A storage administrator is tasked with creating a DR solution for block and file storage resources. The company has multiple regional and international sites containing a mix of physical and virtual Dell EMC Unity systems.
What are considerations for the storage administrator in creating the DR solution?

1. A. Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 msBlock storage resources can be replicated synchronously and asynchronously
2. B. Asynchronous replication ensures zero data loss the remote replica in disaster conditionsBlock storage resources can be replicated synchronously and asynchronously
3. C. Asynchronous replication over long-distance does not impact latencyAsynchronous replication ensures zero data loss to the remote replica in disaster conditions
4. D. Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 msFile and block storage resources can be replicated synchronously and asynchronously

Correct Answer: C

A storage administrator wants to expand the current FAST Cache size from 1.2 TB to the maximum allowed size on a Dell EMC Unity XT 880.
How many drives, and of what type, do they need to add?

1. A. 12 Flash 2 drives of 400 GB each
2. B. 10 Flash 2 drives of 400 GB each
3. C. 24 Flash 2 drives of 400 GB each
4. D. 5 Flash 2 drives of 400 GB each

Correct Answer: A

What is the result of enabling Data Reduction on a LUN in a Consistency Group containing three LUNs?

1. A. All writes to all Consistency Group LUNs will go through the Data Reduction logic
2. B. Any writes to the LUN will go through the Data Reduction logic
3. C. Data Reduction will be enabled on all LUNs is the Consistency Group
4. D. Data Reduction and Advanced Replication will be enabled on all LUNs

Correct Answer: C

A storage administrator performs a monthly performance analysis of a Dell EMC Unity XT storage array using CloudIQ insight reports. Three LUNs are set with a Host IO Limits policy. The administrator discovers that the throughput IOPS on one LUN (Test_LUN) has increased by 1000 IOPS compared to the two previous months.
What is a possible root cause of the spike in IOPS?

1. A. Test_LUN was expanded by 100 GB and a Density-based Host IO limit policy was set for all three LUNs
2. B. Test_LUN was expanded by 100 GB and a Density-based Host IO limit policy was set only for Test_LUN
3. C. Host IO limit of Test_LUN was edited and the limit was increased by 1000 IOPS
4. D. Another Absolute Host IO limit policy with additional 1000 IOPS was set on Test_LUN

Correct Answer: C

How long will a Copy Back operation take when a hot spare is invoked?

1. A. Pro-Active hot spare does not use a Copy Back operation
2. B. Copy Back time depends on the RAID type
3. C. Copy Back time depends on the disk capacity
4. D. Copy Back time depends on the disk type

Correct Answer: B
Note: Starting with Release 24, you can now use a proactive hot spare for proactive disk replacement. Before Release 24 you had to remove the physical disk to replace in order to force a rebuild. During the rebuild phase, the RAID group was "degraded" and at risk.
Resolution:
Three main benefits of using a proactive hot spare: References: https://community.emc.com/docs/DOC-9419