ISTQB Foundational Exam Questions and
answers 100% Solved
Objectives of Testing - CORRECT ANSWER-Finding defects
Gaining confidence about quality
Providing information
Preventing defects
Evaluating work products
Verifying requirements are met
Reducing level of risk
Complying with requirements/standards
Static Testing - CORRECT ANSWER-static work products, document part of
testing life cycle; without executing
performed as reviews & static analysis
internal review, walkthrough technical review, inspection
,Dynamic Testing - CORRECT ANSWER-execution of the application
performed as levels of testing
unit, integration, system, UAT, and other non-functional testing
Testing - CORRECT ANSWER-testing deal with finding the defects by
conducting failure on the application or product
Debugging - CORRECT ANSWER-development activity which deals with
analyzing these defects, finding the root cause and removes the cause of defects
Error (Mistake) - CORRECT ANSWER-a human action that produces an
incorrect result
Fault (Defect, Bug) - CORRECT ANSWER-a manifestation of an error in
software; if executed, fault may cause a failure
Causes of Software Defects - CORRECT ANSWER-Time pressure
Human error
Inexperience
Miscommunication
Complexity
Misunderstandings
New/Unfamiliar
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
,Principles of Testing - CORRECT ANSWER-1) Testing shows presence of
defects, not their absence
2) Exhaustive Testing is impossible
3) Early Testing saves time and money
4) Defects Cluster Together
5) Beware of Pesticide Paradox
6) Testing is Context Dependent
7) Absence-of-Error is a Fallacy
"Testing shows presence of defects, not their absence" - CORRECT ANSWER-
We can't say there are no more defects
In case no defects are found, it's not a proof of correctness
"Exhaustive Testing is impossible" - CORRECT ANSWER-Testing everything,
which means all possible combinations of inputs and preconditions is generally not
feasible to be conducted
Risk analysis and priorities should be used to focus on testing efforts
"Early Testing saves time and money" - CORRECT ANSWER-Testers must be
involved as early as possible
Helps understand requirements earlier and prepare test cases earlier in life cycle
, "Defects Cluster Together" - CORRECT ANSWER-Possible that more defects
are clustered in smaller modules
Testers must consider and prepare proportional test cases to test such system
"Beware of Pesticide Paradox" - CORRECT ANSWER-If same tests are repeated
over and over again, eventually the same set of test cases will no longer help find
new defects
"Testing is Context Dependent" - CORRECT ANSWER-Testing is done
differently in different context
Two different software are testing with different strategy
"Absence-of-Error is a Fallacy" - CORRECT ANSWER-Meeting the requirement
is equally important
Finding and fixing defect doesn't help if the system built doesn't fulfill the users'
need and expectations
Test Process - CORRECT ANSWER-Test Planning
Test Monitoring and Control
Test Analysis
Test Design
Test Implementation
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
answers 100% Solved
Objectives of Testing - CORRECT ANSWER-Finding defects
Gaining confidence about quality
Providing information
Preventing defects
Evaluating work products
Verifying requirements are met
Reducing level of risk
Complying with requirements/standards
Static Testing - CORRECT ANSWER-static work products, document part of
testing life cycle; without executing
performed as reviews & static analysis
internal review, walkthrough technical review, inspection
,Dynamic Testing - CORRECT ANSWER-execution of the application
performed as levels of testing
unit, integration, system, UAT, and other non-functional testing
Testing - CORRECT ANSWER-testing deal with finding the defects by
conducting failure on the application or product
Debugging - CORRECT ANSWER-development activity which deals with
analyzing these defects, finding the root cause and removes the cause of defects
Error (Mistake) - CORRECT ANSWER-a human action that produces an
incorrect result
Fault (Defect, Bug) - CORRECT ANSWER-a manifestation of an error in
software; if executed, fault may cause a failure
Causes of Software Defects - CORRECT ANSWER-Time pressure
Human error
Inexperience
Miscommunication
Complexity
Misunderstandings
New/Unfamiliar
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
,Principles of Testing - CORRECT ANSWER-1) Testing shows presence of
defects, not their absence
2) Exhaustive Testing is impossible
3) Early Testing saves time and money
4) Defects Cluster Together
5) Beware of Pesticide Paradox
6) Testing is Context Dependent
7) Absence-of-Error is a Fallacy
"Testing shows presence of defects, not their absence" - CORRECT ANSWER-
We can't say there are no more defects
In case no defects are found, it's not a proof of correctness
"Exhaustive Testing is impossible" - CORRECT ANSWER-Testing everything,
which means all possible combinations of inputs and preconditions is generally not
feasible to be conducted
Risk analysis and priorities should be used to focus on testing efforts
"Early Testing saves time and money" - CORRECT ANSWER-Testers must be
involved as early as possible
Helps understand requirements earlier and prepare test cases earlier in life cycle
, "Defects Cluster Together" - CORRECT ANSWER-Possible that more defects
are clustered in smaller modules
Testers must consider and prepare proportional test cases to test such system
"Beware of Pesticide Paradox" - CORRECT ANSWER-If same tests are repeated
over and over again, eventually the same set of test cases will no longer help find
new defects
"Testing is Context Dependent" - CORRECT ANSWER-Testing is done
differently in different context
Two different software are testing with different strategy
"Absence-of-Error is a Fallacy" - CORRECT ANSWER-Meeting the requirement
is equally important
Finding and fixing defect doesn't help if the system built doesn't fulfill the users'
need and expectations
Test Process - CORRECT ANSWER-Test Planning
Test Monitoring and Control
Test Analysis
Test Design
Test Implementation
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
