Saturday 5 September 2015

3+ Experience Manual Testing interview questions and answers


3+ experience Manual Testing interview questions and answers

Describe software review and formal technical review (FTR).

Software reviews works as a filter for the software process. It helps to uncover errors and defects in software. Software reviews enhance the quality of software. Software reviews refine software, including requirements and design models, code, and testing data.
A formal technical review (FTR) is a software quality control activity. In this activity, software developer and other team members are involved. The objectives of an FTR are:
- Uncover the errors.
- Verify that the software under technical review meets its requirements.
- To ensure that the software must follow the predefined standards.
- To make projects more manageable.
The FTR includes walkthroughs and inspections. Each FTR is conducted as a normal meeting. FTR will be successful only if it is properly planned, and executed.

What are the attributes of good test case?

The following are the attributes of good test case.
- A good test has a high probability of finding an error. To find the maximum error, the tester and developer should have complete understanding of the software and attempt to check all the conditions that how the software might fail.
- A good test is not redundant. Every test should have a different purpose from other, otherwise tester will repeat the testing process for same condition.
- A good test should be neither too simple nor too complex. In general, each test should be executed separately. If we combine more than one test into one test case, it might be very difficult to execute. Sometimes we can combine tests but it may hide some errors.

Describe cyclomatic complexity with example.

Cyclomatic complexity is a software metric that measure the logical strength of the program. It was developed by Thomas J. McCabe. Cyclomatic complexity is calculated by using the control flow graph of the program. In the flow graph, nodes are represented by circle. Areas bounded by edges and nodes are called regions. When counting regions, we also include the area outside the graph as a region.
Complexity is computed in one of three ways:
The total number of regions of the flow graph.
By using the formula defined as:
V(G) = E - N + 2
Cyclomatic complexity, V(G), for a flow graph, G, is also defined as
V(G) = P + 1 ,where P is the number of predicate nodes contained in the flow graph G.
Note: Nodes that contain a condition is called a predicate node and is characterized by two or more edges originating from it.

Find out the Cyclomatic complexity V(G) of the given below flow graph.

In the above flow graph there are total 9 nodes, 11 edges, and 4 regions.
1. The flow graph has four regions.
2. V(G) = 11 edges- 9 nodes + 2 = 4.
3. V(G) = 3 predicate nodes + 1 = 4.

Describe Condition testing in brief.

Condition testing works on logical conditions contained in a program module. A simple condition is a Boolean variable or a relational expression. A relational expression takes the form
E1 <relational-operator>E2
Where E1 and E2 are arithmetic expressions and <relational-operator> is one of the following: <, ≤,=, ≠ (not equal to), >, or ≥. A compound condition is created by using two or more simple conditions, Boolean operators, and parentheses. Conditional error is generated if Boolean variable, relational operator or Boolean operator is incorrectly used.
The purpose of condition testing is to detect errors in the conditions of a program.
1.What are the common problems with software automation?
2. What is the role of QA in a project development?
3. What is the value of a testing group? How do you justify your work and budget?
4. What are the key challenges of software testing?
5. What are the roles of glass-box and black-box testing tools?
6. What is the difference in writing the test cases for Integration testing and system testing?
7. What is "bug leakage?" and what is "bug release?"
8. How do you develop a test plan and schedule? Describe bottom-up and top-down approaches.
9. What's the role of CMM Level in Testing?
10. What is the difference between build and release?
11. What is risk analysis? What does it have to do with Severity and Priority?
12. How do you differentiate the roles of Quality Assurance Manager and Project Manager?
13. Explain Software Testing. Why is it important to conduct the testing of a software?
14. Explain a.) Quality Assurance b.) Quality Control c.) Test Case d.) Test Condition e.) Test Script f.) Test Data g.) Test Bed
15. Differentiate between a.) Testing and Debugging b.) Two tier and Three tier architecture c.) Alpha testing and Beta testing d.) Static testing and dynamic testing
16. Explain a.)Recovery Testing b.)Integration Testing c.)Incremental Testing d.)Architecture based software testing e.)Disaster Recovery Testing
17. What is a software project test plan?
18. When do you choose automated testing over manual testing?
19. Differentiate between a.) Software Quality Assurance and Software Quality Control b.) Severity and Priority c.) Clear box testing and Ad-hoc Testing
20. What is Software Quality and Software Configuration Management?
21. Explain a.)Upward Compression testing b.)Usability Testing c.)Gray box testing d.)Structural Testing e.) Reliability Testing
22. Differentiate between smoke testing and sanity testing.
23. Exlpain a.) Test Methodology b.) Test Scenario c.) Test Case d.) Requirement traceability matrix
24. What is STLC?
25. What would you do if you see a functionality in the software which was not there in the requirements?
26. What is automation testing? Can automating a test improve the effectiveness of test?
27. What are the various automation tools availble in testing? How will you decide on a tool for test automation?
28. How would you plan test automation?
29. Can automation testing replace manual testing? Explain your answer.
30. What are the benefits of test automation?
31. What type of problems can arise due to test automation?
32. What are the various testing activities that you may want to automate?
33. What are the scripting techniques available for test automation?
34. Explain data-driven automation.
35. Is it possible to automate the activities of test case design? Explain.
36. What can be the limitations of automating software testing?
37. What are principles of good testing scripts for automation?
38. What testing activities would you automate in a testing project?
39. What skills would you look for in an automation tester?
40. Explain a.) Stress testing b.)Load testing
41. Explain a.) Verify mode b.) Debug mode c.) Update mode
42. Situation: You want to perform backend testing with the help of SQL scripts for verification of data integrity. How would you do that?
43. Situation: You want to verify the font size and program in a program. You do not have access to the code. How would you approach this?
44. What naming conventions do you use while naming the automated test scripts?
45. Differentiate between GUI checkpoint and synchronization.
46. Explain a.) Memory leaks b.) Configuration management c.) Buffer overflows d.) Automation test framework
47. Situation: You are required to find someone's password using winrunner. How would you do that?
48. What is the difference between versions 7.6, 8.0, 8.2 of winrunner?
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