| colspan="2" |Internet service provider
|-
|ITF
| colspan="2" |Integrated test facility
|-
|ITGI
| colspan="2" |IT Governance Institute
|-
|ITIL
| colspan="2" |Information Technology  Infrastructure Library
|-
|ITSM
| colspan="2" |IT service management
|-
|ITT
| colspan="2" |Invitation to tender
|-
|ITU
| colspan="2" |International  Telecommunications Union
|-
|JIT
| colspan="2" |Just in time
|-
|Kb
| colspan="2" |Kilobit
|-
|KB
| colspan="2" |Kilobyte
|-
|KB
| colspan="2" |Knowledge base
|-
|KDSI
| colspan="2" |Thousand delivered source  instructions
|-
|KGI
| colspan="2" |Key goal indicator
|-
|KLOC
| colspan="2" |Kilo lines of code
|-
|KPI
| colspan="2" |Key performance indicator
|-
|L2TP
| colspan="2" |Layer 2 Tunneling Protocol
|-
|LCP
| colspan="2" |Link Control Protocol
|-
|M&A
| colspan="2" |Mergers and acquisition
|-
|MAC
| colspan="2" |Mandatory Access Control
|-
|MAC address
| colspan="2" |Media Access Control  address
|-
|MAN
| colspan="2" |Metropolitan area network
|-
|MAP
| colspan="2" |Manufacturing accounting  and production
|-
|MIS
| colspan="2" |Management information  system
|-
|MODEM
| colspan="2" |Modulator/demodulator
|-
|MOS
| colspan="2" |Maintenance out of service
|-
|MPLS
| colspan="2" |Multiprotocol label  switching
|-
|MRP
| colspan="2" |Manufacturing resources  planning
|-
|MSAUs
| colspan="2" |Multistation access units
|-
|MTBF
| colspan="2" |Mean time between failures
|-
|MTS
| colspan="2" |Microsoft’s Transaction  Server
|-
|MTTR
| colspan="2" |Mean time to repair
|-
|NAP
| colspan="2" |Network access point
|-
|NAS
| colspan="2" |Network access server or  Network attached storage
|-
|NAT
| colspan="2" |Network address translation
|-
|NCP
| colspan="2" |Network Control Protocol
|-
|NDA
| colspan="2" |Nondisclosure agreement
|-
|NFPA
| colspan="2" |National Fire Protection  Agency (USA)
|-
|NFS
| colspan="2" |Network file system
|-
|NIC
| colspan="2" |Network interface card
|-
|NIST
| colspan="2" |National Institute of  Standards and Technology (USA)
|-
|NNTP
| colspan="2" |Network News Transfer  Protocol
|-
|NSP
| colspan="2" |Name Server Protocol or  Network service provider
|-
|NT
| colspan="2" |New technology
|-
|NTFS
| colspan="2" |NT file system
|-
|NTP
| colspan="2" |Network Time Protocol
|-
|OBS
| colspan="2" |Object Breakdown Structure
|-
|OCSP
| colspan="2" |Online Certificate Status  Protocol
|-
|OECD
| colspan="2" |Organization for Economic  Cooperation and Development
|-
|OEP
| colspan="2" |Occupant emergency plan
|-
|OFDM
| colspan="2" |Orthogonal frequency  division multiplexing
|-
|OLAP
| colspan="2" |Online analytical  processing
|-
|OO
| colspan="2" |Object-oriented
|-
|OOSD
| colspan="2" |Object-oriented system  development
|-
|ORB
| colspan="2" |Object request broker (ORB)
|-
|OS
| colspan="2" |Operating system
|-
|OSI
| colspan="2" |Open Systems  Interconnection
|-
|OSPF
| colspan="2" |Open Shortest Path First
|-
|PAD
| colspan="2" |Packet  assembler/disassembler
|-
|PAN
| colspan="2" |Personal area network
|-
|PBX
| colspan="2" |Private branch exchange
|-
|PDCA
| colspan="2" |Plan-Do-Check-Act
|-
|PDN
| colspan="2" |Public data network
|-
|PER
| colspan="2" |Package-enabled  reengineering
|-
|PHY
| colspan="2" |Physical layer
|-
|PICS
| colspan="2" |Platform for Internet  content selection
