I'm not able to find any references to the following topics from LSA 7.4 exam blue print. Please help. I would really appreciate a reference to a relevant topic in a Course, PDN link or at least the concepts that will be tested. I also feel, the topics are very generic and broad, and I might miss out on any specific references in PDN link/article before appearing for the Exam.
Evaluate when to use activities, APIs, and functions
Diagnose cause of an issue happening only in one environment
Diagnose cause of an issue after weeks of application running
For Performance topics, I did find a reference in LSA Architecture Course but under following Lesson:
USER EXPERIENCE DESIGN AND PERFORMANCE
Other performance issues that affect the user experience -
"Many application performance issues affect the user experience directly or indirectly. Because the application shares resources across users and background processes, an issue in another part of the application can affect the individual end user in some way.
Sometimes, performance issues show up only after the application has been in production for several weeks and users over a period of days start to experience a performance degradation. Use performance tools and troubleshooting techniques to identify causes of poor performance. For more information, see the following PDN article: Support Play: A methodology for troubleshooting performance."