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IT > Acronyms > Flashcards

Acronyms Flashcards

0
Q

DNS

A

Domain Name System

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1
Q

EIGRP

A

Enhanced Internal Gateway Routing Protocol

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2
Q

DHCP

A

Dynamic Host Configuration Protocol

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3
Q

PVST+

A

Per-VLAN Spanning Tree Plus

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4
Q

STA

A

Spanning Tree Algorithm

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5
Q

BPDU

A

Bridge Protocol Data Units

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6
Q

PDU

A

Protocol Data Unit

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7
Q

NIC

A

Network Interface Card

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8
Q

IP

A

Internet Protocol

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9
Q

OSPF

A

Open Shortest Path First

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10
Q

AS

A

Autonomous System

A collection of networks within a common administrative domain

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11
Q

IGP

A

Internal Gateway Protocol

A dynamic routing protocol that operates within an autonomous system (eg: RIPv2, EIGRP, OSPF)

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12
Q

EGP

A

External Gateway Protocol

A dynamic routing protocol that serves to connect various autonomous systems (eg: BGP)

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13
Q

FHRP

A

First hop redundancy protocol

Provides default gateway redundancy

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14
Q

HSRP

A

Hot standby router protocol

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15
Q

VRRP

A

Virtual router redundancy protocol

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16
Q

GLBP

A

Gateway load balancing protocol

The Gateway Load Balancing Protocol feature provides automatic router backup for IP hosts configured with a single default gateway on an IEEE 802.3 LAN. Multiple first hop routers on the LAN combine to offer a single virtual first hop IP router while sharing the IP packet forwarding load. Other routers on the LAN may act as redundant GLBP routers that will become active if any of the existing forwarding routers fail.

17
Q

PAgP

A

Port aggregation protocol

Port Aggregation Protocol (PAgP) is a Cisco Systems proprietary networking protocol, which is used for the automated, logical aggregation of Ethernet switch ports, known as an etherchannel.

18
Q

LACP

A

Link aggregation control protocol

Link aggregation is a computer networking term to describe various methods of combining (aggregating) multiple network connections in parallel to increase throughput beyond what a single connection could sustain, and to provide redundancy in case one of the links fail.

19
Q

ARP

A

Address Resolution Protocol

 ARP is used to convert an IP address to a physical address such as an Ethernet address (also known as a MAC address). 

  If a destination device's hardware address isn't present within the sender's ARP cache, the sender will broadcast an ARP request that includes the destination IP address and a broadcast MAC address (FF:FF:FF:FF:FF:FF). The destination device responds with its MAC address.
20
Q

ISL

A

Inter-Switch Link

Cisco Inter-Switch Link (ISL) is a Cisco Systems proprietary protocol that maintains VLAN information in Ethernet frames as traffic flows between switches and routers, or switches and switches.

The term can also be used simply as another term for a trunk.

21
Q

ICMP

A

Internet Control Message Protocol

The Internet Control Message Protocol (ICMP) is one of the main protocols of the Internet Protocol Suite. It is used by network devices, like routers, to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages.[1] It is assigned protocol number 1.[2] ICMP[3] differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications (with the exception of some diagnostic tools like ping and traceroute).

22
Q

ABR

A

Area border router

In the OSPF dynamic routing protocol, an ABR is a router that sits between two areas that are in the same autonomous system.

23
Q

ASBR

A

Autonomous system boundary router

In OSPF, an ASBR is a router that sits between the backbone area and another autonomous system (if that AS uses a different dynamic routing protocol).

24
Q

LSA

A

Link-State Advertisement

Basic means of communication for routers using the OSPF DRP. Allows them to exchange network topology information.

25
Q

MAC address

A

media access control

26
Q

PPP

A

Point-to-Point Protocol

27
Q

PPPoE

A

Point-to-Point Over Ethernet

28
Q

DSL

A

Digital Subscriber Line

Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that provide internet access by transmitting digital data using a local telephone network which uses the Public switched telephone network.

DSL service is delivered simultaneously with wired telephone service on the same telephone line. This is possible because DSL uses higher frequency bands for data.

29
Q

ISDN

A

Integrated Services Detail Network

  Integrated Services for Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. 

  Prior to ISDN, the telephone system was viewed as a way to transport voice, with some special services available for data. The key feature of ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system.
30
Q

HDLC

A

High-Level Data Link Control

31
Q

NCP

A

Network Control Protocol

A Network Control Protocol is a protocol that runs atop the Point-to-Point Protocol (PPP) and that is used to negotiate options for a network layer protocol running atop PPP.

32
Q

LCP

A

Link Control Protocol

 The Link Control Protocol (LCP) forms part of the Point-to-Point Protocol (PPP), within the family of Internet protocols. In setting up PPP communications, both the sending and receiving devices send out LCP packets to determine the standards of the ensuing data transmission.

 The LCP protocol:

checks the identity of the linked device and either accepts or rejects the device
determines the acceptable packet size for transmission
searches for errors in configuration
can terminate the link if requirements exceed the parameters

33
Q

DCE

A

Data Communications Equipment

34
Q

DTE

A

Date Terminal Equipment

35
Q

MIB

A

Management Information Base

36
Q

NMS

A

Network Management Server

37
Q

IDS

A

Intrusion Detection System

38
Q

DTP

A

Dynamic Trunking Protocol

39
Q

CST

A

Common Spanning Tree (regular ST, as opposed to PVST+ or rapid PVST)

40
Q

VLSM

A

Variable length subnet mask

41
Q

DES

A

Data encryption standard

IT (33 decks)

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