CTA Performance Optimization & Best Practices Flashcards
6 cards from real CTA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CTA Performance Optimization & Best Practices flashcards as text
What is the recommended TestStand practice for handling a step that must clean up hardware regardless of whether previous steps passed or failed?
Answer: Place cleanup steps in a 'Cleanup' step group set to always execute
A Cleanup step group configured to run regardless of prior step outcomes ensures hardware is safely released even when earlier steps have failed.
A CTA architect needs to version-control TestStand type palette files. Which file format consideration is important for diff readability?
Answer: Text-based .ini format is preferred because diffs are human-readable
TestStand type palette files saved in text-based .ini format produce human-readable diffs in source control, making change review practical.
Which TestStand feature allows an architect to define reusable pass/fail logic (e.g., limit checks) once and apply it consistently across hundreds of steps?
Answer: Custom step type with built-in limit comparison logic
A custom step type encapsulates limit comparison logic and limit parameters, ensuring consistent application across every instance of that step type throughout all sequences.
What is the effect on TestStand performance of setting 'Statement Timeout' to a very short value in the Database Options result plugin?
Answer: Increased failures if database writes take longer than the timeout, causing data loss
An overly short statement timeout causes database operations that exceed the limit to be aborted and reported as errors, leading to missing result data.
A CTA architect is reviewing a sequence and notices deeply nested sub-sequence calls (6+ levels). What is the primary performance and maintainability risk?
Answer: Deep nesting increases call overhead and makes debugging and maintenance significantly harder
Each level of sub-sequence nesting adds call overhead and makes stack traces harder to follow, increasing both execution time and maintenance complexity.
Which TestStand practice ensures that a newly developed sequence file is validated against the target station's hardware configuration before production deployment?
Answer: Perform a hardware-in-the-loop (HIL) validation on a representative production station before releasing
Hardware-in-the-loop validation on a representative production station catches hardware-specific issues that simulation and off-target testing cannot reveal.