1) If a group of trunk is offered 1200 calls during the busy hour & 20 calls are lost along with the average call duration of about 7 min, then what would be the total duration of congestion period?
a. 21.6 sec
b. 42.2 sec
c. 57.6 sec
d. 98.2 sec
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Answer
Explanation
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ANSWER: 57.6 sec
Explanation:
No explanation is available for this question!
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2) Which model of loss system allows the usage of Poisson distribution model for traffic analysis especially by assuming infinite number of users?
a. Lost Calls Cleared (LCC)
b. Lost Calls Returned (LCR)
c. Lost Calls Held (LCH)
d. None of the above
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Answer
Explanation
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ANSWER: Lost Calls Cleared (LCC)
Explanation:
No explanation is available for this question!
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3) Which type of holding time distribution is assumed for the voice conversation on telephone?
a. Constant
b. Exponential
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Exponential
Explanation:
No explanation is available for this question!
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4) If the queuing systems are connected in tandem configuration, what would be the nature of delay?
a. Commutative
b. Distributive
c. Cumulative
d. Deductive
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Answer
Explanation
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ANSWER: Cumulative
Explanation:
No explanation is available for this question!
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5) In analyzing the traffic performance, how is the number of trunk decided with the provision of the Grade of Service (GoS) especially for larger group?
a. By normal load condition
b. By overload condition
c. By underload condition
d. None of the above
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Answer
Explanation
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ANSWER: By overload condition
Explanation:
No explanation is available for this question!
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6) By which name/s is the Grade of Service (GOS) well-known?
a. Call congestion
b. Time congestion
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Call congestion
Explanation:
No explanation is available for this question!
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7) Percentage of occupancy can be defined as the percentage of _____ for which the server seems to be busy.
a. speed
b. distance
c. time
d. volume
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Answer
Explanation
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ANSWER: time
Explanation:
No explanation is available for this question!
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8) How is the relation between Erlang and CCS specified?
a. 1 Erlang = 36 CCS
b. 1 Erlang = 56 CCS
c. 1 Erlang = 76 CCS
d. 1 Erlang = 96 CCS
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Answer
Explanation
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ANSWER: 1 Erlang = 36 CCS
Explanation:
No explanation is available for this question!
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9) If a telephone exchange serves 1500 users with the average BHCA of about 9000 and CCR is about 50%, what would be the busy hour calling rate?
a. 2
b. 3
c. 4.5
d. 5
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Answer
Explanation
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ANSWER: 3
Explanation:
No explanation is available for this question!
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10) The ratio of number of successful calls to the number of call attempts is known as ______
a. Call Completion Rate (CCR)
b. Call Block Rate (CBR)
c. Busy Hour Call Rate (BHCR)
d. None of the above
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Answer
Explanation
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ANSWER: Call Completion Rate (CCR)
Explanation:
No explanation is available for this question!
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