Coexistence and Operational Profiles CTAL-TTA Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A test team has developed an operational profile for a content management system. The profile shows that 'create document' occurs 50% of the time, 'edit document' 30%, and 'publish document' 20%. The team has limited time for performance testing and must choose which scenarios to include. What is the best way to use the operational profile?

   • ATest all three operations with an equal number of virtual users to ensure balanced coverage.
   • BTest only 'publish document' because it is the most critical operation for the business.
   • CTest only 'create document' because it has the highest probability and therefore the greatest impact on performance.
   • DInclude all three operations in the performance test, but weight the number of virtual users or transactions according to the profile probabilities.
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2. 12application · medium

   A team is about to start reliability testing for a new version of a mobile app. They have collected usage data from a beta release and from analytics of the previous version. The data shows that the most frequent operation is 'login', followed by 'view feed', and then 'post message'. How should the team use this information to structure their reliability testing?

   • ACreate an operational profile that assigns probabilities to each operation based on the collected data, and then run test cases in proportion to those probabilities.
   • BRun the same number of test cases for each operation to ensure all features are tested equally.
   • CFocus all testing on the 'login' operation because it is the most frequent and therefore the most critical.
   • DUse the data only to create a performance test that simulates the peak load of the most frequent operation.
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4. 13expert · hard

   A company is deploying a new version of its inventory management software to a shared server that also runs a legacy accounting system. The coexistence test team has identified that both systems use the same database and that the new software's installation process may overwrite a shared library used by the accounting system. The team has limited time and must decide whether to test the installation conflict or the runtime database conflict first. The operational profile for the new software shows that the database operations occur 90% of the time, while installation is a one-time event. Which should the team test first, and why?

   • ATest both simultaneously by installing the new software and immediately running database operations.
   • BTest the installation conflict first because it could prevent the accounting system from starting at all.
   • CTest the runtime database conflict first because it affects the most frequent operations and could cause data corruption or loss.
   • DSkip coexistence testing and rely on the vendor's compatibility statement.
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5. 14application · medium

   A team has constructed an operational profile for an e-commerce site. The profile shows that 'view product' occurs 80% of the time, 'add to cart' 15%, and 'checkout' 5%. The team has limited time for performance testing and must decide how to allocate test effort. Which strategy best aligns with the operational profile?

   • ARun an equal number of tests for each operation to ensure all functions are covered equally.
   • BTest 'checkout' exclusively because it is the most complex and failure-prone operation, even though it has a low probability.
   • CAllocate test time proportionally to the profile probabilities, so 'view product' gets the most attention, but also include targeted tests for 'checkout' because it is business-critical.
   • DTest only 'view product' because it has the highest probability and therefore the greatest impact on user experience.
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6. 15application · medium

   A team is preparing for reliability testing of a customer-facing web application. They have access to production logs showing that 70% of user sessions involve browsing product pages, 20% involve searching, and 10% involve checkout. The team wants to use this data to guide their testing. What is the most appropriate use of this information?

   • AConstruct an operational profile that assigns probabilities to each operation based on the observed frequencies, then use it to prioritize test cases for the most frequently used operations.
   • BRun all test cases with equal frequency to ensure comprehensive coverage of all features.
   • CUse the data to create a performance test that simulates 100% of users performing checkout to stress the system to its limits.
   • DFocus exclusively on the checkout process because it is the most critical business function, regardless of its frequency.
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