iSQI CTFL_Syll2018 Exam Practice Test Instant Access

Question 1

Which of the following sentences about testing and debugging is correct?

ARe-testing checks that debugging has found and analyzed the failure

BDynamic testing finds defects, while debugging removes failures

CDynamic testing reveals failures, while debugging removes defects

DLike most development activities, debugging is usually done before testing starts

Answer : C

Testing and debugging are two different activities that are related to finding and removing defects and failures in software. Testing is the process of evaluating software by applying test cases to find failures and provide information on its quality. Debugging is the process of finding, analyzing, and removing the causes of failures in software. Testing reveals failures, which are deviations of the actual behavior of the software from its expected behavior. Debugging removes defects, which are flaws in the software that cause failures.

Question 2

Which one of the following statements about testing techniques is TRUE?

AExploratory testing can replace black box techniques when testing time is very limited

BTest execution scheduling should give priority to experienced based testing

CSpecification based techniques can be used as a substitute for a poorly defined test basis

DExperienced based techniques are systematic and produce detailed test documentation

Answer : A

Exploratory testing can replace black box techniques when testing time is very limited, because it is a type of experience-based technique that allows testers to design and execute tests based on their intuition, knowledge, and skills, without following a predefined test plan or test cases13. The other options are false statements about testing techniques.Option B is false, because test execution scheduling should give priority to specification-based or structure-based techniques, which are more systematic and objective than experience-based techniques13.Option C is false, because specification-based techniques cannot be used as a substitute for a poorly defined test basis, but rather require a clear and complete test basis to design effective test cases13.Option D is false, because experience-based techniques are not systematic and do not produce detailed test documentation, but rather rely on the tester's judgement and creativity

Question 3

A live defect has been found where a code component fails to release memory after it has finished using it.

Which of the following tools would have been the MOST effective at detecting this defect prior to live implementation?

ADynamic analysis tool

BMonitoring tool

CConfiguration management tool

DCoverage measurement tool

Answer : A

A dynamic analysis tool is the most effective tool for detecting memory leaks, which are defects where a code component fails to release memory after it has finished using it.A dynamic analysis tool monitors the behaviour of the software under test during execution and can measure memory usage, identify memory allocation errors, and report memory leaks13. The other options are not relevant tools for detecting memory leaks.A monitoring tool can measure the performance and resource consumption of the software under test, but it cannot identify memory leaks specifically13.A configuration management tool is used to manage the versions and changes of the software under test and its related artefacts, but it has nothing to do with memory leaks1.A coverage measurement tool is used to measure how much of the code or functionality of the software under test has been exercised by the test cases, but it cannot detect memory leaks1.

Question 4

Given the following requirement:

Which of the following statements is NOT correct?

A7 and 13 are boundary values for the equivalence partition including age 10.

BThursday is a valid input boundary value

CA minimum of 6 valid test cases are derived from boundary value analysis based on input age

D$3.01 is a valid output boundary value

Answer : D

The requirement given in the image specifies an additional fee of $3 that is charged during the weekend, with some exceptions and discounts based on the age of the visitors. To test this requirement, we can use boundary value analysis, which is a specification-based test technique that involves testing the values at or near the boundaries of an equivalence partition. An equivalence partition is a set of values that are expected to be treated in the same way by the system under test. For example, based on the requirement, we can identify the following equivalence partitions for the input age:

EP1: Age < 0 (invalid)

EP2: Age = 0 (valid, no charge)

EP3: 0 < Age < 7 (valid, no charge)

EP4: Age = 7 (valid, 20% discount)

EP5: 7 < Age < 13 (valid, 20% discount)

EP6: Age = 13 (valid, 20% discount)

EP7: 13 < Age < 65 (valid, full charge)

EP8: Age = 65 (valid, 50% discount)

EP9: Age > 65 (valid, 50% discount)

The boundary values for each equivalence partition are the values at or near the edges of the partition. For example, the boundary values for EP3 are 1 and 6. The boundary values for EP4 are 6 and 7. The boundary values for EP5 are 7 and 12. And so on.

