Which authentication software natively runs within the CLI of Cisco NX-OS devices?

Which element is the main functional component of the architecture that separates the internal fabric and the external network that connects sites when VXLAN EVPN is deployed multisite?

An engineer must deploy a Cisco HyperFlex system at two data centers. For redundancy reasons, the setup must achieve data protection in case of an entire site failure. The data must be available on both sites at all times to keep the recovery time objective to a minimum.
Which Cisco HyperFlex deployment model meets these requirements?

A failure occurs on the network between two BFD and OSPF neighbors. Drag and drop the protocol actions from the left into the correct order on the right.

A network architect proposes a distinct Fibre Channel fabric to be used for a Cisco UCS blade server that hosts critical applications.
Which action should be implemented for the Fibre Channel traffic from the vHBA of this server to pass through the I/O Module in the Cisco UCS chassis to a specified uplink Fibre Channel port?