NetApp NS0-015 Certification Exam Sample Questions and Answers

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NetApp NS0-015 (NCIE-MetroCluster) Sample Questions:

01. An engineer runs the enable/configure step on a new four-node MetroCluster and it fails. Investigation shows the two clusters are peered and reachable, but one node's root aggregate is a single-plex unmirrored aggregate.
What is the most likely reason the configure step failed, and the correct remedy?
a) Cluster peering must be removed before the configure step; unpeer the clusters and retry
b) The configure step needs mirrored root aggregates on all nodes; mirror the root and re-run
c) The failure is due to the Mediator not yet performing a switchover; trigger a switchover first
d) The step failed because data SVMs were not yet created at the partner site; create the SVMs on both clusters first, then re-run the configure step
 
02. A customer is planning a new synchronous MetroCluster deployment and asks what characteristic of the replication makes the maximum inter-site distance a hard design constraint rather than a tunable preference.
Which property of synchronous mirroring drives the distance limit?
a) The witness or Mediator must be physically equidistant from both sites, and that fixed geometry places a hard cap on the total span between the two campuses.
b) Licensing meters replicated capacity per kilometre, so longer distances become prohibitively expensive to run.
c) Each write must be acknowledged at both sites before the host write completes, so round-trip latency bounds the separation.
d) Asynchronous batching of writes degrades as distance grows, eventually breaking the mirror relationship.
 
03. During pre-sales planning for a two-node-per-site MetroCluster IP design, the account team must confirm the customer has the right personnel and validation approach before ordering hardware.
Which item belongs in the readiness inventory for the implementation team?
a) An engineer with NCDA-level ONTAP skills, plus the vendor configuration checklist and validation tooling to verify the design.
b) Documented proof that both sites already run an identical third-party backup software suite under matching licences.
c) A third fully populated production site hosting a live synchronous copy of every data volume in the environment.
d) A signed guarantee of zero data loss under any conceivable failure, including a rolling regional disaster that simultaneously destroys both campuses and the interconnect between them.
 
04. A proposed two-site MetroCluster design promises fully automated, unattended switchover on a total site outage. Reviewing the topology, you notice the design has only the two storage sites and no independent third location participating in the cluster's decision-making.
What is the most important gap to flag, and why does it matter for the automated RTO goal?
a) The two controllers lack identical chassis serial numbers, and this hardware mismatch alone blocks any automated switchover between the sites.
b) The design omits an asynchronous SnapVault copy at an independent third site, so an automated switchover would silently lose recently committed transactions during the outage window.
c) There is no third-site witness/Mediator; without an independent tie-breaker the survivor cannot tell a peer failure from an interconnect partition, so automation is unsafe.
d) There is no gap at all; two sites sharing a synchronous mirror can always arbitrate and automate switchover safely on their own without help.
 
05. An engineer must confirm that all prerequisites are in place before running the enable/configure step of a new MetroCluster.
Which conditions must be satisfied before the configure step will succeed?
(Choose two.)
a) cluster peering between the two clusters is established and healthy
b) All data volumes are already populated with production data before enablement
c) The Tiebreaker software has completed at least one automatic switchover
d) Every SnapMirror relationship to a remote cluster is quiesced beforehand
e) Mirrored root aggregates exist on the nodes
 
06. During implementation of an IP MetroCluster, an engineer is assigning disks so that each node owns storage from the correct pools for its mirrored aggregates.
How are the two plexes of a mirrored aggregate sourced from the disk pools?
a) Both plexes are built exclusively from local pool0 disks at the same site
b) Plex membership is chosen at random from whichever pool has free disks available
c) One plex uses local pool0 disks and the mirror plex uses remote pool1 disks
d) Both plexes are built exclusively from the partner site's remote pool1 disks
 
07. After a planned switchover, a newly created volume and a new export policy that were added at the failed site just before the event are present and serviceable at the surviving site, even though no manual reconfiguration was performed there.
Which combination of MetroCluster mechanisms explains this outcome?
a) SyncMirror alone replicated both the data and the configuration objects to the remote site
b) SnapMirror asynchronously copied both the cluster and SVM configuration objects and the underlying data to the partner just before the switchover, then replayed them at the surviving site
c) Local Snapshot copies at the surviving site recreated the new volume and its export policy
d) The CRS had replicated the new volume and export-policy definitions to the partner, and SyncMirror had mirrored the underlying data to the remote plex
 
08. Two campuses are linked only by a routed Ethernet network. The customer has no dark fibre and no FC switching between sites, and their networking team is standardised on IP. They still require synchronous protection.
Which design direction should the assessment recommend?
a) Abandon synchronous protection entirely and fall back to asynchronous SnapMirror replication only.
b) MetroCluster IP, carrying cluster and replication traffic over the Ethernet/IP network the customer already runs.
c) Recommend a single-site cluster because IP transport cannot support any MetroCluster variant.
d) MetroCluster FC, purchasing new back-end FC switches and FibreBridge units and provisioning dark fibre to override the customer's IP preference.
 
09. An administrator is validating expectations for a mirrored aggregate protected by SyncMirror in a MetroCluster configuration.
Which two statements about the plex-and-pool relationship are correct?
(Choose two.)
a) A mirrored aggregate stripes a single plex across both pool0 and pool1 to add their capacity together
b) Writes commit to both plexes synchronously, so either plex alone is a complete, current copy
c) The remote pool1 plex is refreshed asynchronously on a schedule to reduce inter-site traffic
d) Each plex is built from disks in a single pool — the local plex from pool0 and the remote plex from pool1
e) Plexes hold only configuration metadata, while the actual user data lives in the CRS configuration replica
 
10. A customer is choosing between a MetroCluster FC and a MetroCluster IP topology and asks how the two differ in how the controllers reach the remote storage.
Which description correctly contrasts the back-end connectivity of the two architectures?
a) MetroCluster FC carries storage traffic over Ethernet RDMA, and MetroCluster IP adds FibreBridge for interconnect
b) MetroCluster FC uses FC-VI and a back-end FC fabric with FibreBridge for storage; MetroCluster IP uses Ethernet IP switches with RDMA instead
c) Both variants require a back-end FC fabric with FibreBridge to reach the shelves; they differ only in the front-end client protocol they present to hosts
d) MetroCluster IP uses FibreBridge and back-end FC switches, while MetroCluster FC uses Ethernet RDMA

Solutions:

Question: 01

Answer: b

Question: 02

Answer: c

Question: 03

Answer: a

Question: 04

Answer: c

Question: 05

Answer: a, e

Question: 06

Answer: c

Question: 07

Answer: d

Question: 08

Answer: b

Question: 09

Answer: b, d

Question: 10

Answer: b

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