Software Testing Questions

Q:

Which is the simplest file structure?

A) Sequential B) Indexed
C) Random D) None
 
Answer & Explanation Answer: A) Sequential

Explanation:

Sequential is the simplest file structure

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Q:

Unreachable code would best be found using

A) code inspections B) a static analysis tool
C) code reviews D) a test management tool
 
Answer & Explanation Answer: C) code reviews

Explanation:

Code review is a software quality assurance activity in which one or several humans check a program mainly by viewing and reading parts of its source code, and they do so after implementation or as an interruption of implementation.

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10 7672
Q:

What is "bug leakage?" and what is "bug release?"

Answer

A bug leakage results when a bug is detected which should have been detected in earlier builds/versions of the application.


A defect which exists during testing yet unfound by the tester which is eventually found by the tester/end-user is also called bug leakage.


A bug release is when a particular version of s/w is released with a set of known bug(s)/defect(s). These bugs are usually low severity and/or low priority bugs. It is done when the company can afford the existence of bug in the released s/w rather than the time/cost for fixing it in that particular version. These bugs are usually mentioned in the Release Notes.

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Subject: Software Testing

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Q:

main()

{

float me = 1.1;

double you = 1.1;

if(me==you)

printf("yes");

else

printf("No");

}

A) Yes B) No
C) Both D) Compilation error
 
Answer & Explanation Answer: B) No

Explanation:

For floating point numbers (float, double, long double) the values cannot be predicted exactly. Depending on the number of bytes, the precession with of the value represented varies. Float takes 4 bytes and long double takes 10 bytes. So float stores 0.9 with less precision than long double.

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Job Role: Software Architect

7 5155
Q:

Which of the following is not a static testing technique?

A) Inspections B) Data flow analysis
C) Error guessing D) Walkthrough
 
Answer & Explanation Answer: C) Error guessing

Explanation:

Static Testing, a software testing technique in which the software is tested without executing the code. This Techniques provide a powerful way to improve the quality and productivity of software development by assisting engineers to recognize and fix their own defects early in the software development process.

 

It has two parts as listed below:

Review - Typically used to find and eliminate errors or ambiguities in documents such as requirements, design, test cases, etc.

Static analysis - The code written by developers are analysed (usually by tools) for structural defects that may lead to defects.

 

In this software is tested without executing the code by doing Review, Walk Through, Inspection or Analysis etc.

 

Hence, Error guessing is not a static software testing technique.

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2 4618
Q:

Of the following tree structure, which is, efficient considering space and time complexities?

A) Incomplete Binary Tree B) Complete Binary Tree
C) Full Binary Tree D) None
 
Answer & Explanation Answer: B) Complete Binary Tree

Explanation:

Full binary tree loses its nature when operations of insertions and deletions are done. For incomplete binary trees, extra storage is required and overhead of NULL node checking takes place. So complete binary tree is the better one since the property of complete binary tree is maintained even after operations like additions and deletions are done on it.

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Q:

Which of the following is not part of performance testing?

A) simulating many users B) measuring response times
C) generating many transactions D) recovery testing
 
Answer & Explanation Answer: D) recovery testing

Explanation:

In software engineering, performance testing is in general, a testing practice performed to determine how a system performs in terms of responsiveness and stability under a particular workload.

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Q:

What is the type of the algorithm used in solving the 8 Queens problem ?

A) Dynamic Programming B) BackTracking
C) Branch and Bound D) None
 
Answer & Explanation Answer: B) BackTracking

Explanation:

BackTracking is used for solving N-Queens problem

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