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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q122-Q127):

NEW QUESTION # 122
You are involved in testing a system in the medical domain. Testing needs to comply with the FDA requirements and is rated as being safety critical. A product risk assessment has been performed and various mitigation actions have been identified. Reliability testing is one of the test types that needs to be performed throughout the development lifecycle.
Based on the information provided, which of the following activities would need to be addressed in the test plan?

A. Design and execution of specific tests that evaluate the software's tolerance to faults in terms of handling unexpected input values.
B. Perform a vulnerability scan.
C. Testing whether the installation/de-installation can be completed.
D. Design and execution of test cases for scalability.

Answer: A

Explanation:
In the context of safety-critical systems, particularly in the medical domain, reliability is of utmost importance. For such systems, it is crucial to ensure that the software can handle unexpected input values and continue to operate without failure. This is essential to ensure patient safety and compliance with FDA requirements. Vulnerability scans (option A) are more related to security testing, whereas scalability (option C) and installation/de-installation (option D) are important but not specifically related to the reliability and safety criticality of the system in the medical domain.

NEW QUESTION # 123
The last release of a hotel booking website resulted in poor system performance when hotel searches reached peak volumes. To address these problems in the forthcoming release, changes to the system architecture are to be implemented as follows:
Change 1 - Provision of a single Internet service using multiple servers, rather than a single server, to maximize throughput and minimize response time during peak volumes Change 2 - Prevention of unnecessary database calls for objects that were not immediately needed by the calling applications. Achieved by not automatically creating database connections at the start of processing, instead only just before the data is required.
The system architecture document has been drafted and as Technical Test Analyst you have been invited to participate in its review. Which of the following review checklist items is MOST likely to identify any defects in the proposed system architecture for Change 2?

A. Data replication
B. Caching
C. Connection pooling
D. Lazy instantiation

Answer: D

Explanation:
Analysis:
For Change 2, the goal is to prevent unnecessary database calls by delaying the creation of database connections until they are actually needed. This approach is known as lazy instantiation.
C: Lazy instantiation:
* Lazy instantiation is a design pattern that defers the creation of an object until the point at which it is needed. This can help improve performance by reducing unnecessary resource consumption. In the context of database connections, it ensures that connections are only established when required, thus avoiding unnecessary overhead.
Explanation of Incorrect Options:
* A. Connection pooling:
* Connection pooling involves reusing database connections from a pool rather than creating new ones each time. While this improves efficiency, it does not specifically address the issue of deferring database connections until needed.
* B. Data replication:
* Data replication refers to copying data across multiple databases to ensure consistency and availability. It is not directly related to managing when database connections are established.
* D. Caching:
* Caching involves storing frequently accessed data in memory to improve retrieval times. While beneficial for performance, it does not address the specific issue of delaying database connections.
References:
The ISTQB CTAL-TTA syllabus and standard software architecture practices highlight the importance of design patterns such as lazy instantiation for optimizing resource usage and performance.
Sources:
* ISTQB-CTAL-TTA Syllabus
* General knowledge on software architecture design patterns.

NEW QUESTION # 124
Why should security testing include testing for any cross-site scripting vulnerabilities?

A. Because potentially malicious code could be inserted into the system
B. Because a "man in the middle" could exist
C. Because strings could be entered from the Ul that are too long for the code to handle safely
D. Because encryption codes could be broken

Answer: A

Explanation:
Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users. This type of security breach can lead to unauthorized access to user sessions or sensitive information and manipulate client-side scripts. Testing for XSS vulnerabilities is critical to ensure that any input received from the UI is appropriately sanitized, preventing malicious code from executing within the system. This is a fundamental aspect of security testing to protect the integrity and confidentiality of user data and system functionality.

NEW QUESTION # 125
Which of the following best describes the reason why poorly written code is usually more difficult to maintain than well written code?

A. It tends to have a lot of internal documentation
B. It tends to contain security issues that may require maintenance releases
C. It tends to be difficult for a developer to locate and accurately fix a problem
D. It tends to run more slowly, causing performance issues that may be difficult to fix

Answer: C

Explanation:
Poorly written code often lacks clarity, consistency, and may not follow best practices, making it harder to understand and maintain. When code is not well-structured or logically organized, identifying the source of bugs or understanding how changes might affect system behavior becomes more difficult. This issue is compounded when developers other than the original author need to work on the code, as they may struggle to interpret the intended functionality and interdependencies without clear, readable code.

NEW QUESTION # 126
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 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
C. 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

Answer: B

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 # 127
......

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Tom Bell Tom Bell

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