CREST Practitioner Security Analyst (CPSA) Practice

Which service utilizes Port 161 for network management tasks?

1. Simple Credential Management Protocol

2. Simple Network Management Protocol

3. Simple Content Management Protocol

4. System Network Management Protocol

The correct answer is: Simple Network Management Protocol

The Simple Network Management Protocol (SNMP) is designed for managing devices on IP networks and uses Port 161 for its communication. This protocol operates under a client-server model where a network management system (client) communicates with network devices (servers). SNMP allows for monitoring and managing network hardware, configurations, performance metrics, and fault reporting, facilitating effective network management and ensuring that systems are operating optimally. The other options, while they reference various management or protocol concepts, do not specifically relate to the widely recognized use of Port 161. For instance, Simple Credential Management Protocol and Simple Content Management Protocol are not established protocols within network management, and System Network Management Protocol does not align with the known standards surrounding SNMP. This context underlines why SNMP is associated directly with Port 161.