Acro 2 - Defs Flashcards
(296 cards)
1
Q
What does AC stand for in electrical terms?
A
Alternating Current
AC is commonly used in household power systems.
2
Q
What is the purpose of an ACL?
A
Access Control List
It specifies which users or system processes have access to objects.
3
Q
What does ACPI stand for?
A
Advanced Configuration and Power Interface
It is an open standard for device configuration and power management.
4
Q
What is Active Directory?
A
Microsoft’s directory service for Windows domain networks
5
Q
Define ADSL.
A
Asymmetric Digital Subscriber Line
It is a type of DSL where upload and download speeds differ.
6
Q
What is the AES standard used for?
A
Advanced Encryption Standard
It is a specification for the encryption of electronic data.
7
Q
What does AGP stand for?
A
Accelerated Graphics Port
It is an obsolete high-speed channel for graphics cards.
8
Q
What does AI stand for?
A
Artificial Intelligence
It refers to the simulation of human intelligence processes by machines.
9
Q
What is an Access Point?
A
A networking hardware device that allows wireless devices to connect to a wired network
10
Q
APIPA stands for what?
A
Automatic Private IP Addressing
It automatically assigns an IP address when a DHCP server isn’t available.
11
Q
Fill in the blank: APK stands for _______.
A
Android Package Kit
12
Q
What is an APT in cybersecurity?
A
Advanced Persistent Threat
It refers to a prolonged and targeted cyberattack.
13
Q
What does ARP stand for?
A
Address Resolution Protocol
It maps an IP address to a physical machine address in a local network.
14
Q
ASLR is a security technique that stands for _______.
A
Address Space Layout Randomization
15
Q
What is ASR in Windows operating systems?
A
Automated System Recovery
It is a feature for recovering the system in case of failure.
16
Q
What does ATM stand for?
A
Asynchronous Transfer Mode
It is a telecommunications standard for digital transmission.
17
Q
What does ATX refer to?
A
Advanced Technology eXtended
It is a motherboard and power supply configuration specification.
18
Q
BASIC is a family of programming languages designed for _______.
A
easy use
19
Q
What does BCD stand for?
A
Boot Configuration Data
It is a firmware-independent database for boot-time configuration on Windows.
20
Q
What is BGP used for?
A
Border Gateway Protocol
It establishes the best route between autonomous systems.
21
Q
What does BIOS stand for?
A
Basic Input/Output System
It is firmware used during the booting process.
22
Q
Define BLOB.
A
Binary Large Object
It is a collection of binary data stored as a single entity in a database.
23
Q
What type of connector is BNC?
A
Bayonet Neill-Concelman
It is used for coaxial cable.
24
Q
BOOTP is a network protocol used for _______.
A
assigning an IP address to a network device
25
What does BSOD stand for?
Blue Screen of Death
## Footnote
It is an error screen displayed after a fatal system error on Windows.
26
What is a BSS in wireless networking?
Basic Service Set
## Footnote
It consists of all stations that can communicate with each other.
27
BYOD stands for _______.
Bring Your Own Device
28
What does CAD stand for?
Computer-Aided Design
## Footnote
It is software used to create precision drawings or technical illustrations.
29
CAPTCHA is a type of _______.
challenge-response test
30
What does CAT refer to in networking?
Category
## Footnote
It classifies twisted pair cables for data networks.
31
CCMP is a security protocol used in _______.
WPA2
32
What is a CD?
Compact Disc
## Footnote
It is an optical disc digital storage format.
33
CDFS stands for _______.
Compact Disc File System
34
What does CDMA stand for?
Code Division Multiple Access
## Footnote
It is a channel access method used in radio communication technologies.
35
What is CERT?
Computer Emergency Response Team
## Footnote
It handles computer security incidents.
36
CIFS is a protocol for _______.
shared access to files, printers, and other resources on a network
37
What does CIDR stand for?
Classless Inter-Domain Routing
## Footnote
It is a method for allocating IP addresses and routing IP packets.
38
CIM stands for _______.
