[2025年06月20日]Fast2test NS0-093試験練習テスト問題（更新された63問あります)
合格させるNetwork Appliance NS0-093試験情報と無料練習テスト
質問 # 18
What is the recommended value for disk and CPU use when you plan an upgrade?
- A. less than 70%
- B. less than 90%
- C. less than 85%
- D. less than 50%
正解：A
解説：
Upgrade Considerations for Disk and CPU Utilization:
* During an ONTAP upgrade, it is critical to ensure the system has sufficient resources to handle the upgrade process without impacting normal operations.
Recommended Threshold:
* NetApp recommends that both disk and CPU utilization should be below 70% before initiating an upgrade. This ensures that there is enough headroom for the upgrade operations and avoids performance degradation.
Steps to Verify Utilization:
* Use the system node show -fields cpu command to check CPU usage.
* Use the storage aggregate show -fields used command to check aggregate disk utilization.
NetApp Reference Documentation:
* "ONTAP Upgrade and Maintenance Guide" specifies the 70% threshold for disk and CPU usage during upgrade planning.
* The "ONTAP Performance Management Guide" provides methods for monitoring system resource utilization.
質問 # 19
When you plan an ONTAP upgrade, which NetApp tool generates a detailed upgrade plan?
- A. Active IQ Unified Manager
- B. Active IQ Config Avisor
- C. ONTAP System Manager
- D. Upgrade Advisor
正解：D
解説：
The Upgrade Advisor is a NetApp tool that generates a detailed, step-by-step plan for upgrading an ONTAP system. This tool is available through the Active IQ portal and helps ensure a smooth and risk-free upgrade process.
* Provides a tailored upgrade plan based on the current ONTAP version, cluster configuration, and desired target version.
* Identifies potential risks, compatibility issues, and pre-requisite tasks for the upgrade.
* Offers detailed instructions for each stage of the upgrade process.
Key Features of Upgrade Advisor:
* A. ONTAP System Manager:
* While System Manager can be used to initiate upgrades, it does not generate a detailed upgrade plan.
* B. Active IQ Unified Manager:
* Unified Manager focuses on monitoring and management but does not provide upgrade plans.
* D. Active IQ Config Advisor:
* Config Advisor checks for best practices and configuration issues but is not used for generating upgrade plans.
Why Other Options Are Incorrect:
* NetApp's "ONTAP Upgrade Guide" emphasizes the use of Upgrade Advisor for planning upgrades.
* Active IQ documentation provides detailed instructions on accessing and using the Upgrade Advisor tool.
References:
質問 # 20
In the latest MANAGEMENT LOG AutoSupport message, you try to inspect the ENVIRONMENT section but find it empty.
In which section of AutoSupport can you find the reason?
- A. AUTOSUPPORT-HISTORY.XML
- B. MANIFEST.XML
- C. AUTOSUPPORT-BUDGET.XML
- D. HEADERS
正解：C
解説：
If the ENVIRONMENT section of the latest MANAGEMENT LOG AutoSupport message is empty, the reason can typically be found in the AUTOSUPPORT-BUDGET.XML file. This file contains information about AutoSupport resource allocation, including what sections were processed and any limits that were hit.
* AUTOSUPPORT-BUDGET.XML:
* This file provides a summary of the resources (budget) allocated for different AutoSupport sections.
* If the ENVIRONMENT section is missing or empty, the AUTOSUPPORT-BUDGET.XML file will indicate whether it was skipped due to resource constraints or configuration limits.
* Why Other Sections Do Not Apply:
* B. HEADERS: This section only contains metadata about the AutoSupport message, such as timestamps and node details. It does not explain missing sections.
* C. AUTOSUPPORT-HISTORY.XML: This file tracks the history of AutoSupport messages but does not provide information about missing sections.
* D. MANIFEST.XML: This file lists the contents of the AutoSupport bundle but does not provide details on why a specific section is empty.
Key Details:
* "ONTAP AutoSupport Troubleshooting Guide" explains the role of the AUTOSUPPORT-BUDGET.
XML file in diagnosing missing or incomplete AutoSupport sections.
References:
質問 # 21
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. Invoke a diagnostic autosupport with the subsystem log_files.
- C. Provide the output of the nodeshell command rdfile/etc/log/shelflog.
- D. Invoke an autosupport of type all using Active IQ Unified Manager.
正解：A
解説：
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.
* Use the following command:
Steps to Collect Shelf Logs: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.
* A. Provide the output of the nodeshell command rdfile /etc/log/shelflog:
* While this command allows manual reading of shelf logs, it is not a recommended or comprehensive approach for collecting logs for NetApp Support cases.
