Acronyms Flashcards
ACL
Access Control List - Rules typically applied to router interfaces, which specify permitted and denied
traffic.
AH
Authentication Header - An IPsec protocol that provides authentication and integrity services. However, it does not provide encryption services
AP
Access Point - a networking hardware device that allows other Wi-Fi devices to connect to a wired network.
API
Application Programming Interface - a system of tools and resources in an operating system, enabling developers to create software applications
APIPA
Automatic Private IP Addressing - Allows a networked device to self-assign an IP address from the 169.254.0.0/ 16 network; address is only usable on the device’s local subnet
ARP
Address Resolution Protocol - An ARP request is a broadcast asking for the MAC address corresponding to a known IP address. An ARP reply contains the requested MAC address.
AUP
Acceptable Use Policy - Identifies what users of a network are and are not allowed to do on that
network
BGP
Border Gateway Protocol - a path-vector routing protocol, meaning that it can use as its metric the number of autonomous system hops that must be transited to reach a destination network, as opposed to the number of required router hops; considered to
be the routing protocol that runs the Internet
BNC
Bayonet Neill-Concelman - a type of connector for coaxial cables that allows for quick connections
BSSID
Basic Service Set Identifier - it’s the MAC (Media Access Control) physical address of the access point or wireless router that is used to connect to the WiFi
BYOD
Bring Your Own Device
CAM
Content - Addressable Memory - a special type of computer memory used in certain very-high-speed searching applications
CDN
Content Delivery Network - a network of interconnected servers that speeds up webpage loading for data-heavy applications
CDP
Cisco Discovery Protocol - a Cisco-proprietary protocol that allows Cisco devices to communicate and share information about each other
CIA
Confidentiality Integrity Availability - protecting information from unauthorized access (confidentiality), ensuring data accuracy and consistency (integrity), and guaranteeing timely access to information when needed (availability)
CIDR
Classless Inter-Domain Routing - allows network routers to route data packets to the respective device based on the indicated subnet. Instead of classifying the IP address based on classes, routers retrieve the network and host address as specified by the CIDR suffix.
CLI
Command Line Interface - a means of interacting with a computer program by inputting lines of text called command lines; CMD
CNAME
Canonical Name - a type of resource record in the Domain Name System that maps one domain name to another; convenient when running multiple services from a single IP address.
CPU
Central Processing Unit - the primary processor in a computer
CRC
Cyclic Redundancy Check - a mathematical method that detects errors in data transmission
DAC
Direct Attach Copper - a twinax copper cable that connects directly the ports (or line cards) within active equipment, such as switches, routers, servers or data storage devices, in a data network
DAS
Direct - Attached Storage - digital storage directly attached to the computer accessing it
DCI
Data Center Interconnect - a network that connects data centers to share data and resources
DDoS
Distributed Denial of Service - a cyberattack that floods a target with traffic from many different sources to overwhelm its resources and disrupt services