What is the term for accessing the administrative interface of a network appliance using a separate network from the usual data network?

What is the term for accessing the administrative interface of a network appliance using a separate network from the usual data network?

• A. In-band
• B. Demilitarized Zone (DMZ)
• C. Out-of-band (OOB)
• D. VLAN

Answer: (C)

Out-of-band management refers to reaching and managing a device through a dedicated management network that is separate from the production data network. This separation protects administrative access because even if the data network is under attack or congested, the management interface remains reachable and less exposed to the same threats. In-band management, by contrast, uses the same network as regular data traffic, which can allow attackers or failures on the data network to impact admin access. A DMZ is a separate zone for services exposed to untrusted networks, not specifically about admin access. VLANs are about segmenting networks, but they don’t by themselves guarantee a separate path for management traffic. So the term that fits this scenario is out-of-band management.

Out-of-band management refers to reaching and managing a device through a dedicated management network that is separate from the production data network. This separation protects administrative access because even if the data network is under attack or congested, the management interface remains reachable and less exposed to the same threats. In-band management, by contrast, uses the same network as regular data traffic, which can allow attackers or failures on the data network to impact admin access. A DMZ is a separate zone for services exposed to untrusted networks, not specifically about admin access. VLANs are about segmenting networks, but they don’t by themselves guarantee a separate path for management traffic. So the term that fits this scenario is out-of-band management.