|-
|PID
| colspan="2" |Process ID
|-
|PID
| colspan="2" |Project Initiation Document
|-
|PMBOK
| colspan="2" |Project Management Body of  Knowledge
|-
|PMI
| colspan="2" |Project Management  Institute
|-
|POC
| colspan="2" |Proof of concept
|-
|POP
| colspan="2" |Proof of possession
|-
|POS
| colspan="2" |Point of sale or  Point-of-sale systems
|-
|POTS
| colspan="2" |Plain old telephone service
|-
|PPP
| colspan="2" |Point-to-point Protocol
|-
|PPPoE
| colspan="2" |Point-to-point Protocol  Over Ethernet
|-
|PPTP
| colspan="2" |Point-to-Point Tunneling  Protocol
|-
|PR
| colspan="2" |Public relations
|-
|PRD
| colspan="2" |Project request document
|-
|PRINCE2
| colspan="2" |Projects in Controlled  Environments 2
|-
|PROM
| colspan="2" |Programmable Read-Only  Memory
|-
|PSTN
| colspan="2" |Public switched telephone  network
|-
|PVC
| colspan="2" |Permanent virtual circuit
|-
|QA
| colspan="2" |Quality assurance
|-
|QAT
| colspan="2" |Quality assurance testing
|-
|RA
| colspan="2" |Registration authority
|-
|RAD
| colspan="2" |Rapid application  development
|-
|RADIUS
| colspan="2" |Remote Access Dial-in User  Service
|-
|RAID
| colspan="2" |Redundant Array of  Inexpensive Disks
|-
|RAM
| colspan="2" |Random access memory
|-
|RAS
| colspan="2" |Remote access service
|-
|RBAC
| colspan="2" |Role-based access control
|-
|RDBMS
| colspan="2" |Relational database  management system
|-
|RF
| colspan="2" |Radio frequency
|-
|RFI
| colspan="2" |Request for information
|-
|RFP
| colspan="2" |Request for proposal
|-
|RIP
| colspan="2" |Routing Information  Protocol
|-
|RMI
| colspan="2" |Remote method invocation
|-
|ROI
| colspan="2" |Return on investment
|-
|ROLAP
| colspan="2" |Relational online  analytical processing
|-
|ROM
| colspan="2" |Read-only memory
|-
|RPC
| colspan="2" |Remote procedure call
|-
|RPO
| colspan="2" |Recovery point objective
|-
|RST
| colspan="2" |Reset
|-
|RTO
| colspan="2" |Recovery time objective
|-
|RW
| colspan="2" |Rewritable
|-
|S/HTTP
| colspan="2" |Secure Hypertext Transfer  Protocol
|-
|S/MIME
| colspan="2" |Secure Multipurpose  Internet Mail Extensions
|-
|SA
| colspan="2" |Security Association
|-
|SAN
| colspan="2" |Storage area network
|-
|SANS
| colspan="2" |The SANS Institute
|-
|SAS
| colspan="2" |Statement on Auditing  Standards
|-
|SBC
| colspan="2" |Session border controller
|-
|SCADA
| colspan="2" |Supervisory Control and  Data Acquisition
|-
|SCARF
| colspan="2" |Systems Control Audit  Review File
|-
|SCARF/EAM
| colspan="2" |Systems Control Audit  Review File and Embedded Audit Modules
|-
|SCM
| colspan="2" |Supply Chain Management
|-
|SCOR
| colspan="2" |Supply Chain Operations  Reference
|-
|SD/MMC
| colspan="2" |Secure digital multimedia  card
|-
|SDLC
| colspan="2" |System development life  cycle
|-
|SDO
| colspan="2" |Service delivery objective
|-
|SEC
| colspan="2" |Securities and Exchange  Commission (USA)
|-
|SET
| colspan="2" |Secure electronic  transactions
|-
|SLA
| colspan="2" |Service level agreement
|-
|SLIP
| colspan="2" |Serial Line Internet  Protocol
|-
|SLM
| colspan="2" |Service level management
|-
|SLOC
| colspan="2" |Source lines of code
|-
|SMART
| colspan="2" |Specific, measurable,  achievable, relevant, time-bound
|-
|SME
| colspan="2" |Subject matter expert
