11. What is end-to-end testing in Software Testing?
A: Similar to system testing, the 'macro' end of the test scale is testing a complete application in a situation that mimics real world use, such as interacting with a database, using network communication, or interacting with other hardware, application, or system.
12. What is regression testing in Software Testing?
A: The objective of regression testing is to ensure the software remains intact. A baseline set of data and scripts is maintained and executed to verify changes introduced during the release have not "undone" any previous code. Expected results from the baseline are compared to results of the software under test. All discrepancies are highlighted and accounted for, before testing proceeds to the next level.
Re-testing after fixes or modifications of the software or its environment. It can be difficult to determine how much re-testing is needed, especially near the end of the development cycle. Automated testing tools can be especially useful for this type of testing.
13. What is sanity testing in Software Testing?
A: Sanity testing is performed whenever cursory testing is sufficient to prove the application is functioning according to specifications. This level of testing is a subset of regression testing. It normally includes a set of core tests of basic GUI functionality to demonstrate connectivity to the database, application servers, printers, etc.
Another Definition of Sanity testing
Typically an initial testing effort to determine if a new software version is performing well enough to accept it for a major testing effort. For example, if the new software is crashing systems every 5 minutes, bogging down systems to a crawl, or destroying databases, the software may not be in a 'sane' enough condition to warrant further testing in its current state
14. What is performance testing in Software Testing?
A: Although performance testing is described as a part of system testing, it can be regarded as a distinct level of testing. Performance testing verifies loads, volumes and response times, as defined by requirements.
Another Definition :-
Term often used interchangeably with 'stress' and 'load' testing. Ideally 'performance' testing (and any other 'type' of testing) is defined in requirements documentation or QA or Test Plans
15. What is load testing in Software Testing?
A: Load testing is testing an application under heavy loads, such as the testing of a web site under a range of loads to determine at what point the system response time will degrade or fail.
Load testing simulates the expected usage of a software program, by simulating multiple users that access the program's services concurrently. Load testing is most useful and most relevant for multi-user systems, client/server models, including web servers. For example, the load placed on the system is increased above normal usage patterns, in order to test the system's response at peak loads.
16. What is installation testing in Software Testing?
A: Installation testing is testing full, partial, upgrade, or install/uninstall processes. The installation test for a release is conducted with the objective of demonstrating production readiness. This test includes the inventory of configuration items, performed by the application's System Administration, the evaluation of data readiness, and dynamic tests focused on basic system functionality. When necessary, a sanity test is performed, following installation testing.
17. What is security/penetration testing in Software Testing?
A: Security/penetration testing is testing how well the system is protected against unauthorized internal or external access, or willful damage. This type of testing usually requires sophisticated testing techniques.
18. What is recovery/error testing in Software Testing?
A: Recovery/error testing is testing how well a system recovers from crashes, hardware failures, or other catastrophic problems.
19. What is compatibility testing in Software Testing?
A: Compatibility testing is testing how well software performs in a particular hardware, software, operating system, or network environment.
20. What is comparison testing?
A: Comparison testing is testing that compares software weaknesses and strengths to those of competitors' products.
21. What is acceptance testing in Software Testing?
A: Acceptance testing is black box testing that gives the client/customer/project manager the opportunity to verify the system functionality and usability prior to the system being released to production. The acceptance test is the responsibility of the client/customer or project manager, however, it is conducted with the full support of the project team. The test team also works with the client/customer/project manager to develop the acceptance criteria.
22. What is alpha testing in Software Testing?
A: Alpha testing is testing of an application when development is nearing completion. Minor design changes can still be made as a result of alpha testing. Alpha testing is typically performed by a group that is independent of the design team, but still within the company, e.g. in-house software test engineers, or software QA engineers.
Alpha testing is final testing before the software is released to the general public. First, (and this is called the first phase of alpha testing), the software is tested by in-house developers. They use either debugger software, or hardware-assisted debuggers. The goal is to catch bugs quickly. Then, (and this is called second stage of alpha testing), the software is handed over to us, the software QA staff, for additional testing in an environment that is similar to the intended use.
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