Free NetApp NS0-521 Exam Actual Questions

The questions for NS0-521 were last updated On Dec 19, 2024

Question No. 1

After deleting a LUN, an administrator notices that the space does not show as available. What needs to be done to reclaim the space?

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Correct Answer: D

After deleting a LUN, if the space does not show as available, performing space reclamation is necessary. Space reclamation involves identifying and reclaiming unused space on the storage system, making it available for new data. This process ensures that the deleted LUN's space is properly freed up and reflected in the available storage capacity.

For more details, refer to:

NetApp Documentation on Space Reclamation

NetApp Community on Free Space Reclamation


Question No. 2

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.)

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Correct Answer: A, D

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


Question No. 3

A storage administrator has just completed an ISCSI implementation in a customer environment running VMware and needs to validate that the entire network path supports jumbo frames.

Which action should be taken?

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Correct Answer: A

To validate that the entire network path supports jumbo frames after an iSCSI implementation, you should perform a ping test from the host with fragmentation. This involves using the ping command with specific options to test jumbo frame support:

ping -M do -s 8972 <target_IP>

In this command:

-M do ensures the packets are not fragmented.

-s 8972 sets the packet size to 8972 bytes (9000 bytes MTU minus 28 bytes for the ICMP header).

By confirming that the large packets are successfully transmitted without fragmentation, you can validate that the network path, including switches and adapters, supports jumbo frames.

For more details, you can check:

NetApp Documentation - iSCSI Configuration and Best Practices (NetApp) (NetApp).


Question No. 4

A customer wants to enable CHAP authentication on their iSCSI sessions.

Which command should be used to set up the appropriate security policies and passwords?

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Correct Answer: A

To enable CHAP (Challenge-Handshake Authentication Protocol) authentication on iSCSI sessions, the command vserver iscsi security create should be used. This command sets up the necessary security policies and passwords required for CHAP authentication, ensuring secure access to iSCSI targets.

For more details, refer to:

NetApp Documentation on iSCSI Configuration (NetApp).


Question No. 5

An administrator is setting up a NetApp ONTAP AFF system for both NVMe/TCP and iSCSI. Which task is required for SAN configuration?

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Correct Answer: C

When setting up a NetApp ONTAP AFF system for both NVMe/TCP and iSCSI, a critical task required for SAN configuration is to configure Logical Interfaces (LIFs). LIFs are necessary for network connectivity and are used by both NVMe/TCP and iSCSI protocols to communicate between the storage system and the host.

The configuration of LIFs involves creating and managing these interfaces to ensure they are correctly mapped and available for use by the respective protocols. This step is essential for the SAN setup to function properly.

For more detailed steps on configuring LIFs, you can refer to NetApp's documentation:

How to Configure NVMe/TCP with ONTAP (NetApp Community).

SAN Configuration with ONTAP (NetApp).