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

The Testing Technique that requires devising test cases to demonstrate that each program function is operational is called

  1. Black-Box Testing

  2. Glass-Box Testing

  3. Grey-Box Testing

  4. White-Box Testing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Black-box testing validates software functionality by examining inputs and outputs without knowledge of internal code structure. Test cases are designed based on requirements and specifications to ensure each program function operates correctly from a user perspective.

Multiple choice technology testing

What types of errors are missed by Black-Box Testing and can be uncovered by White-Box Testing ?

  1. Behavioral Errors

  2. Logic Errors

  3. Performance Errors

  4. Typographical Errors

  5. Both B and D
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Black-box testing examines software behavior from the outside without viewing internal code, so it cannot detect logic errors in code flow or typographical mistakes within the implementation. White-box testing, which inspects the internal structure, can uncover these hidden defects that don't manifest as behavioral failures.

Multiple choice technology testing

The Testing Technique that requires devising test cases to exercise the internal logic of a Software module is called

  1. Behavioral Testing

  2. Black-Box Testing

  3. Grey-Box Testing

  4. White-Box Testing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

White-box testing involves examining and testing the internal logic, code structure, and implementation details of a software module. Test cases are designed to cover specific code paths, branches, and conditions within the source code itself.

Multiple choice technology testing

Condition Testing is a control structure Testing Technique where the criteria used to design test cases is that they

  1. Rely on Path Based Testing

  2. Exercise the Logical Conditions in a Program module

  3. Select Test Paths based on the locations and uses of variables

  4. Focus on Testing the Validity of loop constructs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condition testing is a white-box technique that specifically targets logical conditions (compound boolean expressions, if statements, loops) within program code. It ensures all possible combinations of conditions in decision points are tested to reveal potential logic flaws in conditional statements.

Multiple choice technology testing

Data Flow Testing is a control structure Testing Technique where the criteria used to design test cases is that they

  1. Rely on Path Based Testing

  2. Exercise the Logical Conditions in a Program module

  3. Select Test Paths based on the locations and uses of variables

  4. Focus on Testing the Validity of loop constructs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Data flow testing selects test paths based on how variables are defined, used, and killed throughout the program. It tracks the flow of data from assignment points to usage points, ensuring that all definition-use pairs are tested and uncovering errors in how data propagates through the code.

Multiple choice technology testing

Black-Box Testing attempts to find errors in which of the following categories

  1. Incorrect or Missing functions

  2. Interface Errors

  3. Performance Errors

  4. All of the Above

  5. None of the Above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Black-box testing can detect incorrect or missing functions by comparing actual behavior against requirements. It reveals interface errors through invalid input/output testing and can identify performance errors by testing system response times and resource usage under various conditions.

Multiple choice technology testing

Fault-based Testing is best reserved for

  1. Conventional Software Testing

  2. Operations and classes that are Critical or Suspect

  3. Use-Case Validation

  4. White-Box Testing of Operator Algorithms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fault-based testing (also called mutation testing) deliberately introduces small faults to test effectiveness of test cases. Since it's computationally expensive, it's strategically reserved for critical operations where failures are costly or for suspect code sections that have had defects or complex logic requiring extra scrutiny.

Multiple choice technology testing

The Test data is divided into valid and invalid classes. Then those two classes are tested. This is

  1. Boundary Value Analysis

  2. Error Guessing

  3. Equivalence Partitioning

  4. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Equivalence partitioning reduces test cases by grouping input data into classes that should be processed similarly. The technique divides test data into valid and invalid equivalence classes, then tests representative values from each class rather than every possible input, making testing more efficient while maintaining coverage.

Multiple choice technology testing

Which of the following are characteristics of testable Software ?

  1. Observability

  2. Simplicity

  3. Stability

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

Testable software exhibits observability (you can see what's happening internally), simplicity (clear, understandable design), and stability (consistent behavior). These characteristics make it easier to design effective test cases, identify failures, and maintain test suites over time.

Multiple choice technology testing

Which testing ensures that all part of the code is executed once?

  1. Statement Coverage

  2. Path Coverage

  3. Branch Coverage

  4. None of the Above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement coverage is a white-box testing metric that ensures every executable statement in the code is executed at least once during testing. It's the most basic form of code coverage, measuring what percentage of statements have been executed by the test suite.

Multiple choice technology programming languages

What is the utility to test WCF services?

  1. WcfClient.exe

  2. WcfTestClient.exe

  3. WcfTestService.exe

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

WcfTestClient.exe is the official WCF service testing tool provided with Visual Studio. It allows testing service operations without writing client code. The other options are fictitious tool names that do not exist in the .NET Framework.

Multiple choice technology programming languages

A set of capabilities designed to better integrate both physical and virtual labs into the development process?

  1. Test Case management

  2. Lab Management

  3. Bug management

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

Lab Management integrates physical and virtual test labs into the software lifecycle, automating provisioning and configuration. Other options like test case, bug, or process management deal with test logic, defect tracking, or workflow control rather than lab infrastructure.

Multiple choice technology programming languages

What are the out of box policies supported by TFS?

  1. Code Analysis, Testing, Build and Inspections

  2. Code Analysis, Testing, Build and Process flow

  3. Code Analysis, Testing, Build and Review

  4. Code Analysis, Testing, Build and work items
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

TFS supports four out-of-box check-in policies: Code Analysis (requires code analysis rules to pass), Testing (requires associated tests to pass), Build (requires build to succeed), and Work Items (requires work items to be linked/associated). The 'work items' option completes the set - options A, B, and C incorrectly list 'Inspections', 'Process flow', and 'Review' which are not standard policies.

Multiple choice technology programming languages

What is the primary interface that a tester uses to create test cases, organize test plans, track test results, and file bugs when defects are found?

  1. Microsoft Test Manager 2010

  2. Microsoft Lab Manager 2010

  3. Microsoft Test Runner 2010

  4. Visual Studio 2010 Ultimate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Microsoft Test Manager 2010 (MTM) is the primary interface for testers. It provides comprehensive test management: creating and organizing test cases, managing test plans and suites, running tests and tracking results, and filing bugs with rich diagnostic information (intellitrace, video capture). Test Runner is a lightweight execution tool within MTM, Lab Manager manages test environments, and Visual Studio is the IDE.