Term 991
VPN
A VPN creates an encrypted tunnel over a public network to securely connect remote users or sites to a private network.
Acronym study
Terms 991–1020 of 1033 N10-009 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 991
A VPN creates an encrypted tunnel over a public network to securely connect remote users or sites to a private network.
Term 992
A VPN concentrator is a network device that manages, encrypts, and routes multiple VPN connections from remote users or sites into a single secure gateway.
Term 993
A VPN connection creates a secure, encrypted tunnel between a device and a remote network over the public internet, protecting data from eavesdropping.
Term 994
A VPN Gateway is a network device or service that creates an encrypted tunnel between two or more networks over the internet, allowing secure communication.
Term 995
VRF (Virtual Routing and Forwarding) allows a single router to maintain multiple separate routing tables, enabling network segmentation without additional hardware.
Term 996
VRRP (Virtual Router Redundancy Protocol) is a network protocol that automatically assigns a virtual IP address to a group of routers to ensure that if one router fails, another can take over seamlessly, keeping devices on the network connected.
Term 997
VRRP is an open standard protocol that provides default gateway redundancy by allowing multiple routers to share a virtual IP address.
Term 998
VTP is a Cisco proprietary protocol that advertises VLAN configuration information across a network to keep VLAN databases consistent among switches.
Term 999
VTP (VLAN Trunk Protocol) is a Cisco proprietary protocol that manages the addition, deletion, and renaming of VLANs across a switched network.
Term 1000
VXLAN is a network overlay technology that encapsulates Layer 2 Ethernet frames in UDP packets to extend VLANs across Layer 3 networks.
Term 1001
A Web Application Firewall (WAF) is a security tool that filters, monitors, and blocks HTTP traffic to and from a web application to protect it from common attacks.
Term 1002
A Wide Area Network (WAN) is a telecommunications network that connects multiple smaller networks, like local area networks, across large geographical distances.
Term 1003
A WAP is a networking device that allows wireless devices to connect to a wired network using Wi-Fi standards.
Term 1004
A Wavelength Zone is a small, physically separate data center location within a metropolitan area that provides ultra-low latency for edge computing and 5G applications.
Term 1005
A Web Application Firewall (WAF) is a security tool that monitors, filters, and blocks HTTP traffic to and from a web application to protect it from common attacks.
Term 1006
A webcam is a small digital camera that captures video and audio for live streaming or recording over the internet, typically used in video calls and online meetings.
Term 1007
Weighted routing is a traffic management technique that distributes network requests across multiple servers or paths according to assigned numerical weights, allowing for controlled, uneven load distribution.
Term 1008
A set of best practices and design principles for building secure, high-performing, resilient, and efficient cloud infrastructure.
Term 1009
WEP (Wired Equivalent Privacy) is an outdated wireless security protocol that encrypts data using the RC4 cipher and a static key, but is easily broken.
Term 1010
wget is a free command-line tool for downloading files from the internet using protocols like HTTP, HTTPS, and FTP.
Term 1011
Wi-Fi is a technology that lets devices like laptops and phones connect to the internet or communicate with each other wirelessly using radio waves.
Term 1012
Wi-Fi Protected Access (WPA) is a security standard designed to secure wireless networks by encrypting data and controlling access, replacing the older and less secure WEP standard.
Term 1013
A network security feature designed to simplify the process of connecting devices to a Wi-Fi network by using a push button or PIN instead of entering the full password.
Term 1014
A Wide Area Network (WAN) is a telecommunications network that connects computers and devices across large geographical distances, such as between cities or countries.
Term 1015
A wildcard mask is a sequence of 32 bits used alongside an IP address to define which bits must match and which are ignored for routing, access control, or network matching purposes.
Term 1016
A Windows Update failure occurs when the operating system cannot download, install, or configure updates from Microsoft servers successfully.
Term 1017
WinRM is Microsoft's implementation of WS-Management, enabling secure remote management of Windows systems over HTTP/HTTPS.
Term 1018
Wired Equivalent Privacy (WEP) is a security protocol for wireless networks, designed to provide a level of data confidentiality comparable to a wired LAN.
Term 1019
A wireless access point is a networking device that allows Wi-Fi-enabled devices to connect to a wired network, typically a local area network (LAN), acting as a bridge between wireless and wired communication.
Term 1020
A set of rules that allows mobile devices to connect to the internet over a wireless network, primarily used in older mobile phone systems to access web content.