Common Information Model
39
What is CMOS technology used for?
constructing integrated circuits
40
What does CPU stand for?
Central Processing Unit
## Footnote
It is the electronic circuitry that executes program instructions.
41
CRM refers to systems for managing a company's _______.
interactions with current and potential customers
42
CSP stands for _______.
Cloud Service Provider
43
What does CSMA/CA stand for?
Carrier Sense Multiple Access with Collision Avoidance
44
CSMA/CD is a protocol used in _______.
wired Ethernet networks
45
What does CSV stand for?
Comma-Separated Values
## Footnote
It is a simple file format used to store tabular data.
46
DAC stands for _______.
Discretionary Access Control
47
What is DaaS?
Desktop as a Service
## Footnote
It delivers virtual desktops to end users via the internet.
48
DB refers to _______.
Database
49
What does DC stand for in networking?
Domain Controller
## Footnote
It responds to security authentication requests within a Windows domain.
50
What is a DDoS attack?
Distributed Denial of Service
## Footnote
It floods the bandwidth of a targeted system.
51
DEP stands for _______.
Data Execution Prevention
52
What does DHCP stand for?
Dynamic Host Configuration Protocol
## Footnote
It automatically assigns IP addresses to devices on a network.
53
DIMM refers to _______.
Dual In-line Memory Module
54
What is a DLL?
Dynamic Link Library
## Footnote
It is Microsoft's implementation of the shared library concept.
55
DLP stands for _______.
Data Loss Prevention
56
DMA is a feature that allows hardware subsystems to _______.
access main system memory independently of the CPU
57
What does DMZ stand for?
Demilitarized Zone
58
What is DNS?
Domain Name System
## Footnote
It is a hierarchical and decentralized naming system for computers on the internet.
59
DoS stands for _______.
Denial of Service
60
What does DPI measure in printing?
Dots Per Inch
61
DRAM stands for _______.
Dynamic Random Access Memory
62
DSL is a family of technologies that provide internet access over _______.
telephone lines
63
What does DVI stand for?
Digital Visual Interface
64
ECC stands for _______.
Error-Correcting Code
65
What is EEPROM?
Electrically Erasable Programmable Read-Only Memory
66
EFS is a feature of Windows that provides _______.
file system-level encryption
67
EIDE stands for _______.
Enhanced Integrated Drive Electronics
68
EMI is an abbreviation for _______.
Electromagnetic Interference
69
EMP stands for _______.
Electromagnetic Pulse
70
What does ESD stand for?
Electrostatic Discharge
71
ESSID stands for _______.
Extended Service Set Identifier
72
What is an EULA?
End-User License Agreement
## Footnote
It is a legal contract between a software author and the user.
73
What does exFAT stand for?
Extended File Allocation Table
74
FAT stands for _______.
File Allocation Table
75
What is FAT32?
32-bit File Allocation Table
## Footnote
It supports larger drives than the original FAT.
76
FCoE stands for _______.
Fibre Channel over Ethernet
77
What is a FDD?
Floppy Disk Drive
78
FDE is a type of encryption that stands for _______.
Full Disk Encryption
79
FDM refers to _______.
Frequency-Division Multiplexing
80
What does FTP stand for?
File Transfer Protocol
81
FTPS adds support for _______ to FTP.
TLS and SSL cryptographic protocols
82
GB stands for _______.
Gigabyte
83
GbE refers to _______.
Gigabit Ethernet
84
What does GHz measure?
frequency
85
What is GNOME?
GNU Network Object Model Environment
86
GNU stands for _______.
GNU's Not Unix
87
What is a GPO?
Group Policy Object
## Footnote
It defines system settings for users.
88
What does GPS stand for?
Global Positioning System
89
GPT stands for _______.
GUID Partition Table
90
GPU stands for _______.
Graphics Processing Unit
91
What does GSM stand for?
Global System for Mobile Communications
92
GUI stands for _______.
Graphical User Interface
93
What does HAL stand for?
Hardware Abstraction Layer
94
HCL stands for _______.
Hardware Compatibility List
95
HDD stands for _______.
