CompTIA Network+ N10-009 (V9) Exam Acronyms Practice Test 2

FHRP (First Hop Redundancy Protocol) is the general category of protocols, including HSRP and VRRP, allowing routers to share a redundant virtual gateway.

TACACS+ stands for Terminal Access Controller Access Control System Plus, a protocol for centralized authentication of network device administration.

RADIUS stands for Remote Authentication Dial-in User Service and is commonly used to centralize authentication, authorization, and accounting (AAA) for network access.

SSO stands for Single Sign-on, allowing one login to grant access to multiple systems.

MFA requires more than one form of verification, such as a password plus a code, to authenticate a user.

ACL stands for Access Control List, a set of rules permitting or denying specific traffic through a network device.

IPS stands for Intrusion Prevention System, which can actively block malicious traffic in real time, unlike an IDS which only monitors and alerts.

An IDS monitors network traffic for malicious activity and alerts administrators, without directly blocking that traffic.

EAP stands for Extensible Authentication Protocol, a framework supporting multiple authentication methods, often used with 802.1X.

SSL is the original cryptographic protocol for securing network communications, largely succeeded by TLS.

VPN stands for Virtual Private Network, creating an encrypted tunnel for secure communication over a public network.

BGP routes between autonomous systems, OSPF is a link-state interior protocol, EIGRP is a Cisco-originated advanced distance-vector protocol, and RIP is one of the oldest distance-vector protocols.

VRRP stands for Virtual Router Redundancy Protocol, an open standard alternative to HSRP for gateway redundancy.

HSRP is Cisco's proprietary First Hop Redundancy Protocol, allowing routers to share a virtual default gateway.

SVI stands for Switch Virtual Interface, a logical Layer 3 interface for a VLAN on a Layer 3 switch.

LACP negotiates and manages combining multiple physical links into a single logical link for increased bandwidth and redundancy.

VTP stands for VLAN Trunk Protocol, used to propagate VLAN configuration information across switches.

RSTP is a faster-converging evolution of the original Spanning Tree Protocol.

STP stands for Spanning Tree Protocol, which prevents Layer 2 loops by selectively blocking redundant paths.

MPLS stands for Multiprotocol Label Switching, a technique that speeds up and shapes traffic flows using labels instead of long network address lookups.

IS-IS is a link-state interior routing protocol similar in concept to OSPF, commonly used by large service providers.

IGP stands for Internal (Interior) Gateway Protocol, a general category of routing protocols used within a single autonomous system.