Shared Flashcard Set

Details

Comptia A+ 220-901 Acronyms
Acronym with description
134
Other
Professional
10/20/2016

Additional Other Flashcards

 


 

Cards

Term
ACL
Definition
Access Control list. A set of data that is used to control access to a resource.
Term
AES
Definition
Advanced Encryption Standard. A symmetric 128, 192, 256 bit block cipher.
Term
AIO MFD
Definition
All In One Multi-function device. A small sized MFD with basic printing, scanning, and copy capabilities.
Term
AP
Definition
Access Point. A device or software that facilitates communication and provides enhanced security to wireless devices.
Term
APIPA
Definition
Automatic Private IP Addressing. Enables a DHCP client computer to configure itself automatically with a random IP address in the 169.255.0.1 to 169.254.255.254 if there is no DHCP server available.
Term
ARP
Definition
Address Resolution Protocol. A protocol that maps IP addresses to MAC addresses.
Term
AUB
Definition

Acceptable use policy.  A policy that includes the practices and guidelines that should be followed by employees when using and accessing company resources.


Term
BIOS
Definition
Basic Input Output System. Set of instructions that is stored in ROM and that is used to start the most basic services of a computer system.
Term
BSOD
Definition
Blue screen of Death.  A system error severe enough to stop all processes and shut down the operating system without warning.
Term
BYOD
Definition
Bring Your Own Device.  An Organizational policy that enables employees to use their personal devices for work purposes.
Term
CCFL
Definition
Cold cathode flourescent lamp.  A light source that uses electrodes and mercury vapor to create ultraviolet light.
Term
CDFS
Definition
Compact Disc Flie System.  A file system standard for optical disc media that is suported by miltiple operating system types.
Term
CIDR
Definition
Classless Inter Domain Routing. A subnetting method that selects a subnet mask that meets an individual network's networking and node requirements and then treats the mask like a 32-bit binary word.
Term
CIFS
Definition
Common Internet File System.  A file and resource sharing protocol that is related to SMB.
Term
CLI
Definition
Command Line Interface. A text based interface for an operating system.
Term
CMOS
Definition
Complementary Metal-Oxide-Semiconductor.  An old style of stsatic memory that was used to store information about the computer setup that the system BIOS refers to each time the computer is started.
Term
COPE
Definition
Corporate Owned, Personally Enabled.  An organizational policy that enables employees to use company owned devices for personal use.
Term
CPU
Definition
Central Processing Unit.  The main chip on the system board, the CPU performs sofware instructions and mathematical and logical calculations.  AKA microprocessor or processor.
Term
DHCP
Definition
Dynamic Host Configuration Protocol.  A network service that provides automatic assignment of IP addresses and other TCP/IP configuration information on network systems that are configured as DHCP clients.
Term
DIMM
Definition
Dual in-line Memory Modules. A RAM form factor that is found in most systems and that has a 64-bit data path.
Term
DLP
Definition
Data Loss Prevention. Software or a software suite that helps protect data from being stolen while the data is moving across the network.
Term
DMZ
Definition
Delmilitarized Zone.  A small section of a private network that is located between two firewalls and made available for public use.
Term
DNS
Definition
Domain Name System.  The primary name resolution service on the network that maps computer names to their associated IP addresses.
Term
DPI
Definition
Dots per inch.  A measure of the ink density in a printed document.  Higher DPI measure tend to provide clearer and more distinct output.
Term
DRM
Definition
Digital Rights Management.  A way to control access to copyrighted content that is presented in digital format.
Term
DSL
Definition
Digital Subscriber Line. A broadband technology that transmits digital signals over existing phone lines.
Term
DVI
Definition
Digital Video Interface.  A video standard for transferring both analog and digital video signals.
Term
EAS
Definition
Exchange ActiveSync.  Microsoft's synchronization protocol that enables mobile devices to connect to an Exchange Server to access mail, calendar, and contacts.
Term
ECC
Definition
Error Correction Code.  An error correction method that uses several bits for error checking.
Term
EEPROM
Definition
Electronically Erasable Programmable Read Only Memory. A ROM chip that can be reprogrammed by using software from the BIOS or chip manufacturer through the flashing process.
Term
EFS
Definition
Encrypting File System.  A file encryption tool available on Windows systems that have partitions formatted with NTFS.
Term
EIA
Definition
Electronic Industries Alliance.  A standards and trades organization that developed industry standards for technologies such as network cabling, ceased operation in Feb 2011.
Term
EMI
Definition
Electromagnetic Interference.  The degradation of signal that occurs when a magnetic field around one electrical curcuit interferes with the signal being carried on an adjacent circuit.
Term
EMMC
Definition
Embedded Multi-Media Controller.  A storage component that contains flash memory and a flash memory controller integrated onto the same silicon die.
Term