To test this requirement using boundary value analysis, we need to select one value from each boundary and test it with different combinations of weekend and weekday. For example, we can select the following values:

BV1: Age = -1 (from EP1)

BV2: Age = 0 (from EP2 and EP3)

BV3: Age = 6 (from EP3 and EP4)

BV4: Age = 7 (from EP4 and EP5)

BV5: Age = 12 (from EP5 and EP6)

BV6: Age = 13 (from EP6 and EP7)

BV7: Age = 64 (from EP7 and EP8)

BV8: Age = 65 (from EP8 and EP9)

BV9: Age = 66 (from EP9)

We can then create test cases using these values and different combinations of weekend and weekday. For example:

TC1: Age = -1, Weekend = Yes -> Invalid input

TC2: Age = -1, Weekend = No -> Invalid input

TC3: Age = 0, Weekend = Yes -> No charge

TC4: Age = 0, Weekend = No -> No charge

TC5: Age = 6, Weekend = Yes -> No charge

TC6: Age = 6, Weekend = No -> No charge

TC7: Age = 7, Weekend = Yes -> $2.40 ($3 - 20% discount)

TC8: Age = 7, Weekend = No -> No charge

TC9: Age = 12, Weekend = Yes -> $2.40 ($3 - 20% discount)

TC10: Age = 12, Weekend = No -> No charge

TC11: Age = 13, Weekend = Yes -> $2.40 ($3 - 20% discount)

TC12: Age = 13, Weekend = No -> No charge

TC13: Age = 64, Weekend = Yes -> $3

TC14: Age = 64, Weekend = No -> No charge

TC15: Age = 65, Weekend = Yes -> $1.50 ($3 - 50% discount)

TC16: Age = 65, Weekend = No -> No charge

TC17: Age = 66, Weekend = Yes -> $1.50 ($3 - 50% discount)

TC18: Age =

66, Weekend = No -> No charge

Therefore, we need a minimum of18valid test cases to achieve100%boundary value coverage based on input age.

$3.01 is not a valid output boundary value because it is not a possible output value based on the requirement. The output values can only be $0, $1.50, $2.40, or $3 depending on the input age and weekend status.

You can find more information about boundary value analysis in [A Study Guide to the ISTQB Foundation Level 2018 Syllabus], Chapter 4, Section 4.2.

Question 5

What is the value of static code analysis?

ADetection of failures not easily found by other types of testing

BEarly defect detection

CDetection of suspicious operations caused by deviations from regulations

DDetect deviations in standards by executing the source code

Answer : B

Static code analysis is a technique that examines the source code or other software artifacts without executing them, and can detect defects, vulnerabilities, code smells, and deviations from standards early in the development process1.According to the ISTQB syllabus, one of the benefits of static testing is early defect detection2, which can reduce the cost and effort of fixing them later.

Question 6

Which of the following statements is true?

I) Test planning activities include selecting the test object

II,) Test strategy implementation is NOT a part of test planning

II,I) Choosing appropriate test techniques is part of test design

IV) Test schedule and exit criteria modification are part of test planning

AI, II,

BII, II,I

CI,IV

DII,I, IV

Answer : C

Statement I is true, as test planning activities include defining the test object, which is the component or system to be tested. Statement II, is false, as test strategy implementation is part of test planning and involves defining the test approach and test levels to be applied. Statement II,I is true, as test design activities include choosing appropriate test techniques to derive test cases from test conditions. Statement IV is true, as test planning activities include defining and updating the test schedule and exit criteria throughout the project lifecycle. Reference: ISTQB Certified Tester Foundation Level Syllabus 2018, Section 2.1

Question 7

Which one of the following statements about techniques for estimating test effort is correct?

AThe metrics-based technique finds the most similar former project and uses its original estimate for the current project.

BThe expert-based approach is based on the experience of the owners of the testing tasks or by subject matter experts.

CThe metrics-based technique uses metrics supplied by the current test team based on their subjective feel for effort required.

DIn an expert-based approach, the test lead with the most years in the role is chosen to produce the estimate.

Answer : B

According to the syllabus, there are two main approaches for estimating test effort: metrics-based and expert-based. The metrics-based approach uses metrics from previous similar projects or industry data to calculate the test effort based on the size and complexity of the software under test. The expert-based approach relies on the experience and judgment of the owners of the testing tasks or subject matter experts who provide their estimates based on their knowledge of the software under test. The answer B is correct because it accurately describes the expert-based approach. The other answers are incorrect because they either confuse the metrics-based and expert-based approaches or describe them incorrectly.

iSQI ISTQB Certified Tester Foundation Level CTFL_Syll2018 Exam Practice Test