Important NetApp NS0-521 Exam Questions

Answer: C

Explanation:

In a two-node NetApp AFF ASA cluster, the recommended minimum number of paths for a SAN environment from the client host perspective is 4. This configuration ensures high availability and load balancing, which are critical for maintaining performance and resilience in a SAN environment. Each host should have at least two paths to each controller to achieve this setup.

For more detailed information, you can refer to:

NetApp SAN Configuration

NetApp All-Flash SAN Array Documentation

Answer: C, D

Explanation:

To ensure that Snapshot copies of database files across multiple FCP LUNs are taken at the same point in time, the following configurations can be used:

Create a consistency group that uses FlexVol volumes: This setup ensures that snapshots of all volumes in the consistency group are taken simultaneously.

Create each LUN within the same FlexGroup volume: This configuration allows for a unified snapshot across multiple LUNs within the FlexGroup, ensuring data consistency.

For more details, see:

NetApp Documentation on Consistency Groups

NetApp FlexGroup Overview

Answer: B

Explanation:

To verify the cabling of a four-node NetApp ONTAP SAN cluster after installation, the recommended tool is Active IQ Config Advisor. This tool provides detailed checks for proper configuration, including cabling verification, and helps ensure that best practices are followed for optimal performance and reliability.

For further details, see:

NetApp Active IQ Config Advisor

Answer: B

Explanation:

To create a consistent Snapshot copy of a LUN without disruptions, it is necessary to quiesce I/O to the LUN. This process involves pausing or temporarily stopping the input/output operations to ensure that the data is in a consistent state when the snapshot is taken. This method is crucial for maintaining data integrity and consistency in the snapshot.

For further details, refer to:

NetApp Documentation on Snapshot Consistency

NetApp Best Practices for Snapshot Management

Answer: C, D

Explanation:

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