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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q111-Q116):

NEW QUESTION # 111
You are a senior Technical Test Analyst on a new government project for the Air Force. The software you are testing is used to control the hydraulics for the landing gear for a supersonic, stealth aircraft. You are responsible for organizing the white-box testing that will be performed for this project.
Which of the following would be the most appropriate technique to apply in this situation?

A. Decision / condition coverage
B. Maximum condition / multiple decision coverage
C. Multiple condition coverage
D. Modified condition / decision coverage

Answer: D

Explanation:
In a high-risk environment such as controlling aircraft hydraulics, Modified Condition/Decision Coverage (MC/DC) is crucial. This technique ensures that all conditions within a decision have been tested independently, which is vital for understanding the impact of each condition on the decision's outcome.
MC/DC is often required in safety-critical systems like aerospace software to achieve a high level of confidence in the software's reliability and safety .

NEW QUESTION # 112
Consider the following specification:

If you are flying with an economy ticket, there is a possibility that you may get upgraded to business class, especially if you hold a gold card in the airline's frequent flier program. If you don't hold a gold card, there is a possibility that you will get 'bumped' off the flight if it is full when you check in late.
This is shown in the control flow graph below. Note that each box (i.e., statement, decision) has been numbered.
Three tests have been run:
Test 1: Gold card holder who gets upgraded to business class
Test 2: Non-gold card holder who stays in economy
Test 3: A person who is bumped from the flight
What is the level of decision coverage achieved by these three tests?

A. 75%
B. 60%
C. 67%
D. 80%

Answer: C

Explanation:
The control flow graph provided illustrates the decision points for an airline's upgrade and boarding process. Decision coverage is a measure of the percentage of decision points executed during testing:
Test 1 covers the decision points: Gold card? (Yes) and Business full? (No).
Test 2 covers: Gold card? (No) and Economy full? (No).
Test 3 covers the decision that leads to being bumped from the flight, which is Economy full? (Yes) and Business full? (Yes).
From the given tests, the decision points for Gold card? (No) and Business full? (No) are not tested, leaving us with 4 out of 6 decision points covered, which is approximately 67% decision coverage.

NEW QUESTION # 113
A component has been analysed during a risk-assessment and rated as highly critical. Which of the following white-box test techniques provides the highest level of coverage and could therefore be used to test this component?

A. Decision testing
B. Multiple condition testing
C. Modified condition/decision testing
D. Statement testing

Answer: C

Explanation:
Modified condition/decision testing (MC/DC) provides a higher level of coverage compared to other white-box testing techniques because it requires each condition in a decision to be shown to independently affect that decision's outcome. It is more rigorous than both decision testing (which only requires each decision's possible outcomes to be tested) and statement testing (which requires only each executable statement to be executed). Therefore, for a highly critical component, MC/DC is more appropriate as it ensures a more thorough assessment of the logic in the software component.

NEW QUESTION # 114
An enhancement to a Social Media application allows for the creation of new Groups. Any number of existing application members can be added to a Group. An attempt to add a non-existent member of the application to a Group will result in an error, as will an attempt to add the same member twice. Members can be removed from an existing Group. An existing Group can be deleted but only if there are no current members attached to it.
Which one of the following Keyword-driven input tables provides the BEST test coverage of this enhancement?
Table 1
KeywordGroup IdMember Id
Create.GroupGroup3
Add_MemberGroup3@Member1
Add.MemberGroup3(a)Member2
Delete_GroupGroup3
Remove.MemberGroup3@Memberl
Remove_MemberGroup3@)Member2
Delete.GroupGroup3
Result
Group created
Member added to Group
Member added to Group
Error - Group not empty
Member removed from group
Member removed from group
Group deleted
Table 2
KeywordGroup IdMember IdResult
Create.GroupGrouplGroup created
Add.MemberGrouplMember4Error - member does not exist
Add.MemberGroupl(MemberlMember added to Group
Delete.GroupGrouplError - Group not empty
Remove_Member@Member 1Member removed from group
Delete.GroupGrouplGroup deleted
Table 3
KeywordGroup IdMember IdResult
Create.GroupGroup3Group created
Add.MemberGroup3Member9Error - member does not exist
Add.MemberGroup3(MemberlMember added to Group
Add_MemberGroup 3(MemberlError - member already in group
Delete.GroupGroup3Error - Group not empty
Remove-MemberGroups(Member 1Member removed from group
Delete.GroupGroupsGroup deleted
Table 4
KeywordGroup IdMember IdResult
Create.GroupGrouplGroup created
Add.MemberGroupl@Member3Member added to Group
Add.MemberGroupl@Member3Error - member already in group
Delete.GroupGrouplError - Group not empty
Remove.MemberGroupl@Member1Member removed from group
Delete.GroupGrouplGroup deleted
SELECT ONE OPTION

