CAS CAS Performance Optimization and Troubleshooting 2

Question 1

A CAS application experiences intermittent slow responses only during business hours. Which diagnostic approach best isolates the cause?

Accepted Answer

Correlate performance metrics with concurrent user counts and scheduled jobs during those hours

Answer

Correlating metrics with user load and scheduled jobs during peak hours identifies whether the slowdown is load-driven or triggered by a competing process.

Question 2

What is the primary benefit of using asynchronous processing for long-running tasks in a CAS application?

Accepted Answer

Frees the main thread to handle additional requests while background work completes

Answer

Asynchronous processing offloads long-running work so the main thread remains available to accept and process new incoming requests.

Question 3

In CAS application monitoring, which type of alert threshold strategy minimizes false positives caused by brief traffic spikes?

Accepted Answer

Sustained threshold alerts over a rolling time window

Answer

Sustained threshold alerts over a rolling window require the metric to exceed limits for a defined period, filtering out transient spikes.

Question 4

Which database index type is most beneficial for optimizing range queries on timestamp columns in a CAS application?

Accepted Answer

B-tree index

Answer

B-tree indexes maintain sorted order, making them ideal for range queries that retrieve records between two timestamp values.

Question 5

What does the term 'garbage collection pause' refer to in the context of CAS application performance?

Accepted Answer

A stop-the-world pause while the runtime reclaims unused memory objects

Answer

Garbage collection pauses occur when the runtime halts application execution to identify and free unreachable memory objects.

(CAS) Certified Application Specialist Practice Test

(CAS) Certified Application Specialist Practice Test

CAS CAS Performance Optimization and Troubleshooting 2