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Internet Technologies Flashcards

(60 cards)

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1
Q

WAN

A

Wide Area Network
A network that uses the telecommunications network to interconnect sites that are geographically distributed throughout a region, a country, or the world

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2
Q

HSSI

A

High-speed serial interface

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3
Q

OC

A

Optical carrier

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4
Q

DS

A

Digital Signal

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5
Q

Telco

A

The local telephone company

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6
Q

Telco Cloud

A

The telecommunications carrier’s switched network used to transport data to its destination; also the interconnected networks on the Internet

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7
Q

Multiplexed

A

Combined data packets for transport

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8
Q

POP

A

Point of Presence

The point where a customer connects network data traffic to a telecommunications carrier

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9
Q

Line of Demarcation

A

The point where ownership of telecommunications equipment changes from the telecommunications carrier to the user

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10
Q

CSU/DSU

A

Channel service unit/data service unit

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11
Q

HDLC

A

High-Level Data Link Control

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12
Q

PPP

A

Point-to-Point Protocol

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13
Q

V.44/V.34

A

The standard for all analog modem connections with a maximum data rate of up to 34Kbps; V.44 provides improved data compression, smaller file sizes that provide faster file transfers, and improved web browsing

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14
Q

V.92/V.90

A

The standard for a combination analog and digital modem connection with a maximum data rate of 56Kbps; V.92 provides a quick connect feature that cuts down on negotiation and handshake time compared to V.90

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15
Q

Asymmetric Operation

A

Modem operation in which the data transfer rates to and from the service provider differ

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16
Q

DOCSIS

A

Data Over Cable Service Interface Specification

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17
Q

Ranging

A

A technique that cable modems use to determine the time it takes for data to travel to the cable head end

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18
Q

ADSL

A

Asymmetric DSL
A service providing up to
1.544Mbps up
8Mbps down

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19
Q

DMT

A

Discrete Multitone

A multicarrier technique used to transport digital data over copper telephone lines

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20
Q

RAS

A

Remote access server

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21
Q

Client

A

A computer connected to a network that accesses services from the server

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22
Q

Peer

A

A computer that uses and provides resources to a network

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23
Q

Peer-to-Peer Network

A

A network in which all computers in the network provide similar services, including server functions

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24
Q

Client/Server Network

A

A network in which the server handles multiple requests from multiple clients for multiple services

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25
ME / CE
Metro Ethernet/Carrier Ethernet
26
Metro Ethernet
An extension of the Ethernet infrastructure beyond the internal network infrastructure
27
Carrier Ethernet
An extension of the Ethernet infrastructure that covers much more than just a metropolitan area
28
MEF
Metro Ethernet Forum | A nonprofit organization that defines Metro/Carrier Ethernet specifications
29
UNI
User-Network Interface
30
Ethernet Service Definition
A framework that defines the Ethernet service types
31
EVC
Ethernet Virtual Connection: | An association of two or more UNIs
32
E-Line
E-Line Service Type: | A service type that provides a point-to-point Ethernet virtual connection between two UNIs
33
E-LAN
E-LAN Service Type: | A service type that provides connectivity to two or more subscriber sites using the same EVC
34
E-Tree)
E-Tree Service Type: | A service type that provides more of a hub-and-spoke environment or a root-and-leaf environment
35
BOOTP
Bootstrap Protocol
36
DHCP
Dynamic Host Configuration Protocol
37
Unicast
A transmission in which a packet has a fixed destination
38
MT Discover
Message type discover, a DHCP Discover packet
39
MT Offer
Message type offer, a DHCP offer packet
40
MT Request
Message type request, a DHCP request packet
41
MT ACK
Message type acknowledgment, a DHCP ACK packet
42
SOHO
Small office/home office
43
NOC
Network operations center
44
DNS
Domain Name Service
45
Forward DNS (Forward Zone)
Translation of a name to an IP address
46
Reverse DNS (Reverse Zone)
Translation of an IP address to a name
47
TLD
Top-level domain
48
Country Domain
Usually, two letters, such as .us (United States) or .ca (Canada), that define the location of the domain server for a country
49
Root Servers
A group of servers that exist using well-known IP addresses that have been programmed into DNS servers
50
IANA
Internet Assigned Numbers Authority
51
ICANN
Internet Corporation for Assigned Names and Numbers
52
Domain Registrar
An organization that is authorized to register Internet domain names
53
PTR Record
Pointer Record PTR records are used for the reverse DNS lookup. Using the IP address, you can get the associated domain or hostname. The reverse of an "A Record"
54
"A Record"
An A record (Address Record) maps a domain name to the IP address (Version 4) of the computer hosting the domain. An A record is used to find the IP address of a computer connected to the internet from a name.
55
CNAME Record
Canonical Name Record: An alias of a hostname eg: google.co points to google.com NOTE: A CNAME record must always point to another domain name and never directly to an IP address.
56
NS Record
Name Server Record | A record that specifies the name of the authoritative name server of the domain
57
MX Record
Mail Exchange Record | A record that specifies the email-handling server of the domain
58
TXT Record
Text Record | A record that is used to hold arbitrary text information of the domain
59
SPF
Sender Policy Framework an email-authentication technique which is used to prevent spammers from sending messages on behalf of an unauthorized domain.
60
DKIM
Domain Keys Identified Mail an email authentication technique that allows the receiver to check that an email was indeed sent and authorized by the owner of that domain.

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