Free PCET-30-01 sample questions

Correct answer: Software testing is the process of verifying that software meets its intended requirements and detecting defects.

The primary purpose of software testing is to verify that the software behaves as expected, meets intended requirements, and detects defects early. Testing can show the presence of defects but cannot prove their absolute absence.

Correct answer: The absence-of-defects fallacy, which states that testing can show the presence of defects, but cannot prove their absolute absence.

A core principle of testing is that it can only show the presence of defects, not prove their absence. Exhaustive testing is impossible in complex systems, making a "100% bug-free" guarantee a fallacy. flowchart TD A[Testing Execution] --> B{Bugs Found?} B -->|Yes| C[Defects Present] B -->|No| D[Confidence Increased] D --> E[Cannot Guarantee 100% Bug-Free]

Correct answer: Error -> Defect -> Failure

The correct chain of issues is Error (the human mistake of misinterpreting the requirement) -> Defect/Bug (the flawed logic written in the code) -> Failure (the incorrect behavior observed by the user in production).

Correct answer: A user clicks the 'Submit' button on a form and the application crashes with a 500 Internal Server Error.

A failure is the physical manifestation of a defect during execution, resulting in incorrect software behavior (like an application crash). The other options represent errors (human mistakes) or defects (flaws in the code/documentation).

Correct answers: Defects are caught earlier in the process, significantly reducing the cost and effort required to fix them.; Testers collaborate closely with developers and designers during the requirements and design phases to prevent defects.

Shift-Left testing involves introducing testing early in the SDLC (moving it to the 'left' on a timeline). This allows teams to catch defects when they are cheapest to fix and encourages collaboration between testers, developers, and analysts during requirements gathering.

Shift-Left testing involves introducing testing early in the SDLC (moving it to the 'left' on a timeline). This allows teams to catch defects when they are cheapest to fix and encourages collaboration between testers, developers, and analysts during requirements gathering.

Correct answer: Agile emphasizes continuous testing throughout development sprints, whereas Waterfall typically isolates testing to a specific late stage.

In Agile, testing is a continuous activity that happens in parallel with development throughout the project. In Waterfall, testing is typically a distinct phase that occurs only after the development phase is complete.