Hard Disk Drive
96
HDMI is a type of _______.
audio/video interface
97
What does HIPS stand for?
Host-based Intrusion Prevention System
98
HPET stands for _______.
High Precision Event Timer
99
What does HTML stand for?
HyperText Markup Language
100
HTTP stands for _______.
HyperText Transfer Protocol
101
What does HTTPS stand for?
HyperText Transfer Protocol Secure
102
HVAC stands for _______.
Heating, Ventilation, and Air Conditioning
103
IaaS stands for _______.
Infrastructure as a Service
104
What is an IC?
Integrated Circuit
105
ICMP stands for _______.
Internet Control Message Protocol
106
IDE stands for _______.
Integrated Drive Electronics
107
What is an IDS?
Intrusion Detection System
108
IEEE stands for _______.
Institute of Electrical and Electronics Engineers
109
IMAP stands for _______.
Internet Message Access Protocol
110
What does IoT stand for?
Internet of Things
111
IP stands for _______.
Internet Protocol
112
What is an IPS?
Intrusion Prevention System
113
IPv4 is the _______ version of the Internet Protocol.
fourth
114
IPv6 is the _______ version of the Internet Protocol.
most recent
115
IrDA stands for _______.
Infrared Data Association
116
What does IRC stand for?
Internet Relay Chat
117
IRP stands for _______.
Incident Response Plan
118
ISA stands for _______.
Industry Standard Architecture
119
ISDN stands for _______.
Integrated Services Digital Network
120
What is an ISP?
Internet Service Provider
121
JBOD stands for _______.
Just a Bunch of Disks
122
JSON stands for _______.
JavaScript Object Notation
123
KDE stands for _______.
K Desktop Environment
124
KVM is a device that allows control of multiple computers from a single _______.
keyboard, monitor, and mouse
125
LAN stands for _______.
Local Area Network
126
LCD stands for _______.
Liquid Crystal Display
127
LDAP stands for _______.
Lightweight Directory Access Protocol
128
LED stands for _______.
Light-Emitting Diode
129
LPT stands for _______.
Line Print Terminal
130
LTE stands for _______.
Long-Term Evolution
131
LUN stands for _______.
Logical Unit Number
132
What does LDAP stand for?
Lightweight Directory Access Protocol
## Footnote
An open, vendor-neutral, industry standard application protocol for accessing directory services.
133
Define LED.
Light-Emitting Diode
## Footnote
A semiconductor light source that emits light when current flows through it.
134
What is LPT used for?
Line Print Terminal
## Footnote
A parallel port used to connect peripherals such as printers.
135
What does LTE stand for?
Long-Term Evolution
## Footnote
A standard for wireless broadband communication for mobile devices and data terminals.
136
What is LUN in computing?
Logical Unit Number
## Footnote
A number used to identify a logical unit, which is a device addressed by the SCSI protocol.
137
Define LVD.
Low Voltage Differential
## Footnote
A type of electrical signaling used for data transmission.
138
What does MAC stand for?
Media Access Control
## Footnote
A unique identifier assigned to a network interface controller for communications at the data link layer.
139
What is MAM?
Mobile Application Management
## Footnote
Software and services responsible for provisioning and controlling access to mobile applications.
140
What type of network is a MAN?
Metropolitan Area Network
## Footnote
A computer network that interconnects users with computer resources in a geographic area larger than a LAN.
141
What does MBR stand for?
Master Boot Record
## Footnote
A special type of boot sector at the very beginning of partitioned computer mass storage devices.
142
What is MDM?
Mobile Device Management
## Footnote
An industry term for the administration of mobile devices, such as smartphones, tablet computers, and laptops.
143
What does MFA stand for?
Multi-Factor Authentication
## Footnote
A security system that requires more than one method of authentication from independent categories of credentials.
144
What is MFD?
Multi-Function Device
## Footnote
An office machine that incorporates the functionality of multiple devices.
145
What does MIMO stand for?
Multiple-Input Multiple-Output
## Footnote
A method for multiplying the capacity of a radio link using multiple transmission and receiving antennas.
