Vaidikalaya

MCQ On Black Box Testing

Q1. Black Box Testing focuses on:.
  1. Internal code structure
  2. Database design
  3. External behavior of the system
  4. Code optimization

Answer: c, External behavior of the system

Solution: Black box testing validates the external behavior of the system.

Q2. In Black Box Testing, the tester:.
  1. Must know the source code
  2. Does not need knowledge of internal code
  3. Modifies the code
  4. Writes unit tests

Answer: b, Does not need knowledge of internal code

Solution: Black box testing does not require knowledge of internal code.

Q3. Which of the following is a Black Box Testing technique?.
  1. Statement Coverage
  2. Path Coverage
  3. Boundary Value Analysis
  4. Loop Testing

Answer: c, Boundary Value Analysis

Solution: Boundary Value Analysis is a black box testing technique.

Q4. Black Box Testing is mainly based on:.
  1. Source code
  2. System architecture
  3. Requirements and specifications
  4. Database schema

Answer: c, Requirements and specifications

Solution: Black box testing is derived from requirements and specifications.

Q5. Who can perform Black Box Testing?.
  1. Only developers
  2. Only automation testers
  3. Testers, business analysts, and end users
  4. Only database administrators

Answer: c, Testers, business analysts, and end users

Solution: Black box testing can be performed by anyone without coding knowledge.

Q6. Which testing level commonly uses Black Box Testing?.
  1. Unit Testing
  2. System Testing
  3. White Box Testing
  4. Code Review

Answer: b, System Testing

Solution: System testing commonly uses black box testing.

Q7. Equivalence Partitioning is used to:.
  1. Test loop conditions
  2. Reduce the number of test cases
  3. Increase code coverage
  4. Test internal logic

Answer: b, Reduce the number of test cases

Solution: Equivalence partitioning reduces test cases by grouping inputs.

Q8. Boundary Value Analysis focuses on:.
  1. Middle values
  2. Random values
  3. Edge values of input ranges
  4. Internal variables

Answer: c, Edge values of input ranges

Solution: Boundary value analysis tests edge conditions.

Q9. Black Box Testing helps identify:.
  1. Logical code errors
  2. Dead code
  3. Missing or incorrect functionality
  4. Code complexity issues

Answer: c, Missing or incorrect functionality

Solution: Black box testing identifies functional issues.

Q10. Which of the following is NOT Black Box Testing?.
  1. Use Case Testing
  2. Decision Table Testing
  3. Statement Coverage
  4. State Transition Testing

Answer: c, Statement Coverage

Solution: Statement coverage is a white box testing technique.