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Network Appliance NS0-521 Exam Syllabus Topics:

SectionWeightObjectives
ONTAP SAN Architecture and Concepts25%- SAN security fundamentals
- Multipathing and high availability
- SVM, LIF, igroup, LUN concepts
- Fibre Channel (FC), FCoE, iSCSI, NVMe protocols
Testing, Optimization & Troubleshooting25%- Common SAN and ONTAP issue resolution
- Performance tuning and monitoring
- Data protection and replication for SAN
- Connectivity and path verification
ONTAP SAN Implementation & Configuration30%- FC/NVMe/iSCSI service configuration
- Host OS integration and configuration
- Zoning, igroup creation, and LUN provisioning
- SVM and network interface setup
ONTAP SAN Solution Assessment20%- Interoperability Matrix Tool usage
- Capacity and performance planning
- Requirements gathering and planning
- Hardware and software compatibility

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Network Appliance Implementation Engineer - SAN ONTAP Exam Sample Questions (Q67-Q72):

NEW QUESTION # 67
What are two possible options for iSCSI authentication methods? (Choose two.)

Answer: B,D

Explanation:
iSCSI authentication can use CHAP (Challenge-Handshake Authentication Protocol) and certificate-based authentication methods to secure sessions.


NEW QUESTION # 68
An SVM is created for FCP traffic. LUNs must be created to share with ESXi hosts for datastores. Which two items must be configured after the LUN is created, for this to happen? (Choose two.)

Answer: C,D

Explanation:
For configuring LUNs to share with ESXi hosts for datastores in an SVM created for FCP traffic, the following steps are necessary after creating the LUN:
* Create an igroup with the ESXi hosts' WWPNs: This step involves defining an initiator group that includes the WWPNs of the ESXi hosts that need access to the LUN.
* Map the LUNs to the igroup: This step assigns the LUN to the created igroup, allowing the ESXi hosts to access the LUN.
For further details, refer to:
* NetApp Documentation on LUN and igroup Configuration


NEW QUESTION # 69
An administrator is troubleshooting a SAN network issue where the NVMe/TCP LIF keeps disconnecting. Which command helps the administrator to investigate this issue?

Answer: D

Explanation:
The network port reachability show command helps diagnose connectivity problems by verifying the reachability of network ports, which is essential when troubleshooting LIF disconnections in a SAN NVMe/TCP environment.


NEW QUESTION # 70
A customer opens a support case for performance issues with an FC Oracle database after migrating from a NetApp AFF system to a NetApp All SAN Array (ASA) platform. Further investigation shows that the number of paths exceeds the recommendation for SAN deployment.
What are two ways to address this problem? (Choose two.)

Answer: A,D

Explanation:
When the number of paths exceeds the recommended configuration for SAN deployment, it can cause performance issues. To address this problem, you can:
* Use Selective LUN Mapping (SLM): SLM allows you to control which LIFs (Logical Interfaces) are used to access specific LUNs, thus reducing the number of paths and potentially improving performance by aligning with best practice configurations.
* Reconfigure the fabric switch zoning: Adjusting the zoning on the fabric switches can help manage and optimize the number of paths, ensuring that there are not too many paths that could lead to inefficient I/O operations and performance degradation.
For more details, refer to:
* NetApp SAN Host Configuration
* NetApp Best Practices for SAN


NEW QUESTION # 71
A storage engineer of a 4-node cluster notices that nodes 1 and 2 are both running at 90% capacity. The engineer wants to move LUNs that have Selective LUN Mapping (SLM) enabled from node 1 to node 4. What should be done after the migration?

Answer: A

Explanation:
After migrating LUNs between nodes in a cluster, updating the reporting nodes ensures that hosts can correctly connect to the LUNs at their new location, maintaining access without disruption.


NEW QUESTION # 72
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