NS0-521 Prüfungsfragen, NS0-521 Fragen und Antworten, Implementation Engineer - SAN ONTAP Exam

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Network Appliance NS0-521 Exam Syllabus Topics:

Section	Weight	Objectives
ONTAP SAN Configuration	22%	- Initiator groups configuration - Port sets and interface groups - Selective LUN Map (SLM) - LUN creation and management
SAN Backup and Data Protection	8%	- SnapMirror for SAN - SnapVault configuration - Backup strategies for LUNs
Fibre Channel Configuration	18%	- FC adapter setup and zoning - FCP alias configuration - Brocade and Cisco switch configuration - FCoE configuration
iSCSI Configuration	18%	- Security and access controls - iSCSI service management - Discovery and authentication - iSCSI initiator configuration
SAN Management	18%	- LUN space reservation and cloning - LUN move and copy operations - Storage quality of service - Monitoring and troubleshooting
SAN Fundamentals	8%	- FC and iSCSI protocols overview - SAN architecture and components - SAN terminology and concepts
SAN Migration	8%	- Data transfer considerations - Volume move for SAN workloads - LUN migration procedures

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NS0-521 Prüfungsinformationen, NS0-521 Lernressourcen

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Network Appliance Implementation Engineer - SAN ONTAP Exam NS0-521 Prüfungsfragen mit Lösungen (Q85-Q90):

85. Frage
An engineer Is implementing a data migration scenario for a customer who has multiple FC LUNs across multiple third-party SAN arrays. The engineer wants to use Foreign LUN Import (FLI) for the migration.
What is a requirement on the destination NetApp ONTAP cluster for FLI?

A. A valid SnapMirror license
B. At least one FC port in initiator mode
C. At least one FC port in target mode
D. A valid NetApp XCP license

Antwort: C

Begründung:
When using Foreign LUN Import (FLI) for migrating LUNs from third-party SAN arrays to a NetApp ONTAP system, one of the requirements is to have at least one Fibre Channel (FC) port configured in target mode on the destination NetApp ONTAP cluster. This configuration is necessary to facilitate the migration process as the target mode port will accept and manage incoming data from the source SAN arrays.
For additional details, refer to:
* NetApp Documentation on FLI

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

A. Purge the recovery queue.
B. Perform space reclamation.
C. Unmap the LUN.
D. Delete the volume snapshots.

Antwort: B

Begründung:
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.

87. Frage
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?

A. Ping from the host without fragmentation.
B. Ping from the host with fragmentation.
C. Check the broadcast domain settings.
D. Check the VMkernel adapter settings.

Antwort: B

Begründung:
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).

88. Frage
An administrator has a 2-node NetApp ONTAP cluster that is hosting FC LUNs for 90 SAN hosts.
The hosts are experiencing occasional performance problems and receiving QFULL responses from the cluster nodes. Which action would resolve this issue?

A. Configure additional FC ports on the hosts.
B. Configure additional FC target ports.
C. Increase the queue depth on the initiator ports.
D. Increase the queue depth on the target ports.

Antwort: B

Begründung:
Adding more FC target ports on the ONTAP cluster nodes increases available queue resources and paths, reducing queue full (QFULL) responses and improving SAN host performance.

89. Frage
Which two steps must be taken first to restore a LUN from a SnapMirror Synchronous destination? (Choose two.)

A. Resync the relationship.
B. Release the relationship.
C. Initialize the relationship.
D. Delete the relationship.

Antwort: B,D

Begründung:
To restore a LUN from a SnapMirror Synchronous destination, the following steps must be taken:
* Release the relationship: This step is necessary to break the SnapMirror relationship, allowing the LUN to be restored independently.
* Delete the relationship: After releasing the relationship, deleting it ensures that there are no residual dependencies or configurations that might interfere with the restore process.
For more information, refer to:
* NetApp Documentation on SnapMirror Synchronous (NetApp) (NetApp).

90. Frage
......

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