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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q26-Q31):

NEW QUESTION # 26
You are planning an exploratory test session for the current sprint which includes the following user stories:
User Story AA-008
As a booked customer of Alpha Airways
I want to access an open flight reservation
So that I can update the booking details
User Story AA-012
As a booking clerk for Alpha Airways
I want to access a customer's flight reservation
So that i can view their reservation details
what three things should be considered when creating the session's test charter?
a)What are the user roles specified in the two user stories?
b)What level of coverage and efficiency was should be achieved by the session' c)Will the session fit within a 60 to 120 minutes time box' d)Do Will the findings from the exploratory sessions need to be documented?
e)What actions are performed by the user roles according to the acceptance criteria for these user stories' f)Should the exploratory session be automated' g)Has the Definition of Done been met for both user stories' SELECT ONE OPTION

A. c.f.g
B. a, b, d
C. d. e.f
D. a, c.e

Answer: B

Explanation:
For an exploratory test session, it is important to consider: a) The user roles specified in the user stories, to ensure testing aligns with user expectations and requirements. b) The level of coverage and efficiency to be achieved, to ensure the session is comprehensive and effective. d) The need for documentation of findings from the session, to ensure insights and issues are captured and communicated effectively.
These factors ensure that the exploratory testing is focused, efficient, and its outcomes are actionable and beneficial to the development process .

NEW QUESTION # 27
Consider the simplified logic below for crediting money to a bank account.
Receive money and account number to be credited
IF account number is valid
IF customer account is active
Store current account balance as oldBalance
Credit money to account
IF oldBalance < zero
IF balance now >= zero
Set message "Overdraft cleared"
ELSE
Set message "A/c overdrawn"
ENDIF
ELSE
Set message = "You have more money"
ENDIF
IF account holder is VIP customer
Send message by email to customer
ENDIF
ELSE
Set message "A/c inactive"
Send message by email to supervisor
ENDIF
ELSE
Add 1 to count of invalid inputs
ENDIF
What percentage of decision testing coverage has been achieved by the following suite of test cases?
Test Case A - Account number valid, account is active, oldBalance = -100, balance now = +200, not a VIP customer Test Case B - Account number valid, account is active, oldBalance = -100, balance now = -50, is a VIP customer

A. 60%
B. 80%
C. 70%
D. 40%

Answer: A

Explanation:
To determine the percentage of decision testing coverage achieved by the given suite of test cases, we need to analyze the decisions and outcomes in the provided logic.
Detailed Analysis
* Identify all decisions in the logic:
* IF account number is valid
* IF customer account is active
* IF oldBalance < zero
* IF balance now >= zero
* IF account holder is VIP customer
* Calculate the number of unique decisions:
* There are 5 unique decision points in the logic.
* Determine the possible outcomes for each decision:
* IF account number is valid 2 outcomes (True, False)
* IF customer account is active 2 outcomes (True, False)
* IF oldBalance < zero 2 outcomes (True, False)
* IF balance now >= zero 2 outcomes (True, False)
* IF account holder is VIP customer 2 outcomes (True, False)
Test Cases Analysis
Test Case A
* Account number valid True
* Account is active True
* OldBalance = -100 True (less than zero)
* Balance now = +200 True (greater than zero)
* Not a VIP customer False
Test Case B
* Account number valid True
* Account is active True
* OldBalance = -100 True (less than zero)
* Balance now = -50 False (less than zero)
* Is a VIP customer True
Coverage Calculation
To calculate the decision coverage, we need to see how many of the possible outcomes are covered by the test cases:
* IF account number is valid (True in both A and B, False not tested)
* IF customer account is active (True in both A and B, False not tested)
* IF oldBalance < zero (True in both A and B, False not tested)
* IF balance now >= zero (True in A, False in B, both outcomes tested)
* IF account holder is VIP customer (False in A, True in B, both outcomes tested) Out of the 10 possible outcomes (2 for each decision), the given test cases cover 6 outcomes:
* Account number valid True
* Account number valid False (not covered)
* Customer account active True
* Customer account active False (not covered)
* OldBalance < zero True
* OldBalance < zero False (not covered)
* Balance now >= zero True
* Balance now >= zero False
* Account holder is VIP True
* Account holder is VIP False
Thus, 6 out of the 10 outcomes are covered by the test cases, giving us a decision coverage percentage of:
Decision Coverage=(610)×100%=60% ext{Decision Coverage} = left(rac{6}{10} ight) imes 100% =
60%Decision Coverage=(106)×100%=60%
References:
* The sample questions and answers provided in the ISTQB CTAL-TTA documentation confirm this calculation method and the expected coverage percentage for similar logical scenarios.

