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E20-393 PDF DEMO:
QUESTION NO: 1
What is the maximum number of LUN snapshots that are supported by Unity?
A. 512
B. 256
C. 96
D. 16
Answer: B
Explanation:
Note: Logical Unit Number (LUN) - A block-level storage device that can be accessed using a protocol such as iSCSI.
QUESTION NO: 2
Which UnityVSA storage resource can be configured with Host I/O limits?
A. NAS Server
B. LUN
C. Pool
D. File System
Answer: B
Explanation:
Host I/O limits is a feature which allows the user to control the amount of throughput and bandwidth consumed by block resources.
This feature can be applied to LUNs, VMFS datastores, or attached snapshots.
QUESTION NO: 3
A file system is 1 TB in size and contains 250 GB of dat
a. The file system is not fully allocated and only 450 GB of pool storage is in use. The user wants to reduce the file system to 300 GB.
How much space is returned to the storage pool?
A. 150 GB
B. 750 GB
C. 450 GB
D. 700 GB
Answer: A
QUESTION NO: 4
Which technology is used by Unity Snapshots?
A. Inline Deduplication
B. Copy on First Write
C. Redirect on Write
D. Block Compression
Answer: C
Explanation:
The technology used for snapshots of both block and file resources in Unity is called redirect on write
.
QUESTION NO: 5
What is the result of enabling Data Reduction on a LUN in a Consistency Group containing three LUNs?
A. All writes to all Consistency Group LUNs will go through the Data Reduction logic
B. Data Reduction will be enabled on all LUNs is the Consistency Group
C. Any writes to the LUN will go through the Data Reduction logic
D. Data Reduction and Advanced Replication will be enabled on all LUNs
Answer: B
Reference:
https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h16870- dell_emc_unity-data_reduction.pdf
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Updated: May 27, 2022