Computer Knowledge

Software Testing and Quality Control

2,598 Questions

Software testing and quality control questions cover testing methodologies, unit testing, and defect management. These concepts are crucial for the computer knowledge sections of competitive exams. Practice these questions to understand verification and validation processes thoroughly.

Quality control typesUnit testing purposeSoftware vulnerability testingTest planning tasksLoop testing criteriaTest harness functions

Software Testing and Quality Control Questions

Multiple choice technology testing

What is Concurrency Testing ?

  1. Multi-user testing geared towards determining the effects of accessing the same application code, module or database records. Identifies and measures the level of locking, deadlocking and use of single-threaded code and locking semaphores.

  2. Concurrently designing & testing the application.

  3. Single user testing, determining the effects of accessing the same application.

  4. Mainly concurrency testing refers to testing the application once it is fully designed.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Concurrency testing is multi-user testing that evaluates what happens when multiple users or processes access the same application code, module, or database records simultaneously. It identifies locking issues, deadlocking problems, and single-threaded code that should be multi-threaded. Option A correctly describes this testing approach. Options B, C, and D incorrectly describe concurrent design, single-user testing, or post-design testing - none of these capture the essence of concurrency testing.

Multiple choice technology testing

What are the various status reports you will generate to Developers and Senior Management?

  1. Status reports are the elaborated results of testing cycle. These reports contain success of the product.

  2. Status reports are the brief results of end to end testing cycle. These reports contain success of the product.

  3. Status reports are the elaborated results of testing cycle. These reports contain success, warning and alerts of the product, just to ensure that there are no bugs in the product.

  4. Status reports are the brief results of end to end testing cycle. These reports contain success, warning and alerts of the product, just to ensure that there are no show stoppers or blockers or hiccups in the product.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Status reports provide concise summaries of end-to-end testing cycles, highlighting success metrics, warnings, and critical alerts. They help stakeholders quickly assess product quality and identify any showstoppers, blockers, or significant issues. Option D correctly captures this - brief results focusing on critical issues. Options A and B incorrectly omit warnings/alerts, while option C incorrectly states reports are elaborated and claim to ensure no bugs (impossible).

Multiple choice technology testing

What is End-to-End testing?

  1. Testing each end of the application.

  2. Testing a complete application environment in a situation that mimics real-world use, such as interacting with a database, using network communications, or interacting with other hardware, applications, or systems if appropriate.

  3. Testing each module of the application and make sure each of them is working fine.

  4. Testing each module of the application and making sure that none of them is having any bug.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

End-to-end testing validates a complete application flow in an environment that mimics real-world use, including interactions with databases, networks, hardware, and other external systems. Option B accurately describes this holistic approach. Options A and C are incomplete (testing only ends or modules), while option D focuses on bug-free modules rather than complete integrated workflows.

Multiple choice technology testing

If you think a piece of code should work one way, and the developer says it should work another way, what would you do to resolve the conflict?

  1. If there is a discrepancy in code then the best approach is to check the use case documents for functionality. If the functionality is misunderstood by the tester then he will not raise a bug and to make things clear he can involve the project manager.

  2. If there is a discrepancy in code then the best approach is to check the use case documents for bugs. If the functionality is misunderstood by the tester then he will not raise a bug and to make things clear he can involve the project manager.

  3. If there is a discrepancy in code then the best approach is to check the requirement documents for functionality. If the functionality is misunderstood by the tester then he will not raise a bug and to make things clear he can involve the business analyst

  4. If there is a discrepancy in code then the best approach is to check the requirement documents for functionality. If the functionality is misunderstood by the tester then he will not raise a bug and to make things clear he can involve the QA lead.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When there's a disagreement about expected functionality, the requirements documents are the authoritative source. If uncertainty remains after checking requirements, the business analyst is the right person to consult as they own the requirement definition. Options A and B incorrectly mention use case documents instead of requirements, and option D involves the QA lead who doesn't own requirements.

