CCNP CCNP Data Center 1

Question 1

What is the default VTP mode on a Cisco Nexus switch?

Accepted Answer

Transparent

Answer

Cisco Nexus switches default to VTP Transparent mode, which means they do not participate in VTP domain synchronization.

Question 2

What is the primary purpose of a vPC (Virtual Port Channel) in a Cisco data center?

Accepted Answer

Allow a device to connect to two Nexus switches as a single logical port channel

Answer

vPC allows a downstream device to connect to two Nexus switches simultaneously using a single logical port channel, eliminating blocked ports.

Question 3

Which link in a vPC setup carries control plane traffic between the two vPC peers?

Accepted Answer

vPC peer keepalive link

Answer

The vPC peer keepalive link carries heartbeat messages to detect if the peer switch is alive, while the peer link carries data and control plane traffic.

Question 4

What is the role of the vPC peer link in a Cisco Nexus vPC pair?

Accepted Answer

Carries BPDUs, multicast traffic, and orphan port traffic between peers

Answer

The vPC peer link carries BPDUs, multicast, and traffic destined for orphan ports, acting as the inter-switch link for control and some data plane functions.

Question 5

Which command is used to verify the vPC status and role on a Cisco Nexus switch?

Accepted Answer

show vpc

Answer

The 'show vpc' command displays the vPC domain ID, role (primary/secondary), peer link status, and per-vPC consistency status.

CCNP - Cisco Certified Network Professional Practice Test

CCNP - Cisco Certified Network Professional Practice Test

CCNP CCNP Data Center 1