To answer this question, you need to understand different test approaches or strategies.

Stochastic testing is an example of the model-based test approach. In this approach, test cases are generated based on a mathematical model of the system under test. Stochastic testing involves using random inputs or events to test the system and observe its behavior.

Let's go through each option to understand why it is correct or incorrect:

Option A) Model based - This option is correct because stochastic testing is an example of the model-based test approach.

Option B) Analytical - This option is incorrect because analytical testing involves using formal methods or mathematical analysis to verify the correctness of a system.

Option C) Methodical - This option is incorrect because methodical testing refers to a systematic and organized approach to testing, but it does not specifically involve the use of models.

Option D) Heuristic - This option is incorrect because heuristic testing involves using experience and intuition to guide the testing process, rather than relying on models.

Therefore, the correct answer is A) Model based. This option is correct because stochastic testing is an example of the model-based test approach.

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• Wrong explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) I, ii, iii are true and iv is false - This option is incorrect because it states that Test Scripts (ii) are true, when in fact they are not mentioned in the Test Plan Outline.

Option B) I, iii, iv are true and ii is false - This option is correct. The Test Plan Outline typically includes Test Items (i), Test Deliverables (iii), and Responsibilities (iv). Test Scripts (ii) are not mentioned in the Test Plan Outline.

Option C) ii, iii are true and i and iv are false - This option is incorrect because it states that Test Deliverables (iii) are true, but does not mention Test Items (i) or Responsibilities (iv) which are typically included in a Test Plan Outline.

Option D) I, ii are false and iii, iv are true - This option is incorrect because it states that Test Deliverables (iii) and Responsibilities (iv) are true, but does not mention Test Items (i) or Test Scripts (ii) which are typically included in a Test Plan Outline.

The correct answer is B) I, iii, iv are true and ii is false. This option is correct because Test Items, Test Deliverables, and Responsibilities are typically included in a Test Plan Outline, while Test Scripts are not mentioned.

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• Wrong explanation

To answer this question, you need to understand the concept of equivalence classes.

Equivalence classes refer to a set of input values that are considered equivalent or produce the same result. In this case, the valid equivalence class for the numeric values in the text box is between 18 and 25.

Let's go through each option to determine which one is an invalid equivalence class:

Option A) 17 - This option is invalid because it falls outside the specified range of 18 to 25.

Option B) 19 - This option is valid because it falls within the specified range of 18 to 25.

Option C) 24 - This option is valid because it falls within the specified range of 18 to 25.

Option D) 21 - This option is valid because it falls within the specified range of 18 to 25.

Therefore, the invalid equivalence class is option A) 17 because it is outside the range of 18 to 25.

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• Wrong explanation

To answer this question, we need to understand the given conditions. The candidate needs to score a minimum of 24 marks to clear the exam, and the maximum score possible is 40 marks.

Let's go through each option to determine if it contains valid equivalence values for the candidate to clear the exam:

Option A) 22, 23, 26

• None of these values are equal to or greater than 24. Therefore, this option is incorrect.

Option B) 21, 39, 40

• The values 39 and 40 are greater than 24, so they are valid equivalence values. However, the value 21 is less than 24, so it is not valid. Therefore, this option is incorrect.

Option C) 29, 30, 31

• All of these values are equal to or greater than 24. Therefore, this option is correct.

Option D) 0, 15, 22

• None of these values are equal to or greater than 24. Therefore, this option is incorrect.

Therefore, the valid equivalence values for the candidate to clear the exam are 29, 30, and 31. The correct answer is option C.

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• Wrong explanation