Which of the following applications will be the MOST suitable for testing by Use Cases

1. A. Accuracy and usability of a new Navigation system compared with previous system
2. B. A billing system used to calculate monthly charge based or large number of subscribers parameters
3. C. The ability of an Anti virus package to detect and quarantine a new threat
4. D. Suitability and performance of a Multi media (audio video based) system to a new operating system

Correct Answer: A
A new navigation system compared with a previous system is the most suitable application for testing by use cases, because it involves a high level of interaction between the user and the system, and the expected behavior and outcomes of the system are based on the user’s needs and goals. Use cases can help to specify the functional requirements of the new navigation system, such as the ability to enter a destination, select a route, follow the directions, receive alerts, etc. Use cases can also help to compare the accuracy and usability of the new system with the previous system, by defining the success and failure scenarios, the preconditions and postconditions, and the alternative flows of each use case. Use cases can also help to design and execute test cases that cover the main and exceptional paths of each use case, and to verify the satisfaction of the user’s expectations.
The other options are not the most suitable applications for testing by use cases, because they do not involve a high level of interaction between the user and the system, or the expected behavior and outcomes of the system are not based on the user’s needs and goals. A billing system used to calculate monthly charge based on a large number of subscriber parameters is more suitable for testing by data-driven testing, which is a technique for testing the functionality and performance of a system or component by using a large set of input and output data. The ability of an antivirus package to detect and quarantine a new threat is more suitable for testing by exploratory testing, which is a technique for testing the functionality and security of a system or component by using an informal and flexible approach, based on the tester’s experience and intuition. The suitability and performance of a multimedia (audio video based) system to a new operating system is more suitable for testing by compatibility testing, which is a technique for testing the functionality and performance of a system or component by using different hardware, software, or network environments. References = CTFL 4.0 Syllabus, Section 3.1.1, page 28-29; Section 4.1.1, page 44-45; Section 4.2.1, page 47-48.

You are testing the download process of a mobile phone application.
For which to the following capabilities to the system you need to design a nonfunctional test?

1. A. It was easy to locate, download and install the application
2. B. The application was correctly downloaded
3. C. The application created an installation log file in a given folder
4. D. The application installed only after the user's approval

Correct Answer: A
This question asks for a non-functional aspect of testing the download process of a mobile application. Option A, "It was easy to locate, download and install the application," refers to usability, which is a non-functional quality attribute. Non-functional testing involves testing the system's attributes, such as usability, performance, reliability, etc., rather than specific behaviors or functions. Options B, "The application was correctly downloaded," C, "The application created an installation log file in a given folder," and D, "The application installed only after the user's approval," describe functional aspects, focusing on what the software does rather than how it performs or is experienced by the user.

Why is it important to select a test technique?

1. A. There are usually loo many test cases that may be run on a syste
2. B. Test techniques help reduce the number of tests.
3. C. The only way to test a software application is by using well proven test techniques.
4. D. Selecting the right test technique in a given situation Increases the effectiveness of the test process Oy creating tests with higher chance of finding bugs.
5. E. Test techniques define the number of regression cycles, which in turn impact the project schedule.

Correct Answer: C
Selecting the right test technique is crucial because different techniques are suited to different types of testing and can significantly increase the effectiveness of the testing process by creating tests that are more likely to find defects. While reducing the number of tests (A) and defining the number of regression cycles (D) are considerations in the testing process, they are not the primary reasons for selecting a test technique. The assertion that the only way to test a software application is by using well-proven test techniques (B) is too restrictive and does not acknowledge the adaptability required in testing to suit different contexts and objectives. Therefore, option C is the most comprehensive reason, as it focuses on the effectiveness and efficiency of testing, leading to the creation of high-quality tests that have a higher chance of finding bugs.

Which of the following would be LEAST appropriate as part of an incident report covering the observation of a failure during testing?

1. A. SOL injection into the username entry field allowed a variety of SQL commands to be executed by the application without the appropriate authority.
2. B. The user interface was complicated and confusing and I found It quite difficult to follow the test script.
3. C. The updates made as part of the add new member' function did not reflect the expected change as the name was written into the address field.
4. D. The expected result for the ‘list friends' response time was less than 10 seconds, whereas the average response time obtained was 13 seconds.

Correct Answer: B
An incident report during testing should focus on factual observations of failures or defects in the system, including their impacts and how they deviate from expected results. Options A, C, and D describe specific issues that are directly related to the system's behavior or performance and are suitable for inclusion in an incident report. Option B, which describes the user interface as "complicated and confusing" and relates to the tester's personal difficulty in following the test script, is more subjective and relates to the tester's experience rather than an objective observation of a system failure. Therefore, option B is the least appropriate for an incident report.

Which of the following statements about Experience Based Techniques (EBT) is correct?

1. A. EBT use tests derived from the test engineers' previous experience with similar technologies.
2. B. EBT is based on the ability of the test engineer to implement various testing techniques.
3. C. EBT is done as a second stage of testing, after non-experienced-based testing took place.
4. D. EBT require broad and deep knowledge in testing but not necessarily in the application or technological domain.

Correct Answer: A
Experience based techniques (EBT) are techniques that use the knowledge, intuition and skills of the test engineers to design and execute tests. EBT use tests derived from the test engineers’ previous experience with similar technologies, domains, applications or systems. EBT are not based on the ability of the test engineer to implement various testing techniques, but rather on their personal judgment and creativity. EBT are not done as a second stage of testing, after non-experience-based testing took place, but rather as a complementary or alternative approach to other techniques. EBT require broad and deep knowledge in both testing and the application or technological domain, as this can help the test engineer identify potential risks, scenarios or defects. Verified References: [A Study Guide to the ISTQB® Foundation Level 2018 Syllabus - Springer], Chapter 5, page 48-49.