CompTIA Network+ Acronyms

Quick-reference glossary of key Network+ terms

Acronym Spelled Out
A Address
ACL Access Control List
AH Authentication Header
AP Access Point
API Application Programming Interface
APIPA Automatic Private IP Addressing
ARP Address Resolution Protocol
AUP Acceptable Use Policy
BGP Border Gateway Protocol
BNC Bayonet Neill–Concelman
BSSID Basic Service Set Identifier
BYOD Bring Your Own Device
CAM Content-addressable Memory
CDN Content Delivery Network
CDP Cisco Discovery Protocol
CIA Confidentiality, Integrity, and Availability
CIDR Classless Inter-Domain Routing
CLI Command-line Interface
CNAME Canonical Name
CPU Central Processing Unit
CRC Cyclic Redundancy Check
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
DDoS Distributed Denial of Service
FTP File Transfer Protocol
GRE Generic Routing Encapsulation
HTTP Hypertext Transfer Protocol
HTTPS Hypertext Transfer Protocol Secure
IP Internet Protocol
ICMP Internet Control Message Protocol
IDS Intrusion Detection System
IPS Intrusion Prevention System
LAN Local Area Network
MAC Media Access Control
MTU Maximum Transmission Unit
NAT Network Address Translation
NIC Network Interface Card
OSI Open Systems Interconnection
PoE Power over Ethernet
QoS Quality of Service
RIP Routing Information Protocol
SSID Service Set Identifier
TCP Transmission Control Protocol
UDP User Datagram Protocol
URL Uniform Resource Locator
USB Universal Serial Bus
VLAN Virtual Local Area Network
VPN Virtual Private Network
WAN Wide Area Network
WPA Wi-Fi Protected Access
ZTA Zero Trust Architecture