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Network Appliance NS0-093 exam encompasses a variety of topics, including NetApp FAS architecture, cluster mode fundamentals, disk and aggregate management, and data protection technologies. NetApp Accredited Hardware Support Engineer certification exam focuses on evaluating the ability of a candidate to install, configure, and maintain NetApp storage systems, troubleshoot performance issues, provide technical support, and ensure successful operations.
The NS0-093 certification exam is a comprehensive exam that consists of multiple-choice questions, simulations, and other interactive question types. NS0-093 exam is designed to test the candidate's practical skills and knowledge related to NetApp hardware systems. NetApp Accredited Hardware Support Engineer certification is a great way to validate your skills and knowledge as a hardware support engineer and demonstrate your commitment to your profession.
Network Appliance NS0-093 Certification Exam is a comprehensive exam that covers a range of topics related to NetApp storage systems. NetApp Accredited Hardware Support Engineer certification is a valuable credential for hardware support engineers who work with NetApp storage systems, and it demonstrates that an individual has the knowledge and skills to install, configure, maintain, and troubleshoot NetApp storage systems. NetApp Accredited Hardware Support Engineer certification can help individuals advance their careers and increase their earning potential, and it can help organizations identify and hire qualified hardware support engineers who can effectively support their NetApp storage systems.
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Network Appliance NetApp Accredited Hardware Support Engineer Sample Questions (Q58-Q63):
NEW QUESTION # 58
In a SAS stack of shelves, what is the topology of the connection between expander and disk?
- A. ring
- B. point-to-point
- C. arbritrated loop
- D. loop
Answer: B
Explanation:
In a SAS stack of shelves, the connection between the expander and the disk uses a point-to-point topology.
* Point-to-Point:
* Each SAS disk in a shelf connects directly to the expander using a dedicated channel. This ensures that communication between the disk and expander is independent of other disks, improving performance and reliability.
* Why SAS Uses Point-to-Point:
* SAS (Serial Attached SCSI) eliminates the shared bandwidth limitations of traditional bus architectures (e.g., arbitrated loop or ring) by dedicating a connection to each device.
Key Details:
* A. arbitrated loop:
* Arbitrated loop is a topology used in Fibre Channel systems, not SAS.
* C. loop:
* SAS does not use loop-based communication; this is typical of older technologies like SCSI Parallel Interface (SPI).
* D. ring:
* Ring topology is not used in SAS stacks.
Why Other Options Are Incorrect:
* "NetApp SAS Shelf and Disk Configuration Guide" specifies point-to-point communication between expanders and disks in SAS environments.
References:
NEW QUESTION # 59
Which two commands confirm whether an aggregate is WAFL inconsistent? (Choose two.)
- A. node run -node <node> sysconfig -a
- B. node run -node <node> sysconfig -r
- C. wafiron show <aggregate>
- D. storage aggregate show
Answer: B,C
Explanation:
To determine whether an aggregate is WAFL (Write Anywhere File Layout) inconsistent, the following two commands can be used:
* What it does:This command directly checks the WAFL consistency status of the specified aggregate. If an aggregate is WAFL inconsistent, it will report the inconsistency in the output.
* How to use:
* Run the command: wafiron show <aggregate> (replace <aggregate> with the name of the aggregate).
* Look for indications of WAFL inconsistency in the output.
* Why it's relevant:The wafiron utility is specifically designed to provide WAFL status and diagnostics.
It is the most accurate and direct way to confirm whether an aggregate is inconsistent.
* References:
* "WAFL Troubleshooting Guide" from NetApp highlights the wafiron show command as a primary tool for checking aggregate consistency.
1. wafiron show <aggregate>
* What it does:This command displays RAID information for all aggregates on the specified node. If an aggregate is WAFL inconsistent, it will be explicitly mentioned in the output.
* How to use:
* Run the command: node run -node <node> sysconfig -r.
* Check the output for the phrase "WAFL inconsistent" under the corresponding aggregate.
* Why it's relevant:This command provides additional context, such as the RAID group details, which can help understand whether the inconsistency is isolated or part of a larger issue.
* References:
* "ONTAP CLI Commands Guide" specifies sysconfig -r as a method to verify aggregate status, including WAFL consistency.
2. node run -node <node> sysconfig -r
* C. storage aggregate show:
* This command displays aggregate configuration and usage information but does not report WAFL inconsistency.
* D. node run -node <node> sysconfig -a:
* While this command shows detailed hardware configuration information, it does not include WAFL consistency status for aggregates.
Why Other Options Are Incorrect:
NEW QUESTION # 60
A SAS connection is reporting a single PHY down.
What are the two most likely causes? (Choose two.)
- A. an offline shelf in the stack
- B. outdated I/O module (IOM1 firmware
- C. defective cable
- D. improperly seated cable
Answer: C,D
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.
Why Other Options Are Not Likely:
* B. Outdated IOM firmware: While outdated firmware can cause other issues, it rarely affects only a single PHY.
* D. Offline shelf: If an entire shelf is offline, more than one PHY would typically be affected, as multiple connections are involved in SAS stacks.
NetApp Reference Documentation:
* Found in the "ONTAP SAS Cabling Guide" and "Shelf Troubleshooting Guide". These documents detail troubleshooting for PHY errors and common SAS hardware issues.
NEW QUESTION # 61
Which RAID type provides protection against three disk failures?
- A. RAID DP
- B. RAID 5
- C. RAID-TEC
- D. RAID 4
Answer: C
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.
NetApp Reference Documentation:
* "NetApp RAID and Data Protection Guide" details the differences between RAID-DP and RAID-TEC, highlighting RAID-TEC's ability to tolerate three failures.
NEW QUESTION # 62
Which two of the following methods are valid ways to access a node which is not booting? (Choose two.)
- A. node management port
- B. cluster management port
- C. Service Processor
- D. serial console
Answer: C,D
Explanation:
If a node is not booting, the following methods can be used to access the system for troubleshooting:
* What it does:The SP provides out-of-band management access to the node, even if the node is not booting.
* How to use:
* Connect to the SP using SSH or a direct console connection.
* Use SP commands to gather logs or perform diagnostics.
1. Service Processor (SP)
* What it does:The serial console provides direct access to the node's bootloader or maintenance mode.
* How to use:
* Connect to the serial port using a terminal emulator.
* Use console commands to interact with the system.
2. Serial Console
* A. node management port:
* The node management interface is only accessible if the node is booted and ONTAP is running.
* B. cluster management port:
* The cluster management interface requires the cluster to be operational, which is not possible if the node is not booting.
Why Other Options Are Incorrect:
* NetApp "Service Processor and Serial Console Guide" provides instructions for accessing a non- booting node.
References:
NEW QUESTION # 63
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