Network+ Guide To Networks Chapter 11 - Wide Area Networks

Front 1

WAN's can use either ______-______ or ______-______ connections.

Back 1

circuit-switched; packet-switched

Front 2

A WAN in which each site is directly connected to no more than two other sites in a serial fashion is known as what?

Back 2

A bus topology WAN

Front 3

Each site is connected to two other sites so that the entire WAN forms what type of topology?

Back 3

Ring topology WAN

Front 4

In this WAN topology a single site acts as the central connection point for several other points.

Back 4

Star topology WAN

Front 5

This type of WAN topology incorporates many directly interconnected sites. If one connection suffers a problem, routers can redirect data easily and quickly.

Back 5

Mesh topology WAN

Front 6

In this type of WAN topology, sites connect in star or ring formations are interconnected at different levels, with the interconnection points being organized into layers to form hierarchical groupings.

Back 6

Tiered topology WAN

Front 7

PSTN

Back 7

Public Switched Telephone Network

Front 8

POTS

Back 8

Plain Old Telephone Service

Front 9

PON

Back 9

Passive Optical Network

Front 10

OLT

Back 10

Optical Line Terminal

Front 11

ONU

Back 11

Optical Network Unit

Front 12

ISDN

Back 12

Integrated Services Digital Network

Front 13

CO

Back 13

Central Office

Front 14

NIU or NID

Back 14

Network Interface Unit or Network Interface Device

Front 15

A telecommunications network that uses point-to-multi-point fiber to the premises in which powered optical spliters are used to enable a single optical fiber to serve multiple premises.

Back 15

PON (Passive Optical Network)

Front 16

The single endpoint at the carrier's centrol office is known as the networks ____________.

Back 16

OLT (Optical Line Terminal)

Front 17

A device with multiple optical ports, or PON interfaces, similar to interfaces on a router.

Back 17

OLT (Optical Line Terminal)

Front 18

A connection protocol used to connect WAN endpoints is known as what?

Back 18

PPP (Point to Point Protocol)

Front 19

A group of layer 2 connection oriented protocols defined by ITU and ANSI in 1984 which are relayed from one node to another without any verification or processing.

Back 19

Frame Relay

Front 20

Connections that are established when parties need to transmit, then terminated after the transmission is complete.

Back 20

SVC (Switched Virtual Circuit)

Front 21

Connections that are established before data needs to be transmitted and are maintained after the transmission is complete.

Back 21

PVC (Permanent Virtual Swith)

Front 22

An ISDN B channel employs circuit-switching techniques to carry voice, video, audio, and other types of dater over the ISDN connection. The maximum throughput of the B channel is?

Back 22

64 Kbps

Front 23

The customer's endpoint device on the WAN is called the ________________.

Back 23

DTE (Data Terminal Equipment)

Front 24

The carriers endpoint device for the WAN is called the _____________.

Back 24

DCE (Data Communications Equipment)

Front 25

Encompasses the entire telephone system.

Back 25

PSTN (Public Switched Telephone Network)

Front 26

The data rate of a particular SONET ring is indicated by its ____________ level, a rating that is internationally recognized by networking professionals.

Back 26

OC (Optical Carrier)