Multiple choice technology testing

What is Soak Testing ?

  1. Running a system for a long period of time. For example,running the application for 2-3 days.If the application doesnt work properly then it is sent back to the devlopment team .

  2. Soak testing refers to the testing of individual module of the application & making it error free.

  3. Running a system at high load for a prolonged period of time. For example, running several times more transactions in an entire day (or night) than would be expected in a busy day, to identify and performance problems that appear after a large number of t

  4. .Running a system at low load for a prolonged period of time. For example, running several times more transactions in an entire day (or night) than would be expected in a busy day, to identify and performance problems that appear after a large number of t
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Soak testing involves running a system under high load (or typical production load) for a continuous, prolonged period to detect performance degradation, memory leaks, or resource exhaustion. The other options describe running at low load or general non-loaded execution without testing performance under prolonged strain.

Multiple choice technology testing

What is IVR Testing ?

  1. Testing the pre-recorded messages in the Interactive voice response systems.

  2. Testing the messages in the Interactive voice response systems.

  3. Testing the internel working of the Interactive voice response systems.

  4. Testing the call routing/path of the Interactive voice response systems.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IVR (Interactive Voice Response) testing validates pre-recorded audio messages, prompts, and voice menus within automated phone systems. Option A correctly identifies testing pre-recorded messages as the core activity. Option B is vague about what message aspects to test. Option C incorrectly suggests testing internal workings rather than user-facing audio. Option D incorrectly focuses on call routing rather than message testing.

Multiple choice technology testing

Testing of a candidate build to be deployed is done by performing

  1. Static test

  2. Dynamic test

  3. Smoke test

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A smoke test is specifically performed on a new or candidate build to verify that its crucial functions work and that the build is stable enough to proceed with further, more detailed testing. Static and dynamic tests are broader categories, not the specific initial build verification test.

Multiple choice technology testing

Agent testing is always performed in

  1. TIN

  2. TAC

  3. DEV

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Agent testing in Q&I is always performed in the TAC (Testing Agent Console) environment. This is a dedicated environment for agent-based testing, distinct from DEV (development) and TIN regions which serve other purposes.

Multiple choice technology mainframe

What are three basic levels in scorecard testing

  1. TAR rules verification

  2. Scorecard Attributes

  3. Tier Cutoffs

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The three basic levels in scorecard testing are TAR rules verification, Scorecard Attributes, and Tier Cutoffs. TAR (Transparent Account Rating) rules verify the scoring logic is applied correctly, scorecard attributes define the variables used in scoring, and tier cutoffs establish the boundaries between risk segments. 'All the above' is correct because it encompasses all three levels.

Multiple choice technology testing

How many test cases would be required to cover all the decisions in following program?READ A READ B IF A>= 10 THEN PRINT A; ELSEIF B>5 THEN PRINT B IS SMALL; ELSEIF A>B THEN PRINT A IS BIGGER THEN B; ELSE IF B>A THEN PRINT B; ELSE PRINT NULL ;END IF; END IF; END IF; END IF;

  1. 8

  2. 5

  3. 7

  4. 6
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This program has 5 decision points (IF A>=10, ELSEIF B>5, ELSEIF A>B, ELSE IF B>A, and the implicit ELSE). To achieve decision coverage, each decision must be tested with both true and false outcomes. The minimum 5 test cases are: (1) A>=10 true, (2) A<10, B>5 true, (3) A<10, B<=5, A>B true, (4) A<10, B<=5, A<=B, B>A true, (5) All conditions false (A=B). Option A (8) is for multiple condition coverage, while C (7) and D (6) don't account for all decision branches.

Multiple choice technology testing

Which of the following statements is true about a software verification and validation program? I. It strives to ensure that quality is built into software. II. It provides management with insights into the state of a software project. III. It ensures that alpha, beta, and system tests are performed. IV. It is executed in parallel with software development activities.