146
What is MPIO?
Multipath I/O
## Footnote
A technique to build fault-tolerance into a storage system.
147
What does MSP stand for?
Managed Service Provider
## Footnote
A company that remotely manages a customer's IT infrastructure and/or end-user systems.
148
Define MTP.
Media Transfer Protocol
## Footnote
An extension to the Picture Transfer Protocol (PTP) communications protocol.
149
What does MTU stand for?
Maximum Transmission Unit
## Footnote
The size of the largest protocol data unit that can be communicated in a single network layer transaction.
150
What is MUI?
Multilingual User Interface
## Footnote
A feature in Windows that allows changing the language of user interface elements.
151
What does NAC stand for?
Network Access Control
## Footnote
An approach to computer security that attempts to unify endpoint security technology.
152
What is NaaS?
Network as a Service
## Footnote
A business model for delivering network services virtually over the internet.
153
What does NAT stand for?
Network Address Translation
## Footnote
A method of remapping one IP address space into another by modifying network address information.
154
What is NetBIOS?
Network Basic Input/Output System
## Footnote
A protocol that allows applications on separate computers to communicate over a local area network.
155
Define NFC.
Near Field Communication
## Footnote
A set of communication protocols enabling two electronic devices to establish communication by bringing them within 4 cm of each other.
156
What does NIC stand for?
Network Interface Card
## Footnote
A hardware component that connects a computer to a computer network.
157
What is NLB?
Network Load Balancing
## Footnote
A clustering technology used to enhance the scalability and availability of mission-critical, TCP/IP-based services.
158
What does NTFS stand for?
New Technology File System
## Footnote
A proprietary file system developed by Microsoft for use in Windows operating systems.
159
What is NTLM?
NT LAN Manager
## Footnote
A suite of Microsoft security protocols providing authentication, integrity, and confidentiality to users.
160
What does NTP stand for?
Network Time Protocol
## Footnote
A networking protocol for clock synchronization between computer systems over packet-switched networks.
161
Define NVRAM.
Non-Volatile Random-Access Memory
## Footnote
A type of RAM that retains data when power is switched off.
162
What does OCR stand for?
Optical Character Recognition
## Footnote
The electronic or mechanical conversion of images of typed, handwritten, or printed text into machine-encoded text.
163
What is ODBC?
Open Database Connectivity
## Footnote
A standard application programming interface for accessing database management systems.
164
What does OEM stand for?
Original Equipment Manufacturer
## Footnote
A company that produces parts and equipment that may be marketed by another manufacturer.
165
What is an OS?
Operating System
## Footnote
Software that manages computer hardware, software resources, and provides common services for computer programs.
166
Define OSI.
Open Systems Interconnection
## Footnote
A conceptual model that standardizes the communication functions of a telecommunication or computing system.
167
What does OTP stand for?
One-Time Password
## Footnote
A password that is valid for only one login session or transaction.
168
What is PaaS?
Platform as a Service
## Footnote
A category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications.
169
What does PAP stand for?
Password Authentication Protocol
## Footnote
A simple, clear-text authentication scheme for authenticating a user to a remote server.
170
What is PAT?
Port Address Translation
## Footnote
A feature of a NAT that translates TCP or UDP communications made between hosts on a private network and hosts on a public network.
171
What does PC stand for?
Personal Computer
## Footnote
A multi-purpose computer whose size, capabilities, and price make it feasible for individual use.
172
Define PCI.
Peripheral Component Interconnect
## Footnote
A local computer bus for attaching hardware devices in a computer.
173
What does PCIe stand for?
Peripheral Component Interconnect Express
## Footnote
A high-speed serial computer expansion bus standard, designed to replace the older PCI standard.
174
What is PGP?
Pretty Good Privacy
## Footnote
An encryption program that provides cryptographic privacy and authentication for data communication.
175
What does PIN stand for?
Personal Identification Number
## Footnote
A numeric password shared between a user and a system to authenticate the user.
176
What is PKI?
