Question 1

How does cut-through switching work?

Accepted Answer

The answer of How does cut-through switching work?...

Question 2

What is static routing?

Accepted Answer

The answer of What is static routing?...

Question 3

____ is the guaranteed minimum transmission rate that the frame relay service provider offers.
A)CIR
B)PCM
C)PVC
D)CSU

Accepted Answer

CIR (Committed Information Rate) is the guaranteed minimum transmission rate that the frame relay service provider offers. PCM (Pulse Code Modulation) and CSU (Channel Service Unit) are not related to this concept, and PVC (Permanent Virtual Circuit) refers to the dedicated virtual path between two endpoints in a frame relay network.

Question 4

To establish a WAN link to remote computers and networks, a LAN can use the same telecommunications network you use to talk on the phone; this network is often referred to as public switched telephone network (PSTN)or ______________________________ (POTS).

Accepted Answer

The answer of To establish a WAN link to remote...

Question 5

Subscribing to one or more channels instead of an entire T1 is possible with a service called ____________________ T1.

Accepted Answer

The answer of Subscribing to one or more channels instead...

Question 6

One type of frame error that can occur in a network is a(n)____________________, in which the frame is damaged because of a collision or a malfunctioning device, such as a NIC or hub.

Accepted Answer

The answer of One type of frame error that can...

Question 7

____________________ (DDS)lines are direct or point-to-point synchronous communication links with 2.4, 4.8, 9.6, or 56 Kbps transmission rates.

Accepted Answer

The answer of ____________________ (DDS)lines are direct or point-to-point synchronous...

Question 8

____ virtual circuits are similar to leased lines, in that the pathway between two communication points is established as a permanent logical connection; therefore, the pathway exists even when it's not in use.
A)Automatic
B)Switched
C)Permanent
D)Manual

Accepted Answer

Permanent virtual circuits (PVCs) are similar to leased lines in that the pathway between two communication points is established as a permanent logical connection. This means that the pathway exists even when it's not in use, just like a leased line. Switched virtual circuits (SVCs), on the other hand, do not provide a permanent logical connection and are only established when needed. Automatic and manual virtual circuits are not types of virtual circuits.

Question 9

The organization building the WAN is always referred to as the customer, and the equipment at the customer site that's usually the responsibility of the customer is called the ____.
A)NT
B)DCE
C)CSU/DSU
D)CPE

Accepted Answer

CPE stands for Customer Premise Equipment and refers to the equipment that is usually the responsibility of the customer and installed at their site, such as routers, switches, and modems. NT refers to Network Terminal, which is a type of equipment used by telecommunications companies to connect customer equipment to their network. DCE stands for Data Communications Equipment, which can refer to various devices used for transmitting data, but is not specific to customer equipment. CSU/DSU stands for Channel Service Unit/Data Service Unit, which is a device used to connect a customer's equipment to a digital leased line provided by a telecommunications company.

Question 10

The device that sends data to (and receives data from)the local loop is called ____.
A)NT
B)DCE
C)CSU/DSU
D)CPE

Accepted Answer

The answer of The device that sends data to (and...

Question 11

Developed in the mid-1970s, the ____ specification provided an interface between public packet-switching networks and their customers.
A)ISDN
B)T1
C)V.90
D)X.25

Accepted Answer

The X.25 specification provided an interface between public packet-switching networks and their customers, including features such as error correction and flow control. ISDN, T1, and V.90 are all related to telecommunications and networking technology, but they do not specifically refer to this interface specification.

Question 12

How does store-and-forward switching work?

Accepted Answer

The answer of How does store-and-forward switching work?...

Question 13

The connection between the demarcation point and the CO is called the local loop or ____________________.

Accepted Answer

The answer of The connection between the demarcation point and...

Question 14

A(n)____________________ occurs when so many broadcast frames are sent on the network that other types of traffic can't be processed.

Accepted Answer

The answer of A(n)____________________ occurs when so many broadcast frames...

Question 15

____ is a digital communications technology developed in 1984 to replace the analog telephone system.
A)Switched 56K
B)ISDN
C)T1
D)T3

Accepted Answer

ISDN (Integrated Services Digital Network) is a digital communications technology developed in 1984 to replace the analog telephone system. Switched 56K, T1, and T3 are also digital communications technologies, but they were developed before ISDN and were not specifically developed to replace the analog telephone system.

Question 16

With respect to a modem, what is asynchronous communication?

Accepted Answer

The answer of With respect to a modem, what is...

Question 17

____ virtual circuits are established when needed and then terminated when the transmission is completed.
A)Automatic
B)Switched
C)Permanent
D)Manual

Accepted Answer

Switched virtual circuits are established on demand and terminated after the transmission is completed, making them a more flexible and efficient option compared to permanent virtual circuits which are always available and require dedicated resources. Automatic and manual virtual circuits do not exist as separate types, but instead refer to the methods by which virtual circuits are established and managed.

Question 18

A(n)____ line has 28 T1s or 672 channels and supports a data rate of 44.736 Mbps.
A)switched 56K
B)ISDN
C)T1
D)T3

Accepted Answer

A T3 line has 28 T1 lines, which equals 672 channels, and it supports a data rate of 44.736 Mbps.

Question 19

What is a transparent bridge?

Accepted Answer

The answer of What is a transparent bridge?...

Question 20

____ leased lines are an older, digital, point-to-point communication link offered by local and long-distance telcos.
A)Switched 56K
B)ISDN
C)T1
D)T3

Accepted Answer

The answer of ____ leased lines are an older, digital,...

Quiz 13: Enterprise and Wide Area Networks

How does cut-through switching work?

What is static routing?

____ is the guaranteed minimum transmission rate that the frame relay service provider offers.

To establish a WAN link to remote computers and networks, a LAN can use the same telecommunications network you use to talk on the phone; this network is often referred to as public switched telephone network (PSTN)or ______________________________ (POTS).

Subscribing to one or more channels instead of an entire T1 is possible with a service called ____________________ T1.

One type of frame error that can occur in a network is a(n)____________________, in which the frame is damaged because of a collision or a malfunctioning device, such as a NIC or hub.

____________________ (DDS)lines are direct or point-to-point synchronous communication links with 2.4, 4.8, 9.6, or 56 Kbps transmission rates.

____ virtual circuits are similar to leased lines, in that the pathway between two communication points is established as a permanent logical connection; therefore, the pathway exists even when it's not in use.

The organization building the WAN is always referred to as the customer, and the equipment at the customer site that's usually the responsibility of the customer is called the ____.

The device that sends data to (and receives data from) the local loop is called ____.

Developed in the mid-1970s, the ____ specification provided an interface between public packet-switching networks and their customers.

How does store-and-forward switching work?

The connection between the demarcation point and the CO is called the local loop or ____________________.

A(n)____________________ occurs when so many broadcast frames are sent on the network that other types of traffic can't be processed.

____ is a digital communications technology developed in 1984 to replace the analog telephone system.

With respect to a modem, what is asynchronous communication?

____ virtual circuits are established when needed and then terminated when the transmission is completed.

A(n) ____ line has 28 T1s or 672 channels and supports a data rate of 44.736 Mbps.

What is a transparent bridge?

____ leased lines are an older, digital, point-to-point communication link offered by local and long-distance telcos.