Which term describes a group of connections an app uses to connect from the app to a server?

• A. Connection Pool
• B. Branch
• C. Bubble Sort
• D. Commit

Answer: (A)

A connection pool is a set of pre-established connections that an application can reuse to talk to a server. Instead of opening and closing a new connection for every request, the app borrows a connection from the pool, uses it, and then returns it to the pool for future use. This approach boosts performance by reducing the overhead of establishing connections and helps manage resources by keeping the number of concurrent connections under control. Pools also handle lifecycle tasks like creating new connections when needed, reusing idle ones, and cleaning up when connections expire.

The other terms don’t fit this description: a branch relates to version control workflows, a sorting method (Bubble Sort) is about ordering items, and a commit is an operation that records changes in version control. None of these describe a group of reusable connections between an app and a server.