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  1. Home
  2. EMC Certification
  3. D-MSS-DS-23 Exam
  4. EMC.D-MSS-DS-23.v2024-11-25.q112 Dumps
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Question 46

What result is obtained by multiplying the VM count by the Capacity per VM in a PowerStore system?

Correct Answer: A
In a PowerStore system, multiplying the VM count by the Capacity per VM gives the UsableCapacity. Usable Capacity represents the actual storage capacity available for use by the virtual machines, taking into account any overheads, data protection mechanisms, and efficiency features such as deduplication and compression.
Reference:Dell PowerStore Capacity Planning Guide
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Question 47

A company has a Dell Unity XT 880 at its Boston site providing file storage for a business production application. The company has a second remote site 8 km (5 mi) away in Cambridge. A third site is in New York (342 km (213 mi) from the Boston site). How can the same production data be protected against system outage with a zero RPO and a maximum of 15 minutes RPO data recovery?

Correct Answer: A
* Dell Unity XT offers both synchronous and asynchronous replication to protect data and ensure business continuity.
* Synchronous replication is used for zero RPO, ensuring no data loss, but it is typically limited to shorter distances due to latency concerns.
* Asynchronous replication is suitable for longer distances and provides near real-time data protection with a minimal RPO.
* Distance Considerations:
* The distance between Boston and Cambridge (8 km) is suitable for synchronous replication, providing zero RPO.
* The distance between Boston and New York (342 km) is better suited for asynchronous replication due to latency, ensuring data recovery with a minimal RPO, such as 15 minutes.
* Optimal Replication Strategy:
* Synchronous replication from Boston to Cambridge ensures zero RPO for critical data protection.
* Asynchronous replication from Boston to New York provides additional data protection with a
15-minute RPO, suitable for longer-distance disaster recovery.
* Dell Midrange Storage References:
* Dell Unity XT documentation and best practices provide detailed guidelines on configuring synchronous and asynchronous replication.
* Community forums and support resources from Dell Technologies offer insights into real-world implementation strategies.
References:
* Dell Unity XT Replication Guide
* Dell Community on Data Protection
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Question 48

An application owner needs 10 volumes for their application to be created, and they must have snapshots taken simultaneously with write-order-consistency. Which feature in Dell PowerStore should be used to enable this requirement?

Correct Answer: D
* Understanding Write-Order-Consistency:
* Write-order-consistency ensures that all writes are completed in a specific order to maintain data integrity, particularly important for applications that rely on consistent data states across multiple volumes.
* Consistency Groups in PowerStore:
* Consistency Groups in Dell PowerStore allow multiple volumes to be managed together as a single entity.
* When snapshots are taken of a Consistency Group, all member volumes are captured simultaneously with write-order-consistency, ensuring data integrity across the group.
* Other Options:
* Volume Groups: Typically used to group volumes for management purposes but do not ensure write-order-consistency for snapshots.
* Snapshot Groups: Focus on managing snapshots but without the guaranteed consistency across multiple volumes.
* Data Groups: Not a feature in Dell PowerStore specific to this requirement.
* Dell Midrange Storage References:
* Dell PowerStore documentation provides detailed guidelines on using Consistency Groups for applications requiring write-order-consistent snapshots.
* Additional resources from Dell Technologies' support and community forums further validate this feature.
References:
* Dell PowerStore Consistency Groups
* Dell Community on PowerStore Features
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Question 49

A customer has a Dell Unity XT 380F system with a single pool that is built from 24x 800 GB and
24x 1 6 TB SAS Rash 3 drives and 14x 400 SAS Flash 2 drives.
How many drive partnership groups were used to build the dynamic pool?

Correct Answer: B
In Dell Unity XT storage systems, a dynamic pool is built using drive partnership groups. A drive partnership group is a group of drives that are combined to create a pool. A drive partnership group can be made up of SAS, NL-SAS, or Flash drives. In this case, the customer has a single pool built from 24x 800 GB SAS Rash 3 drives and 24x 1 6 TB SAS Rash 3 drives, and 14x 400 SAS Flash 2 drives. All drives are SAS type, and it's only one partnership group.
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Question 50

What is a characteristic of tenant traffic on a Dell EMC Unity array?

Correct Answer: B
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