  1. I, II & III

  2. II, III & IV

  3. I, II & IV

  4. I, III & IV
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The correct answer is C. I, II & IV.

Explanation: I. It strives to ensure that quality is built into software: This statement is true as software verification and validation programs aim to ensure that quality is built into the software development process. II. It provides management with insights into the state of a software project: This statement is true as a software verification and validation program provides management with insights into the progress, quality, and state of a software project. III. It ensures that alpha, beta, and system tests are performed: This statement is not necessarily true for all software verification and validation programs. While these types of tests are commonly performed, it is not a requirement for all programs. IV. It is executed in parallel with software development activities: This statement is true as a software verification and validation program typically runs concurrently with software development activities to ensure that quality is maintained throughout the development process.

Therefore, the correct answer is C. I, II & IV.

Multiple choice technology testing

Given the following code, which is true about the minimum number of test cases required for full statement and branch coverage: Read P Read Q IF P+Q > 100 THEN Print “Large” ENDIF If P > 50 THEN Print “P Large” ENDIF

  1. 1 test for statement coverage, 3 for branch coverage

  2. 1 test for statement coverage, 2 for branch coverage

  3. 1 test for statement coverage, 1 for branch coverage

  4. 2 tests for statement coverage, 3 for branch coverage

  5. 2 tests for statement coverage, 2 for branch coverage
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To solve this question, the user needs to know the concepts of statement coverage and branch coverage in software testing.

Statement coverage means that each statement in the code is executed at least once during testing. Branch coverage means that each possible branch or decision point in the code is executed at least once during testing.

In the given code, there are two decision points:

  1. IF P+Q > 100
  2. If P > 50

Now, let's go through each option and explain why it is right or wrong:

A. 1 test for statement coverage, 3 for branch coverage: This option is incorrect because it requires 3 tests for branch coverage. However, there are only two decision points in the code, so it is not possible to have three branches. Therefore, option A is incorrect.

B. 1 test for statement coverage, 2 for branch coverage: This option is correct. To achieve statement coverage, only one test case is required where P = 50 and Q = 51. This will execute all statements in the code. To achieve branch coverage, two test cases are required: one where P = 50 and Q = 51 (to cover the first decision point) and another where P = 51 and Q = 50 (to cover the second decision point). Therefore, option B is the correct answer.

C. 1 test for statement coverage, 1 for branch coverage: This option is incorrect because there are two decision points in the code that require two test cases for branch coverage. Therefore, option C is incorrect.

D. 2 tests for statement coverage, 3 for branch coverage: This option is incorrect because there are only two decision points in the code that require two test cases for branch coverage. Therefore, option D is incorrect.

E. 2 tests for statement coverage, 2 for branch coverage: This option is incorrect because only one test case is required for statement coverage. Therefore, option E is incorrect.

The Answer is: B. 1 test for statement coverage, 2 for branch coverage.

Multiple choice technology testing

The selection of test cases for regression testing

  1. Requires knowledge on the bug fixes and how it affect the system

  2. Includes the area of frequent defects

  3. Includes the area which has undergone many/recent code changes

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Regression testing ensures that code modifications do not introduce new defects. Selecting test cases requires understanding bug fixes and their systemic impacts, targeting areas with frequent historic defects, and focusing on components with recent or heavy code changes. Thus, all the listed strategies are valid for regression test selection.

Multiple choice technology testing

Complete statement and branch coverage means:

  1. That you have tested every statement in the program.

  2. That you have tested every statement and every branch in the program.

  3. That you have tested every IF statement in the program.

  4. That you have tested every combination of values of IF statements in the program
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statement coverage ensures every statement is executed. Branch coverage extends this to ensure both true and false branches of every decision (if, switch, loops) are tested. Complete statement AND branch coverage means both criteria are met. Testing every IF combination is path coverage (more exhaustive).