A Review Of Downloadable E20-393 Study Guide

NEW QUESTION 1
What is a function of CloudIQ?

• A. Tier to cloud storage
• B. Provision storage resources
• C. Configure host access
• D. Monitor system health

Answer: D

NEW QUESTION 2
When can a file system be defined as thin or thick?

• A. Only when creating the file system
• B. Any time after the file system has been created
• C. Only when adding host access to the file system
• D. Only when enabling data reduction on the file system

Answer: B

NEW QUESTION 3
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

Answer: A

NEW QUESTION 4
What is a consideration when expanding a dynamic pool?

• A. Maximum number of drives is 16 in a RAID Group
• B. Maximum number of slices in a private LUN is 256
• C. Maximum number of drives is 64 in a drive partnership group
• D. Minimum of drives in a RAID5 (4+1) RAID Group is 5

Answer: C

NEW QUESTION 5
Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?

• A. Create an ESXi host profile
• B. License the system for NFS and SMB support
• C. Add vDisks to the storage appliance
• D. Install license keys for thin provisioning

Answer: C

Explanation:
UNITY VSA STORAGE POOL CREATION
* 1. Under the Storage Pool Section go to Pools. Select the + to start the “Create Pool Wizard”.
* 2. Name the Pool
* 3. Assign a Tier to each Virtual Disk attached to the VSA. You have Extreme, Performance and Capacity.

Etc.
References: https://samshouseblog.com/2016/06/08/unity-vsa-storage-pool-creation/

NEW QUESTION 6
On a Dell EMC Unity system, all hosts can be required to use which authentication method for iSCSI interfaces?

• A. PAP
• B. Kerberos
• C. EAP
• D. CHAP

Answer: D

NEW QUESTION 7
A system administrator has added a new Unity storage array to their environment. The administrator wants to migrate block data from vVNX running in their VMware environment to a UnityVSA. In addition, the administrator needs to migrate the block data from an older CLARiiON storage array to the new Unity storage array.
Which single block migration option will work for both the virtual and hardware storage devices?

• A. SAN Copy Push
• B. VPLEX
• C. Host-Based LVM
• D. RecoverPoint

Answer: A

Explanation:
You move Block storage from a CLARiiON CX or VNX Series storage system to an EMC Unity system.
Note: Clariion (styled CLARiiON) is a discontinued [1] SAN disk array manufactured and sold by EMC Corporation, it occupied the entry-level and mid-range of EMC's SAN disk array products. In 2011, EMC introduced the EMC VNX Series, designed to replace both the Clariion and Celerra products.

NEW QUESTION 8
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

Answer: C

NEW QUESTION 9
How does Dell EMC Unity XT differ from Dell EMC UnityVSA?

• A. Unity XT supports FAST VP onlyUnityVSA supports FAST VP and FAST Cache
• B. Unity XT supports host I/O limits and monitoring and reportingUnityVSA supports monitoring and reporting only
• C. UnityXT supports FAST VP and FAST Cache.UnityVSA supports FAST VP only
• D. UnityXT supports monitoring and reporting onlyUnityVSA supports host I/O limits and monitoring and reporting

Answer: C

NEW QUESTION 10
What is the maximum number of file system snapshots that are supported by Unity?

• A. 16
• B. 96
• C. 256
• D. 512

Answer: C

NEW QUESTION 11
What is the maximum number of Dell EMC Unity arrays that can participate is a Synchronous Replication topology?

• A. 2
• B. 4
• C. 5
• D. 16

Answer: A

NEW QUESTION 12
A Unity system LUN has a daily snapshot schedule with a Retention Policy of seven days. A hardware failure results in a double fault of the LUN.
Which snapshot behavior will be experienced?

• A. All of the snapshots will be unavailable to restore data from
• B. Data restoration is available from the oldest snapshot, all others are unavailable
• C. All of the snapshots will be available to restore data from
• D. Data restoration is available from the newest snapshot, all others are unavailable

Answer: D

Explanation:
The oldest snapshots residing on that pool with retention policy set to pool automatic deletion begin being deleted.

NEW QUESTION 13
For high availability within iSCSI, connections should be attached using what?

• A. Different subnets
• B. Flow control
• C. Twinax cables
• D. Jumbo frames

Answer: A

NEW QUESTION 14
An implementation engineer needs to monitor the SP Boot process. What can they use to establish a Serial over LAN connection?

• A. KVT
• B. puTTY
• C. IPMI
• D. IMT

Answer: C

NEW QUESTION 15
A company needs to expand their dynamic pool by 10 TB. The current dynamic pool consists of sixty-three 7.6 TB SSD drives that are configured for RAID5 12+1.
What is the minimum number of drives needed for the pool expansion?

• A. 1
• B. 2
• C. 13
• D. 15

Answer: B

NEW QUESTION 16
The LUN Snapshot Attach to Host operation is being performed with Read/Write Access selected. By default, what does the Dell EMC Unity system do before beginning the attach process?

• A. Detaches the host from the Snapshot of any other LUN
• B. Creates a Snapshot of the LUN
• C. Detaches existing attached hosts from the LUN Snapshot tree
• D. Creates a copy of the Snapshot

Answer: D

NEW QUESTION 17
Where do the D@RE encryption/decryption functions occur in the Unity storage system?

• A. Host I/O Modules
• B. Storage Processor Cache
• C. SAS I/O Module
• D. Self-encrypting drives

Answer: C

Explanation:
Upon installation and activation of the feature, the following keys are generated by
RSA BSAFE and persisted to the Lockbox:
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.

NEW QUESTION 18
What functionality is provided to Unity from its integration with CTA?

• A. DHSM data mobility to cloud destination on Virtustream
• B. Synchronous disaster recovery solution for Unity file storage
• C. Data migration solution for VNX block storage to Unity
• D. Unity configured as a destination for tiered DHSM data

Answer: D

Explanation:
References: https://www.emc.com/collateral/white-papers/h16376-dell-emc-unity-cloud-tiering-appliance.pdf

NEW QUESTION 19
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