In ODBC terminology, is a “data source” (DSN) the configuration that identifies the target database and the DBMS/driver that will process requests?

Introduction / Context:
An ODBC “data source name” (DSN) provides connection information so an application can connect to a database through a specific ODBC driver. This item checks whether you know that a data source identifies both the database and the DBMS/driver that handles the connection.

Given Data / Assumptions:

• ODBC requires a driver suitable for the intended DBMS.
• A DSN stores information such as driver name, server, database, port, and authentication method.
• Applications call SQLConnect/SQLDriverConnect referencing the DSN.

Concept / Approach:
The DSN acts as a profile that tells the ODBC Driver Manager which driver to load and how to reach the database. Whether it is a User DSN, System DSN, or File DSN, the purpose is the same—identify the database and the DBMS driver (or driver manager) that will process the calls. Therefore, the statement is correct.

Step-by-Step Solution:

Verification / Alternative check:
Inspect ODBC Administrator (Windows) or odbc.ini (UnixODBC): you will see DSN entries mapping to specific drivers and target databases.

Why Other Options Are Wrong:

• User vs. System vs. File DSN only affects scope and storage, not meaning.
• Vendor application does not redefine DSN semantics.

Common Pitfalls:
Confusing a DSN with a connection string; assuming a DSN alone contains credentials (it may or may not; prompting is common).

Final Answer:
Correct