Refer to the exhibit. Two types of clients are accessing the front ends and the core database that manages transactions, access control, and atomicity. What is the threat model for the SQL database?

When two distinct client types simultaneously access a shared SQL database responsible for transactions, access control, and atomicity, an attacker can overwhelm the database with excessive requests or resource-intensive queries, causing a DoS condition that disrupts all transaction processing and access control enforcement. The database's role as a single centralized resource makes resource exhaustion the primary threat in this multi-client topology.

Reading or changing data requires overcoming the access control layer enforced by the database, which is not the primary threat exposed by the described multi-client topology.

Transferring data to an external server is an exfiltration threat that depends on compromise of client applications or network controls, not a direct SQL database threat model.

Modifying access logs is a post-compromise action targeting audit integrity, not the primary threat model for a transactional SQL database serving multiple client types.