NEW QUESTION # 28
The stakeholders in a new system want its mean time between failure to be three months or longer, with a mean time to repair the system of ten minutes or less when it does fail. When planning and specifying reliability tests to be performed before release, which ONE of the following is a factor that must be considered?

A. Monitoring reliability in production
B. Defining the replaceability requirements
C. Determining the target availability for the system
D. Configuring a production-like test environment

Answer: C

Explanation:
Analysis:
For a system to meet its reliability requirements, it must maintain a mean time between failure (MTBF) of three months or longer and a mean time to repair (MTTR) of ten minutes or less. When planning and specifying reliability tests, several factors must be considered to ensure these requirements are met.
Key Factor:
B: Determining the target availability for the system:
* Availability is a critical factor that encompasses both the MTBF and MTTR. Availability is calculated based on the uptime and downtime of the system, which directly correlates with MTBF and MTTR.
Determining the target availability helps ensure that the system can meet the required reliability standards by specifying acceptable levels of uptime and downtime.
Explanation of Incorrect Options:
* A. Defining the replaceability requirements:
* Replaceability pertains to the ease with which components can be replaced or updated. While important for maintainability, it is not the primary focus for reliability testing in this context.
* C. Monitoring reliability in production:
* Monitoring in production is important for ongoing reliability assessment but is not a primary consideration when planning and specifying tests before release.
* D. Configuring a production-like test environment:
* This is essential for accurate testing but is a logistical consideration rather than a direct factor in the reliability requirements.
References:
The ISTQB CTAL-TTA syllabus and standard practices in reliability testing emphasize the importance of availability metrics in planning reliability tests.
Sources:
* ISTQB-CTAL-TTA Syllabus
* General knowledge on reliability testing and availability.

NEW QUESTION # 29
Consider the following section of code:
If ((A > B) or (C > D)) and (E = F) then
print A:
Endif
Which of the following sets of test data can be used to achieve Modified Condition/Decision Coverage with the least number of tests?

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

Answer: C

Explanation:
For Modified Condition/Decision Coverage (MC/DC), each condition within a decision must independently affect the decision's outcome. The provided sets of values need to be analyzed to ensure that each component of the decision ((A > B) or (C > D) and (E = F)) can independently influence the result of the combined expression. Set 3 includes variations for all variables that allow each condition to be tested both true and false independently while keeping the overall expression's outcome affected. This choice provides the most efficient path to achieving MC/DC with minimal tests.

NEW QUESTION # 30
You have been assigned to perform a review on code provided below:

Which type of defect should you report as part of the code review?

A. Unreachable code
B. Endless loop
C. Too many nested levels
D. No defects should be reported, code is correct.

Answer: B

Explanation:
The code provided contains a potential endless loop. The loop is conditioned on the variable 'E' being less than 1 (IF E < 1), but within the loop, there is no operation that modifies the value of 'E'. Therefore, once the loop is entered, if the condition A > B holds true, the value of 'E' remains unchanged, leading to an endless loop situation. The decrement of 'A' in line 15 does not guarantee an exit condition for the loop, as it does not affect the value of 'E'. This is a control flow defect that could cause the program to hang or crash.

NEW QUESTION # 31
......

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