* B. Invoke an AutoSupport of type all using Active IQ Unified Manager:
* This action generates a generic AutoSupport bundle, which may not include detailed shelf logs unless explicitly targeted.
* D. Invoke a diagnostic AutoSupport with the subsystem log_files:
* The log_files subsystem targets general system logs, not storage-specific logs like shelf logs.
Why Other Options Are Incorrect:
* "ONTAP 9 AutoSupport and Diagnostics Guide" outlines the use of the subsystem storage option for collecting shelf logs.
* The "Troubleshooting Storage Subsystems" documentation specifies diagnostic AutoSupport as the method for gathering shelf-related logs.
References:
質問 # 22
Which LOADER prompt command ensures that POST is done on boot?
- A. bye
- B. setenv POST=true
- C. boot_diag
- D. boot_ontap
正解：B
解説：
To ensure that POST (Power-On Self-Test) runs on boot, the setenv POST=true command is used at the LOADER prompt. This command enables the system to perform POST diagnostics before proceeding with the boot process.
* POST Purpose: POST checks system hardware components (such as memory, disk, and controllers) for faults before loading the ONTAP kernel.
* How to Use:
* At the LOADER prompt, type:
Key Details:arduino
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setenv POST=true
* Save the configuration and reboot the system.
* B. bye:
* This command restarts the system but does not ensure that POST runs on boot.
* C. boot_diag:
* This command boots the system into diagnostic mode but is not directly related to enabling POST on boot.
* D. boot_ontap:
* This command boots ONTAP but skips POST if it is not explicitly enabled.
Why Other Options Are Incorrect:
* NetApp "ONTAP System Boot and Recovery Guide" describes setenv POST=true for enabling POST diagnostics.
References:
質問 # 23
When you add a new disk to an ONTAP 9.1 system, you see an error that the disk "has raid label with version (16), which is not within the currently supported range (14-15)." What is one possible cause of this error?
- A. The disk was in a system with a newer version of ONTAP software
- B. The disk firmware is too new for ONTAP software.
- C. The disk is a non-zeroed spare.
- D. The disk needs to be assigned to the new system.
正解：A
解説：
Explanation of RAID Label Versions:
* Disks in ONTAP systems contain metadata known as RAID labels. These labels store critical information such as ownership, aggregate membership, and versioning.
* The error indicates a mismatch between the RAID label version on the disk and the supported versions of the ONTAP system.
Why Option D Is Correct:
* If a disk has a RAID label created by a newer version of ONTAP (e.g., version 16) and is then inserted into a system running an older version of ONTAP (e.g., supporting versions 14-15), the label will not be recognized.
* This mismatch causes ONTAP to reject the disk.
Resolution:
* Upgrade the ONTAP version to match the RAID label on the disk.
* Alternatively, zero the disk to reset its RAID label, but this will erase all data on the disk.
NetApp Reference Documentation:
* The "ONTAP Disk Management Guide" and "ONTAP Compatibility Matrix" explain RAID label versions and compatibility issues when moving disks between ONTAP systems.
質問 # 24
Which two of the following are field replaceable units (FRUs) on an AFF A220 system? (Choose two.)
- A. NVMEM battery
- B. chassis fan
- C. NVME Flash Cache feature
- D. mSATA boot device
正解：A、D
解説：
* A. NVMEM battery
* Explanation:The NVMEM (Non-Volatile Memory) battery is a critical component for retaining data in case of a power failure. It is classified as a Field Replaceable Unit (FRU) in an AFF A220 system.
* Replacement Notes:
* Replacement can be performed by field engineers.
* The system will typically alert you when the battery requires replacement.
* B. mSATA boot device
* Explanation:The mSATA (mini-SATA) boot device contains the ONTAP operating system and is also a FRU in the AFF A220. It is critical for the system's boot process and can be replaced if it becomes faulty.
* Replacement Notes:
* Boot devices are easily replaceable while ensuring ONTAP is reinstalled on the new device.
Why the Other Options Are Incorrect:
* C. NVMe Flash Cache feature:
* Incorrect. NVMe Flash Cache is not a physical FRU but a feature for accelerating read performance. It is implemented via software and NVMe-based SSDs, which are not specifically field replaceable in AFF A220.
* D. Chassis fan:
* Incorrect. The AFF A220 does not classify chassis fans as FRUs. These are usually part of the cooling system, but their replacement may require system shutdown or is integrated into the design.
References:
* NetApp Hardware Documentation: AFF A220 Component Replacement Guide.
* NetApp Knowledge Base: Articles on replacing NVMEM batteries and mSATA boot devices.
