CTFL_Syll_4.0 Exam Dumps : ISTQB Certified Tester Foundation Level (CTFL) v4.0

Checklist-based testing, as defined in the ISTQB CTFL syllabus, is indeed a review technique used within formal review processes. During these reviews, reviewers individually inspect work products to identify defects based on predefined checklists. These checklists serve as guidelines to ensure thorough examination and to cover important aspects consistently.

The other options do not accurately describe the checklist-based testing technique. Option A describes a technique for managing review meetings rather than the checklist-based testing itself. Option C incorrectly emphasizes the level of detail in checklists as a factor in reproducibility of test cases, which is not the primary focus of checklist-based testing. Option D, while true about the necessity of periodic review, is not the core aspect of the checklist-based testing technique itself.

Theratio-based estimation methodrelies on historical relationships betweendevelopment and testing effort.

Using the given5:3 ratio:

Thus, the correct answer is270 person-days (D).

(A) and (C) are incorrectas they overestimate the effort.

(B) underestimates the testing effort based on the ratio.

Ratio-based estimationhelps allocate resources effectively based on past project data.

Boundary Value Analysis (BVA)focuses on test cases at the edges of partitions because defects often occur at boundaries. The temperature ranges are:

≤7 (Too cold → W)

[8-21] (Standstill → X)

[22-29] (Ideal → Y)

≥30 (Too hot → Z)

Atwo-point BVAmeans testing both thelower and upper boundary valuesof each partition.

The correct selection{7,8,21,22,29,30}includes:

7 → Boundary of Too Cold (W)

8 → Lower boundary of Standstill (X)

21 → Upper boundary of Standstill (X)

22 → Lower boundary of Ideal (Y)

29 → Upper boundary of Ideal (Y)

30 → Lower boundary of Too Hot (Z)

This ensures maximum boundary coverage.