Telecom Flashcards
The time value of information TVI is a concept meant to express which of the following?
The fact that its not only important what information you obtain and how accurate it is but how soon you receive it.
Which of the following are examples of communications as referred to in this course
The transfer of meaningful information from one location to a second location. Communications at a distance. And communications by electrical or electromagnetic means
The difference between reliability versus availability can be explained as follows
Both availability and reliability are quantitative assessments of a systems performance
Which of the following is the best answer that explains the difference between data and information
Data and information are not the sme thing the information convoyed depends on the meaning assigned to data
The basic elements of a telecommunications system are
Transmitter, medium, receiver
Some requirements of the public telephone system would be
Available when you need it and trouble free and reliable. Easy to use and learn. Universal
The following are examples of communications that must employ real time or nearly real time communications
Full duplex voice call, television broadcast, control application
T or f in the us the telecommunications industry has consisted of public government owned companies that were the subject of regulation whereas in most other countries the telecommunications industry is operated by a private company
False
Who invented the telephone and when was it patented
Alexander graham bell 1876
What was the name of the telephone company that in 1885 was established to provide long distance intercommunications for bell franchised phone companies making universal service ie phone calls from any region to any region possible
AT&T
In what year did the original bell patents expire
1893
The official government reason for regulation in the early days (pre 1900s to 1920) of the telephone systems were
To ensure that start up fledgling companies could get started and to protect their investment
Other reasons for regulation and or were
System wide compatibility, prevention of interface thus promoting reliable telecommunications
What agency currently regulates radio and tv spectrums to prevent or mitigate interference
Federal Communications Commission
T/F AT&T is the only telecommunications company currently not regulated by the FCC
False
T/F in the US. It is legal to own and operate a monopoly
True
Under the kingsbury commitment, AT&T Vice President, Nathan c kingsbury relented and agreed to do….
Dispose of its stock in western union, allow independent telephone companies to interconnect to its facilities, get approval from the icc before acquiring any additional independent telephone companies
The kingsbury commitment is significant for what reason
It made it possible for all communications companies to be interconnected into one nation wide network
AT&T long distance interconnections together with the franchised bell telephone companies formed or I prided what entity
The bell system
Which act of congress declared it unlawful for a company to thwart competition
The Sherman antitrust act
Which act of congress recognized AT&T monopoly
None listed
The telecommunication act of 1934 established which federal agency
The Federal Communications Commission FCC
The FCC is responsible and has jurisdiction over the regulation of telecommunications fr what
Interstate and international communications
The FCC is not an independent agency and is not a cabinet level department T /F
True
How are the FCC appointed
By president of US
Tariffs are taxes on telecommunications services that cross state boundaries T/F
False
This event kept AT&T out of the data processing or computer business but allowed it o keep Western electric
The AT&T consent decree
The carter fine decision FCC. Decision which allowed the interconnection of private radio systems with the telephone system took plac in what year
1968
The MCI decision resulted in what
MCI microwave communications incorporated was allowed to get into the long distance business
Computer inquiry 1was significant because it did what
Said that the data processing industry was not the subject of call by the FCC
In 1971 the FCC declared that with few restrictions anyone could get into the. Satellite business what was the decision called
None listed
The essential difference between analog and digital is
Analog all ranged value valid, digital only discrete values are
In 1981 computer inquiry 2 was significant for what reason
All above
Which caused breakup of bell system and formation of the seven regional bell telephone companies
The modified final judgement and divestiture
Equal access point at the telephone central office within Lata where the long distance companies provide which interconnects to the local phone system
point of presence POP
QAM is a technology that combines what
Amplitude and phase modulation
Channel only supports 1000 baud what is the best modulation scheme to allow to send at least 10 k bit per sec through channel
2048-QAM
A square wave is sent into a cable after one mile the wave form is examined and found to be rounded off at the corners what causes it
Higher order harmonic series
With fm the amplitude of information signal controls …?
The frequency of the carrier
Under the telecommunications act of 1934 could AT&T offer local phone service
No
In a de ision announced in 1986 and reaffirmed in 1987 the FCC ordered that the BOC and AT&T can offer unregulated enhanced services if the companies agree to a complex set of provisions was called….
Computer inquiry 3
Mean time between failures is an expression relating directly to which parameter of a telecommunication system
Reliability
Under provisions of the telecommunications act 1996 it is finally possible for long distance companies to do what
Offer local services
T/F the telecom act 1934 is designed to promote more ok petition in the telecom industry and gives the ability for local phone companies to offer long distance
False
Prior to the telecom act 1996 what entity can carry phone calls across Lata boundaries
Long distance carriers
