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EMC Unity Solutions Specialist Exam for Implementation Engineers E20-393 Dumps in PDF

Free EMC E20-393 Real Questions (page: 11)

E20-393 PDF — 297 Questions

Where do the D@RE encryption/decryption functions occur in the Unity storage system?

  1. Host I/O Modules
  2. Storage Processor Cache
  3. SAS I/O Module
  4. Self-encrypting drives

Answer(s): C

Explanation:

Upon installation and activation of the feature, the following keys are generated by RSA BSAFE and persisted to the Lockbox:
-KEK Wrapping Key (KWK)
-Data Encryption Keys (DEKs) for all bound drives

A new KEK is generated each time the array boots. The KEK is wrapped with the KWK and passed to the SAS controller during the system boot process. Using the persisted KWK, the SAS controller can decrypt the KEK.

Incorrect Answers:
D: Self-Encrypting Drive (SED) technology is another variation of D@RE which is widely used and offers similar functionality as CBE. However, with SEDs, you have to pay a premium on every drive and only certain drives are offered in SED form.


Reference:

https://www.emc.com/collateral/white-paper/h13296-dare-wp.pdf (page 8)



Based on the exhibit, which port can provide either Fibre Channel or Ethernet connectivity for host access?

  1. A
  2. B
  3. C
  4. D

Answer(s): D

Explanation:

Example:


Reference:

http://www.slideshare.net/USSCru/emc-unity-vnxvnx2-emc



A system administrator is browsing their local management station for a Unity license file. Which file extension is used for Unity license files?

  1. .lic
  2. .rsa
  3. .lin
  4. .cer

Answer(s): A

Explanation:

You need to obtain the license file (.lic) from the EMC license management web site.


Reference:

https://www.emc.com/techpubs/vipr/license_vipr-1.htm



A storage administrator wants to add as asynchronous replication session to a pair of Unity systems with an existing synchronous replication session that is operating correctly. Which configuration steps are needed?

  1. Create Replication interfaces on both systems.
    Modify the Replication Connection Mode.
    Run a Replication Connection Verify and Update operation.
  2. Create Replication Interfaces on the source system.
    Modify the Mode for Replication Connection.
    Perform a manual Sync operation on the Asynchronous session.
  3. Create Replication Interfaces on destination system.
    Establish FC connectivity using the Synchronous FC Ports of each system.
    Perform a manual Sync operation on the Asynchronous session.
  4. Create Replication Interfaces on both systems.
    Establish FC connectivity using the Synchronous FC Ports of each system.
    Run a Verify and Update operation for the Replication Connection

Answer(s): A

Explanation:

To fully configure asynchronous replication between systems, you must do each of following: Configure connectivity for the replication interfaces used by asynchronous replication
- Configure the replication connection between systems
- Configure replication sessions between systems

Note: To fully configure synchronous replication, you must complete each of following:
-Configure connectivity for the synchronous replication interfaces
-Create the synchronous replication management ports
-Configure the replication connection between systems
-Configure replication sessions between systems
-



Which Unity feature benefits oracle OLTP environments by improving storage utilization?

  1. 4 block formatting
  2. Increased SP Cache size
  3. Automatic storage tiering
  4. VVOLS

Answer(s): C

Explanation:

UnityVSA supports the Fully Automated Storage Tiering for Virtual Pool (FAST VP) feature for both block and file data.
FAST VP optimizes storage utilization by automatically moving data between and within the storage tiers.


Reference:

https://www.emc.com/collateral/TechnicalDocument/docu69316.pdf (page 11)



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