EMC EMC Certifications E20-393 Questions & Answers

• Question 21:

  Using the fan-out topology, what is the maximum number of sites a resource can be replicated to asynchronously?

  A. 2

  B. 4

  C. 6

  D. 8

  Correct Answer: B

  Reference: https://www.dellemc.com/en-us/collaterals/unauth/white-papers/products/storage/h15088-dell-emc-unity-replication-technologies.pdf

• Question 22:

  How does Dell EMC Unity XT differ from Dell EMC UnityVSA?

  A. Unity XT supports asynchronous replication only. UnityVSA supports both synchronous and asynchronous replication.

  B. Unity XT supports synchronous replication over Fibre Channel. UnityVSA supports synchronous replication over GigE.

  C. Unity XT supports synchronous replication over GigE. UnityVSA supports synchronous replication over Fibre Channel.

  D. Unity XT supports both synchronous and asynchronous replication. UnityVSA supports asynchronous replication only.

  Correct Answer: D

• Question 23:

  Refer to the exhibit.

  

  Which ports are used to connect DAEs to a Unity XT storage array?

  A. 1

  B. 2

  C. 3

  D. 4

  Correct Answer: B

• Question 24:

  A Windows test server ran a stress test program that generated a large amount of throughput. This resulted in performance slowdowns on production hosts sharing the same VMFS datastore. What Dell EMC Unity XT feature can the storage administrator use to prevent a re-occurrence of this problem?

  A. Data Reduction

  B. FAST Cache

  C. File System Quotas

  D. Host I/O Limits

  Correct Answer: C

• Question 25:

  What is a benefit of using VVols?

  A. All VMs on a datastore are snapped simultaneously

  B. Enables backup of Dell EMC Unity file data to a tape library unit

  C. Individual VMs on a datastore can be snapped

  D. Enables the assignment of isolated, file storage partitions

  Correct Answer: A

  Reference: https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/virtualvolumes/vmware-virtual-volumes-faq.pdf

• Question 26:

  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?

  A. 12 Flash 2 drives of 400 GB each

  B. 10 Flash 2 drives of 400 GB each

  C. 24 Flash 2 drives of 400 GB each

  D. 5 Flash 2 drives of 400 GB each

  Correct Answer: A

• Question 27:

  A user observes a system alert that indicates an error has occurred that the user should be aware of, but does not have significant impact on the system. Which severity level is this alert?

  A. Error

  B. Warning

  C. Information

  D. Notice

  Correct Answer: B

  Reference: https://www.dellemc.com/fr-ma/collaterals/unauth/technical-guides-support-information/products/storage/docu86751.pdf

• Question 28:

  Which Dell EMC Unity XT feature(s) supports deduplicated blocks?

  A. VVols

  B. Snapshots only

  C. Snapshots and Thin Clones

  D. Thin Clones only

  Correct Answer: C

• Question 29:

  A storage administrator has configured an SMB share with the Pool Automatic Deletion retention policy. With default settings applied, what will happen when the pool crosses 95%?

  A. The Dell EMC Unity system will only delete the oldest snapshot of the configured schedule.

  B. Nothing. The default setting is that no snapshots will be deleted automatically.

  C. The Dell EMC Unity system will delete snapshots until 85%, pool space is reached.

  D. Nothing. When the snapshot reaches 25% of the pool size, snapshots will be deleted until 20% of the pool size is reached.

  Correct Answer: C

• Question 30:

  Which Dell EMC Unity XT models support Dynamic Pools?

  A. Dell EMC UnityVSA storage only

  B. 380F, 480F, 680F, and 880F

  C. 380F, 480, 680F, and 880

  D. 380, 480, 680, and 880

  Correct Answer: B

  Reference: https://www.dellemc.com/en-au/collaterals/unauth/technical-guides-support-information/products/storage/docu69895.pdf