Public Key Infrastructure
## Footnote
A set of roles, policies, hardware, software, and procedures to create, manage, distribute, use, store, and revoke digital certificates.
177
What does PnP stand for?
Plug and Play
## Footnote
A capability of a computer system to automatically configure expansion boards and other devices.
178
What is PoE?
Power over Ethernet
## Footnote
A technology that passes electrical power along with data on Ethernet cabling.
179
What does POP3 stand for?
Post Office Protocol 3
## Footnote
A protocol used by e-mail clients to retrieve e-mail from a mail server.
180
What is POST?
Power-On Self-Test
## Footnote
The initial set of diagnostic tests performed by the computer when powered on.
181
Define POTS.
Plain Old Telephone Service
## Footnote
The voice-grade telephone service that remains the basic form of residential and small business service connection.
182
What does PPP stand for?
Point-to-Point Protocol
## Footnote
A data link protocol used to establish a direct connection between two nodes.
183
What is PPTP?
Point-to-Point Tunneling Protocol
## Footnote
An obsolete method for implementing virtual private networks.
184
What does PRI stand for?
Primary Rate Interface
## Footnote
A telecommunications interface standard used on an Integrated Services Digital Network.
185
Define PROM.
Programmable Read-Only Memory
## Footnote
A form of digital memory where the setting of each bit is locked by a fuse or antifuse.
186
What is PSU?
Power Supply Unit
## Footnote
A hardware component that supplies power to an electrical device.
187
What does PXE stand for?
Preboot Execution Environment
## Footnote
An environment to boot computers using a network interface independent of data storage devices.
188
What does QA stand for?
Quality Assurance
## Footnote
A way of preventing mistakes and defects in manufactured products and avoiding problems when delivering solutions.
189
What is QoS?
Quality of Service
## Footnote
The description or measurement of the overall performance of a service, particularly the performance seen by users.
190
What does RADIUS stand for?
Remote Authentication Dial-In User Service
## Footnote
A networking protocol providing centralized Authentication, Authorization, and Accounting management.
191
Define RAID.
Redundant Array of Independent Disks
## Footnote
A data storage virtualization technology that combines multiple physical disk drive components into one or more logical units.
192
What does RAM stand for?
Random Access Memory
## Footnote
A form of computer memory that can be read and changed, used to store working data and machine code.
193
What is RAS?
Remote Access Service
## Footnote
A service that enables users to remotely access servers on a network.
194
What does RDP stand for?
Remote Desktop Protocol
## Footnote
A proprietary protocol developed by Microsoft, providing a user with a graphical interface to connect to another computer over a network connection.
195
Define REST.
Representational State Transfer
## Footnote
A software architectural style that defines a set of constraints to be used for creating Web services.
196
What does RF stand for?
Radio Frequency
## Footnote
The oscillation rate of an alternating electric current or voltage, used in wireless communications.
197
What is RFI?
Radio-Frequency Interference
## Footnote
Electromagnetic interference that affects an electrical circuit due to electromagnetic induction or radiation.
198
What does RFID stand for?
Radio-Frequency Identification
## Footnote
The use of radio waves to read and capture information stored on a tag attached to an object.
199
Define RGB.
Red, Green, Blue
## Footnote
The additive color model in which red, green, and blue light are added together to reproduce a broad array of colors.
200
What does RIP stand for?
Routing Information Protocol
## Footnote
A distance-vector routing protocol which employs the hop count as a routing metric.
201
What is RIS?
Remote Installation Services
## Footnote
A feature in Windows Server that allows administrators to remotely install Windows operating systems.
202
Define RISC.
Reduced Instruction Set Computer
## Footnote
A CPU design strategy based on the insight that simplified instructions can provide higher performance.
203
What does RJ-11 stand for?
Registered Jack - 11
## Footnote
A common type of physical connector interface for telecommunications equipment.
204
What is RJ-45?
Registered Jack - 45
## Footnote
A type of physical connector commonly used for Ethernet networking.
205
What does ROM stand for?
Read-Only Memory
## Footnote
A type of non-volatile memory used in computers and other electronic devices.
