An analyst discovers a suspicious item in the SQL server logs.

The string "UserId = 10 OR 1=1;" is a classic SQL injection payload that exploits improper input validation to manipulate the database query logic, often granting unauthorized access or exposing data.

The other options are command-line or DNS-related and unrelated to SQL injection.

SQL injection detection is critical in application security【6:Chapter 6†CompTIA Security+ Study Guide】.