- What is a bug in QA?
- What is STLC?
- Which is the oldest test technique *?
- What are the differences between fault failure and error?
- What is bug life cycle?
- Does fault lead to failure?
- What are the different status of bug?
- What is the first computer bug?
- What is the cost of a bug?
- In which phase the defect is less costly?
- What is the difference between bug and error?
- Which is the largest bug producer?
- Which of the following is an example of validation?
- What are the different types of error?
- When should you close a defect?
- Who performs acceptance testing?
- What is the difference between issue and defect?
- Which is not the state of a bug in bug life cycle?
- When should testing be stopped?
- Why is it called a bug?
- What is the most important component of a bug report?
What is a bug in QA?
“A software bug is a problem causing a program to crash or produce invalid output.
The problem is caused by insufficient or erroneous logic.
A bug can be an error, mistake, defect or fault, which may cause failure or deviation from expected results.” ( techopedia).
What is STLC?
STLC stands for Software Testing Life Cycle. STLC is a sequence of different activities performed by the testing team to ensure the quality of the software or the product. STLC is an integral part of Software Development Life Cycle (SDLC). … STLC provides a step-by-step process to ensure quality software.
Which is the oldest test technique *?
Waterfall Model. The waterfall model is one of the oldest models developed by Winston Royce in 1970. Also known as a linear-sequential life cycle model, the traditional waterfall testing approach represents multiple stages in a sequential manner that flows progressively downward(like a waterfall).
What are the differences between fault failure and error?
Fault : It is a condition that causes the software to fail to perform its required function. Error : Refers to difference between Actual Output and Expected output. Failure : It is the inability of a system or component to perform required function according to its specification.
What is bug life cycle?
Defect life cycle, also known as Bug Life cycle is the journey of a defect cycle, which a defect goes through during its lifetime. It varies from organization to organization and also from project to project as it is governed by the software testing process and also depends upon the tools used.
Does fault lead to failure?
Fault: The cause of the failure. Error: The mistake which caused the fault to occur.
What are the different status of bug?
Right from the first time any bug is detected till the point when the bug is fixed and closed, it is assigned various statuses which are New, Open, Postpone, Pending Retest, Retest, Pending Reject, Reject, Deferred, and Closed.
What is the first computer bug?
On September 9, 1947, the world’s first computer bug was recorded. But this was no ordinary ‘software bug’. It was a real-life moth that was causing the issues with the computer’s hardware. This “first actual case of bug being found” was recorded by computer scientist Grace Hopper.
What is the cost of a bug?
To illustrate: if a bug is found in the requirements-gathering phase, the cost could be $100. If the product owner doesn’t find that bug until the QA testing phase, then the cost could be $1,500.
In which phase the defect is less costly?
Solution: The software development phases are- Requirement, design, coding and then implementation. If any defect is introduced in any phase, then that defect creates multiple defects in other stages.
What is the difference between bug and error?
“A mistake in code is called Error . ” Error found by tester is called defect , Defect accepted by development team is called Bug . And build does not meet the requirements then it is Failure .
Which is the largest bug producer?
SpecificationSpecification is largest bug producer – Basic concepts of Software Testing.
Which of the following is an example of validation?
Difference Between Verification and ValidationVerificationValidationInvolves all the static testing techniques.Includes all the dynamic testing techniques.Examples include reviews, inspection, and walkthrough.Example includes all types of testing like smoke, regression, functional, systems and UAT.4 more rows•Nov 13, 2020
What are the different types of error?
Errors are normally classified in three categories: systematic errors, random errors, and blunders. Systematic errors are due to identified causes and can, in principle, be eliminated. Errors of this type result in measured values that are consistently too high or consistently too low.
When should you close a defect?
Closed: If the bug is no longer exists then tester assigns the status “Closed.” Duplicate: If the defect is repeated twice or the defect corresponds to the same concept of the bug, the status is changed to “duplicate.”
Who performs acceptance testing?
User Acceptance Testing (UAT) is a type of testing performed by the end user or the client to verify/accept the software system before moving the software application to the production environment. UAT is done in the final phase of testing after functional, integration and system testing is done.
What is the difference between issue and defect?
An issue can be a bug or a defect. The term issue is often used with clients to indicate that the problem not necessarily is faulty code. A defect can also be a bug, but for me a defect is a piece of code that works- but doesn’t do what it is expected to do.
Which is not the state of a bug in bug life cycle?
Solution: The status of Bug in Bug life cycle is New, Assigned, Verified, Closed, Reopened, Deferred, Rejected, and Postponed. Therefore, Critical is correct answer.
When should testing be stopped?
1) Stop the testing when the committed / planned testing deadlines are about to expire. 2) Stop the testing when we are not able to detect any more errors even after execution of all the planned test Cases.
Why is it called a bug?
The term “bug” was used in an account by computer pioneer Grace Hopper, who publicized the cause of a malfunction in an early electromechanical computer. … Operators traced an error in the Mark II to a moth trapped in a relay, coining the term bug. This bug was carefully removed and taped to the log book.
What is the most important component of a bug report?
The description should explain exactly the steps to take to reproduce the defect, along with what the expected results were and what the outcome of the test step was. The report should say at what step the failure was observed.