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Latest D-PWF-DY-A-00 Exam Practice Questions

The practice questions for D-PWF-DY-A-00 exam was last updated on 2025-09-15 .

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Question#1

After adding a new SDS node to an existing storage pool, you performed a data rebalance operation, but found that the data of some volumes is still concentrated on the original node.
What is the possible reason?

A. The new node has a smaller disk capacity than the original node, so no rebalancing is performed.

B. The current rebalancing strategy is based on idle nodes first, but the new SDS node is marked as "excluded"

C. The volume's RAID policy is striping, and redistribution cannot be performed on existing data

D. Rebalancing will migrate based on the actual I/O hotspot. If the volume I/O load is low, the migration amount will be small.

Explanation:
PowerFlex will consider factors such as load, capacity, and performance when rebalancing. If some volumes have low access volume or no obvious hot spots, it will not actively migrate a large amount of data.

Question#2

In a PowerFlex system, a large number of concurrent small file write operations caused application response delays. There was no CPU or disk saturation at the system level, and the network was normal.
What is the most likely cause?

A. SDS nodes use non-persistent SSD cache

B. SDC scheduling policy is set to Round Robin

C. MDM runs on a management node with poor performance

D. The write coalescing mechanism is not enabled, resulting in too many metadata operations

Explanation:
Small file operations tend to generate a large number of metadata updates. If the write path is not optimized, such as by using merge write mechanisms, performance will be degraded.

Question#3

A PowerFlex cluster is deployed across two data centers, and the customer wants the data to remain consistent and accessible even if one site fails.
Which of the following features best meets this requirement?

A. Asynchronous remote replication

B. Multi-node MDM cross-domain deployment + multi-copy strategy

C. SDS is configured in RAID 1 mode

D. Use different Manager instances to manage volumes across domains

Explanation:
Through MDM high availability design + cross-domain SDS deployment + multi-copy storage strategy, a high availability architecture can be achieved to maintain service capabilities when a data center fails.

Question#4

A database application requires consistent snapshots when writing across multiple volumes in PowerFlex.
Which of the following methods can meet this requirement?

A. Create snapshots for each volume in the Manager interface and manually ensure that the time points are consistent.

B. Use a Consistency Group to trigger snapshots for all volumes in the group simultaneously

C. After enabling automatic load balancing, the system will automatically maintain consistency between volumes

D. Merge all volumes into one large volume and take a unified snapshot

Explanation:
Consistency Group allows multiple volumes in the same group to perform consistent snapshots at the same time point to meet the database write consistency requirements.

Question#5

When deploying a new PowerFlex cluster, what is the most logical order to deploy the following components?

A. SDC → SDS → MDM → Manager

B. MDM → SDS → SDC → Manager

C. Manager → MDM → SDS → SDC

D. MDM → Manager → SDS → SDC

Explanation:
MDM provides core metadata services and is the first step in system construction; Manager is used to deploy and configure components such as SDS and SDC.

Exam Code: D-PWF-DY-A-00Q & A: 50 Q&AsUpdated: 2025-09-15

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