Implementation CT-PT Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A performance test engineer has written a script that logs into a web application, performs a search, and logs out. When running the script with a single virtual user, the script completes successfully. However, when running with 100 virtual users, the script fails on the search step for some users. The engineer needs to verify the script's correctness before proceeding with the full load test. Which step should the engineer take first?

   • ARun the script in debug mode with a small number of virtual users (e.g., 5) and inspect the server responses for the search request.
   • BAdd more assertions to the login step to ensure it succeeds.
   • CIncrease the think time in the script to reduce the load on the server.
   • DRemove the logout step from the script to simplify it.
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2. 7expert · hard

   A performance test engineer has developed a script for a web application that uses a session ID in the URL. The script works correctly when run with a single virtual user, but when run with multiple virtual users, some requests fail with a 'session not found' error. The engineer suspects that the session ID is being shared among virtual users. Which debugging step should the engineer take to confirm this?

   • AIncrease the think time in the script to reduce the chance of session conflicts.
   • BRun the script with two virtual users and enable logging of the session ID variable to see if it is the same for both users.
   • CAdd an assertion to verify that the session ID is present in the response.
   • DRemove the session ID from the URL and rely on cookies instead.
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4. 8application · medium

   A performance test engineer is validating a script for a REST API that returns a JSON response. The script sends a request and needs to verify that the response contains a field named 'status' with the value 'success'. The engineer also wants the script to fail gracefully if the response is not as expected. Which approach should the engineer use?

   • AAdd a think time after the request to allow the server to process the response.
   • BAdd a correlation step to extract the 'status' field and then use it in a subsequent request.
   • CAdd a parameterization step to replace the 'status' field with a variable.
   • DAdd an assertion that checks the JSON response for the 'status' field and its value, and configure the script to log an error and continue to the next iteration.
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5. 9application · medium

   A performance test script for a customer registration form uses a fixed email address for all virtual users. During the test, many registrations fail because the email address is already in use. The engineer needs to ensure each virtual user uses a unique email address. Which technique should the engineer apply?

   • AAdd an assertion to verify that the registration response contains a success message.
   • BIncrease the think time between registration attempts.
   • CCorrelate the email address from the server response of a previous request.
   • DParameterize the email address using a data file with a list of unique email addresses.
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6. 10application · medium

   A performance test script for a booking system captures a session token from the login response and uses it in subsequent requests. The script works in single-user mode but fails under load with many virtual users. The error log shows that some requests return a 401 Unauthorized status. What is the most likely cause and the appropriate fix?

   • AThe session token is not being correlated correctly; the script should extract the token from the login response and store it in a variable that is unique per virtual user.
   • BThe server is rate-limiting the requests; the fix is to increase the think time between requests.
   • CThe script is missing an assertion on the login response; adding a status code assertion will fix the 401 errors.
   • DThe script's termination block is not logging out properly; the fix is to add a logout request at the end of the script.
   Reveal Solution Discussion Select an answer first