Paper 2 CS · UNIT 06 · MOCK TEST

Mock 11 – Quality, Reliability & Maintenance (Part 1)

Unit 6: Software Engineering · 22 questions · about 26 minutes. Press End Mock any time to see your score and the correct answers.

All 15 topic-wise mocks in this unit

0 / 22 answered 00:00

Q1.

Modifying the software to match change in the ever changing environment is called as

A(A) Adaptive maintenance B(B) Corrective maintenance C(C) Perfective maintenance D(D) Preventive maintenance

Q2.

Modifying the software by restructuring is called

A(A) Adaptive maintenance B(B) Corrective maintenance C(C) Perfective maintenance D(D) Preventive maintenance

Q3.

Software reliability is described with respect to
(A) Execution Time
(B) Calendar Time
(C) Clock Time
Choose the correct answer from the options given below:

A(A) (A) and (B) only B(B) (B) and (C) only C(C) (A), (B) and (C) D(D) (A) and (C) only

Q4.

According to the ISO-9126 Standard Quality Model, match List-I with List-II:
List-I (Attributes)
(a) Functionality
(b) Reliability
(c) Efficiency
(d) Maintainability
List-II (Definitions)
(i) Relationship between level of performance and amount of resources used
(ii) Characteristics related with achievement of purpose
(iii) Effort needed to make for improvement
(iv) Capability of software to maintain its level of performance
Choose the correct answer from the options given below:

A(A) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv) B(B) (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) C(C) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii) D(D) (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Q5.

Software Reuse is ________.

A(A) The process of analysing software with the objective of recovering its design and specification B(B) The process of using existing software artifacts and knowledge to build new software C(C) Concerned with re-implementing legacy systems to make them more maintainable D(D) The process of analysing software to create a representation of a higher level of abstraction

Q6.

Software products need adaptive maintenance for which of the following reasons?

A(A) To rectify bugs observed while the system is in use. B(B) When the customers need the product to run on new platforms. C(C) To support the new features that users want it to support. D(D) To overcome wear and tear caused by the repeated use of the software.

Q7.

Which of the following statements is/are true?
P: Software Reengineering is preferable for software products having high failure rates, having poor design and/or having poor code structure.
Q: Software Reverse Engineering is the process of analyzing software with the objective of recovering its design and requirement specification.

A(A) P only B(B) Neither P nor Q C(C) Q only D(D) Both P and Q

Q8.

Software products need perfective maintenance for which of the following reasons?

Q9.

A software has been observed to crash 20 times during the year 2017 and each time it took 2 minutes to restart. What is the approximate availability of the software?

A(A) 96.9924% B(B) 97.9924% C(C) 98.9924% D(D) 99.9924%

Q10.

Statistical software quality assurance in software engineering involves ______.

A(A) using sampling in place of exhaustive testing of software. B(B) surveying customers to find out their opinions about product quality. C(C) tracing each defect to its underlying cause, isolating the vital few causes, and moving to correct them. D(D) tracing each defect to its underlying causes, and using the Pareto principle to correct each problem found.

Q11.

A signal processor software is expected to operate for 91.25 days after repair, and the mean software repair time is expected to be 5 minutes. Then, the availability of the software is:

A(A) 96.9862% B(B) 97.9862% C(C) 98.9962% D(D) 99.9962%

Q12.

A server has 30 days mean time between failure (MTBF) and 12 hours mean time to repair (MTTR). The availability of the server is approximately:

A(A) 96.3% B(B) 97.3% C(C) 98.3% D(D) 99.3%

Q13.

Software safety is quality assurance activity that focuses on hazards that

A(A) affect the reliability of a software component B(B) may cause an entire system to fail C(C) may result from user input errors D(D) prevent profitable marketing of the final product

Q14.

The extent to which a software performs its intended functions without failures, is termed as ______.

A(A) Robustness B(B) Correctness C(C) Reliability D(D) Accuracy

Q15.

The extent to which a software tolerates the unexpected problems, is termed as:

A(A) Accuracy B(B) Reliability C(C) Correctness D(D) Robustness

Q16.

Which one of the following statements is incorrect?

A(A) Pareto analysis is a statistical method used for analyzing causes B(B) Reliability specifies the probability of failure-free operation for a given time duration C(C) System reliability can be specified as the Mean Time To Failure (MTTF) D(D) In white-box testing, test cases are decided from specifications or requirements

Q17.

Adaptive maintenance is a maintenance which ______.

A(A) corrects errors that were not discovered till the testing phase B(B) is carried out to port the existing software to a new environment C(C) improves the system performance D(D) both (2) and (3)

Q18.

In software testing, how are error, fault and failure related to each other?

A(A) Error leads to failure but fault is not related to error and failure B(B) Fault leads to failure but error is not related to fault and failure C(C) Error leads to fault and fault leads to failure D(D) Fault leads to error and error leads to failure

Q19.

Which of the following is an indirect measure of product?

A(A) Quality B(B) Complexity C(C) Reliability D(D) All of these

Q20. Match List I (Software Quality Characteristic) with List II (Description)

List I	List II
A. Reliability	I. Ability to transfer the software from one organization or hardware/software environment to another.
B. Efficiency	II. Capability of software to maintain its level of performance under stated conditions for a stated period of time.
C. Maintainability	III. Relationship between the level of performance of the software and the amount of resources used, under stated conditions.
D. Portability	IV. Effort needed to make modifications, including corrections, improvements or adaptation of software to changes in environment, requirements and functional specifications.

AA-II, B-III, C-I, D-IV BA-II, B-III, C-IV, D-I CA-III, B-II, C-I, D-IV DA-IV, B-II, C-I, D-III

Q21. The process followed in order to find difficult, unknown and hidden information about a software system is called

ASoftware Engineering BSoftware Re-Engineering CReverse Engineering DInverse Engineering

Q22. Which of the following is NOT a software characteristic?

ASoftware does not wear out BSoftware is flexible CSoftware is not manufactured DSoftware is always correct

Next: Mock 12 – Quality, Reliability & Maintenance (Part 2) →