A network technician needs to establish direct administrative access to a network switch whose network interfaces are completely unreachable due to a network link failure. Which connection method provides dedicated out-of-band management to the command-line interface without relying on active network IP connectivity?
- Connecting a terminal emulator on a laptop directly to the switch console port using a serial console cableCevap
- BEstablishing an SSH session targeting the switch management VLAN IP address on TCP port 23
- CInitiating a Telnet session targeting the default gateway IP address over TCP port 22
- DUsing a Remote Desktop Protocol (RDP) client over port 3389 to connect to the switch IP address
Cevap
Connecting a terminal emulator on a laptop directly to the switch console port using a serial console cable
Connecting directly to the physical console port using a serial console cable provides true out-of-band management. This connection operates independently of the switch's network interfaces, IP configuration, or network link state, allowing administrative CLI access even during a major network outage.
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Out-of-Band Management vs. In-Band Management