CAS CAS Performance Optimization and Troubleshooting

Question 1

Which technique is most effective for reducing application response time when database queries are the primary bottleneck in a CAS-certified application?

Accepted Answer

Implementing query result caching

Answer

Adding more application servers

Answer

Increasing network bandwidth

Answer

Upgrading the operating system

Question 2

In CAS application troubleshooting, what does a high CPU utilization combined with low memory usage typically indicate?

Accepted Answer

Inefficient algorithms or compute-intensive processes

Answer

Memory leak in the application

Answer

Network latency issues

Answer

Insufficient disk I/O capacity

Question 3

Which load testing metric is most critical for establishing performance baselines in a CAS application deployment?

Accepted Answer

Number of concurrent users at peak throughput with acceptable response time

Answer

Total number of HTTP requests per day

Answer

Average session duration

Answer

Peak memory consumption during idle state

Question 4

What is the purpose of profiling an application during CAS performance optimization?

Accepted Answer

To identify code hotspots consuming the most execution time

Answer

To document user stories

Answer

To generate automated test cases

Answer

To configure load balancer rules

Question 5

During CAS application troubleshooting, an error log shows repeated 'connection pool exhausted' messages. What is the most appropriate first step?

Accepted Answer

Increase the maximum connection pool size after analyzing current usage patterns

Answer

Restart the application server immediately

Answer

Switch to a different database engine

Answer

Disable connection pooling entirely

Question 6

Which caching strategy stores precomputed results at the time data is written rather than when it is first requested?

Accepted Answer

Write-through caching

Answer

Lazy loading

Answer

Cache-aside pattern

Answer

Read-through caching