Deck 26: Business Services

Question 1

Although many telephone companies do not charge residential customers a per-minute charge for telephone usage, they do charge business customers a per-minute usage charge for all local calls.

Answer 1

True

Question 2

Charging a per-minute cost for telephone service is called:

A) local measured unit (LMU)
B) wide area telephone service (WATS)
C) ISDN primary rate service
D) local measured service (LMS)

Answer 2

local measured service (LMS)

Question 3

InterLATA voice service involves calls traveling ________ LATAs and charged as InterLATA calls.

Answer 3

between

Question 4

Business customers should choose a long distance package based on all of the following criteria except:

A) number of outgoing calls
B) busiest time of day
C) number of incoming calls
D) calling patterns
E) where the calls are going
F) expected future call volume

Question 5

The main difference between 800 and 900 services is who pays for the call.

Question 6

Digital centrex offers many more features than analog centrex for about the same cost.

Question 7

The purpose of a centrex line is to provide special features similar to those supported on a(n) ________ or key system, thus eliminating the need for these at the customer location.

Question 8

Automatic identification of outward dialing is a feature of:

A) 800 number services
B) InterLATA voice services
C) wide area telephone services
D) centrex

Question 9

The biggest advantage centrex offers is:

A) reduction of maintenance costs
B) improved efficiency of business
C) insurance against purchasing obsolete equipment
D)the customer's ability to provision his or her own circuits
E) all of the above

Question 10

The disadvantage of using centrex is the monthly fee charged by the telephone company.

Question 11

ISDN BRI gives the customer ________ voice channel(s) and ________ data channel(s) on one wire pair.

A) one, one
B) two, one
C) two, two
D) one, two

Question 12

Which channel allows ISDN to offer multiple services?

A) B
B) C
C) D
D) H
E) any of the above

Question 13

Which channel permits high-speed Internet access?

A) B
B) C
C) D
D) H
E) all of the above

Question 14

Voice and data ________ allows users to talk on the phone and work on line at the same time.

Question 15

Many ________ customers purchase ISDN specifically to increase their access speed to the Internet.

Question 16

The terms "DOD trunks"and "DID trunks"are used interchangeably.

Question 17

The primary advantage of DID/DOD to business customers is:

A) user volume capability
B) speed of access to the Internet
C) service features
D) efficiency/cost savings

Question 18

________ describes the way that an incoming call seizes an idle circuit.

Question 19

A drawback of the call ________ feature is the risk of having an incoming call disconnect a data session unless the switch is turned off in advance of the session.

Question 20

Which of the following is not one of the three most common business features or value-added services offered by long distance telephone companies?

A) 800 numbers
B) conference calling
C) on-hook dialing
D) calling cards

Question 21

Custom local area signaling services (CLASS) features offered by local telephone companies are dependent on the SS-7 signaling network and are offered only if the switch is SS-7 capable.

Question 22

Dedicated voice services include those provided by all of the following except:

A) tie lines
B) FX circuits
C) OPX circuits
D) ISDN BRI
E) private voice networks
F) coin phones

Question 23

Foreign exchange (FX) circuits allow calls to a customer of one central office to ring in either one location or another.

Question 24

The circuit that is used to extend a station off a PBX is:

A) tie line
B) foreign exchange circuit (FX)
C)off premises exchange circuit (OPX)
D) none of the above

Question 25

The reason someone would want to use a coin phone is for its:

A) convenience
B) value-added features
C) low costs-per-minute
D) none of the above

Question 26

Dial-up data connections, ISDN BRI data connections, ISDN PRI connections, and switched 56 connections are all referred to as ________ data circuits.

Question 27

Dial-up data is simply a phone line with a(n) ________ on the end and is commonly used by small business customers for their data transmission needs.

Question 28

Which of the following makes ISDN BRI an attractive solution for the small business customer who needs to transmit data?

A) increased data speed
B) reliability of a digital circuit
C) its use as redundant links between routers or other data devices
D) all of the above
E) both a and b

Question 29

ISDN PRI is a circuit used by many small businesses to carry their data information.

Question 30

The advantages of ISDN PRI are the number of bearer channels allowed per circuit and the signaling channel used to handle all signaling events.

Question 31

Which of the following services was one of the first digital services offered to business customers and is now seldom used?

A) Switched 56
B) ISDN BRI
C) ISDN PRI
D) dial-up data

Question 32

The difference between a switched business service and a dedicated business service is that a switched service depends on the switch to connect the two points together, while dedicated circuits are always connected and do not go through a switch.

Question 33

A common example of a(n) ________ dedicated digital circuit is a bank interconnecting its remote ATMs with its mainframe.

Question 34

A good subscriber choice for the small business customer is:

A) FT1 circuit
B) full T1 circuit
C) T3 circuit
D) all of the above are good choices

Question 35

"Synchronous"in the DSL world means that the upstream and downstream line speeds are identical.

Question 36

The advantage of DSL is that it permits an always-on connection into the Internet along with a higher bit-per-second rate across the access circuit.

Question 37

The ________ circuit is the backbone circuit of the PSTN and the customer's network.

Question 38

Thanks to the deployment of ________ lines, the cost of the T1 circuit is dropping rapidly.

Question 39

The advantage of using a full OC rate pipe is its ability to carry traffic using dynamic ________ allocation.