ERD
Definition
Emergency Repair Disk. A windows XP troubleshooting tool that stores the contents of \WINDOWS\REPAIR FOLDER.
Term
ESD
Definition
ELectrostatic Discharge.  The phenomenon that occurs when electrons rush from one body with static electrical charge to another with an unequal charge, following the path of least resistance.
Term
FC
Definition
Face contact.  Connectors that use a heavy duty ferrule in the center for more mechanical stability than SMA or ST connectors.
Term
GAN
Definition
Global Area Network.  any worldwide network.
Term
GPRS
Definition
General Packet Radio Service.  A standard for wireless communications that runs at speeds up to 115 kbps and that supports a wide range of bandwidths.
Term
GPU
Definition
Graphics Processing Unit. An electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images intended for display output.
Term
GUI
Definition
Graphics User Interface.  A collection of icons, windows, and other screen elements that help users interact with an operating system.
Term
HDD
Definition
Hard Disk Drive.  A personal computer storage device that uses fixed media and magnetic data storage.
Term
IANA
Definition
Internet Assigned Numbers Authority.  Aninternational agency that manages port assignments.
Term
IEEE
Definition
Institute of Electrical and Electronic Engineers.  An organization of scientists, engineers, and students of electronics and related fields whose technical and standards commirrees develop, publish, and revise computing and telecommunications standards.
Term
HDMI
Definition
High Definition Multimedia Interface.  Apropriety audio/video intergace for transferring uncompressed video data and compressed or uncompresseed digital audio data from a display controller to a compatible periperal device over a single HDMI cable.
Term
HTPC
Definition
Home Theater PC.  A computer that is dedicated and configured to store and stream digital movies, either from the local HDD or through an online subscription such as Netflix.
Term
IMAP4
Definition
Internet Mail Access Protocol 4.  A protocol used to retrieve email messages and folders from a mail server.
Term
IMEI Number
Definition
International Mobile Equipment Identity Number.  A number that uniquely identifies a mobile device.
Term
IMSI
Definition
International Mobile Subscriber Identity.  A number that uniquely identifies a mobile subscriber.
Term
IP
Definition
Internet Protocol.  A group of rules for sending data across a network.  Communication is based on the IP protocol.
Term
IPS
Definition
In-Plane SwitchingAn LCD panel technology designed to resolve the quality issues inherent in TN panel technology, including stong angle dependence and low-quality color reproduction.
Term
IR
Definition
Infrared.  A form of wireless transmission in which signals are sent via pulses of infrared light.
Term
ISP
Definition
Internet Service Provider.  A company that provides internet access.
Term
JFS
Definition
A 64-bit journaling file system that is fast and reliable.
Term
LAN
Definition
Local Area Network.  A self-contained network that spans a small area, such as a single building, floor, or room.
Term
KVM Switch
Definition
Keyboard, Video, Mouse.  A device that allows a computer user to control multiple computers with a single keyboard and mouse, with the display sent to a single monitor.
Term
LC
Definition
Local Connector.  Asmall form factor ceramic ferrule connector for both single-mode and multimode fiber.
Term
LCD
Definition
Liquid Crystal Display.  A type of flat-panel display that uses Cold Cathode Floutescent Lamps as the source of backlighting and that comes in large-screen sizes of 17 inches and more, with high screen resolution and high color depth.
Term
LDAP
Definition
Lightweight Directory Access Protocol.  A communications protocol that defines how a client can access infromation, perform operations, and share directory data on a directory server.
Term
LOS
Definition
Line of Sight.  Wireless signals that travel over a direct visual path from a transmitter to a reciever.
Term
LTFS
Definition
Linear Tape File Systems.  An IBM specificaton that enable data stored on magnetic tapes to be accessed in a file format.
Term
MAC Address
Definition
Media Access Controll Address.  Same as the physical address.
Term
MAN
Definition
Metropolitan Area Network.  A network that covers an area equivalent to a city or other municipality.
Term
MBR
Definition
Master Boot Record.  The first sector of a partitioned storage device, used for booting the computer and often a target of malware.
Term
MFD
Definition
Multi-function device.  A piece of office equipment that performs the functions of a number of other devices (3in1 Print, copy, scan).
Term
MSDS
Definition
Material Safety Data Sheet.  A technical bulletin desined to give users and emergency personnel information about the proper procedures of storage handling of a hazardous substance.
Term
MT-RJ
Definition
Mechanical Transfer Jack.  AKA Fiber Jack connector, compact snap-to-lock connector used with multi-mode fiber.
Term
NAT
Definition
Network Address Translation.  A simple form of Internet connection and security that conceals internal addressing schemes from the public Internet.
Term
NFC
Definition
Near Field Communications.  A wireless communication method that enables wireless devices to establish radio communications by touching them together or by bringing them into close proximity with each other, typically 10cm or less.
