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Lesson 9: WAN Infrastructure
Network +
27
Computer Networking
12th Grade
05/02/2011

Additional Computer Networking Flashcards

 


 

Cards

Term
Circuit switching networks
Definition
single path from one endpoint to another is built when a connection is needed.
Term
(PVC) Permanent Virtual Circuits
Definition
Usually associated with leased lines. Connect two endpoints and are always on
Term
Switched Virtual Circuits (SVCs)
Definition
Associtaed with dial-up and demand-dial connections.
Term
Packet Switching Networks
Definition
move data through the network packet by packet.
Term
Cell switching networks
Definition
very similar to packet switching networks except that data is divided into fixed-length packets.
Term

Digital Subscriber Line (DSL)

Definition

group of technologies that transmit digital signals over existing phone lines. 

 

Term
Dedicated\Leased Lines
Definition
telephone company provides a dedicates connection between two endpoints that companies use to provide high-quality connection between two locations
Term
Integrated Services Digital Network (ISDN)
Definition
digital circuit switching technology that carries both voice and data over digital phone lines or PSTN wires.
Term
Basic Rate Interface (BRI)
Definition

2B+D

Bearer Channels Carry data

Delta Control info connection establishment and break down

Term
(PRI)
Definition

23B+D

Delta B+D = 64k
24+64k

Term
Dial-Up
Definition
Connection that use modems, existing phone lines, existing long-distance carrier services to provide low-cost, low-bandwidth WAN connectivity and remote network access.
Term
Frame Relay
Definition
packet switching implementation developed to efficiently transmit digital information
Term

X.25

Definition

legacy packet switching network technology developed in the 1970s to move data across the less-than-reliable long-distance public carriers available at that time.

Term
DTE
Definition

end devices used on a frame relay

often a router

Term
Asynchronous Transfer Mode (ATM)
Definition

versatile, cell switching network technology designed for deployment in LANs, WANs and telephone networks.

high bandwidth

53 byte cell

bandwidth 51.84 Mbps to 2.488 Gbps

capability to carry data, voice, and video simultaneously on the same channels.

Built in (QoS) Quality of Service

support real-time

Term
MPLS
Definition

both circuit and packet switched networks starting to replace both ATM + F.R.

can carry IP packets, ethernet ATM and sonet traffic.

Term
T-Carries
Definition

designed to carry multiplexed telephone connections

 

Term
Synchronous Optical Network (Sonet)
Definition

transport over fiber optic cable

Excellent bandwidth

built-in fault recovery

Speeds up to 2.48 Gbps

OC and STS Specifications

Self-healing dual-fiber ring

Term
Optical Carrier (OC)
Definition
channelized technology based on the same 64 Kbps channel as DSH but with a base rat of 810 channels.
Term
WiMax
Definition

IEEE 802.16

operates in frequency ranges between 2 and 11 GH*z

Term
Mux (Multiplexer)
Definition
used to combine multiple data signals onto WAN transmission media, such as fiber or T1 lines, to use the physical link in the most efficient way possible.
Term
Internet Connection Sharing (ICS)
Definition
connectivity technique for ac computer systems that connects multiple computers to the internet by using a single internet connection,
Term
Voice over Data system
Definition
communication systems that replace traditional telephone links by transmitting analog voice communications over digital WAN networking technologies.
Term
Voice over IP (VoIP)
Definition
Voice over Data implementation in which voice signals are transmitted over IP networks.
Term
Session Initiation Protocol (SIP)
Definition
Responsible for signaling port of VoIP
Term
Real-time Transport Protocol
Definition
Transmits audio or video content and defines the packet for delivery including the type of content, sequence numbering, time stamping and delivery monitoring.
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