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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
LEO
Low Earth Orbit
26
WISP
Wireless Internet Service Provider
27
LoS
Line of Sight
28
GSM
Global System for Mobile communication
29
CDMA
Code Division Multiple Access
30
CDMA
Code Division Multiple Access
31
SIM
Subscriber Identity Module
32
UMTS
Universal Mobile Telecommunications Service
33
EV-DO
Evolution Data Optimized
34
HSPA
High Speed Packet Access
35
LTE
Long Term Evolution
36
ACL
access control list
37
UTM
Unified Threat Management
38
TCP / IP
Transmission Control Protocol / Internet Protocol
39
What is a protocol?
A set of les that allows networked hosts to communicate data in a structured format.
40
What is a protocol Suite?
Several protocols used together.
41
What is a frame?
On an Ethernet or Wi-Fi segment, data at the link layer is packaged in a unit called a frame.
42
What is an ‘end system host’
A PC, laptop, mobile device, or server that can communicate on an IP network
43
ARP
Address Resolution Protocol
44
What does ARP do? Address Resolution Protocol
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
TCP
Transmission Control Protocol
46
UDP
User Datagram Protocol
47
What is a default gateway parameter
IP configuration parameter that identifies the address of a router on the local subnet that the host can use to contact other networks
48
NAT
Network Address Translation
49
What is NAT or network address translation
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
DHCP
Dynamic Host Configuration Protocol
51
APIPA
Automatic Private IP Addressing
52
What is APIPA
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
What is a nibble?
A 4-byte binary value (Referring to IPv6 addressing)
54
SLAAC
StateLess Address Auto Configuration
55
ND
Neighbor Discovery
56
What is SLAAC?
IPv6 addresses aren’t usually configured statically, most hosts obtain a global and link-local address via the local router
57
What is ND
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
What is Dual Stack?
When hosts and routers operate both IPv6 and IPv4 at the same time.
59
ACK
Acknowledge (Packets, specifically packets sent with TCP protocols)
60
ACK
Acknowledge (Packets, specifically packets sent with TCP protocols)
61
NACK
Negative Acknowledgement (Packets, Specifically packets being sent through TCP protocol)
62
HTTP / HTTPS
HyperText Transfer Protocol / HyperText Transfer Protocol Secure
63
DHCP
Dynamic Host Configuration Protocol
64
TFTP
Trivial File Transfer Protocol
65
What is a host name?
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
TLD
Top Level Domain
67
MX
Mail Exchanger
68
SPF
Sender Policy Framework
69
DKIM
DomainKeys Identified Mail
70
DMARC
Domain-based Message Authentication, Reporting, and Conformance
71
VLAN
Virtual LAN

IT Foundations (18 decks)

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