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Welcome to the Software Testing MCQs Page

Dive deep into the fascinating world of Software Testing with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Software Testing, a crucial aspect of Software Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Software Testing, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Software Engineering.

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Check out the MCQs below to embark on an enriching journey through Software Testing. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Software Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Software Testing. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Software Testing MCQs | Page 32 of 43

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Q311.
What are the two types of variable use in dataflow analysis?

a.

P-uses and C-defs

b.

C-uses and C-defs

c.

P-uses and C-uses

d.

P-defs and C-defs

Discuss
Answer: (c).P-uses and C-uses Explanation:In dataflow analysis, there are two types of variable use: P-uses and C-uses. P-uses are predicate uses and C-uses are all other uses, such as uses in computations or I/O statements.
Q312.
What is All-Uses coverage in dataflow analysis?

a.

A method of testing each possible use of a definition

b.

A method of testing each definition of a variable

c.

A method of testing each definition-clear path

d.

A method of testing each use of a variable

Discuss
Answer: (a).A method of testing each possible use of a definition Explanation:All-Uses coverage is a method of testing in which tests are constructed to traverse a definition-clear path between each definition of a variable to each (P- or C-) use of that definition and each successor of that use.
Q313.
What is All-DU-Paths coverage in dataflow analysis?

a.

A method of testing each definition-clear path that is cycle-free or a simple cycle

b.

A method of testing each definition of a variable

c.

A method of testing each possible use of a definition

d.

A method of testing each use of a variable

Discuss
Answer: (a).A method of testing each definition-clear path that is cycle-free or a simple cycle Explanation:All-DU-Paths coverage is defined as a method of testing each definition-clear path that is cycle-free or a simple cycle.
Q314.
What is All-defs coverage in dataflow analysis?

a.

A method of testing each definition of a variable

b.

A method of testing each possible use of a definition

c.

A method of testing each definition-clear path

d.

A method of testing each use of a variable

Discuss
Answer: (a).A method of testing each definition of a variable Explanation:All-defs coverage is a method of testing in which the test set is such that each definition is used at least once.
Q315.
What is dataflow analysis?

a.

A method for guiding testing in a program

b.

A way of tracking variables in a program

c.

A technique for optimizing program performance

d.

A method for error detection in a program

Discuss
Answer: (b).A way of tracking variables in a program Explanation:The dataflow analysis is concerned with considering the definitions and uses of variables in a program.
Q316.
What is the difference between P-uses and C-uses of a variable in dataflow analysis?

a.

P-uses are used in computations, while C-uses are used in predicates

b.

P-uses are used in predicates, while C-uses are used in computations or I/O statements

c.

P-uses are used in I/O statements, while C-uses are used in computations or predicates

d.

P-uses are used in computations or I/O statements, while C-uses are used in predicates

Discuss
Answer: (b).P-uses are used in predicates, while C-uses are used in computations or I/O statements Explanation:P-uses are predicate uses, such as those in the conditional part of an if-statement, while all other uses are C-uses.
Q317.
What is the purpose of All-Uses coverage in dataflow analysis?

a.

To ensure that each definition of a variable is tested

b.

To ensure that each use of a definition is tested

c.

To ensure that each definition-clear path is cycle-free or a simple cycle

d.

To ensure that each definition-clear path is exercised

Discuss
Answer: (b).To ensure that each use of a definition is tested Explanation:The goal of All-Uses coverage is to construct tests that traverse a definition-clear path between each definition of a variable to each use of that definition and each successor of that use, in order to be sure that each possible use of a definition is being tested.
Q318.
What is the difference between All-DU-Paths coverage and All-Uses coverage in dataflow analysis?

a.

All-DU-Paths coverage requires definition-clear paths to be cycle-free or a simple cycle, while All-Uses coverage does not

b.

All-Uses coverage requires definition-clear paths to be cycle-free or a simple cycle, while All-DU-Paths coverage does not

c.

All-Uses coverage requires each use of a definition to be tested, while All-DU-Paths coverage requires each definition-clear path to be exercised

d.

All-DU-Paths coverage requires each use of a definition to be tested, while All-Uses coverage requires each definition-clear path to be exercised

Discuss
Answer: (a).All-DU-Paths coverage requires definition-clear paths to be cycle-free or a simple cycle, while All-Uses coverage does not Explanation:A possible test strategy is to construct tests which traverse a definition-clear path between each definition of a variable to each (P- or C-) use of that definition and each successor of that use. This strategy is known as All-Uses coverage. A slightly stronger criterion requires that each definition-clear path is either cycle-free or a simple cycle. This is known as All-DU-Paths coverage. This means that All-Uses coverage requires each definition of a variable to be tested, while All-DU-Paths coverage requires each definition-clear path to be either cycle-free or a simple cycle.
Q319.
What is All-C-uses/Some-P-uses coverage in dataflow analysis?

a.

A method of testing definition-clear paths from each definition to each computational use

b.

A method of testing definition-clear paths from each definition to each predicate use

c.

A method of testing each possible use of a definition

d.

A method of testing definition-clear paths from each definition to each computational use, and at least one definition-clear path to a predicate use if a definition is used only in predicates.

Discuss
Answer: (a).A method of testing definition-clear paths from each definition to each computational use Explanation:In dataflow analysis, All-C-uses/Some-P-uses coverage requires definition-clear paths from each definition to each computational use, which are uses in computations or I/O statements. If a definition is used only in predicates, at least one definition-clear path to a predicate use must be exercised. This criterion ensures that all computational uses and at least one predicate use of a definition is being tested.
Q320.
What is the main goal of coverage-based testing of requirements specifications?

a.

To transform program code into a graph model for testing purposes

b.

To assess the adequacy of requirements specifications in black-box and white-box testing techniques

c.

To partition the program domain into a small number of equivalence classes

d.

To determine a set of test cases based on control-flow coverage criteria

Discuss
Answer: (b).To assess the adequacy of requirements specifications in black-box and white-box testing techniques Explanation:The main goal of coverage-based testing of requirements specifications is to assess the adequacy of requirements specifications in both black-box and white-box testing techniques using coverage-based adequacy criteria.
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