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IT Foundations > Chapter 5 Acronyms and Definitions > Flashcards

Chapter 5 Acronyms and Definitions Flashcards

1
Q
A
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2
Q

IXP

A

Internet Exchange Points

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3
Q

PoP

A

Point of Presence

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4
Q

PSTN

A

Public Switched Telephone Network

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5
Q

What is PSTN

A

Global Network Connecting National telecommunications systems

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6
Q

POTS

A

Plain Old Telephone System

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7
Q

What is POTS

A

Parts of a telephone network local loop that use voice-grade cabling. Analog data transfer over POTS using dial up modems us slow

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8
Q

ADSL

A

Asymmetric DSL

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9
Q

CATV

A

Cable Access TV

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10
Q

HFC

A

Hybrid Fiber Coax

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11
Q

DOCSIS

A

Data over cable service interface specification

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12
Q

CMTS

A

Cable Modem Termination System

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13
Q

What is FTTx

A

Projects to update the copper wiring in the last mile with fiber optic links

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14
Q

FTTC

A

Fiber To The Curb

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15
Q

FTTP

A

Fiber To The Premises

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16
Q

what is FTTP

A

the service providers fiber optic cable is run all the way to the customers building.

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17
Q

PON

A

Passtive Optical Network

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18
Q

OLT

A

Optical Line Terminal

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19
Q

ONT

A

Optical Network Terminal

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20
Q

RTT

A

Round Trip Time

(latency)

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21
Q

What is RTT

A

two-way latency, or the time taken for a probe to be sent and a response to be received

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22
Q

VSAT

A

Very Small Aperature Terminal

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23
Q

What is a VSAT

A

a satellite dish antenna to give satellite internet service

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24
Q

DVB-S

A

Digital Video Broadcast Satellite (Modem)

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25
Q

LEO

A

Low Earth Orbit

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26
Q

WISP

A

Wireless Internet Service Provider

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27
Q

LoS

A

Line of Sight

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28
Q

GSM

A

Global System for Mobile communication

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29
Q

CDMA

A

Code Division Multiple Access

30
Q

CDMA

A

Code Division Multiple Access

31
Q

SIM

A

Subscriber Identity Module

32
Q

UMTS

A

Universal Mobile Telecommunications Service

33
Q

EV-DO

A

Evolution Data Optimized

34
Q

HSPA

A

High Speed Packet Access

35
Q

LTE

A

Long Term Evolution

36
Q

ACL

A

access control list

37
Q

UTM

A

Unified Threat Management

38
Q

TCP / IP

A

Transmission Control Protocol / Internet Protocol

39
Q

What is a protocol?

A

A set of les that allows networked hosts to communicate data in a structured format.

40
Q

What is a protocol Suite?

A

Several protocols used together.

41
Q

What is a frame?

A

On an Ethernet or Wi-Fi segment, data at the link layer is packaged in a unit called a frame.

42
Q

What is an ‘end system host’

A

A PC, laptop, mobile device, or server that can communicate on an IP network

43
Q

ARP

A

Address Resolution Protocol

44
Q

What does ARP do? Address Resolution Protocol

A

Allows a host to query which MAC address is associated with an IP address

Network protocol that connects a devices ip address to its physical Mac address

45
Q

TCP

A

Transmission Control Protocol

46
Q

UDP

A

User Datagram Protocol

47
Q

What is a default gateway parameter

A

IP configuration parameter that identifies the address of a router on the local subnet that the host can use to contact other networks

48
Q

NAT

A

Network Address Translation

49
Q

What is NAT or network address translation

A

Routing mechanism that conceals internal addressing schemes from the public internet by translating between a single public address on the external side of a router and private, non-routable addresses internally

50
Q

DHCP

A

Dynamic Host Configuration Protocol

51
Q

APIPA

A

Automatic Private IP Addressing

52
Q

What is APIPA

A

Mechanism for windows hostst configured to obtain an IP address automatically that cannot contact a DHCP server to revert to using an adress from the range 169.254.x.y

53
Q

What is a nibble?

A

A 4-byte binary value (Referring to IPv6 addressing)

54
Q

SLAAC

A

StateLess Address Auto Configuration

55
Q

ND

A

Neighbor Discovery

56
Q

What is SLAAC?

A

IPv6 addresses aren’t usually configured statically, most hosts obtain a global and link-local address via the local router

57
Q

What is ND

A

Neighbor Discovery, used with IPv6 addressing, used to implement SLAAC, allows a host to discover a router, and performs the interface address querying functions

58
Q

What is Dual Stack?

A

When hosts and routers operate both IPv6 and IPv4 at the same time.

59
Q

ACK

A

Acknowledge
(Packets, specifically packets sent with TCP protocols)

60
Q

ACK

A

Acknowledge
(Packets, specifically packets sent with TCP protocols)

61
Q

NACK

A

Negative Acknowledgement
(Packets, Specifically packets being sent through TCP protocol)

62
Q

HTTP / HTTPS

A

HyperText Transfer Protocol / HyperText Transfer Protocol Secure

63
Q

DHCP

A

Dynamic Host Configuration Protocol

64
Q

TFTP

A

Trivial File Transfer Protocol

65
Q

What is a host name?

A

Every device is issued a unique IP but since numbers are harder to memorize, they also each receive a unique host name which uniquely identifies the device as well with common language. Host name is unique only to the local network, whereas IP is unique to any device

66
Q

TLD

A

Top Level Domain

67
Q

MX

A

Mail Exchanger

68
Q

SPF

A

Sender Policy Framework

69
Q

DKIM

A

DomainKeys Identified Mail

70
Q

DMARC

A

Domain-based Message Authentication, Reporting, and Conformance

71
Q

VLAN

A

Virtual LAN

IT Foundations (18 decks)

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