NetApp Certified Support Engineer ONTAP Specialist Free Sample Questions
Description
Covers support and troubleshooting tools, ONTAP cluster administration and data replication issues, hardware and Fibre Channel component troubleshooting, NAS, and performance concepts.
12 free sample questions150 in the full practice test
A storage support engineer is investigating unexpected warning messages on an ONTAP 9 cluster. When running the command 'event log show' with no additional parameters, which event severity levels are displayed by default?
Answer and explanation
Correct answer: B
According to official ONTAP documentation, 'event log show' displays events of severity EMERGENCY, ALERT, and ERROR by default. To view NOTICE, INFORMATIONAL, or DEBUG events, an administrator must explicitly pass the '-severity' parameter.
Q2Question 2
Intermediate
ONTAP OS · ONTAP CLI diagnostic tools
During an unscheduled maintenance call, an engineer needs to immediately generate and transmit a full diagnostic telemetry bundle for node-01 to NetApp Active IQ support without waiting for the scheduled weekly transmission. Which ONTAP CLI command performs this task?
Answer and explanation
Correct answer: D
The command 'system node autosupport invoke' triggers an on-demand AutoSupport message collection. Specifying '-type all' ensures that the complete diagnostic bundle is gathered and transmitted, while '-message' adds custom tracking text such as a support case number.
Q3Question 3
Intermediate
ONTAP OS · Cluster and node administration
A 4-node ONTAP cluster experiences a dual-link failure on the dedicated cluster interconnect network, isolating node-03 and node-04 from node-01 and node-02. Node-01 holds cluster epsilon. How does cluster quorum resolve this partition?
Answer and explanation
Correct answer: B
ONTAP quorum requires a strict majority (>50%) of votes. In an even-node cluster (4 nodes = 4 standard votes), an additional tiebreaker vote (epsilon, valued at 0.5 or 1 extra fractional weighting) is assigned to a single node. The partition containing node-01 with epsilon has majority voting weight (2 standard votes + epsilon), allowing nodes 01 and 02 to remain online and serve data while nodes 03 and 04 lose quorum and halt write operations.
Q4Question 4
Advanced
ONTAP OS · Cluster and node administration
A support specialist observes that the command 'cluster ring show' indicates the 'mgwd' unit is offline or in a master-less state across two nodes in an 8-node cluster, while all other rings (vldb, vifmgr, bcom) show healthy quorum.
flowchart TD
subgraph RDB_Rings [Replicated Database Rings]
VLDB[VLDB: In Quorum / Master Elected]
VIFMGR[VIFMGR: In Quorum / Master Elected]
BCOM[BCOM: In Quorum / Master Elected]
MGWD[MGWD: Offline / Quorum Lost]
end
RDB_Rings --> Effect{Impact on Storage System}
What is the direct operational impact on the ONTAP cluster?
Answer and explanation
Correct answer: D
The mgwd (Management Gateway Daemon) ring manages cluster management transactions, CLI, REST API, and System Manager sessions. Because the volume location database (vldb) and virtual interface manager (vifmgr) rings remain in quorum, data path routing and client I/O continue normally. However, management commands that rely on mgwd synchronization will fail or hang.
Q5Question 5
Intermediate
ONTAP OS · SnapMirror and SnapVault troubleshooting
A scheduled SnapMirror asynchronous update operation repeatedly fails with the status error: 'Transfer failed. (Cannot find common Snapshot copy between source and destination)'. Which troubleshooting workflow is required to restore replication while preserving destination retention history if possible?
Answer and explanation
Correct answer: A
SnapMirror relies on an identical common base Snapshot copy on both source and destination volumes. If the common snapshot was inadvertently deleted on the source (e.g., due to autodelete or manual cleanup), the relationship cannot perform incremental updates. An engineer can identify if any other common snapshot exists or execute 'snapmirror resync' pointing to a valid shared snapshot. If no common Snapshot copy remains anywhere, a full re-initialization is required.
Q6Question 6
Intermediate
ONTAP OS · SnapMirror and SnapVault troubleshooting
When diagnosing a failing SnapMirror relationship across two peered clusters, an engineer executes 'cluster peer health show' and discovers that Ping Status shows 'reachable' but Data Operation Status reports 'unreachable' on node-02. What is the most probable root cause?
Answer and explanation
Correct answer: C
ONTAP cluster peering uses ICMP for basic reachability tests (ping), but data replication and RPC control operations require TCP ports 11104 (intercluster communication) and 11105 (data transfer). If a firewall permits ICMP but blocks these specific TCP ports, Ping Status will succeed while Data Operation Status reports unreachable.
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