What is the purpose of the management VLAN?

• A. Telnet, SNMP, and Syslog
• B. DHCP relay
• C. Video streaming
• D. User authentication

Answer: (C)

A management VLAN is created to carry only the devices’ management traffic—the communications used to configure, monitor, and maintain network devices. Keeping protocols like SSH/Telnet for access, SNMP for monitoring, and Syslog for logs on this separate network allows administrators to manage devices securely and reliably, even if user or data traffic is heavy or compromised on other parts of the network. It also makes applying access controls and isolating management from regular user traffic easier, which enhances security and reduces the risk of management channels being overwhelmed.

Video streaming sits in the data plane, not the management plane, so it belongs on the user or data VLANs. DHCP relay is a service that can exist on various segments but isn’t the purpose of a dedicated management VLAN. User authentication may involve management paths, but the VLAN’s main role is to segregate management traffic from regular data traffic.