質問 # 25
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. system node autosupport invoke-core-upload
- B. system node autosupport invoke -diagnostic
- C. Download via Service Processor Infrastructure (SPI) and upload to upload.netapp.com.
- D. Download via CIFS and upload to upload.netapp.com.
正解：A、D
解説：
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.
NetApp Reference Documentation:
* "ONTAP Autosupport Guide" and "ONTAP Troubleshooting Guide" provide instructions for manually and automatically uploading core files.
質問 # 26
What is the default amount of time that a volume is available for recovery from the volume recovery queue following a volume deletion?
- A. 12 hours
- B. 48 hours
- C. 72 hours
- D. 24 hours
正解：A
解説：
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:
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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:
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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.
Why the Other Options Are Incorrect:
* B. 48 hours: Incorrect. The default retention period is not 48 hours; it is 12 hours by default.
* C. 72 hours: Incorrect. While a custom configuration could allow this, it is not the default.
* D. 24 hours: Incorrect. Although this was previously thought to be the default, NetApp documentation explicitly states it is 12 hours.
References:
* NetApp Knowledge Base Article: "How to use the Volume Recovery Queue".
* NetApp ONTAP Documentation: Volume Recovery and Data Management Procedures.
質問 # 27
Which two tools can you use to invoke AutoSupport? (Choose two.)
- A. NetApp Cloud Insights
- B. the SmartSolve tool
- C. CLI
- D. the NetApp Active IQ website
正解：C、D
解説：
To invoke AutoSupport in ONTAP, the following tools can be used:
* How to use:Run the command:
1. CLI (Command Line Interface)python
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autosupport invoke -node <nodename> -type all
* This triggers AutoSupport to collect and send logs and system information.
* How to use:Log in to the Active IQ portal and use its interface to request an AutoSupport message from the connected ONTAP systems.
2. NetApp Active IQ website
* A. NetApp Cloud Insights:
* This tool is used for monitoring and performance analysis, not for triggering AutoSupport messages.
* D. the SmartSolve tool:
* SmartSolve is used for case resolution guidance but does not invoke AutoSupport.
Why Other Options Are Incorrect:
* "ONTAP AutoSupport Guide" provides instructions for invoking AutoSupport via CLI and Active IQ.
References:
質問 # 28
What are the two steps to unfail a disk in maintenance mode? (Choose two.)
- A. Use the "disk unfair command.
- B. Use the disk remove command.
- C. Reseat the disk.
- D. Remove it from the Failed Disk Registry.
正解：A、D
解説：
Steps to Unfail a Disk in Maintenance Mode:
* When a disk is marked as "failed," it is added to the Failed Disk Registry and marked as unusable by the system. Unfailing a disk involves removing it from this registry and resetting its state.
Step 1: Remove the Disk from the Failed Disk Registry
* Use the command: registry remove <disk> to delete the disk from the Failed Disk Registry. This clears its "failed" status.
Step 2: Use the Disk Unfail Command
* Execute the disk unfail <disk> command to reset the disk status and make it available for use.
Key Notes:
* After unfailing, the disk will be treated as a spare and must be reassigned or re-added to an aggregate.
* If the disk remains failed after these steps, physical hardware issues may need to be addressed.
NetApp Reference Documentation:
* The "ONTAP Maintenance Mode Guide" and "Disk Management Guide" provide detailed instructions for handling failed disks and using the disk unfail command.
質問 # 29
Which two NetApp tools should be used when troubleshooting the root cause of an unexpected controller reboot? (Choose two.)
- A. ONTAP CLI
- B. Active IQ Digital Advisor
- C. Active IQ Unified Manager
- D. ONTAP Mediator
- E. Active IQ Config Advisor
正解：A、C
解説：
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:
* NetApp "ONTAP System Management Guide" emphasizes the use of Unified Manager and CLI for troubleshooting system issues.
References:
質問 # 30
Which statement best describes the functionality of RAID Error Propagation (REP)?
- A. An unrecoverable error on a user data block triggers a NetApp WAFL inconsistency.
- B. An unrecoverable error on a metadata block does not trigger a NetApp WAFL inconsistency.
- C. An unrecoverable error on a user data block does not trigger a NetApp WAFL inconsistency.
- D. A recoverable error on a user data block triggers a NetApp WAFL inconsistency.
正解：C
解説：
Functionality of RAID Error Propagation (REP):
* RAID Error Propagation (REP) ensures that errors on the disk layer, such as unrecoverable read errors, do not propagate as inconsistencies into the WAFL (Write Anywhere File Layout) metadata layer.
* WAFL is designed to manage data blocks, and if an error occurs on a user data block, WAFL can identify and handle it gracefully without flagging an inconsistency.
