VALID ISTQB CTAL-TTA QUESTIONS: 100% AUTHENTIC [2025]

Valid ISTQB CTAL-TTA Questions: 100% Authentic [2025]

Valid ISTQB CTAL-TTA Questions: 100% Authentic [2025]

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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q101-Q106):

NEW QUESTION # 101
Given the following pseudo code for a program to solve quadratic equations:
program Quadratic Formula
integer: a, b, c, d
floating point: r1, r2
READ (a)
READ (b)
READ (c)
d := (b * b) - (4 * a * c)
IF d < 0 THEN
PRINT ("Imaginary Roots")
ELSE
r1 := (-b + sqrt(d)) / (2 * a)
r2 := (-b - sqrt(d)) / (2 * a)
PRINT ("first root is: " r1)
PRINT ("second root is: " r2)
ENDIF
END program Quadratic_Formula
Which of the following checklist items is MOST likely to indicate a problem in this program?

  • A. Are there any redundant or unused variables?
  • B. Are all variables properly defined with meaningful, consistent and clear names?
  • C. Does the code avoid comparing floating point numbers for equality?
  • D. Are divisors tested for zero or noise?

Answer: D

Explanation:
Analysis:
The given pseudo code for solving quadratic equations includes operations that involve division. One of the critical issues in such operations is ensuring that the divisor is not zero, which would result in a division by zero error.
Checklist Item:
D: Are divisors tested for zero or noise?:
* This checklist item addresses the potential problem of dividing by zero. In the pseudo code, the variable a is used as a divisor in the formula (-b ± sqrt(d)) / (2 * a). If a is zero, this will result in a division by zero error. Therefore, it is crucial to test whether a is zero before performing the division.
Explanation of Incorrect Options:
* A. Does the code avoid comparing floating point numbers for equality?:
* This is important but not directly relevant to the given pseudo code's primary issue.
* B. Are all variables properly defined with meaningful, consistent and clear names?:
* This is good practice but does not address the critical issue of division by zero.
* C. Are there any redundant or unused variables?:
* Identifying unused variables is helpful for code clarity but does not address the primary functional issue in the pseudo code.
References:
The ISTQB CTAL-TTA syllabus and standard code review practices emphasize the importance of ensuring safe arithmetic operations, particularly avoiding division by zero.
Sources:
* ISTQB-CTAL-TTA Syllabus
* General knowledge on code review and arithmetic operations.


NEW QUESTION # 102
Which of the following test categories would best characterize a test designed to confirm that the data backup tapes stored offsite by a bank can be retrieved and loaded within the business process service level agreement?

  • A. Hazard testing
  • B. Security testing
  • C. Reliability testing
  • D. Continuity testing

Answer: D

Explanation:
Testing that focuses on confirming that data backup tapes can be retrieved and loaded within specified service levels is classified as Continuity Testing. This type of testing ensures that business processes can continue after a disruption, such as data loss or system failure.
* Explanation: Continuity testing specifically addresses scenarios where operational capacity must be restored and verified within business continuity planning frameworks, such as disaster recovery processes.


NEW QUESTION # 103
Below is the pseudo-code for the Win program:

The bingo program contains a data flow anomaly. Which data flow anomaly can be found in this program?

  • A. Variable 'A" is not assigned a value before using it.
  • B. The program does not contain any comments.
  • C. Variable 'D" is defined but subsequently not used.
  • D. It is recommended to use a variable instead of the hard-coded print results "Win" and *Loose".

Answer: C

Explanation:
The pseudo-code provided for the "Win" program reads in variables A, B, C, and D. However, only variables A, B, and C are used in the conditional statements to determine if the output will be "Win" or "Loose". Variable 'D' is never used after it is read, which is a classic example of a 'defined but not used' data flow anomaly. This means that while there is an instruction to read a value into variable 'D', there is no subsequent use of this variable in the program's logic or output.


NEW QUESTION # 104
The following user story has been developed:
As a customer of Alpha Airways who has booked a flight
I want to access the flight reservation
So that I can update the booking details
Which BDD scenario written in Gherkin format correctly applies to this user story?
SELECT ONE OPTION

  • A. Given that the logged-on user is a customer of Alpha Airways
    When that user enters their surname correctly
    Then they are able to see all flights currently booked so that they can select which flight they want to update
  • B. Given that a customer has booked a flight with Alpha Airways
    When that customer enters their surname AND enters the flight number for this reservation Then the booking details for that flight are displayed
  • C. Given that a customer has booked a flight with Alpha Airways When that customer enters the correct surname and flight number for this reservation Then the booking details for that flight are displayed ELSE an appropriate error message is presented D Given that a customer has booked a flight with Alpha Airways When that customer enters their surname and the flight number OR enters their customer ID and the flight number for this reservation Then they are taken to the booking details for that flight so that they can update the booking details

Answer: C

Explanation:
The BDD scenario written in Gherkin format that correctly applies to the given user story is:
Given that a customer has booked a flight with Alpha Airways When that customer enters the correct surname and flight number for this reservation Then the booking details for that flight are displayed ELSE an appropriate error message is presented This scenario directly aligns with the user story by specifying the necessary conditions and outcomes for accessing and updating flight reservation details, ensuring that the scenario correctly captures the functionality described in the user story .


NEW QUESTION # 105
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. 70%
  • B. 40%
  • C. 60%
  • D. 80%

Answer: C

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%text{Decision Coverage} = left(frac{6}{10}right) times 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 # 106
......

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