Test
ISTQB - ISEB | Certified Tester Foundation Level
Preguntas del test (40)
1Which of the following statements BEST describes one of the seven key principles of software testing?
- AAutomated tests are better than manual tests for avoiding the Exhaustive Testing.
- BExhaustive testing is, with suffiecient effort and tool support, feasible for all software.
- CIt is normally impossible to test all input / output combinations for a software system
- DThe purpose of testing is to demostrate the absence of defects.
2Which of the following statements is the MOST valid goal for a test team?
- ADetermine whether enough component testing was executed.
- BCause as many failures as possible so that faults can be identified and corrected.
- CProve that all faults are identified.
- DProve that any remaining faults will not cause any failures.
3Which of these tasks would you expect to perform during Test Analysis and Design?
- ASetting or defining test objectives.
- BReviewing the test basis.
- CCreating test suites from test procedures.
- DAnalyzing lessons learned for process improvement.
4Below is a list of problems that can be observed during testing or operation.
- AThe product crashed when the user selected an option in a dialog box.
- BOnce source code file included in the build was the wrong version.
- CThe computation algorithm used the wrong input variables.
- DThe developer misinterpreted the requiement for the algorithm.
5Which of the following, if observed in reviews and tests, would lead to problems (or conflict) within teams?
- ATesters and reviewers are not curious enough to find defects.
- BTesters and reviewers are not qualified enough to find failures and faults.
- CTesters and reviewers communicate defects as critiscism against persons and not against the software product.
- DTesters and reviewers expect that defects in the software product have already been found and fixed by the developers.
6Which of the following TWO statements are TRUE?
- AA) Software testing may be required to meet legal or contractual requirements.
- BB) Software testing is mainly needed to improve the quality of the developer's work.
- CC) Rigorous testing and fixing of defects found can help reduce the risk of problems occurring in an operational environment.
- DD) Rigorous testing is sometimes used to prove that all failures have been found.
7Which of the following statements BEST describes the difference between (K2) testing and debugging?
- ATesting pinpoints (identifies the source of) the defects. Debugging analyzes the faults and proposes prevention activities.
- BDynamic testing shows failures caused by defects. Debugging finds, analyzes and removes the causes of failures in the software.
- CTesting removes faults. Debugging identifies the causes of failures.
- DDynamic testing prevents causes of failures. Debugging removes the failures.
8Which statement below BEST describes non-functional testing?
- AThe process of testing an integrated system to verify that it meets specified requirements.
- BThe process of testing to determine the compliance of a system to coding standards.
- CTesting without reference to the internal structure of a system.
- DTesting system attributes, such as usability, reliability or maintainability.
9What is important to do when working with software development models?
- ATo adapt the models to the context of project and product characteristics.
- BTo choose the waterfall model because it is the first and best proven model.
- CTo start with the V-model and then move to either iterative or incremental models.
- DTo only change the organisation to fit the model and not vice versa.
10Which of the following characteristics of good testing apply to any software development life cycle model?
- AAcceptance testing is always the final test level to be applied.
- BAll test levels are planned and completed for each developed feature.
- CTesters are involved as soon as the first piece of code can be executed.
- DFor every development activity there is a corresponding testing activity.
11For which of the following would maintenance testing be used?
- ACorrection of defects during the development phase?
- BPlanned enhancements to an existing operational system.
- CComplaints about system quality during user acceptance testing.
- DIntegrating functions during the development of a new system.
12Which of the following statements are TRUE?
- AA) Regression testing and acceptance testing are the same.
- BB) Regression tests show if all defects have been resolved.
- CC) Regression tests are typically well-suited for test automation.
- DD) Regression tests are performed to find out if code changes have introduced or uncovered defects.
- EE) Regression tests should be performed in integration testing.
13Which of the following comparisons of component testing and system testing are TRUE?
- AA) Component testing verifies the functioning of software modules, program objects and classes that are separately testable, whereas system testing verifies interfaces between components and interactions with different parts of the system.
- BB) Test cases for component testing are usually derived from component specifications, design specifications, or data models, whereas test cases for system testing are usually derived from requirement spcifications, functional specifications or use cases.
- CC) Component testing focuses on functional characteristics, whereas system testing focuses on functional and non-functional characteristics.
- DD) Component testing is the responsibility of the technical testers, whereas system testing typically is the responsibility of the users of the systems.
14Which of the following are the main phases of a formal review?
- AA) Initiation, status, preparation, review meeting, rework, follow up.
- BB) Planning, preparation, review meeting, rework, closure, follow up.
- CC) Planning, kick off, individual preparation, review meeting, rework, follow up.
- DD) Preparation, review meeting, rework, closure, follow up, root cause analysis.
15Which TWO of the review types below are the BEST fitted (most adequate) options to choose for reviewing safety critical components in a software project? (SELECT TWO OPTIONS)
- AA) Informal Review.
- BB) Management Review.
- CC) Inspection.
- DD) Walkthrough.
