Download ISTQB Certified Tester Foundation Level 4.0.CTFL4.ExamTopics.2025-12-21.83q.vcex

Vendor: ISTQB
Exam Code: CTFL4
Exam Name: ISTQB Certified Tester Foundation Level 4.0
Date: Dec 21, 2025
File Size: 966 KB
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Demo Questions

Question 1
Which sequence of state transitions is INCORRECT in accordance with the following description?
To provide for disaster recovery a system (designated as A) has been provided with a backup system (designated as B). Only one of them can be active at a time. When A goes down, В becomes active. When A comes back up then В becomes inactive and A becomes active again. However, when A is down and В also goes down then a message is sent to the system administrator. After this once A comes back up, A becomes active or if В comes up then В becomes Active.
  1. A is active and В is inactive A goes down. В becomes active then В goes down. A is made active
  2. A comes up when В is active and A was down Now A becomes active and В becomes inactive
  3. A is active and В is inactive then A goes down В becomes active
  4. A and В are both down then A and В both come back up at the same time A should become the active system and В should be inactive
Correct answer: D
Question 2
Which of the following statements is CORRECT?
  1. Testing based on the structure of the software under test (SUT) is white-box testing whereas testing the input-output behaviour without pre-written test cases is experience based testing.
  2. Testing the software under test (SUT) based on the design is black-box testing whereas testing the input-output behaviour is experience based testing.
  3. Testing the software under test (SUT) is possible only after implementation in white-box testing whereas testing the software even before implementation is possible in exploratory testing.
  4. Testing the software under test (SUT) using knowledge of the tester is experience based testing whereas testing the specification based behaviour without pre-written test cases is using black-box testing techniques.
Correct answer: A
Question 3
User Story:
As a member of the “Agnotoly” association, I want to be able to pay the association's dues through an automatic payment method so that I can forget about payment deadlines.
Acceptance Criteria:
  • The member can only pay with “Agnosis Master” credit card.
  • The member must register their cell phone number.
  • The member must register the credit card in the association's payment system.
  • The member must select one of the following credit card payment methods: monthly or annual.
  • For the payment system to proceed with the transaction, the member must accept the terms and conditions applicable to the selected payment method (monthly or annual payment).
  • If the member accepts the terms and conditions, the payment system sends a message to the member's mobile/cell phone with a one-time password and prompts the member to enter the one-time password.
  • The payment method is registered in the association's payment system once the one-time key sent by the payment system is verified.
  • Once the payment method is registered, the association's payment system will charge the member on the first business day of the following month.
Remark:
The payment method registration is a transactional process; therefore, if the acceptance criteria 1 through 7 are not met, the payment system will revert to its previous state and will not maintain any information that may have been entered.
In the test cycle that has just ended, the following objectives have been achieved:
  • Members of the association have been able to pay association dues with the credit card.
  • Dues payments have been made on a monthly basis and for more than a year since the initial payment.
Which ONE of the following options identifies the acceptance criteria that has NOT been fully covered during the above test cycle?
  1. Acceptance criteria 8 has not been fully covered during the above test cycle.
  2. Acceptance criteria 4 has not been fully covered during the above test cycle.
  3. All acceptance criteria have been fully covered during the above test cycle.
  4. Acceptance criteria 6 has not been fully covered during the above test cycle.
Correct answer: A
Question 4
Which role is responsible for ensuring the effective running of review meetings?
  1. Review leader
  2. Facilitator
  3. Scribe
  4. Manager
Correct answer: A
Question 5
Scenario “Happy Tomatoes”
An intelligent application for agricultural use incorporates temperature sensors located at different points of an enclosure. The sensors measure and record the temperature at regular intervals and extract the statistical values for these measurements. These values include the average daily temperature.
A new variety of tomatoes is currently being grown and the “World Organization for Happy Tomatoes” has established temperature ranges related to vegetative development.
When the system establishes that the average temperature is within a specific range, it emits a value that will be used to monitor and control the crop.
Using the Boundary Value Analysis technique (in its two-point variant), identify the set of input values that provides the HIGHEST coverage.
  1. {7, 8, 21, 22, 29, 30}
  2. {7, 8, 22, 23, 29, 30}
  3. {6, 7, 8, 21, 22, 29, 31}
  4. {6, 7, 21, 22, 29, 30}
Correct answer: C
Question 6
You prioritize test cases using the additional coverage prioritization technique, using the requirements coverage as a coverage measure. All four test cases must be executed. The coverage achieved by your test cases is shown in the table below.
Which test case should be executed LAST?
  1. TC1
  2. TC2
  3. TC3
  4. TC4
Correct answer: C
Question 7
Which TWO are the examples of entry criteria for system testing of a food order app? (Choose two.)
  1. All functional tests for the payment process are automated
  2. A test basis describing the business rules for discounts is available
  3. All smoke tests of the registering and logging features passed
  4. The appropriate functional tests cover all use cases
  5. There are no critical and at most 3 major defects unresolved
Correct answer: CE
Question 8
Which ONE of the following is a GOOD testing practice that is INDEPENDENT of the chosen SDLC (Software Development Life Cycle) model?
  1. Testers are involved in reviewing work products as soon as the final version of this documentation is available so that this earlier testing and defect detection can support the “shift-left” strategy.
  2. Test analysis and design for a specific test level begin during the corresponding development phase of the SDLC, allowing testing to follow the principle of late testing.
  3. For every software development activity, there is a corresponding testing activity, ensuring that all development activities are subject to quality assurance.
  4. Different test levels have specific and overlapping test objectives, allowing tests to be appropriate to specific test object types while managing redundancy.
Correct answer: D
Question 9
Match test activities (1)-(4) with related tasks (P)-(S):
(1) Test analysis
(2) Test completion
(3) Test implementation
(4) Test execution
(P) Defining test conditions
(Q) Reporting defects
(R) Creating change requests for unresolved defects
(5) Creating test cases
  1. 1P, 2R, 3S, 4Q
  2. 1S, 2R, 3P, 4Q
  3. 1S, 2Q, 3P, 4R
  4. 1P, 2Q, 3S, 4R
Correct answer: D
Question 10
In the testing quadrants model, which testing is business-facing and supports the team?
  1. Security testing
  2. Component testing
  3. API testing
  4. Exploratory testing
Correct answer: D
Question 11
You validate the correctness of price calculation in a food ordering application. The input parameter is the order amount (in $), and the result is the final price reflecting the discount. If the order amount is less than $100, the discount is not granted (0% discount). If the order amount is greater than $500, a 50% discount is granted. In other cases, the 10% discount is granted.
You apply equivalence partitioning for the “order amount” domain to check if discounts are granted correctly.
Which test data set achieves the highest coverage?
  1. 100.01, 499.99, 500.01
  2. 50.99, 500, 500.10
  3. 99.99, 100, 500
  4. 0, 10, 50
Correct answer: C
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