Term
NIC
Definition
Network Interface Card.  An expansion card that enable a PC to connect to a LAN.  AKA Network Adapter.
Term
OLED
Definition
Organic Light emitting Diode.  A type of LED flat panel display device that uses organic compounds that emit light when subjected to an electric current.
Term
PAN
Definition
Private Area Network.  A network of devices used by a single individual.
Term
PCI
Definition
Peripheral Component Interconnect.  Provides high speed data path between the CPU and peripheral devices. AKA PCI bus.
Term
PII
Definition
Personally Identifiable Information.  Any information that can be used by itself or in combination with addition information as a way to id, contact, or find a single person.
Term
PoE
Definition
Power Over Ethernet.  An emerging technology standard that enable both power and data to be transmitted over an Ethernet cable.
Term
POP3
Definition
Post Office Protocol version 3.  A protocol used to retrive email from a mailbox on the mail server.
Term
POST
Definition
Power On Self Test.  A built-in diagnostic program that is run every time a PC starts up.
Term
PRI
Definition
Preferred Roaming Index.  An index that works with the PRL to provide the best data/voice quality to a phone while roaming.
Term
PRL
Definition
Preferred Roaming List.  A database built by CDMA service carriers to indicate which radio bands should be used when connecting to a cell tower.
Term
PSTN
Definition
Pubilc Switched Telephone Network.  An international telephone system that carries analog voice data.
Term
PVC
Definition
Polyvinyl chloride.  A flexible rubber-like plastic used to surround some twisted pair cabling.  When burned gives off noxious gas, cannot use in walls and ceiling.
Term
QoS
Definition
Quality of Service.  A set of parameters that controls the level of quality provided to different types of network traffic.
Term
RAID
Definition
Redundant Array of Independent or Inexpensive Disks.  A set of vendor-independent specifications for fault-tolerent configurations on multiple-disk systems.
Term
RAM
Definition
Random Access Memory.  A computer storage method that functions as a computer's main memory.
Term
RCA
Definition
Radio Corporation of America.  A cable and Connector that is used to carry audio and video transmissins to and from a variet of devices.
Term
RF
Definition
Radio frequency.  Any of the electromagnetic wave frequencies that lie in the range from 3kHz-300GHz, Include those frequncies used for communications or radar signals.
Term
RIMM
Definition
Rambus Inline Memory Modules.  A RAM form factor that has a metal cover that acts as a heat sink.  Although they may hace the same number of pins, RIMMs have different pin settings.  Are not interchangable with DIMMs and SDRAM.
Term
ROM
Definition
Read-Only Memory.  Memory that saves and stores system data without a constant power source.
Term
RPM
Definition
Red Hat Package Manager.  A tool that provides a standard software installation mechanism, information about installed sofware packages, and a method for uninstalling and upgrading existing software packages.
Term
SATA
Definition
Serial Advaced Technology Attachment.  A type of HDD that requires a serial data channel to connect the drive controller and the disk drives.
Term
SC
Definition
Subscriber Connector or Standard Connector.  Box-shaped connectors that snap into a recepticle.  SC connectors are often used in a duplex configuration where two fibers are terminated into two SC connectors that are molded together.
Term
SIMM
Definition
Single in Line Memory module.  A RAM form factor with a 32-pin data path.
Term
SLA
Definition
Service Level Agreement.  An agreement entered into by the transmitter, or ISP, and the reciever, or subscriber.
Term
SMA
Definition
Sub Multi Assembly or Sub Miniature type A.  Connectors that use a threaded ferrule on the outside to lock the connector into place.
Term
SMART
Definition
Self-monitoring Analysis and Reporting Technology.  A monitoring system that can help anticipate storage drive failures die to excess heat, noise damaged sectors or read/write errors.
Term
SMB
Definition
Server Message Block.  A protocol that works on the Application layer and is used to share files, serial ports, printers, and communications devices, including mail slots and named pipes between computers.
Term
SNMP
Definition
Simple Network Management Protocol.  An Application layer protocol used to exchange information between network devices.
Term
SODIMM
Definition
Small outline Dual In-line Memory Module.  Memory that is half the size of DIMMs, are available in 32- or 64-bit paths, and are commonly found in laptops and iMAC systems.
Term
SOHO MFD
Definition
Small office/home office multi-function device.  network that provides connectivitu and resource sharing.
Term
SPDIF
Definition
Sony Phillps Digital Interconnect Format.  A digital format signal used to connect audio devices to output audio signals over a short distance.
Term
SSD
Definition
Solid State Drive.  A personal
Term
SSH
Definition
Secure Shell.  A protocol that enables a user or application to log on to another computer over a network, execute commands, and manage files.
Term
SSHD
Definition
Solid State Hybrid Drive.  A personal computer storage device that offers the best features of solid state and magnetic data storage by combining the tradition rotating platter of magnetic HDD and a small amount of high speed flash memory on a single drive.
