Latest [Aug 31, 2026] Network Appliance NS0-094 Real Exam Dumps PDF
NS0-094 Practice Test Questions Updated 142 Questions
NEW QUESTION # 49
While troubleshooting a RAID group, you notice that one disk shows consistently higher utilization than the other disks.
Refer to the following output:
What action do you take to correct this issue?
- A. Fail the drive.
- B. Perform a takeover.
- C. Increase the aggregate.
- D. Apply a LIF service policy.
Answer: A
Explanation:
A disk that shows consistently abnormal utilization compared with the rest of the RAID group indicates a likely failing or problematic drive. Failing the drive forces ONTAP to reconstruct the affected data onto a healthy spare, removing the performance problem from the RAID group.
NEW QUESTION # 50
A 4-node NetApp ONTAP cluster sent an AutoSupport message for a single power supply failure in the cluster. The alert shows a failure for both node-1 and node-4. Why are two different nodes affected by the failure?
- A. There is a failure in cluster interconnect switch-1.
- B. Both node-1 and node-4 are in the same chassis.
- C. There is a failover of node-3 to node-4.
- D. There is a failover of node-2 to node-1.
Answer: B
Explanation:
A single power supply is shared by the controllers installed in the same chassis. Therefore, one failed power supply can generate alerts for both nodes that reside in that chassis.
NEW QUESTION # 51
You must replace a disk shelf due to a hardware fault on a NetApp ONTAP cluster. You replace the shelf with a new shelf that originally belonged to another cluster, and some disks in the new shelf are not showing up as spares. When you run the disk show command, you notice that the new disks have "foreign" ownership. When you attempt to assign the disks, the attempt fails with an ownership conflict error. Which procedure resolves the disk ownership issue and makes the new disks available as spares?
- A. Force disk assignment to the node using the disk assign -disk <disk> -owner <node> force command.
- B. Disable auto-assign, use the disk removeowner command on the foreign disks, and then re- enable auto-assign.
- C. Use a disk wipe operation on the foreign disks, then attempt to assign the disks again.
- D. Zero the disk on the old system before moving it to the new system.
Answer: C
Explanation:
Disks marked with foreign ownership metadata from another cluster can cause ownership conflicts during assignment. Performing a disk wipe clears the old ownership and aggregate metadata, allowing the disks to be reassigned and used as spares in the new cluster.
NEW QUESTION # 52
Which RAID type provides protection against three disk failures?
- A. RAID DP
- B. RAID 5
- C. RAID 4
- D. RAID-TEC
Answer: D
Explanation:
RAID-TEC Overview:
RAID-TEC (Triple Erasure Coding) is a NetApp RAID technology designed to protect against up to three simultaneous disk failures.
It is ideal for systems with high-density disks or workloads requiring extreme fault tolerance.
Why RAID-TEC Is Correct:
RAID-TEC uses triple-parity protection, which provides redundancy against three disk failures, making it more resilient than RAID-DP or RAID 5.
RAID-DP only protects against two disk failures, while RAID 4 and RAID 5 protect against a single failure.
NEW QUESTION # 53
Which two statements regarding drive 1.2.3.L1 are true? (Choose two.)
- A. The drive is in shelf 2.
- B. The drive is in shelf 1.
- C. The drive is in bay 3.
- D. The drive is in bay 2.
Answer: A,C
Explanation:
The identifier 1.2.3.L1 follows the NetApp disk naming convention, which specifies the location of the drive in the system. Here is the breakdown of the identifier:
1: This indicates the stack ID or loop ID. It represents the stack number in the disk shelf configuration.
2: This indicates the shelf ID. In this case, the drive is located in shelf 2.
3: This indicates the bay ID or slot number within the shelf. The drive is in bay 3.
L1: This represents the logical port or logical disk identifier.
How to Interpret Disk Identifier 1.2.3.L1:
The shelf ID is 2, so the drive is in shelf 2 (A is correct). The bay ID is 3, so the drive is in bay 3 (B is correct).
