Dependability and Security

Which of the following is not a functional reliability requirement for a system ?

Byadmin February 3, 2019August 18, 2021

Which of the following is not a functional reliability requirement for a system ?

A. Checking requirements
B. Recovery requirements
C. Redundancy requirements
D. Ambiguous requirements

Explanation: All the options are correct except option d.

Dependability and Security

Controls that are intended to ensure that attacks are unsuccessful is analogous to ______________ in dependability engineering?

Controls that are intended to ensure that attacks are unsuccessful is analogous to ______________ in dependability engineering?

A. Fault avoidance
B. Fault tolerance
C. Fault detection
D. Fault Recovery

Explanation: In Fault avoidance the system is developed in such a way that human error is avoided and thus system faults are minimised.

Read More Controls that are intended to ensure that attacks are unsuccessful is analogous to ______________ in dependability engineering?
Dependability and Security

Consider a case where the failure of the system causes damage to the system itself or it data. What type of failure is being described here ?

Consider a case where the failure of the system causes damage to the system itself or it data. What type of failure is being described here ?

A. Loss of service
B. Incorrect service delivery
C. System/data corruption
D. None of the mentioned

Read More Consider a case where the failure of the system causes damage to the system itself or it data. What type of failure is being described here ?
Dependability and Security

Circumstances that have potential to cause loss or harm is known as___________________?

Circumstances that have potential to cause loss or harm is known as___________________?

A. Attack
B. Threat
C. Vulnerability
D. Control

Explanation: The answer is self explanatory.

Read More Circumstances that have potential to cause loss or harm is known as___________________?
Dependability and Security

Which of the following is incorrect with respect to Model Checking ?

Which of the following is incorrect with respect to Model Checking ?

A. Model checking is particularly valuable for verifying concurrent systems
B. Model checking is computationally very inexpensive
C. The model checker explores all possible paths through the model
D. All of the mentioned

Explanation: Model checking is very expensive.It is only practical to use it in the verification of small to medium sized critical systems.

Read More Which of the following is incorrect with respect to Model Checking ?
Dependability and Security

Exception handling is a mechanism to provide some fault avoidance ?

Exception handling is a mechanism to provide some fault avoidance ?

A. True
B. False

Explanation: Exception handling is a mechanism to provide some fault tolerance.

Read More Exception handling is a mechanism to provide some fault avoidance ?
Dependability and Security

A password checking system that disallows user passwords that are proper names or words that are normally included in a dictionary is an example of ________________ with respect to security systems?

A password checking system that disallows user passwords that are proper names or words that are normally included in a dictionary is an example of ________________ with respect to security systems?

A. risk
B. control
C. attack
D. asset

Explanation: A control protective measure that reduces a system’s vulnerability.

Read More A password checking system that disallows user passwords that are proper names or words that are normally included in a dictionary is an example of ________________ with respect to security systems?

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