NetApp NS0-521 Exam Practice Test Instant Access

Question 1

Which two NetApp features provide synchronous data replication between two sites for SAN workloads with automatic failover in case of a site disaster? (Choose two.)

ASnapMirror active sync

BSnapMirror SVM

CSnapMirror Synchronous

DMetroCluster IP

Answer : C, D

For synchronous data replication between two sites with automatic failover in case of a site disaster for SAN workloads, the two NetApp features that provide these capabilities are SnapMirror Synchronous and MetroCluster IP.

SnapMirror Synchronous: This feature provides volume-granular, synchronous replication with zero RPO (Recovery Point Objective), ensuring that data is mirrored in real-time to a secondary site. This setup supports automatic failover, maintaining data availability even during site failures

MetroCluster IP: This solution provides synchronous replication and combines high availability and disaster recovery capabilities. MetroCluster IP uses IP networking to extend the distance over which replication can occur and supports automatic failover and failback, making it suitable for critical SAN workloads

Question 2

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

AResync the relationship.

BRelease the relationship.

CDelete the relationship.

DInitialize the relationship.

Answer : B, C

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).

Question 3

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?

Avserver iscsi security create

Bigroup initiator modify

Csecurity certificate create

Dsecurity login create

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 4

An administrator finishes an installation of a new NetApp ASA system at the customer site and creates a new LUN. The customer wants to restrict the access of the LUN to specific UFs.

Where would the administrator configure this?

AZoning

Bigroup

CSelective LUN Map

DPortset

Answer : B

To restrict access to a newly created LUN to specific hosts, the administrator should configure the igroup (initiator group). An igroup is used to control which initiators (hosts) are allowed to access specific LUNs. This ensures that only authorized hosts can access the storage, enhancing security and access control.

For more details, refer to:

NetApp Documentation on iGroups (NetApp).

Question 5

What Is a recommended setting for using the NetApp ONTAP LUN fractional reserve?

ALUN space reservation is disabled.

BSpace allocation is set to enable.

CSpace guarantee is set to volume.

DVolume Snapshot copy automatic deletion is disabled.

Answer : C

The recommended setting for using the NetApp ONTAP LUN fractional reserve is to set the space guarantee to 'volume'. This setting ensures that the required space for overwrites in the volume is reserved, preventing potential write failures when snapshot copies are created. This setup helps in maintaining the performance and reliability of the storage system by ensuring there is always enough space allocated for the LUN.

For further details, you can refer to:

NetApp Community Discussion on Fractional Reserve

NetApp Documentation on Space Management

Question 6

When using tagged VLANs on Cisco Nexus switches for NVMe over TCP, which two changes must be made to enable jumbo frames? (Choose two.)

AModify the Cisco Nexus switches to use an MTU of 9216.

BModify the appropriate broadcast domain in NetApp ONTAP software to use an MTU of 9000.

CModify the appropriate broadcast domain in NetApp ONTAP software to use an MTU of 9216.

DModify the Cisco Nexus switches to use an MTU of 9000.

Answer : A, C

For enabling jumbo frames on Cisco Nexus switches for NVMe over TCP with tagged VLANs, the following changes are required:

Modify the Cisco Nexus switches to use an MTU of 9216: Setting the MTU to 9216 ensures that the network can handle jumbo frames, reducing the number of packets needed for large data transfers and thus improving performance.

Modify the appropriate broadcast domain in NetApp ONTAP software to use an MTU of 9216: This setting must match the network configuration to ensure end-to-end support for jumbo frames, which is essential for optimizing performance in NVMe over TCP environments.

For additional information, refer to:

NetApp Documentation on NVMe over TCP

Cisco Documentation on Jumbo Frames

Question 7

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

AUnmaptheLUN.

BDelete the volume snapshots.

CPurge the recovery queue.

DPerform space reclamation.

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

NetApp NS0-521 Implementation Engineer - SAN ONTAP Exam Practice Test