- EE) Technical Review.
16Which one of the following statements about static analysis is FALSE?
- AA) Static analysis can be used as a preventive measure with appropriate process in place.
- BB) Static analysis can find defects that are not easily found by dynamic testing.
- CC) Static analysis can result in cost savings by finding defects early.
- DD) Static analysis is a good way to force failures into the software.
17One of the test goals for the project is to have 100% decision coverage. The following three tests have been executed for the control flow graph show below:
Test A covers path: A, B, D, E, G.
Test B covers path: A, B, D, E, F, G.
Test C covers path: A, C, F, C, F, C, F, G.
- ADecision D has not been tested completely.
- B100% decision coverage has been achieved.
- CDecision E has not been tested completely.
- DDecision F has not been tested completely.
18A defect was found during testing. When the network got disconnected while (K3) receiving data from a server, the system crashed. The defect was fixed by correcting the code that checked the network availability during data transfer. The existing test cases covered 100% of all statements of the corresponding module. To verifiy the fix and ensure more extensive coverage, some new tests were designed and added to the test suite.
What types of testing are mentioned above?
A) Functional Testing
B) Structural Testing
C) Re-testing
D) Performance testing.- AA, B & D
- BA & C
- CA, B & C
- DA, C & D
19Which of the following statements about the given state table is TRUE?
- AA) The state table can be used to derive both valid and invalid transitions.
- BB) The state table represents all possible single transitions.
- CC) The state table represents only some of all possible single transitions.
- DD) The state table represents sequential pairs of transitions.
20Which of the following statements are true for the equivalence partitioning test technique?
- AA) Divides possible inputs into classes that have the same behaviour.
- BB) Uses both valid and invalid partitions.
- CC) Makes use only of valid partitions.
- DD) Must include at least two values from every equivalence partition.
- EE) Can be used only for testing equivalence partitions inputs from a Graphical User Interface.
21Which TWO of the following solutions below lists techniques that can all be categorized as Black Box design techniques? [K1]
Select 2 options.- Aa) Equivalence Partitioning, decision tables, state transition, and boundary
value. - Bb) Equivalence Partitioning, decision tables, use case.
- Cc) Equivalence Partitioning, decision tables, checklist based, statement coverage, use case.
- Dd) Equivalence Partitioning, cause-effect graph, checklist based, decision coverage, use case.
- Ee) Equivalence Partitioning, cause-effect graph, checklist based, decision coverage and boundary value.
- Aa) Equivalence Partitioning, decision tables, state transition, and boundary
22An employee’s bonus is to be calculated. It cannot become negative, but it can be calculated to zero. The bonus is based on the duration of the
employment. An employee can be employed for less than or equal to 2 years, more than 2 years but less than 5 years, 5 to 10 years, or longer than 10
years. Depending on this period of employment, an employee will get either no bonus or a bonus of 10%, 25% or 35%.
How many equivalence partitions are needed to test the calculation of the bonus?- AA) 3
- BB) 5
- CC) 2
- DD) 4
23Which of the following statements about the benefits of deriving test cases from use cases are most likely to be true?
- AA. Deriving test cases from use cases is helpful for system and acceptance testing.
- BB. Deriving test cases from use cases is helpful only for automated testing.
- CC. Deriving test cases from use cases is helpful for component testing.
- DD. Deriving test cases from use cases is helpful for testing the interaction between different components of the system.
24Which of the below would be the best basis for fault attack testing?
- Aa) Experience, defect and failure data, knowledge about software failures.
- Bb) Risk analysis performed at the beginning of the project.
- Cc) Use Cases derived from the business flows by domain experts.
- Dd) Expected results from comparison with an existing system.
25Which of the following would be the best test approach when there are poor specifications and time pressures?
- AUse Case Testing.
- BCondition Coverage.
- CExploratory Testing.
- DPath Testing.
26Which one of the following techniques is structure-based? [K1]
- Aa) Decision testing.
- Bb) Boundary value analysis.
- Cc) Equivalence partitioning.
- Dd) State transition testing.
27You have started specification-based testing of a program. It calculates the greatest common divisor (GCD) of two integers (A and B) greater than zero.
calcGCD (A, B);
The following test cases (TC) have been specified.
- Aa) Boundary value analysis.
- Bb) State transition testing.
- Cc) Equivalence partitioning.
- Dd) Decision table testing.
28Consider the following state transition diagram and test case table:
Which of the following statements are TRUE?
- AA. The test case table exercises the shortest number of transitions.
- BB. The test case gives only the valid state transitions.
- CC. The test case gives only the invalid state transitions.
- DD. The test case exercises the longest number of transitions.
29Which of the following best describes the task partition between test manager and tester? (K1)
- Aa) The test manager plans testing activities and chooses the standards to be followed, while the tester chooses the tools and controls to be used.
- Bb) The test manager plans, organizes and controls the testing activities, while the tester specifies, automates and executes tests.
