Computer Knowledge

Software Testing and Quality Control

2,598 Questions

Software testing and quality control questions cover testing methodologies, unit testing, and defect management. These concepts are crucial for the computer knowledge sections of competitive exams. Practice these questions to understand verification and validation processes thoroughly.

Quality control typesUnit testing purposeSoftware vulnerability testingTest planning tasksLoop testing criteriaTest harness functions

Software Testing and Quality Control Questions

Multiple choice technology security

Which tool can be used for system vulnerability test

  1. Nessus

  2. HP Web Inspect

  3. TAM

  4. SDL
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct answer is A. Nessus.

Nessus is a widely used tool for system vulnerability testing. It helps identify and assess vulnerabilities in various systems and networks. It performs scans to detect potential weaknesses and provides detailed reports on the vulnerabilities found. Nessus is known for its extensive vulnerability database and its ability to perform comprehensive security assessments.

Options B, C, and D are not specifically designed for system vulnerability testing:

B. HP Web Inspect: HP Web Inspect is a web application security testing tool that focuses on identifying vulnerabilities in web applications, rather than system vulnerabilities.

C. TAM: It is unclear what "TAM" refers to in this context. Without more information, it is difficult to determine if it is a tool suitable for system vulnerability testing.

D. SDL: SDL stands for "Security Development Lifecycle," which is a methodology for developing secure software. It is not a specific tool used for system vulnerability testing.

Therefore, option A, Nessus, is the most appropriate tool for system vulnerability testing.

Multiple choice technology security

When you are performing EQA of an application developed by another project, you are doing

  1. white box testing

  2. black box testing

  3. security testing

  4. vulnerability testing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When performing EQA (External Quality Assurance) on an application developed by another team, you have access to the source code and internal architecture. This visibility into the codebase allows you to examine code structure, dependencies, and internal logic, which characterizes white box testing rather than black box testing.

Multiple choice technology security

_________is a free static code analysis tool from Microsoft that checks .NET managed code assemblies for conformance to Microsoft's .NET Framework Design Guidelines

  1. MsCop

  2. FxCop

  3. RsCop

  4. DxCop
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

FxCop is Microsoft's free static code analysis tool for .NET managed code. It analyzes assemblies for compliance with Microsoft's .NET Framework Design Guidelines, checking for naming conventions, library design, performance, security, and other best practices. It helps developers identify potential issues before deployment.

Multiple choice

Which of the following android applications cannot be tested on emulator?

  1. Application which just displays text on button click

  2. Application which does basic mathematical operations

  3. Application which shows date & time

  4. Application which uses sensors like camera, GPS, etc

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are various sensors on  android phones, e.g. GPS, camera, accelerometer that cannot be tested on emulator.

Multiple choice

The following program is to be tested for statement coverage: begin if (a = = b) {S1; exit;} else if (c = = d) {S2;} else {S3; exit;} S4; end The test cases T1, T2, T3 and T4 given below are expressed in terms of the properties satisfied by the values of variables a, b, c and d. The exact values are not given. T1 : a, b, c and d are all equal T2 : a, b, c and d are all distinct T3 : a=b and c !=d T4 : a !=b and c=d

Which of the test suites given below ensures coverage of statements S1, S2, S3 and S4?

  1. T1, T2, T3

  2. T2, T4

  3. T3, T4

  4. T1, T2, T4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Multiple choice

Which of the following is/are correct about Virtual Machine Migration Test in Hyper-V?

  1. This tool is used to provide the support features like migration for Virtual Machines.

  2. It checks the compatibility issues for the nodes.

  3. This tool tests the stability of the nodes.

  4. This tool is used to check Pre-test a group of new nodes to a specific destination server.

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

All are the correct statements about Virtual Machine Migration Test in Hyper-V.

Multiple choice

The following is comment written for a C function

/* This function computes the roots of a quadratic equation
a.x<sup>2</sup>+b.x+c = 0. The function stores two real roots
in *root1 and *root2 and returns the status of validity of
roots. It handles four different kinds of cases.
(i) When coefficient a is zero irrespective of discriminant
(ii) When discriminant is positive
(iii) When discrimanant is zero
(iv) When discrimanant is negative
Only in cases (ii) and (iii), the stored roots are valid.
Otherwise 0 is stored in the roots, the function returns 0 when the roots are valid and -1 otherwise.
The function also ensures root1 greater than or equal to root2.
int get_QuadRoots float a, float b, float c, float *root1, float *root2;
*/

A software test engineer is assigned the job of doing black box testing. He comes up with the following test cases, many of which are redundant.

Test Case Input set Expected Output set
--- --- ---
a b
T1 0.0 0.0
T2 0.0 1.0
T3 1.0 2.0
T4 4.0 -12.0
T5 1.0 -2.0
T6 1.0 1.0

Which one of the following options provide the set of non-redundant tests using equivalence class, partitioning approach from input perspective for black box testing?

  1. T1, T2, T3, T6

  2. T1, T3, T4, T5

  3. T2, T4, T5, T6

  4. T2, T3, T4, T5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

T1 and T2 checking same condition a = 0 Hence, any one of T1 and T2 is redundant. T3, T4: in both case discriminant (D) = b2 – 4ac = 0. Hence, any one of it is redundant. T5 : D>0 T6 : D<0

Multiple choice

The tester now tests the program on all input strings of length five consisting of characters ‘a’, ‘b’, ‘c’, ‘d’ and ‘e’ with duplicates allowed. If the tester carries out this testing with the four test cases given above, how many test cases will be able to capture the flaw?

  1. Only one

  2. Only two

  3. Only three

  4. All four
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Flaw in this given procedure is that one character of Array ‘A’ that can be replaced by more than one characters of 'newc' array, which should not be so. Test cases (3) and (4) identify this flaw as they are containing ‘oldc’ and ‘newc’ array characters arranged in specific manner. Following string can reflect flaw, if tested by test case (3).

Likewise, single character ‘b’ in A is replaced by ‘c’ and then by ‘d’. Same way, test case (4) can also catch the flaw.