Scenario: You are working on a multi-user system, and you need to implement concurrency control for editing records in a LINQ to SQL application. How would you achieve this?

Concurrency control in LINQ to SQL can be achieved by using a Timestamp (row version) column in the database. This column is automatically updated by the database whenever a record is modified. LINQ to SQL uses this timestamp information to check for concurrency conflicts during updates. Locking is a general concept but not specific to LINQ to SQL. Rollback is a database transaction operation and doesn't directly address concurrency control. Checksum is a method for verifying data integrity but not typically used for concurrency control.