Question

The 'grade of service' in telephone traffic engineering refers to:

1.
The probability that a call is blocked due to congestion
2.
The number of extensions in an exchange
3.
The speed of call connection
4.
The quality of the voice signal
Answer (Detailed Solution Below)

Option 1 : The probability that a call is blocked due to congestion

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Detailed Solution

सही उत्तर The probability that a call is blocked due to congestion है।

Key Points

Grade of service is the probability that a call is blocked or delayed because all the circuits are busy. A grade of service of 0.01 means one call in a hundred is blocked during the busy hour.

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More Domain Specific Questions

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Question:

The 'grade of service' in telephone traffic engineering refers to:

1.
The probability that a call is blocked due to congestion
2.
The number of extensions in an exchange
3.
The speed of call connection
4.
The quality of the voice signal

Correct Answer: The probability that a call is blocked due to congestion

Grade of service is the probability that a call is blocked or delayed because all the circuits are busy. A grade of service of 0.01 means one call in a hundred is blocked during the busy hour.

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