A storage appliance has lost all network access. Which of the following network access methods could a storage engineer use to investigate and correct the issue?

HTTP is an unencrypted web protocol that depends on full network connectivity and does not provide the secure, command-level access needed to diagnose and repair a network failure on a storage appliance.

A console port is a direct physical serial interface, not a network access method - it requires the engineer to be physically present at the device and cannot be used remotely over any network.

RDP (Remote Desktop Protocol) is a Windows-specific graphical remote access protocol and is not supported by storage appliance operating environments for administrative management.

SSH (Secure Shell) is the standard encrypted protocol for remote command-line administration of storage appliances and network devices. Many enterprise storage systems include a dedicated out-of-band management port or management VLAN that remains accessible even when the primary data network goes down. Using SSH over this management path allows the engineer to log in, diagnose, and correct the network configuration without requiring physical presence at the device.