What is a feature of NFS?

An engineer installed a new Nexus switch with the mgm0interface in vrf management. Connectivity to the rest of the network needs to be tested from the guest shell of the NX-OS. Which command tests connectivity from the shell of the NX-OS?
Which two statements about the process of performing an EPLD upgrade on a Cisco MDS 9000 series Switch are true? (Choose two.)

Due to a major version change, an engineer must perform a software upgrade on a Cisco Nexus Series switch.
Which two technologies can be implemented to reduce disruptions to the network during the upgrade?
(Choose two.)
A new employee must be granted access to add VLANs into an existing Cisco UCS Manager and configure NTP synchronization with date and time zone settings. Which two privileges must be granted to the employee to complete the task? (Choose two.)