206
What is RTC?
Real-Time Clock
## Footnote
A computer clock that keeps track of the current time.
207
Define RTF.
Rich Text Format
## Footnote
A proprietary document file format with published specification developed by Microsoft.
208
What does SaaS stand for?
Software as a Service
## Footnote
A software licensing and delivery model in which software is licensed on a subscription basis and centrally hosted.
209
What is SAN?
Storage Area Network
## Footnote
A network which provides access to consolidated, block-level data storage.
210
What does SATA stand for?
Serial Advanced Technology Attachment
## Footnote
A computer bus interface that connects host bus adapters to mass storage devices.
211
What is SCP?
Secure Copy Protocol
## Footnote
A means of securely transferring computer files between a local host and a remote host.
212
What does SCSI stand for?
Small Computer System Interface
## Footnote
A set of standards for physically connecting and transferring data between computers and peripheral devices.
213
Define SD.
Secure Digital
## Footnote
A non-volatile memory card format for use in portable devices.
214
What is SDN?
Software-Defined Networking
## Footnote
An approach to network management that enables dynamic, programmatically efficient network configuration.
215
What does SFTP stand for?
SSH File Transfer Protocol
## Footnote
A network protocol that provides file access, file transfer, and file management over a secure connection.
216
What is SGRAM?
Synchronous Graphics RAM
## Footnote
A specialized form of DRAM designed for video cards or the video circuitry of a computer.
217
What does SHA stand for?
Secure Hash Algorithm
## Footnote
A family of cryptographic hash functions published by the National Institute of Standards and Technology.
218
What is SIMM?
Single In-line Memory Module
## Footnote
A type of memory module containing random-access memory used in computers.
219
What does SLA stand for?
Service Level Agreement
## Footnote
A commitment between a service provider and a client about aspects of the service such as quality and availability.
220
What is SMB?
Server Message Block
## Footnote
A network file sharing protocol that allows applications on a computer to read and write to files on a remote server.
221
What does SMS stand for?
Short Message Service
## Footnote
A text messaging service component of most telephone, internet, and mobile-device systems.
222
What is SMTP?
Simple Mail Transfer Protocol
## Footnote
A communication protocol for electronic mail transmission.
223
Define SNMP.
Simple Network Management Protocol
## Footnote
An Internet Standard protocol for collecting and organizing information about managed devices on IP networks.
224
What does SOA stand for?
Service-Oriented Architecture
## Footnote
A style of software design where services are provided to the other components by application components.
225
What does SOHO stand for?
Small Office/Home Office
## Footnote
A business category for small businesses, often run from home.
226
What is SP?
Service Pack
## Footnote
A collection of updates, fixes, or enhancements to a software program delivered in the form of a single installable package.
227
What does SPX stand for?
Sequenced Packet Exchange
## Footnote
A transport layer protocol in the IPX/SPX protocol suite.
228
What is SQL?
Structured Query Language
## Footnote
A domain-specific language used in programming and designed for managing data held in a relational database.
229
What does SSD stand for?
Solid-State Drive
## Footnote
A solid-state storage device that uses integrated circuit assemblies to store data persistently.
230
What is SSH?
Secure Shell
## Footnote
A cryptographic network protocol for operating network services securely over an unsecured network.
231
What does SSID stand for?
Service Set Identifier
## Footnote
A sequence of characters that uniquely names a wireless local area network.
232
What is SSL?
Secure Sockets Layer
## Footnote
A security protocol to establish encrypted links between a web server and a browser.
233
What does SSO stand for?
Single Sign-On
## Footnote
An authentication scheme that allows a user to log in with a single ID and password to multiple related systems.
234
What is STP?
Shielded Twisted Pair
## Footnote
A type of cable that has a foil shield inside the protective jacket.
235
What does SUID stand for?
Set User ID
## Footnote
A type of file permission in Unix and Unix-like operating systems such as Linux.
236
What is SVC?
Switched Virtual Circuit
## Footnote
A virtual circuit that is established through a network on an as-needed basis and terminated when transmission is complete.
