Explain the role of the Connection object in ADO.NET. The Connection object represents a connection to a specific data source (e.g., SQL Server). It is used to establish and manage the connection to the database, execute queries,

Short answer: And close the connection when done. SqlConnection connection = new SqlConnection(connectionString); connection.Open(); nd close the connection when done.

Example code

SqlConnection connection = new SqlConnection(connectionString); connection.Open(); And close the connection when done. Example: SqlConnection connection = new SqlConnection(connectionString); connection.Open(); nd close the connection when done. Example: SqlConnection connection = new SqlConnection(connectionString); connection.Open();

Real-world example (ShopNest)

ShopNest opens a SqlConnection only for the query, then disposes it (using). Connection pooling reuses physical connections automatically.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.