Dell EMC Exam D-RP-OE-A-24 Topic 1 Question 28 Discussion

Actual exam question for Dell EMC's D-RP-OE-A-24 exam

Question #: 28
Topic #: 1

When using a Distributed Consistency Group, additional traffic is generated between the primary RPA and secondary RPAs. Where is this increase in traffic observed?

AAdditional traffic is seen on the FC links between the RPAs

BAdditional traffic is seen on the WAN network between the RPAs

CAdditional traffic is seen on the management network between the RPAs

DNo additional traffic will be observed because host writes are multicast to all appliances in a cluster

Show Suggested Answer

Suggested Answer: B

In a Distributed Consistency Group (DCG) configuration, the primary RPA and secondary RPAs work together to manage a larger data throughput than a single RPA can handle. This is achieved by dividing the workload among multiple RPAs. As a result, there is an increase in traffic observed on the WAN network between the RPAs. This is because the data that is being replicated needs to be transferred over the WAN to ensure that all RPAs have the necessary information to maintain consistency and data protection1.

The process involves:

The primary RPA receives write I/Os from the production environment.

The primary RPA then distributes the data to the secondary RPAs over the WAN.

The secondary RPAs process the data and replicate it to their respective Journal volumes.

This distribution of workload allows the DCG to handle higher throughput and IOPS rates than a single RPA could manage1.

It's important to note that while there is additional traffic on the WAN, this does not necessarily mean that the FC (Fibre Channel) links or management network are unaffected. However, the most significant increase in traffic is observed on the WAN network, which is the communication link between the RPAs in a DCG configuration1.

by Alecia at Jul 11, 2025, 11:25 PM

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Penney

16 hours ago

Hmm, I'm torn between B and C. The management network could see increased traffic for coordination, but the WAN is the obvious choice. 50/50 on this one.

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Hollis

4 days ago

Wait, wait, wait... if the writes are multicast, does that mean the RPAs are all on the same network? In that case, D must be the right answer. This exam is testing my sanity!

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Terrilyn

5 days ago

Option B seems logical to me. The distributed consistency group would require data replication across the WAN, so the additional traffic should be observed there.

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Angelyn

6 days ago

I think the increase in traffic is observed on the WAN network between the RPAs.

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