NS0-157 Question #280: Real Exam Question with Answer & Explanation

The correct answer is C: The intercluster interface on the source cluster must be able to communicate with the intercluster. Establishing an inter-cluster relationship requires that the intercluster LIF on the source cluster can communicate with the intercluster LIF on the destination cluster.

Data Protection and High Availability

Question

What communication link is necessary in order to establish an inter-cluster relationship?

Options

AThe cluster interface on each node must be able to communicate with the intercluster interface on
BThe cluster interface on the source cluster must be able to communicate with the cluster interface
CThe intercluster interface on the source cluster must be able to communicate with the intercluster
DThe intercluster interface on the source cluster must be able to communicate with the cluster

Explanation

Establishing an inter-cluster relationship requires that the intercluster LIF on the source cluster can communicate with the intercluster LIF on the destination cluster.

Common mistakes.

A. The cluster interface is used for intra-cluster node-to-node communication within a single cluster and does not need to communicate with any interface on a remote cluster.
B. Cluster interfaces serve internal node communication within one cluster and are not the correct interfaces for establishing inter-cluster peering with a remote cluster.
D. The intercluster LIF on the source communicating with the cluster interface (rather than the intercluster LIF) on the destination is incorrect - both sides must use their respective dedicated intercluster LIFs.

Concept tested. Intercluster LIF communication for cluster peering

Reference. https://docs.netapp.com/us-en/ontap/peering/prerequisites-cluster-peering-reference.html

Topics

#intercluster LIF#cluster peering#inter-cluster relationship#network communication

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