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NCIE-Data Protection
NS0-528
Implementation Engineer - Data Protection Exam Questions and Answers

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Questions # 11:

You have set up a SnapMirror relationship between volumes in ClusterA and ClusterB. Both the clusters have the same NetApp ONTAP software release and platform. You have enabled Temperature Sensitive Storage Efficiency (TSSE) on the source volume.

How does TSSE affect the efficiency on the destination volume?

Options:

TSSE settings are inherited by SnapMirror destination volumes by default.

TSSE cannot be enabled for volumes in a SnapMirror relationship.

TSSE must be manually configured on the destination volumes, otherwise the SnapMirror transfers will fail.

TSSE settings are inherited by SnapMirror destination volumes only if the destination volume is less than 50% full.

Answer

Explanation

When Temperature Sensitive Storage Efficiency (TSSE) is enabled on a SnapMirror source volume, the settings are automatically inherited by the destination volume during SnapMirror initialization. This ensures consistent storage efficiency behavior across the replication relationship.

Questions # 12:

An administrator needs to maintain 10 snapshots per volume on a NetApp AFF system and replicate to a destination with a snapshot retention of 120.

Which NetApp feature should the administrator use?

Options:

SnapMirror active sync

XCP

MetroCluster

SnapMirror

Answer

Explanation

SnapMirror supports asymmetric snapshot retention, allowing the source volume (on the AFF system) to retain 10 snapshots while the destination retains up to 120 snapshots. This is useful for long-term retention or compliance at the destination without consuming extra capacity on the source.

Questions # 13:

You need to protect an entire SVM and all of its data volumes and have decided to use SnapMirror SVM. The DR cluster uses a different subnet from the production cluster, and the destination SVM has the added requirement of also being online and serving data as read-only.

What option would you set to achieve both goals?

Options:

Set the -type option to automated-failover in the applied snapmirror policy.

Use the -identity-preserve option set to false in the snapmirror create command.

Set the -discard-configs option to network in the applied snapmirror policy.

Use the -identity-preserve option set to true in the snapmirror create command.

Answer

Explanation

Setting-identity-preserve falseallows the destination SVM to have a different network configuration, which is required since the DR site uses a different subnet. It also enables the destination SVM to be online and serve data in read-only mode, which meets the requirement for data availability during normal operation without promoting the SVM.

Questions # 14:

You are at a customer site and assisting with testing a sudden site disaster scenario with their MetroCluster solution. All the equipment at the production site is suddenly powered off, and the commandmetrocluster switchover -forced-on-disaster trueis issued. After the switchover to the disaster site is complete, the customer notices that one of their database applications is offline. All other data is accessible from the disaster site. You notice the following in thevolume showoutput:

Question # 14

What can you do to help bring the application online while in switchover?

Options:

Advise the customer to reboot their application server.

Increase the available space using the volume size command.

Modify the -in-nvfailed-state option using the volume modify command.

Reboot the NetApp nodes with the -ignore-strict-sync-warnings true option.

Answer

Explanation

The in-nvfailed-state: true indicates that the volume is in Nonvolatile RAM (NVRAM) failed state, which happens when write operations could not be committed properly during a disaster event. This causes the volume to go into a read-only protected mode to avoid data corruption.

To restore access, you must manually override this state with:

volume modify -vserver SVM1-mc -volume APP02_DB -in-nvfailed-state false

This will bring the volume out of failed state and allow the database application to function again during the switchover.

Questions # 15:

An administrator wants to automatically prevent volumes that are used in a SnapMirror relationship from running out of space.

Which of the following volume snapshot autodelete modify parameters would ensure that this goal can be accomplished?

Options:

-defer-delete scheduled

-commitment disrupt

-commitment try

-defer-delete user_created

Answer

Explanation

Setting-commitment tryon thevolume snapshot autodelete modifycommand allows ONTAP to automatically delete eligible Snapshot copies when a volume is running low on space, but only if it can do so without violating SnapMirror or retention policies. This ensures volumes in SnapMirror relationships stay healthy and do not run out of space unexpectedly.

Questions # 16:

You are setting up replication between a primary site that has a six-node NetApp cluster and a secondary site that has a two-node NetApp cluster.

What is the minimum number of required Intercluster LIFs?

Options:

The primary site requires one, and the secondary site requires one.

The primary site requires six, and the secondary site requires two.

The primary site requires two, and the secondary site requires two.

The primary site requires twelve, and the secondary site requires four.

Answer

Explanation

Each node in a NetApp cluster must have at least one Intercluster LIF to participate in SnapMirror replication. Therefore, for a six-node cluster (primary), you need six LIFs, and for a two-node cluster (secondary), you need two LIFs — one per node.

Questions # 17:

A customer is using SnapLock Compliance to protect a specific subset of data. The customer wants to have granular control of which documents are locked, when they are locked, and when the retention period is applied.

Which two actions should be done? (Choose two.)

Options:

Change the minimum retention period.

Set the default retention period to unspecified.

Confirm that autocommit is disabled.

Commit the files manually.

Answer

B, D

Explanation

To achieve granular control over SnapLock Compliance behavior:

1. Set the default retention period to "unspecified", so files are not automatically locked.

2. Disable autocommit and instead manually commit only the specific files that should be locked, allowing precise control over what is protected and when retention starts.

Questions # 18:

Your customer wants to use tamper-proof Snapshot copies on a SnapMirror destination volume only.

You successfully created a SnapMirror relationship using a SnapMirror policy that contains the following rules:

Question # 18

After initializing, you are able to delete a daily Snapshot copy.

Which command did you need to modify to enable the tamper-proof Snapshot copies as specified in the policy?

Options:

volume modify -snapshot-locking-enabled

volume snaplock modify -privileged-delete

vserver modify -snapshot-policy

volume snapshot modify -expiry-time

Answer

Explanation

Although the SnapMirror policy includes rules for retaining Snapshot copies, the ability to make them tamper-proof (i.e., locked) depends on enabling snapshot locking on the destination volume. You must explicitly run:

volume modify -volume -snapshot-locking-enabled true

Without this setting, SnapMirror-created Snapshot copies can still be deleted manually. Enabling snapshot-locking ensures that retention rules (like the 5-day daily rule in your policy) are enforced and Snapshots are immutable.

Questions # 19:

An administrator performed a SnapMirror failover and tailback of several individual volumes from production and DR. After fallback to production, there are orphaned Snapshot copies, and the SnapMirror relationship from the DR to production is still in place from the prior fallback procedure.

Which snapmirror command cleans up the relationships and Snapshot copies?

Options:

release

resync

break

quiesce

Answer

Explanation

Thesnapmirror releasecommand is used to remove SnapMirror relationships from the source cluster's perspective and delete orphaned Snapshot copies that were created for the SnapMirror relationship. This is the correct cleanup step after failback and ensures no leftover replication metadata remains.

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