High Availability Interview Questions

High Availability interview questions

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Total Questions: 5

1. Bathtub Curve is used to represent the reliability characteristics of hardware components. Why is this not applicable to software modules?

A. Software failures tends to stabilize and do not increase with respect to time

B. Software failures cannot be predicted

C. Hardware components do not fail for a long time

D. Software fails more compared to hardware

Correct Answer is : Software failures tends to stabilize and do not increase with respect to time

2. Which one of the below is measured by MTBF?

A. Tolerance

B. Life time

C. Reliability

D. Quality

Correct Answer is : Reliability

3. In designing a fault-tolerant system which one of the methods is appropriate?

A. Fail Safe

B. Fail Fast

C. Multi-Fail

D. Fail Rare

Correct Answer is : Fail Fast

4. A system has MTBF of 100,000 hours and MTTR of 30 minutes. What is the average down time of the system in one year?

A. 2.6 minutes

B. 1.8 minutes

C. 18 minutes

D. 30 minutes

Correct Answer is : 2.6 minutes

5. What is the most common redundancy configuration for HA?

A. N+1

B. N+M

C. 2N

D. 5N

Correct Answer is : N+1

High Availability interview questions