CompTIA Server+ SK0-005 Practice Question
A virtual-hosted Dell PowerEdge R650 suddenly lost all external network connectivity. The hypervisor's iDRAC log recorded event code DIAG8171: "PCIe - PCI device in physical Slot 4 is present but not responding." The quad-port 25 GbE NIC installed in that slot is no longer visible to the operating system. The change-control policy allows a 15-minute outage to restore service. Which action is most likely to bring the NIC back online within the approved window?
Flash the latest BIOS, iDRAC, and NIC firmware before the next boot.
Replace the current riser with one that supports full-height PCIe cards.
Disable SR-IOV for the NIC in system BIOS and restart the hypervisor.
Power down the host, firmly reseat the NIC in Slot 4, then reboot the server.