- Cc) The test manager plans, monitors and controls the testing activities, while the tester designs tests.
- Dd) The test manager plans and organizes the testing and specifies the test cases, while the tester prioritizes and executes the tests.
30Which of the following can be categorized as product risks? [K2]
- Aa) Low quality of requirements, design, code and tests.
- Bb) Political problems and delays in especially complex areas in the product.
- Cc) Error-prone areas, potential harm to the user, poor product characteristics.
- Dd) Problems in defining the right requirements, potential failure areas in the software or system.
31Which of the following are typical test exit criteria?
- Aa) Thoroughness measures, reliability measures, test cost, schedule, state of defect correction and residual risks.
- Bb) Thoroughness measures, reliability measures, degree of tester independence and product completeness.
- Cc) Thoroughness measures, reliability measures, test cost, time to market and product completeness, availability of testable code.
- Dd) Time to market, residual defects, tester qualification, degree of tester independence, thoroughness measures and test cost.
32As a Test Manager you have the following requirements to be tested:
Requirements to test:
R1 - Process Anomalies – High Complexity
R2 - Remote Services – Medium Complexity
R3 – Synchronization – Medium Complexity
R4 – Confirmation – Medium Complexity
R5 - Process closures – Low Complexity
R6 – Issues – Low Complexity
R7 - Financial Data – Low Complexity
R8 - Diagram Data – Low Complexity
R9 - Changes on user profile – Medium Complexity
Requirements logical dependencies (A -> B means that B is dependent on A):- Aa) R4 > R5 > R1 > R2 > R3 > R7 > R8 > R6 > R9.
- Bb) R1 > R2 > R3 > R4 > R5 > R7 > R8 > R6 > R9.
- Cc) R1 > R2 > R4 > R5 > R3 > R7 > R8 > R6 > R9.
- Dd) R1 > R2 > R3 > R7 > R8 > R4 > R5 > R6 > R9.
33What is the benefit of independent testing?
- Aa) More work gets done because testers do not disturb the developers all the time.
- Bb) Independent testers tend to be unbiased and find different defects than the developers.
- Cc) Independent testers do not need extra education and training.
- Dd) Independent testers reduce the bottleneck in the incident management process.
34Which of the following would be categorized as project risks? [K1]
- Aa) Skill and staff shortages.
- Bb) Poor software characteristics.
- Cc) Failure-prone software delivered.
- Dd) Possible reliability defect (bug).
35As a test manager you are asked for a test summary report. Concerning test activities and according to IEEE 829 Standard, what should you consider in your report? (K2)
- Aa) The number of test cases using Black Box techniques.
- Bb) A summary of the major testing activities, events and its status in respect of meeting goals.
- Cc) Overall evaluation of each development work item.
- Dd) Training taken by members of the test team to support the test effort.
36You are a tester in a safety-critical software development project. During execution of a test, you find out that one of your expected results was not
achieved. You write an incident report about it. What do you consider to be the most important information to include according to the IEEE Std. 829?- Aa) Impact, incident description, date and time, your name.
- Bb) Unique id for the report, special requirements needed.
- Cc) Transmitted items, your name and you’re feeling about the defect source.
- Dd) Incident description, environment, expected results.
37From the list below, select the recommended principles for introducing a chosen test tool in an organization?
1. Roll the tool out to the entire organization at the same time.
2. Start with a pilot project.
3. Adapt and improve processes to fit the use of the tool.
4. Provide training and coaching for new users.
5. Let each team decide their own standard ways of using the tool.
6. Monitor that costs do not exceed initial acquisition cost.
7. Gather lessons learned from all teams.- Aa) 1, 2, 3, 5.
- Bb) 1, 4, 6, 7.
- Cc) 2, 3, 4, 7.
- Dd) 3, 4, 5, 6.
38Which one of the following best describes a characteristic of a keyworddriven test execution tool?
- Aa) A table with test input data, action words, and expected results, controls execution of the system under test.
- Bb) Actions of testers recorded in a script that is rerun several times.
- Cc) Actions of testers recorded in a script that is run with several sets of test input data.
- Dd) The ability to log test results and compare them against the expected results, stored in a text file.
39Which of the following is NOT a goal of a Pilot Project for tool evaluation? [K1]
- Aa) To evaluate how the tool fits with existing processes and practices.
- Bb) To determine use, management, storage, and maintenance of the tooland test assets.
- Cc) To assess whether the benefits will be achieved at reasonable cost.
- Dd) To reduce the defect rate in the Pilot Project.
40Below is a list of test efficiency improvement goals a software developmentand test organization would like to achieve.
Which of these goals would best be supported by a test management tool?- Aa) To build traceability between requirements, tests, and bugs.
- Bb) To optimize the ability of tests to identify failures.
- Cc) To resolve defects faster.
- Dd) To automate selection of test cases for execution.
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- Test sobre ISTQB - ISEB | Certified Tester Foundation Level, creado por graemewatson el 27/10/2014.
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