Why Option A Is Correct:
* REP ensures that errors on a user data block are isolated and do not trigger WAFL inconsistencies.
Instead, the error is handled at the RAID layer or higher without corrupting metadata.
* This design provides a robust mechanism to protect against data integrity issues caused by disk errors.
NetApp Reference Documentation:
* Refer to the "ONTAP Storage Management Guide" and the "NetApp RAID Guide," which explain how RAID and WAFL interoperate and how REP is implemented.
質問 # 31
Which two statements regarding drive 1.2.3.L1 are true? (Choose two.)
- A. The drive is in bay 2.
- B. The drive is in bay 3.
- C. The drive is in shelf 2.
- D. The drive is in shelf 1.
正解：B、C
解説：
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.
* 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).
* C. The drive is in bay 2: The bay ID is explicitly specified as 3, not 2.
* D. The drive is in shelf 1: The shelf ID is clearly given as 2, not 1.
* NetApp Hardware Universe documentation provides details on disk naming conventions.
* The "ONTAP Disk Management Guide" includes a full explanation of disk IDs and their interpretation.
How to Interpret Disk Identifier 1.2.3.L1:Why Other Options Are Incorrect:References:
質問 # 32
You have replaced a failed boot device. You perform boot_recovery and receive no errors. However, when the node reboots, it reports that it has no disks.
What are two possible causes? (Choose two.)
- A. The node is booting a lower version of ONTAP software than was last used.
- B. The disks that are owned by this node have been marked as failed.
- C. The SAS cables were incorrectly reconnected after reinstalling the motherboard.
- D. The interconnect is down.
正解：A、C
解説：
Possible Causes for "No Disks" Error:
* A (Incorrect SAS Cabling): If the SAS cables are incorrectly reconnected or swapped after replacing the boot device, the disks may not be detected because the physical connection to the shelves is compromised. Verifying and reseating the SAS cables is essential.
* C (Lower ONTAP Version): If the node boots into an ONTAP version that is lower than the version previously used, it might not recognize the RAID labels or disk metadata created by the higher ONTAP version.
Why Other Options Are Incorrect:
* B (Disks Marked as Failed): Disks that are marked as failed would still be visible in the system, though unusable.
* D (Interconnect Down): An interconnect failure affects HA functionality but does not prevent a node from detecting its own disks.
NetApp Reference Documentation:
* Refer to the "ONTAP Boot Recovery Guide" and "SAS Cabling Guide" for steps to resolve disk detection issu
質問 # 33
Which two scenarios are common causes of the root volume needing root volume recovery? (Choose two.)
- A. Root volume migrate was performed.
- B. The mainboard was replaced following a Non-Maskable Interrupt (NMI) panic.
- C. The cluster configuration is out of sync on the volume.
- D. The root volume ran out of space.
正解：B、D
解説：
* If the root volume runs out of space, it can cause operational issues and require recovery.
* The root volume must always have sufficient space for system logs, configuration files, and core dumps.
1. Root Volume Ran Out of Space:
* When a mainboard is replaced, the system configuration stored in the root volume may need to be restored or recovered.
2. Mainboard Was Replaced Following an NMI Panic:
* C. Root volume migrate was performed:
* Root volume migration is a normal operation and does not typically cause the need for root volume recovery.
* D. The cluster configuration is out of sync on the volume:
* While this can cause configuration issues, it does not directly lead to root volume recovery.
Why Other Options Are Incorrect:
* "ONTAP Root Volume Management Guide" explains scenarios leading to root volume issues and recovery procedures.
References:
質問 # 34
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
正解：A
解説：
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.
NetApp Reference Documentation:
* The "ONTAP High-Availability Configuration Guide" and "Cluster Failover Management Guide" detail the behavior of the -cfo-only option during giveback scenarios.
質問 # 35
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ネットワークアプライアンスNS0-093（NetApp認定ハードウェアサポートエンジニア）認定試験は、NetAppハードウェア製品のインストール、構成、サポートにおけるIT専門家の知識とスキルを評価するために設計された包括的な試験です。この認定は、NetAppストレージシステムの維持とトラブルシューティングを担当するハードウェアサポートエンジニア、システム管理者、およびIT専門家に最適です。
NS0-093認定試験では、ハードウェアのインストールと構成、ディスクシェルフと電子シリーズストレージシステム、FASとAFFストレージシステム、ストレージ効率の機能など、幅広いトピックをカバーしています。この試験では、NetAppハードウェアアーキテクチャ、トラブルシューティング方法論、およびシステムメンテナンスのベストプラクティスに関する候補者の知識もテストします。
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