NS0-094 시험 - NetApp실제시험문제와 답 - 61문항

Question No : 1

What is the recommended value for disk and CPU use when you plan an upgrade?

A.less than 50%
B.less than 90%
C.less than 85%
D.less than 70%

정답:
Explanation:
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.

Question No : 2

Which two statements are true about an IOM 12 module? (Choose two.)

A.It has two SAS ports.
B.It has four SAS ports.
C.It does not have an Ethernet port for alternate control path (ACP).
D.It has an Ethernet port for alternate control path (ACP).

정답:
Explanation:
Overview of IOM 12 Module:
The IOM 12 module is used in NetApp storage shelves for SAS connectivity.
Key Features of IOM 12:
SAS Ports: The IOM 12 module has four SAS ports (two IN and two OUT) to support daisy-chaining of shelves and provide redundancy.
ACP (Alternate Control Path): The IOM 12 includes an Ethernet port for ACP, which is used for out-of-band management and monitoring of the storage shelves. Elimination of Other Options:
Option A is incorrect because the module has four SAS ports, not two.
Option C is incorrect because the module does include an Ethernet port for ACP.
NetApp Reference Documentation:
"NetApp Hardware Universe" lists the specifications of the IOM 12 module, including its SAS and ACP capabilities.
The "ONTAP Shelf Installation Guide" discusses ACP and its role in shelf management.

Question No : 3

You are reviewing the output of disk show and one of the disks is reporting a container type of “unknown”.
What is causing this status?

A.The disk is not owned by a member of the high-availability (HA) pair.
B.The disk is failed.
C.The disk is in the maintenance center.
D.The disk does not have an owner.

정답:
Explanation:
Understanding "Container Type: Unknown" in Disk Show Output:
The "unknown" container type typically indicates that the disk is not properly configured or recognized by ONTAP.
This status often occurs when a disk does not have an owner assigned.
Root Cause:
For a disk to be used in an ONTAP system, it must be owned by a member of the high-availability (HA) pair.
If no ownership is assigned, the disk will not be initialized, resulting in an "unknown" container type.
Steps to Resolve:
Use the disk assign command to manually assign ownership of the disk. Example: storage disk assign -disk <disk_name> -owner <node_name> NetApp Reference Documentation:
"ONTAP Disk Management Guide" explicitly states that unowned disks report "unknown" container type until they are assigned to a node.
This is further detailed in the "ONTAP Troubleshooting Guide" under disk configuration issues.

Question No : 4

On an AFF A700 system, a SAS stack is connected to SAS ports 2a and 2b. The system has an additional 4-port SAS card in slot 9.
How should the cabling the corrected for best practices?

A.Use port 2a and 9a.
B.Use port 2a and 9b.
C.Use port 2a and 2c.
D.Use port 2b and 9d.

정답:
Explanation:
Best Practices for SAS Cabling in AFF A700 Systems:
The AFF A700 system has built-in SAS ports (e.g., 2a and 2b) as well as additional SAS ports on optional SAS cards.
To ensure high availability and redundancy, it is recommended to distribute SAS connections across multiple SAS ports from different controllers or slots.
Why Port 2a and 9a Are Recommended:
Port 2a is a built-in SAS port on the AFF A700 system.
Port 9a belongs to the additional SAS card in slot 9.
By connecting the stack using 2a and 9a, you utilize different SAS domains (built-in controller ports and add-on card ports), providing both path redundancy and load balancing. NetApp Reference Documentation:
"NetApp Hardware Universe" and "ONTAP Hardware Installation Guide" highlight that SAS cabling for redundancy should leverage different ports, including those from separate SAS controllers or add-on cards.
NetApp's best practice guidelines suggest avoiding connections to the same SAS controller or port group for critical stacks.

Question No : 5

Which two steps are required to replace a drawer in a DS460c shelf? (Choose two.)

A.Shut down both nodes.
B.Disconnect the cable chains from the chassis.
C.Power off the shelf.
D.Evacuate all drives in the drawer.

정답:
Explanation:
To replace a drawer in a DS460c shelf, the following steps must be taken:

Question No : 6

A node has panicked with a PCI/NMI error. Giveback has not been performed.
Which two commands should you run to collect the logs to determine the cause? (Choose two.)

A.pelog Ca Cg=2
B.show pci Cv
C.rdfile /mroot/etc/log/SSRAM
D.event log show

정답:
Explanation:
To diagnose a PCI/NMI error and collect logs, use the following commands:

Question No : 7

Which two tools can you use to invoke AutoSupport? (Choose two.)