237
What does SVN stand for?
Subversion
## Footnote
A software versioning and revision control system.
238
What does TACACS stand for?
Terminal Access Controller Access-Control System
## Footnote
A remote authentication protocol that is used to communicate with an authentication server.
239
What is TB in terms of data storage?
Terabyte
## Footnote
A unit of digital information equal to one trillion bytes.
240
What does TCP stand for?
Transmission Control Protocol
## Footnote
A connection-oriented communications protocol that facilitates the exchange of messages between computing devices.
241
What does TCP/IP stand for?
Transmission Control Protocol/Internet Protocol
## Footnote
The conceptual model and set of communications protocols used in the Internet.
242
What is TDM?
Time-Division Multiplexing
## Footnote
A method of transmitting and receiving independent signals over a common signal path.
243
What does TFTP stand for?
Trivial File Transfer Protocol
## Footnote
A simplified version of the File Transfer Protocol.
244
What does TLS stand for?
Transport Layer Security
## Footnote
A cryptographic protocol designed to provide communications security over a computer network.
245
What is TN?
Terminal Network
## Footnote
A protocol that enables terminal emulation on the Internet.
246
What does TPM stand for?
Trusted Platform Module
## Footnote
A specialized chip on an endpoint device that stores RSA encryption keys specific to the host system.
247
What does TTL stand for?
Time To Live
## Footnote
A mechanism that limits the lifespan or lifetime of data in a computer or network.
248
What does TXT stand for?
Trusted Execution Technology
## Footnote
A hardware-based security feature found in Intel processors.
249
What does UAC stand for?
User Account Control
## Footnote
A security feature in Windows that helps prevent unauthorized changes to the operating system.
250
Define UDF.
Universal Disk Format
## Footnote
A profile of the specification known as ISO/IEC 13346 and ECMA-167 and is an open vendor-neutral file system.
251
What does UDP stand for?
User Datagram Protocol
## Footnote
A connectionless communications protocol that facilitates the exchange of messages between computing devices.
252
What does UEFI stand for?
Unified Extensible Firmware Interface
## Footnote
A specification that defines a software interface between an operating system and platform firmware.
253
What does UNC stand for?
Universal Naming Convention
## Footnote
A naming convention for specifying and mapping network drives in Microsoft Windows.
254
What is UPS?
Uninterruptible Power Supply
## Footnote
An electrical apparatus that provides emergency power to a load when the input power source fails.
255
What does URI stand for?
Uniform Resource Identifier
## Footnote
A string of characters that unambiguously identifies a particular resource.
256
What does URL stand for?
Uniform Resource Locator
## Footnote
A reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.
257
What does USB stand for?
Universal Serial Bus
## Footnote
An industry standard that establishes specifications for cables, connectors, and protocols.
258
What does UTP stand for?
Unshielded Twisted Pair
## Footnote
A type of cable that consists of pairs of wires twisted together.
259
What is UTM?
Unified Threat Management
## Footnote
A security solution that provides multiple security functions in a single appliance.
260
What does UUID stand for?
Universally Unique Identifier
## Footnote
A 128-bit identifier used for unique identification of information in computer systems.
261
What type of cable consists of pairs of wires twisted together?
UTP (Unshielded Twisted Pair)
## Footnote
A type of cable commonly used in networking.
262
What does UTM stand for?
Unified Threat Management
## Footnote
A security solution that provides multiple security functions in a single appliance.
263
What does UUID stand for?
Universally Unique Identifier
## Footnote
A 128-bit number used to identify information in computer systems.
264
What does VESA stand for?
Video Electronics Standards Association
## Footnote
An international non-profit corporation standards body for computer display standards.
265
What is VFAT?
Virtual File Allocation Table
## Footnote
An optional extension to FAT file systems that allows for long filenames.
266
What does VGA stand for?
Video Graphics Array
## Footnote
A video display controller and graphics standard for PC video display devices.
267
What is a VLAN?
Virtual Local Area Network
## Footnote
Any broadcast domain that is partitioned and isolated in a computer network at the data link layer.