|-
|SMF
| colspan="2" |System management facility
|-
|SMTP
| colspan="2" |Simple Mail Transport  Protocol
|-
|SNA
| colspan="2" |Systems network  architecture
|-
|SNMP
| colspan="2" |Simple Network Management  Protocol
|-
|SO
| colspan="2" |Security officer
|-
|SOA
| colspan="2" |Service-oriented  architecture
|-
|SOAP
| colspan="2" |Simple Object Access  Protocol
|-
|SOHO
| colspan="2" |Small office-home office
|-
|SPI
| colspan="2" |Security parameter index
|-
|SPICE
| colspan="2" |Software Process  Improvement and Capability Determination
|-
|SPOC
| colspan="2" |Single point of contact
|-
|SPOOL
| colspan="2" |Simultaneous peripheral  operations online
|-
|SQL
| colspan="2" |Structured Query Language
|-
|SSH
| colspan="2" |Secure Shell
|-
|SSID
| colspan="2" |Set services identifiers
|-
|SSO
| colspan="2" |Single sign-on
|-
|SVC
| colspan="2" |Switched virtual circuits
|-
|SYSGEN
| colspan="2" |System generation
|-
|TACACS
| colspan="2" |Terminal Access Control  Access Control System
|-
|TCO
| colspan="2" |Total cost of ownership
|-
|TCP/IP
| colspan="2" |Transmission Control  Protocol/Internet Protocol
|-
|TCP/UDP
| colspan="2" |Transmission Control  Protocol/User Datagram Protocol
|-
|TDM
| colspan="2" |Time-division multiplexing
|-
|TELNET
| colspan="2" |Teletype network
|-
|TES
| colspan="2" |Terminal emulation software
|-
|TFTP
| colspan="2" |Trivial File Transport  Protocol
|-
|TKIP
| colspan="2" |Temporal Key Integrity  Protocol
|-
|TLS
| colspan="2" |Transport layer security
|-
|TMS
| colspan="2" |Tape management system
|-
|TP monitors
| colspan="2" |Transaction processing (TP)  monitors
|-
|TQM
| colspan="2" |Total quality management
|-
|TR
| colspan="2" |Technical report
|-
|UAT
| colspan="2" |User acceptance testing
|-
|UBE
| colspan="2" |Unsolicited bulk e-mail
|-
|UDDI
| colspan="2" |Description, discovery and  integration
|-
|UDP
| colspan="2" |User Datagram Protocol
|-
|UID
| colspan="2" |User ID
|-
|UML
| colspan="2" |Unified Modeling Language
|-
|URI
| colspan="2" |Uniform resource identifier
|-
|URL
| colspan="2" |Universal resource locator
|-
|URN
| colspan="2" |Uniform resource name
|-
|USB
| colspan="2" |Universal Serial Bus
|-
|VLAN
| colspan="2" |Virtual local area network
|-
|VoIP
| colspan="2" |Voice-Over IP
|-
|VPN
| colspan="2" |Virtual private network
|-
|WAP
| colspan="2" |Wireless Application  Protocol
|-
|WBS
| colspan="2" |Work breakdown structure
|-
|WEP
| colspan="2" |Wired Equivalent Privacy
|-
|WLAN
| colspan="2" |Wireless local area network
|-
|WML
| colspan="2" |Wireless Markup Language
|-
|WORM
| colspan="2" |Write-once and read many
|-
|WP
| colspan="2" |Work packages
|-
|WPA
| colspan="2" |Wi-Fi Protected Access
|-
|WPAN
| colspan="2" |Wireless personal area  network
|-
|WSDL
| colspan="2" |Web Services Description  Language
|-
|WWAN
| colspan="2" |Wireless wide area network
|-
|WWW
| colspan="2" |World Wide Web
|-
|X-to-X
| colspan="2" |Exchange-to-Exchange
|-
|XBRL
| colspan="2" |Extensible Business  Reporting Language
|-
|XML
| colspan="2" |Extensible Markup Language
|-
|Xquery
| colspan="2" |XML query
|-
|XSL
| colspan="2" |Extensible Stylesheet  Language
|}


[[Category:CISA exam]]
[[Category:DSL]]
[[Category:Abbreviations]]
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