Network_Appliance
NS0-157 · Question #65
NS0-157 Question #65: Real Exam Question with Answer & Explanation
The correct answer is C: They have no cluster LIFs. Single-node clusters run Cluster-Mode on a single node and do not require cluster LIFs because there is no inter-node cluster network traffic to manage.
ONTAP Cluster Fundamentals
Question
Which of these correctly describes single-node clusters?
Options
- AThey support storage failover
- BThey support nondistruptive upgrade
- CThey have no cluster LIFs
- DThey are identical to one-node clusters
Explanation
Single-node clusters run Cluster-Mode on a single node and do not require cluster LIFs because there is no inter-node cluster network traffic to manage.
Common mistakes.
- A. Storage failover requires an HA pair of at least two nodes so one partner can take over the other's storage, which a single-node cluster cannot provide.
- B. Non-disruptive upgrades in a cluster rely on rolling takeover and giveback across HA pairs, which is impossible with only one node.
- D. A single-node cluster is a Cluster-Mode deployment and differs architecturally from a standalone 7-Mode one-node system in configuration, management, and supported features.
Concept tested. Single-node cluster architecture and LIF requirements
Reference. https://docs.netapp.com/us-en/ontap/networking/create_lifs.html
Topics
#single-node cluster#cluster LIFs#storage failover#cluster architecture
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