Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
High-Level Data Link Control
|
HDLC
|
|
|
DTE
|
Data Terminal Equipment
|
|
|
DCE
|
Data-Circuit Terminating Equipment
|
|
|
End of the WAN provider side of the communication facility
|
DCE
|
|
|
in a WAN the main function of a router is?
|
To trasmit data using layer 3 addresses
|
|
|
Where does routing occur
|
At the network layer
|
|
|
When a router uses the physical and data link layer standards and protocols that are associated with WANs, it is
|
Operating as a WAN device
|
|
|
In a WAN the router provides
|
Connections between various WAN physical and data link standards
|
|
|
WAN physical layer standard for interface between DTE and DCE, is essentially the same as EIA/TIA-232
|
v.24
|
|
|
ITU standard for high-speed synchronous data exchange, in U.S. it is the used by most routers and DSUs to connect to T-1
|
V.35
|
|
|
ITU standard for serial comunicatrion over synchronous digital lines, used mainly in Europe and Japan
|
X.21
|
|
|
ITU-T electrical and mechanical specifications for connections between telephone company equipment and DTE using BNC connectors and operating at E1 data rates
|
G.703
|
|
|
Refers to two electrical implementations of EIA/TIA-449: RS-422 (for balanced transmission) and RS-423 (for unbalanced transmission).
|
EIA-530
|
|
|
A communication protocol, offered by telephone companies, that permits telephone networks to carry data, voice, and other source traffic.
|
Integrated Services Digital Network
|
|
|
ISDN
|
Integrated Services Digital Network
|
|
|
Digital WAN carrier facilities
|
T1, T3, E1, and E3 layer 1
|
|
|
Digital Subscriber Line (collectively)
|
xDSL layer1
|
|
|
Synchronuous Optical Network
|
SONET (OC-3, OC-12, OC-48, OC-192)layer1
|
|
|
Bit-oriented synchronous data link layer protocol developed by ISO.
|
High-level data link control (HDLC) layer 2
layer 2 |
|
|
High-level data link control
|
HDLC
layer 2 |
|
|
switched data link layer protocol that handles multiple virtual circuits using HDLC encapsulation between connected devices
|
Frame Relay
layer 2 |
|
|
provides router-to-router and host-to-network connections over synchronous and asynchronous circuits.
|
Point-to-Point Protocol (PPP)
layer 2 |
|
|
a bit-oriented, full-duplex serial protocol
|
Synchronous Data Link Control (SDLC)
layer 2 |
|
|
A standard protocol for point-to-point serial connections using a variation of Transmission Control Protocol/Internet Protocol (TCP/IP).
|
Serial Line Internet Protocol (SLIP)
layer 2 |
|
|
a data link layer protocol, and packet level protocol
|
X.25
layer 2 |
|
|
Asynchronous transfer mode
|
ATM
|
|
|
standard for cell relay in which multiple service types, such as voice, video, or data, are conveyed in fixed-length (53-byte) cells
|
ATM
|
|
|
Link Access Procedure Balanced
|
LAPB
|
|
|
The data-link layer protocol in the X.25 protocol stack
|
LAPB
|
|
|
The ISDN data-link layer protocol for the D channel.
|
LAPD
|
|
|
The data-link layer protocol used by Frame Relay as defined in ITU-T Recommendation Q9.222 and ANSI T1.618
|
LAPF
|
