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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q58-Q63):

NEW QUESTION # 58
Your Agile team is developing a web-based system that will allow users to browse and buy online from a store's shopping catalogue. Continuous Integration has been implemented and technically it is working well, running several times per day, but each run is taking almost as much time as the team is prepared to allow. It is clear that after a few more iterations, as the number of tests needed grows with the product, it will be taking too much time.
Which of the four options contains a pair of solutions that will BOTH help to solve this problem?
a.Only include unit and component integration tests in the automated Cl runs.
b.Schedule low priority tests to be the first ones executed in each run, in order to provide rapid build verification.
c.Reduce the extent to which the automated tests go through the user interface, using technical interfaces instead.
d.Reduce the number of Cl cycles run each day.
e.Select a subset of automated tests for the daytime Cl runs, and run as many of the other tests as possible in an overnight cycle.
SELECT ONE OPTION

A. c and e
B. b and d
C. a and c
D. d and e

Answer: A

Explanation:
The correct option for addressing the issue of increasing test run times in a Continuous Integration (CI) environment is option C: reducing the extent to which automated tests go through the user interface, and selecting a subset of automated tests for the daytime CI runs while running many of the other tests in an overnight cycle.
* Reducing User Interface Tests: By reducing the extent of tests that go through the user interface (UI) and using technical interfaces instead, you can significantly decrease the time each test takes. UI tests are generally slower due to rendering and user interaction simulations.
* Optimizing Test Scheduling: By selecting only a subset of tests for daytime CI runs and scheduling extensive testing for overnight runs, the team can manage the test load better without compromising the frequency of integration, thus ensuring continuous testing does not become a bottleneck.
This dual approach effectively manages both the execution time of individual tests and the overall test process across the development cycle, maintaining the agility of the CI process without sacrificing the breadth of testing necessary for quality assurance .

NEW QUESTION # 59
You are defining the test approach for an Agile project developing a system to control traffic lights at busy road junctions. The system will use sensors to measure traffic density and flow rates, optimizing traffic flow.
While safety-critical, a risk assessment has deemed the project's risk level as low due to the team's expertise.
Which option below represents the BEST test approach for this project?
Key to symbols:
* + (highly recommended)
* (recommended)
* o (neutral/optional)
* * (not recommended)
* - (not to be used)

SELECT ONE OPTION

A. 0
B. 1
C. 2
D. 3

Answer: B

Explanation:
In the scenario described, the project involves developing a system to control traffic lights at busy road junctions, focusing on safety-critical operations but deemed low-risk due to the team's high level of expertise.
Option B (4), characterized by (recommended) for Test Automation and + (highly recommended) for Exploratory Testing (manual) with (recommended) for Black-box Testing, is the most fitting for this project because:
* Test Automation (Recommended): For a system managing traffic lights, automated tests can efficiently handle repetitive testing of scenarios involving various traffic densities and flow rates, ensuring consistent and thorough checking of system responses under controlled conditions.
* Exploratory Testing (Highly Recommended): Given the critical nature of the system, exploratory testing allows testers to creatively challenge the system beyond pre-defined test cases, identifying potential real-world issues that might not be evident in scripted testing. This is particularly vital in safety-critical systems where unexpected behavior could have severe consequences.
* Black-box Testing (Recommended): Black-box testing will ensure that the system meets its external specifications and behaves correctly as perceived from the outside, without the testers needing to know the internal workings. This is essential for verifying that the system's functionality aligns with its intended use in real-world traffic scenarios.
This approach, combining thorough automation with exploratory insights and specification-based validation, supports the project's safety-critical nature while leveraging the team's expertise to manage the identified low risk .

NEW QUESTION # 60
Which of the following statements is TRUE regarding tools that support component testing and the build process?

A. Component testing and build automation tools are only used by developers.
B. Component testing tools are the basis for a continuous integration environment.
C. Component testing tools are typically specific to the programming language and may be used to automate unit testing.
D. Build automations tools facilitate manual testing at a low level by allowing the change of variables values during test execution.

Answer: C

Explanation:
Component testing tools, which are often specific to a programming language, are used to automate unit tests (answer C). These tools help to validate the functionality of individual components or units of code in isolation from the rest of the application. While build automation tools are indeed used by developers and are related to continuous integration (answers A and D), and they can facilitate testing at various levels (answer B), component testing tools' primary purpose is to support the testing of individual components, often through automated unit tests, which can be specific to the language in which the components are written.

NEW QUESTION # 61
Consider the pseudo code provided below:

Which of the following options provides a set of test cases that achieves 100% decision coverage for this code fragment, with the minimum number of test cases?
Assume that in the options, each of the three numbers in parenthesis represent the inputs for a test case, where the first number represents variable "a", the second number represents variable "b", and the third number represents variable "c".

A. (5. 4, 0); (3, 2, 5); (4, 5, 0)
B. (5. 3, 2); (6, 4, 2); (5, 4, 0)
C. (4,5. 0); {5, 4, 5)
D. (5. 3,2)

Answer: B

Explanation:
To achieve 100% decision coverage with the minimum number of test cases, we need to ensure that every branch of the decision is taken at least once. For the code provided:
* The first condition (a>b) is true for the first two test cases and false for the third.
* The second condition (b>c) is true for the first test case, false for the second, and does not matter for the third since the first condition is false.
Therefore, with these three test cases, we cover all possible outcomes of the decision, ensuring 100% decision coverage.

NEW QUESTION # 62
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 # 63
......

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