Which setting should be adjusted when integrating with external systems to enhance performance?

• A. Database connection pooling.
• B. Number of concurrent threads.
• C. Network latency configurations.
• D. API request limits.

Answer: (A)

Adjusting the database connection pooling is a key setting to enhance performance when integrating with external systems. Connection pooling allows multiple database connections to be reused rather than opened and closed repeatedly, which can reduce overhead and latency associated with establishing new connections. By optimizing the pool size, you can manage how many connections can be opened simultaneously. This is particularly useful for high-traffic applications where multiple requests need to interact with the database concurrently.

While other options may also have an impact on performance, they address different aspects. Number of concurrent threads can influence how many operations are handled at once, but if database connections are not pooled efficiently, this can lead to bottlenecks. Network latency configurations focus on minimizing delays over the network but do not directly improve the efficiency of database interactions. API request limits control the rate of requests made to an API, which is important, but if the backend database isn't optimized through connection pooling, it won't significantly improve overall system performance.