A. Table 3
B. Table 1
C. Table 2
D. Table 4

Answer: A

Explanation:
Table 3 provides the best test coverage for the described scenario, as it includes various key test conditions:
* Attempting to add a non-existent member, resulting in an error.
* Trying to add a member twice to the same group, leading to an error for duplicate entry.
* Removing a member from the group.
* Attempting to delete a group that is not empty, which correctly results in an error, and finally deleting a group when it is empty.
This table most comprehensively covers the functionalities and error handling specified in the enhancement details, effectively testing all scenarios including normal and exceptional behavior .

NEW QUESTION # 115
Given the following pseudocode:
Program tax check
BEGIN
yearly := 0
tax := 0
get (monthly)
get (tax_rate)
for I = 1..12 loop
yearly := yearly + monthly
tax := tax - (tax_rate * monthly)
ENDLOOP
salary := monthly * 12
IF salary = yearly THEN
print ("Salary OK")
ELSE
print ("Salary not OK")
ENDIF
year_tax := salary * tax_rate
IF year_tax = tax THEN
print ("Tax Problem")
ENDIF
END tax check
If control flow analysis is performed on the pseudocode, which of the following results is MOST likely?

A. Unreachable code at line 19
B. No unreachable code
C. Unreachable code at line 15
D. Unreachable code at lines 15 and 19

Answer: A

Explanation:
Control flow analysis is a technique used to examine the sequence in which instructions or statements are executed within a program. In the given pseudocode, the key aspects to consider are the logical flow and any conditional branches that may lead to unreachable code.
The pseudocode provided is:
Program tax check
BEGIN
yearly := 0
tax := 0
get (monthly)
get (tax_rate)
for I = 1..12 loop
yearly := yearly + monthly
tax := tax - (tax_rate * monthly)
ENDLOOP
salary := monthly * 12
IF salary = yearly THEN
print ("Salary OK")
ELSE
print ("Salary not OK")
ENDIF
year_tax := salary * tax_rate
IF year_tax = tax THEN
print ("Tax Problem")
ENDIF
END tax check
Analysis:
* Initialization and Input:yearly and tax are initialized to 0. The program takes monthly and tax_rate as
* input.
* Loop Execution:The loop runs from 1 to 12, accumulating monthly into yearly and adjusting tax accordingly.
* Salary Calculation and Check:After the loop, salary is calculated as monthly * 12. The program then checks if salary is equal to yearly. Given the loop accumulates monthly into yearly 12 times, salary will always equal yearly, making the IF salary = yearly condition always true. Thus, the "Salary OK" message will always be printed, and the ELSE branch will never be executed.
* Yearly Tax Calculation and Check:year_tax is calculated as salary * tax_rate. Then, it checks if year_tax is equal to tax. However, due to the accumulation and subtraction inside the loop, tax would likely not equal year_tax, making the condition IF year_tax = tax false in most practical scenarios.
Therefore, the "Tax Problem" message at line 19 is unlikely to be printed.
Conclusion:
Given this flow, the ELSE block associated with the IF salary = yearly condition (line 15) is unreachable.
However, the critical analysis indicates that the code at line 19, which prints "Tax Problem", is also unreachable due to the logic flow where the condition is rarely true.
Thus, the result is that line 19 is more certainly unreachable.

NEW QUESTION # 116
......

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TEST CTAL-TTA QUESTIONS & CTAL-TTA VALID DUMP

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