Term
SSID
Definition
Service Set Identifier.  a 32-bit alphanumeric strigin that identifies a wireless access point and all device that connect to it.
Term
SSl
Definition
Secure Sockets Layer.  A security protocol that uses certificates for autherntication and encryption to protect web communication.
Term
ST
Definition
Straight Tip.  Connects multimode fiber, look a lot like BNC connectors.
Term
TCP
Definition
Transmission Control Protocol.  A connection-oriented, guaranteed-deliviery protocol used to send data packets between computers over a network such as the internet.
Term
TCP/IP
Definition
Transmission Control Protocol/ Internet Protocol.  A nonproprietary, routable network protocol suite that enable computers to communicate over a network, including the internet.
Term
TFT
Definition
Thin File Tansistor.  Adisplay type commonly found in laptops.
Term
TIA
Definition
Telecommunications Industry Association.  A standards and trades organization that develops industry standards for technologies such as network cabling.
Term
TKIP
Definition
Temporal Key Integrity Protocol.  A security protocol created by IEEE 802.11i task group to replace WEP.
Term
TLS
Definition
Transport Layer Security.  A security protocol that protects sensitive communication from eavesdropping and tampering by using a secure, encrypted, and authenticated channel over a TCP/IP connection.
Term
TN
Definition
Twisted Nematic.  An LCD panel technology where the panel is black when no electric current is running through the crystal based cells because the cells align themseves in a twisted state.  when an electric current is applied, the liquid crystal cells untwist, allowing light to pass through, resulting in a white display screen.
Term
UAC
Definition
User Account Control.  An enhanced security feature of Windows Vista and 7 that aims to limit the priviledges of a standard user unless a computer admin decides otherwise.
Term
UDP
Definition
User Datagram Protocol.  A connectionless, best-effort delivery protocal used to send data packers between computers over a network such as the internet.
Term
UEFI
Definition
Unified Extensible Firmware Interface.  A standard firmware interface for PCs that was designed to inprove sogtware interoperability and address the limitations in the BIOS.
Term
UPnP
Definition
Universal Plug and Play.  A feature found in wireless routers to enable computers, printers, and other WI-Fi-enabled devices to be easily discoverable by the router.
Term
USMT
Definition
User State Migration Tool.  A command-line utility that copies files and settings from one Microsoft Windows computer to another.
Term
UTM
Definition
Unified Threat Management.  The concept of combining the feaures of firewal, gateway, antivirus, and IDS/IPS into a single device.
Term
VGA
Definition
Video Graphics Array.  A display standard that is implemented with a 15-pin DB-15 connector.
Term
VMM
Definition
Virtual Memory Manager.  The Widnows system component responsible for managing physical-to-virtual memory mappings and virtual memory assignments.
Term
VNC
Definition
Virtual Network Computing.  A platform-independent system through which a user can control a remote system.
Term
VPN
Definition
Virtual Private Network.  A private network that protects communications sent through a public network such as the internet.
Term
WAN
Definition
Wide Area Network.  A network that spans multiple geographic locations, connecting multiple LANs using long-range transmission media.
Term
WAP
Definition
Wireless Access Point.  A device that provides connection between wireless devices and can connect to wired networks.
Term
WEP
Definition
Wired Equivalent Privacy.  Provides 64-bit, 128-bit-, 256-bit encryption for wireless communication that uses the 802.11a or 802.11b protocols.
Term
WiMAX
Definition
Worldwide Interoperability for Microwave Access.  A packet-based wireless technology that provides wireless broadband access over long distances.
Term
WinPE
Definition
Windows Pre-installation enviroment.  A lightweight version of Windows or Windows server that can be used for deployment of the full version of the OS or for troubleshooting OS problems.
Term
WOL
Definition
Wake On LAN.  A networking capability that is built into a device's NIC circuitry that allows a device to turn on, or power up when a nework message is received by another computing device.
Term
WPA
Definition
Wi-Fi Protected Access.  A strong authentication security protocol that was introduced to address some of the shortcomings in the WEP protocol during the pending development of the 802.11i IEEE standard.
Term
WPA2
Definition
Wi-Fi protected access 2.  A complete wireless standard that adds strong encryption and authentication security to 802.11 and relies on 802.1x as the authentication mechanism.
Term
WPAN
Definition
Wireless Personal Area Network.  A network that connects devices in very close proximity but not through a wireless access point.
Term
WWAN
Definition
Wireless Wide Area Network.  Uses wireless network technology to allow users to check email, surf the web, and connect to corporate recources accessible within the cellular network boundaries.
Term
XFS
Definition
A 64-bit, high performance journaling filesystem that proveides fast recovery and can handle large file efficiently.
Supporting users have an ad free experience!