A.NetApp Cloud Insights
B.CLI
C.the NetApp Active IQ website
D.the SmartSolve tool

정답:
Explanation:
To invoke AutoSupport in ONTAP, the following tools can be used:

Question No : 8

Which two tools can be used to recover an inconsistent aggregate? (Choose two.)

A.file check
B.wafl_check
C.wafl snapiron
D.wafliron

정답:
Explanation:
To recover an inconsistent aggregate, the following tools can be used:

Question No : 9

Which of the following scenarios could result in a NetApp WAFL inconsistency in a RAID DP aggregate?

A.two disks failing and a block error during reconstruction
B.rebooting a node during a disk reconstruction
C.two disks failing within seconds of each other
D.both party disks failing

정답:
Explanation:
A NetApp WAFL (Write Anywhere File Layout) inconsistency in a RAID-DP aggregate could occur in the following scenarios:

Question No : 10

When you plan an ONTAP upgrade, which NetApp tool generates a detailed upgrade plan?

A.ONTAP System Manager
B.Active IQ Unified Manager
C.Upgrade Advisor
D.Active IQ Config Avisor

정답:
Explanation:
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.
Key Features of Upgrade Advisor:
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.
Why Other Options Are Incorrect:
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.
Reference: 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.

Question No : 11

Which type of core file is generated when a node panics?

A.mgwd core
B.user space core
C.sync core
D.kernel core

정답:
Explanation:
When a node panics in ONTAP, a kernel core file is generated. This core file contains information about the kernel's state at the time of the panic and is essential for debugging system crashes.
Key Details:
A kernel core file is produced during a node panic to capture information about the kernel, memory, and processes that led to the crash.
The core file is stored on the root aggregate by default and can be uploaded to NetApp Support using the autosupport invoke-core-upload command.
Why Other Options Are Incorrect:
A. mgwd core:
This is related to the Management Gateway daemon, which handles management traffic. It does not
generate a core file during a panic.
B. user space core:
User space cores are generated for processes running in user space, not for kernel panics.
C. sync core:
Sync cores refer to synchronized cores for debugging but are not the primary type generated during a node panic.
Reference: "ONTAP Panic Troubleshooting Guide" specifies kernel core files as the output of a node panic.
"ONTAP Core File Management Guide" details the handling of kernel core files after a crash.

Question No : 12

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.Set the port to “enabled” with setenv.
B.You need to use ONTAP 9.11 or later software.
C.Add the boot device before the BIOS is loaded.
D.The external USB port is not activated on NetApp systems.

정답:
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
Copy code
setenv usbport_enabled true
Save the configuration and proceed with the boot process.
Why Other Options Are Incorrect:
B. You need to use ONTAP 9.11 or later software:
ONTAP 9.10P6 fully supports external USB recovery. There is no need to upgrade to ONTAP 9.11 for this functionality.
C. Add the boot device before the BIOS is loaded:
While the USB device must be inserted during the boot process, this alone will not enable access unless the port is enabled via setenv.
D. The external USB port is not activated on NetApp systems:
This is incorrect. The external USB port is supported but must be explicitly enabled in the bootloader environment.
Reference: NetApp Hardware Installation Guide for FAS8300 systems outlines the steps for enabling the USB port during recovery.
"ONTAP Boot Troubleshooting Guide" specifies the use of the setenv command to activate USB ports.

Question No : 13

What are two valid commands that can be used to trigger an AutoSupport? (Choose two.)

A.::> autosupport history show-upload-details Cnode <nodename>
B.::> system node coredump upload Cnode <nodename>
C.::> autosupport invoke Cnode <nodename> Ctype all
D.::> autosupport invoke-core-upload Cnode <nodename>

정답:
Explanation:
To trigger an AutoSupport message in ONTAP, the following commands are valid:

Question No : 14

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.Provide the output of the nodeshell command rdfile/etc/log/shelflog.
B.Invoke an autosupport of type all using Active IQ Unified Manager.
C.Invoke a diagnostic AutoSupport with the subsystem storage.
D.Invoke a diagnostic autosupport with the subsystem log_files.

정답:
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.
Why Other Options Are Incorrect:
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.
Reference: "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.

Question No : 15

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-BUDGE
B.XML
C.HEADERS
D.AUTOSUPPORT-HISTOR
E.XML
F.MANIFES
G.XML

정답:
Explanation:
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.
Key Details:
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.
Reference: "ONTAP AutoSupport Troubleshooting Guide" explains the role of the AUTOSUPPORT-BUDGET.XML file in diagnosing missing or incomplete AutoSupport sections.

NetApp NS0-094 시험