268
What does VM stand for?
Virtual Machine
## Footnote
An emulation of a computer system that provides the functionality of a physical computer.
269
What does VNC stand for?
Virtual Network Computing
## Footnote
A graphical desktop-sharing system that uses the Remote Frame Buffer protocol to remotely control another computer.
270
What does VoIP stand for?
Voice over IP
## Footnote
A methodology and group of technologies for the delivery of voice communications over Internet Protocol networks.
271
What is a VPN?
Virtual Private Network
## Footnote
A technology that creates a safe and encrypted connection over a less secure network.
272
What does VRAM stand for?
Video Random Access Memory
## Footnote
A type of RAM used specifically for video adapters or 3D accelerators.
273
What does WAN stand for?
Wide Area Network
## Footnote
A telecommunications network extended over a large geographical distance.
274
What is a WAP?
Wireless Access Point
## Footnote
A networking hardware device that allows wireless devices to connect to a wired network.
275
What does WEP stand for?
Wired Equivalent Privacy
## Footnote
A security algorithm for IEEE 802.11 wireless networks.
276
What does WINS stand for?
Windows Internet Name Service
## Footnote
Microsoft's implementation of NetBIOS Name Server, a name server for NetBIOS computer names.
277
What is WLAN?
Wireless Local Area Network
## Footnote
A wireless computer network that links two or more devices using wireless communication.
278
What does WMI stand for?
Windows Management Instrumentation
## Footnote
A set of specifications for consolidating the management of devices and applications.
279
What does WPA stand for?
Wi-Fi Protected Access
## Footnote
A security certification program developed by the Wi-Fi Alliance to secure wireless computer networks.
280
What is WPA2?
Wi-Fi Protected Access 2
## Footnote
The current security standard for wireless networks, which added AES encryption.
281
What does WPA3 stand for?
Wi-Fi Protected Access 3
## Footnote
The latest security certification standard for Wi-Fi networks, released in 2018.
282
What does WPAD stand for?
Web Proxy Auto-Discovery Protocol
## Footnote
A method used by clients to locate a URL of a configuration file using DHCP and/or DNS discovery methods.
283
What does WSUS stand for?
Windows Server Update Services
## Footnote
A computer program developed by Microsoft that enables administrators to manage the distribution of updates.
284
What does WWW stand for?
World Wide Web
## Footnote
An information system where documents and other web resources are identified by URLs.
285
What does XML stand for?
Extensible Markup Language
## Footnote
A markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.
286
What is XSS?
Cross-Site Scripting
## Footnote
A type of security vulnerability typically found in web applications that allows attackers to inject malicious scripts into webpages.
287
What does YB stand for?
Yottabyte
## Footnote
A unit of digital information that equals 2^80 bytes, or approximately 10^24 bytes.
288
What does ZB stand for?
Zettabyte
## Footnote
A unit of digital information that equals 2^70 bytes, or approximately 10^21 bytes.
289
What does ZIF stand for?
Zero Insertion Force
## Footnote
A type of IC socket or connector that requires very little force for insertion of the electronic components.
290
What is ZIP?
Zigzag Inline Package
## Footnote
A type of packaging for integrated circuits that is specially designed to minimize electromagnetic interference.
291
What does 802.11 stand for?
IEEE 802.11
## Footnote
A set of standards for implementing wireless local area network (WLAN) computer communication.
292
What is the purpose of 802.1x?
Standard for port-based Network Access Control
## Footnote
Provides an authentication mechanism to devices wishing to attach to a LAN.
293
What does 3G stand for?
Third Generation
## Footnote
The third generation of wireless mobile telecommunications technology.
294
What does 4G stand for?
Fourth Generation
## Footnote
The fourth generation of broadband cellular network technology.
295
What does 5G stand for?
Fifth Generation
## Footnote
The fifth generation technology standard for broadband cellular networks.
296
What is 6to4?
Transition mechanism for migrating from IPv4 to IPv6
## Footnote
A method used to facilitate the transition between the two Internet Protocol versions.