NEW QUESTION # 54
A SAS connection is reporting a single PHY down. What are the two most likely causes? (Choose two.)
- A. improperly seated cable
- B. an offline shelf in the stack
- C. defective cable
- D. outdated I/O module (IOM) firmware
Answer: A,C
Explanation:
Understanding a Single PHY Down Issue:
In SAS environments, a PHY represents a physical layer connection between devices.
When a single PHY reports a "down" status, it typically indicates an issue with the physical connectivity or the associated hardware.
Cause 1: Improperly Seated Cable
If the SAS cable is not properly seated in the port, the connection for one or more PHYs may fail.
Reseating the cable on both ends (controller and shelf) often resolves the issue.
Cause 2: Defective Cable
A damaged or faulty SAS cable can cause PHY errors.
Replacing the cable and verifying the connection resolves the issue in this case.
NEW QUESTION # 55
Following an unexpected takeover, the taken-over node is waiting for giveback. The administrator plans to perform a giveback with the option -cfo-only true. What happens if this option is used?
- A. Only the data aggregates are sent back.
- B. Only the root aggregate is given back.
- C. Only a simulation of the giveback is performed.
- D. Only SVM root volumes are sent back
Answer: A
Explanation:
Purpose of the -cfo-only true Option:
This option is used during the giveback process in a NetApp cluster to control which aggregates are returned to the original node.
By specifying -cfo-only true, only the data aggregates are given back to the original node, while the root aggregate remains with the takeover node.
Use Case:
This command is helpful when you want to test the aggregate giveback functionality or if the root aggregate requires further investigation or maintenance before returning it to the original node.
NEW QUESTION # 56
An engineer needs to replace a failed NVMe SSD in an AFF system. Which handling practice is MOST important?
- A. Disable AutoSupport permanently
- B. Use ESD protection during handling and installation
- C. Avoid anti-static precautions to speed replacement
- D. Reboot both controllers before touching the drive
Answer: B
Explanation:
NVMe SSDs are sensitive electronic components vulnerable to electrostatic discharge damage.
Proper ESD protection procedures are essential during handling and replacement. Controller reboots are generally unnecessary for hot-swappable drives. AutoSupport configuration does not affect safe hardware handling practices.
NEW QUESTION # 57
You are using wafliron on an aggregate named homedir on a production system. When is the data on homedir available?
- A. after Phase 4 of wafliron is complete
- B. when wafliron is started
- C. after the mounting phase of wafliron is complete
- D. when the administrator manually onlines the aggregate
Answer: A
Explanation:
When using wafliron to repair WAFL inconsistencies on an aggregate, the aggregate becomes available after Phase 4 of the wafliron process is complete.
Phases of wafliron:
Phase 1: Initial scan to identify inconsistencies.
Phase 2: Corrects directory and inode structure issues.
Phase 3: Repairs blocks and metadata.
Phase 4: Completes final repairs and verification, after which the aggregate can be made available.
NEW QUESTION # 58
At what stage is a write acknowledged to a client?
- A. when the write has been flushed to disk
- B. when the write is present in the local node RAM and NVRAM
- C. when the write is present in the NVRAM on the local node and its HA partner
- D. when the write has been flushed from NVRAM to RAM
Answer: C
Explanation:
Write Acknowledgment in NetApp ONTAP:
In a clustered ONTAP system, write requests are acknowledged to the client only after they are securely stored in NVRAM on both the local node and its HA (High Availability) partner. This ensures redundancy and data protection in case of a node failure.
NEW QUESTION # 59
Users are reporting slowness when accessing certain volumes with extremely high-performance requirements via NFSv3 on a four-node switched NetApp ONTAP cluster. Other volumes on the same cluster are behaving normally. Investigation reveals that there is a high amount of throughput recorded for the cluster LIFs. What action enables you to determine which volumes are affected?
- A. Review NFS export policies to ensure that client subnets are listed for the affected volumes.
- B. View the NFS connected client information and review the "Remote-Reqs" counter.
- C. Check the NFS file locking lease period for the affected volumes.
- D. View the active CIFS sessions on the cluster to determine the affected workloads.
Answer: B
Explanation:
Reviewing NFS connected client information and the Remote-Reqs counter helps identify which volumes and clients are generating excessive remote requests across cluster interconnects. High remote request activity indicates workloads accessing data remotely from non-owning nodes, which can cause increased cluster LIF throughput and performance degradation.
NEW QUESTION # 60
A customer has a 4-node NetApp ONTAP cluster with NetApp FAS controllers. The customer is upgrading to NetApp AFF C-Series controllers and must upgrade with no downtime. The cluster serves block, file, and object protocols. The cluster must stay online for all protocols. The FAS system must also be removed from the cluster with no downtime. Which method do you use for this migration?
- A. NetApp Copy and Sync service
- B. aggregate relocate (ARL)
- C. volume move
- D. SnapMirror SVM replication
Answer: B
Explanation:
Aggregate Relocation (ARL) enables a nondisruptive controller upgrade within the same cluster by relocating aggregates from the old FAS controllers to the new AFF C-Series controllers while keeping block, file, and object services online throughout the migration.
NEW QUESTION # 61
You are replacing a boot device on a FAS8300 system that is running ONTAP 9.10P6 software.
You attach a USB memory stick to the external USB port on the storage controller but cannot access the memory stick. What step needs to be performed to access the boot device?
- A. The external USB port is not activated on NetApp systems.
- B. You need to use ONTAP 9.11 or later software.
- C. Set the port to "enabled" with setenv.
- D. Add the boot device before the BIOS is loaded.
Answer: C
Explanation:
When replacing a boot device on a FAS8300 system and using a USB memory stick for recovery or installation, the external USB port must be explicitly enabled. This is done through the setenv command in the boot environment.
Steps to Enable the External USB Port:
Reboot the system and interrupt the boot process to access the bootloader prompt.
At the bootloader prompt, use the following command:
arduino
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setenv usbport_enabled true
Save the configuration and proceed with the boot process.
NEW QUESTION # 62
A NetApp FAS50 HA pair contains a single NetApp DS212C shelf. A new single DS212C shelf of near-line SAS (NL-SAS) disks have been added to the same stack. The administrator tried to automatically assign the disks using the disk assign -auto true -node node-01 command. All the new disks continue to show in the cluster as unassigned. Which command is used to assign half of the new disks to node-01?
- A. storage disk option modify -autoassign-policy stack -node *
- B. storage disk option modify -autoassign off -node node-01
- C. storage disk assign -node node-01 -all true
- D. storage disk assign -owner node-01 -diskcount 6
Answer: D
Explanation:
The storage disk assign -owner node-01 -diskcount 6 command assigns a specified number of unassigned disks to node-01, which is appropriate for splitting ownership of the newly added shelf evenly across the HA pair.
NEW QUESTION # 63
What are two valid options for uploading a core file from a node that is running ONTAP 9.12.1 software to NetApp for analysis? (Choose two.)
- A. Download via CIFS and upload to upload.netapp.com.
- B. system node autosupport invoke -diagnostic
- C. Download via Service Processor Infrastructure (SPI) and upload to upload.netapp.com.
- D. system node autosupport invoke-core-upload
Answer: A,D
Explanation:
Options for Uploading Core Files:
Core files are diagnostic dumps created during system failures for analysis by NetApp Support.
They can be uploaded via multiple methods, depending on system configuration and access:
Option B (CIFS Download):
Core files can be downloaded from the node using a CIFS share and then manually uploaded to upload.netapp.com.
This method is useful if automated processes are unavailable or connectivity is limited.
Option D (Autosupport Invoke-Core-Upload):
The command system node autosupport invoke-core-upload automates the process of uploading the core file to NetApp.
It uses the configured Autosupport mechanism to transfer the file to NetApp Support for analysis.
NEW QUESTION # 64
You receive the following AutoSupport message:
When researching, you discover the following output:
What action do you take to resolve this issue?
- A. Update the firmware on the cluster switches.
- B. Replace the SFP on port e0a on node-02.
- C. Update the RCF file on the cluster switches.
- D. Replace the SFP on port e0a on node-01.
Answer: B
Explanation:
The degraded health output identifies Node-02 port e0a with link_flapping, indicating an unstable physical connection on that node port. Replacing the SFP on the affected port is the appropriate corrective action.
NEW QUESTION # 65
A customer accidentally removes the incorrect disk during a maintenance procedure on a RAID- DP aggregate. Which outcome is MOST likely if another disk fails before reconstruction completes?
- A. Automatic aggregate encryption
- B. Aggregate degradation with potential data loss risk
- C. Shelf firmware corruption
- D. Immediate node reboot
Answer: B
Explanation:
RAID-DP tolerates two disk failures, but removing the wrong disk increases risk exposure significantly. If another disk fails before reconstruction finishes, aggregate degradation or possible data unavailability can occur. Firmware corruption and automatic encryption are unrelated. Proper disk identification procedures are critical during maintenance activities.
NEW QUESTION # 66
Which three commands can be used to manually generate a kernel core file? (Choose three.)
- A. SP> system power cycle
- B. SP> system core
- C. ::> reboot -node <node_name> -dump true
- D. ::> halt -dump true -node <node_name>
- E. ::> system node panic -node <node_name>
Answer: C,D,E
Explanation:
To manually generate a kernel core file in ONTAP, the following commands can be used:
1. ::> reboot -node <node_name> -dump true
What it does:
Reboots the specified node and generates a core dump before rebooting.
Example Usage:
reboot -node <node_name> -dump true
2. ::> halt -dump true -node <node_name>
What it does:
Halts the specified node and generates a core dump before shutting down.
Example Usage:
halt -dump true -node <node_name>
3. ::> system node panic -node <node_name>
What it does:
Forces a panic on the specified node, which triggers a kernel core dump.
Example Usage:
system node panic -node <node_name>
NEW QUESTION # 67
You have created a case with NetApp Support for an issue with a DS4246 shelf on an ONTAP
9.12.1 system. They have requested that you provide shelf logs. What action do you need to take to collect the shelf logs?
- A. Invoke a diagnostic AutoSupport with the subsystem storage.
- B. Provide the output of the nodeshell command rdfile/etc/log/shelflog.
- C. Invoke an autosupport of type all using Active IQ Unified Manager.
- D. Invoke a diagnostic autosupport with the subsystem log_files.
Answer: A
Explanation:
To collect shelf logs for a DS4246 shelf in an ONTAP 9.12.1 system, you must invoke a diagnostic AutoSupport specifically targeting the storage subsystem. This action ensures that detailed storage logs, including shelf logs, are included in the AutoSupport bundle.
Steps to Collect Shelf Logs:
Use the following command:
bash
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system node autosupport invoke -node <node_name> -type diagnostic -subsystem storage Replace <node_name> with the name of the node experiencing the issue.
This command generates an AutoSupport message that includes logs related to storage subsystems, such as disk shelves and adapters.
Provide the AutoSupport case number to NetApp Support for further analysis.
NEW QUESTION # 68
A NetApp ONTAP cluster has several data aggregates that contain over 400 data volumes. The aggregates are configured to share a cloud tier to an S3 bucket. All volumes use an automatic policy that moves cold data older than seven days to the object store. During an S3 provider outage, the customer was unable to access their cold data. Which action prevents downtime for each volume when the S3 provider has another outage?
- A. Configure a mirrored aggregate with the SyncMirror feature.
- B. Configure an SVM SnapMirror relationship.
- C. Configure a volume SnapMirror relationship.
- D. Configure FabricPool mirroring.
Answer: D
Explanation:
FabricPool mirroring provides a secondary object store for the cloud tier. If the primary S3 provider becomes unavailable, ONTAP can continue accessing cold data through the mirrored object store, preventing downtime for the volumes.
NEW QUESTION # 69
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