A Database Activity Monitor (DAM) is specifically designed to identify and stop attack-based commands from executing on a SQL server. Managing Cloud documentation explains that DAM solutions monitor database traffic in real time, inspecting queries and commands for malicious patterns such as SQL injection, privilege escalation, and unauthorized data access attempts.

Unlike traditional firewalls, which primarily filter network traffic, a DAM understands database-specific protocols and SQL command structures. This allows it to detect abnormal or unauthorized queries that may bypass perimeter defenses. When a suspicious command is identified, the DAM can alert administrators, block the execution, or log the activity for forensic analysis.

The other options do not provide this level of database-specific protection. A host-based firewall controls traffic to and from a server but does not analyze SQL commands. A hardware security module focuses on key management and cryptographic operations. A cloud access and security broker enforces security policies between cloud consumers and providers but does not inspect SQL commands directly. Therefore, the database activity monitor is the correct device for stopping attack-based SQL commands.