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Network Appliance NS0-094 Exam Syllabus Topics:

SectionObjectives
Active IQ- Active IQ Usage
  • 1. How to use Active IQ
NetApp Hardware- Hardware Components and Replacement
  • 1. Compute technology
  • 2. Hardware replacement process
  • 3. Storage hardware technology
  • 4. FRUs in NetApp systems
Troubleshooting NetApp Hardware and Software- Troubleshooting Techniques
  • 1. Collecting and analyzing information
  • 2. Performance analysis
  • 3. Troubleshooting data access issues
NetApp Cloud Data Services- Cloud Service Components
  • 1. Components of cloud data services
  • 2. Components of hybrid cloud solutions
Data Protection- Protection Concepts
  • 1. Data protection operations
  • 2. Data protection concepts
ONTAP OS- Core OS Concepts
  • 1. ONTAP logging mechanisms
  • 2. Disk or aggregate concepts
  • 3. ONTAP interactions with external components
  • 4. Volume concepts
  • 5. ONTAP networking concepts
  • 6. Supported ONTAP protocols

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Network Appliance NetApp Hardware Support Engineer Professional Exam Sample Questions (Q124-Q129):

NEW QUESTION # 124
Which three commands can be used to manually generate a kernel core file? (Choose three.)

Answer: A,C,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 # 125
Which two NetApp tools should be used when troubleshooting the root cause of an unexpected controller reboot? (Choose two.)

Answer: A,D

Explanation:
To troubleshoot the root cause of an unexpected controller reboot, the following tools are commonly used:
* What it does : Provides monitoring and performance data for the ONTAP cluster, including historical event logs that may help identify the root cause of a reboot.
1. Active IQ Unified Manager
* What it does : The CLI allows you to gather logs and status information directly from the affected node. Commands like event log show and system core are essential for identifying the reason behind the reboot.
2. ONTAP CLI
* B. Active IQ Digital Advisor :
* This tool focuses on predictive analytics and proactive recommendations, not troubleshooting unexpected reboots.
* D. ONTAP Mediator :
* This tool is used for managing MetroCluster configurations, not for troubleshooting reboots.
* E. Active IQ Config Advisor :
* This tool checks for configuration best practices but does not provide detailed logs or reboot diagnostics.
Why Other Options Are Incorrect:
References: NetApp "ONTAP System Management Guide" emphasizes the use of Unified Manager and CLI for troubleshooting system issues.


NEW QUESTION # 126
What is the default amount of time that a volume is available for recovery from the volume recovery queue following a volume deletion?

Answer: B

Explanation:
When a volume is deleted in a NetApp ONTAP system, it is placed in the Volume Recovery Queue. By default, the volume remains in this recovery queue for 12 hours before being permanently deleted. This allows administrators to recover mistakenly deleted volumes within the set retention period.
Explanation of Default Behavior:
Volume Recovery Queue:
This is a feature in NetApp ONTAP that acts as a safety mechanism, providing a grace period for recovering deleted volumes.
The default retention period for volumes in the recovery queue is 12 hours, as confirmed by the NetApp KB: "How to use the Volume Recovery Queue." How to Recover a Deleted Volume:
Administrators can recover a deleted volume as long as it remains in the recovery queue and the retention period has not expired.
Use the ONTAP CLI command:
arduino
Copy code
cluster::> volume recovery-queue recover -vserver <vserver_name> -volume <volume_name> This command restores the volume back to its original state.
How to Check the Volume Recovery Queue:
To view volumes in the recovery queue and their expiration times, use:
arduino
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cluster::> volume recovery-queue show
Changing the Default Retention Period:
While the default period is 12 hours, it can be adjusted by administrators to fit specific organizational requirements. This is done via system settings or policies.


NEW QUESTION # 127
A new disk shelf was added to a NetApp ONTAP cluster nondisruptively. After using the disk show command, some of the disks in the shelf are not visible in the system. What is causing this issue?

Answer: D

Explanation:
Duplicate shelf IDs cause ONTAP to be unable to uniquely identify all disks in the newly added shelf, resulting in some disks not appearing in the system after the nondisruptive shelf addition.


NEW QUESTION # 128
You have replaced the cluster backend switches on a 4-node NetApp ONTAP cluster with new switches. After the replacement, you realize that the system shows errors for the old switches that were removed:

You also notice that system switch ethernet showshows four switches, the two old switches and the two new switches.
What action will resolve the issue?

Answer: B

Explanation:
The old cluster switches remain in the ONTAP switch database after the hardware replacement.
Using the system switch ethernet delete command removes the obsolete switch entries, which clears the stale monitoring and health alerts associated with the removed switches.


NEW QUESTION # 129
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