Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

NJR 10

isqa 380

Question	Answer
4) The telephone system as we now describe it is referred to as the public switched telephone network (PSTN).	T	F
5) Further improvements in signal quality and reductions in costs were made as fiberoptic cable began replacing copper cable. AT&T installed the first commercial fiber-optic cable for telephone use in 1977.	T	F
6) To define and delineate the difference between local and long-distance service, the geographic area covered by each RBOC was divided into regions called local access and transport areas (LATAs).	T	F
7) As we have seen, LECs provide local telephone service: the connection from each home or office to the telephone system. These are the familiar wires often seen on telephone poles in suburban areas that are known as local loops or subscriber lines.	T	F
8) The Telecomm Act of 1996 aimed at increasing phone service competition further. Congress took note of changes that had occurred in tech since 1984 and the effect they were having on the telecomm market place. In response, they viewed both local and lon	T	F
9) Telephone service within a LATA (intra-LATA) was defined as local, and service between LATAs (inter-LATA) was defined as long distance. Intra-LATA service was provided by one telephone company, called a local exchange carrier (LEC), or common carrier.	T	F
10) The first intercontinental telephone service began in 1927 between New York City and London using radio transmissions. Only one call could be placed at a time, and the cost was $75 for the first three minutes.	T	F
11) To handle long-distance calls, interconnection carriers (ICCs) connect the LATAs.	F	T
8) The Telecomm Act of 1996 aimed at increasing phone service competition further. Congress took note of changes that had occurred in tech since 1984 and the effect they were having on the telecomm market place. In response, they viewed both local and lon	T	F
13) This point of entry into the telephone system, formally known as a Class 7 telephone office, forms the first part of the seven-level telephone network hierarchy. Class 7 offices always are owned and operated by LECs.	F	T
14) Significant improvement was achieved with the laying of the 1st transatlantic telephone cable in 1956. Not only did call quality improve, but the cable was able to handle 48 simultaneous calls at a significantly lower cost of only $12 for the 1st 3min	F	T
15) In 2006: Bell Atlantic, the sole surviving original RBOC, was purchased by the new AT&T–the result was called AT&T. (The new AT&T was formed in 2005 when SBC acquired AT&T, but it took the name AT&T instead of keeping the name SBC.)	T	F	should not be used without firewalls.
16) Cable modem	should not be used without firewalls.	have widely variable data rates, from under 2Mbps to over 6Mbps.	utilize Ethernet on the customer side.	cannot be used in conjunction with Cable TV.
17) In the telephone network hierarchy a Class 4 office (toll center) is in	the second layer.	the first layer.	the fourth layer.	the third layer.
18) Conversion from analog to digital is accomplished by	PCM.	POP.	TDM.	LEC.
19) Typically dynamic allocation is done by a	CPE.	T-3.	T-1.	PBX.
20) All subscribers are connected to	LECs.	IXCs.	POPs.	LATAs..
21) The technology originally developed by Bellcore and utilized to avoid installing costly repeaters was	very high bit-rate DSL.	Symmetric DSL.	high bit-rate DSL.	Asymmetric DSL.
22) The Telecommunications ACT of 1996 was aimed at	increasing competition in telephone service.	breaking up AT&T.	separating mobile telephony from wired telephony.	insuring that a fiber-optic infrastructure would be created.
23) When time slots are taken from a customer using call waiting service, this function is called	bit-robbing.	in-band signaling.	out-of-band signaling.	discrete multitone.
24) ISDN was replaced by	DSL.	SONET.	PBX.	LEC.
25) Typical local loop telephone service is known as	POTS.	BOC.	LATA.	RBOC
26) The public switched telephone network	facilitates interconnection of LECs with IXCs.	carries local phone service.	is a hierarchical structure.	is not readily available to most customers.
27) A standard for the provision of ADSL was	CAP.	carrier amplitude/phase modulation.	DSLAM.	indiscrete multitone.
28) When a -1 circuit is leased, the telco requires the customer to connect via of a	CPE.	DSU.	CSU.	PBX.
29) The device that sits between the T-1 and the customer equipment is a	DSU.	CSU.	CPE.	B8ZS.
30) The primary center can be owned by	an LEC or an IXC.	an IXC.	an LEC.	a BOC.
1) The original seven baby bells are now three: AT&T, Quest, and Verizon.	T	F
2) The decree wrought major changes in how telephone service was provided in the us.AT&T was divested of its 23 loc phone companies, known as the Bell operating companiesBOCs). These were grouped into seven regional Bell operating companiesRBOCs)–Ameritec	T	F
3) Commercial telephone service in the United States began in 1877 with the formation of the Bell Telephone Company by the telephone's inventor, Alexander Graham Bell, and his two financial supporters, Gardiner Hubbard and Thomas Sanders.	T	F

Created by: gonzo1082

"Know" box contains:
Time elapsed:
Retries: