Given a scenario in which a host on a Fibre Channel SAN suddenly loses access to multiple SAN storage volumes, an administrator should FIRST investigate which of the following? (Select TWO).

A cable connection failure would physically disrupt the optical or copper link between the host's HBA and the Fibre Channel switch, immediately preventing access to all storage volumes reachable through that link.

Fibre Channel does not natively use VLANs for segmentation; VLANs are an Ethernet technology and are not relevant to a traditional Fibre Channel SAN.

A GBIC/SFP (Gigabit Interface Converter/Small Form-Factor Pluggable) transceiver failure on the host's HBA or the connected Fibre Channel switch port would prevent the optical signal transmission and reception, thereby cutting off all communication to the SAN.

A NIC (Network Interface Card) is used for Ethernet-based IP networking, not for traditional Fibre Channel SAN connectivity which uses a Host Bus Adapter (HBA).

A Name Server failure might impact new device logins or discovery but is less likely to cause a sudden, complete loss of access to existing, connected volumes than a physical connectivity issue.