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E20-393 EMC Unity Solutions Specialist Exam for Implementation Engineers Free Practice Exam Questions (2025 Updated)

Prepare effectively for your EMC E20-393 Unity Solutions Specialist Exam for Implementation Engineers certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 297 questions

What technology is used by Dell EMC Unity Snapshots?

A.

Copy on First Write, which requires a storage resource reserved to hold original data that changed to preserve the point-in-time view.

B.

Redirect on White, which requires no storage resource to create a Snapshot, writes are redirected on parent pool.

C.

Copy on First Write, which requires no storage resource is needed to create a Snapshot, writes are copied pool.

D.

redirect on Write, which requires a storage reserved to hold original data that changed to preserve the point-in-time view.

Which Dell EMC Unity service task would most quickly resolve connection problems between the storage system and Unisphere?

A.

Reinitialize the Storage System

B.

Reimage the Storage Processors

C.

Reboot the Storage Processors

D.

restart the Management Software

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

How is encryption set for a Unity storage system?

A.

By selecting “Status” on the Manage Encryption page

B.

Automatically the first time the license file is applied

C.

By clicking the “Mode” checkbox on the Manage Encryption page

D.

Programmatically set at the factory.

Which migration tool can be used to move file data a Unity storage array in both NFS and CIFS/SMB protocols?

A.

EMC Select Datadobi

B.

Unity Async Replication

C.

rsync

D.

EMCopy

A company needs to expand their dynamic pool by 5 TB. The current dynamic pool consists of sixty-three 3.8 TB SSD that are configured for RAID5 4+1.

What is the minimum number of drives needed for the pool expansion?

A.

1

B.

6

C.

7

D.

8

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?

A.

Test_LUN was expanded by 100 GB and a Density-based Host IO limit policy was set for all three LUNs

B.

Test_LUN was expanded by 100 GB and a Density-based Host IO limit policy was set only for Test_LUN

C.

Host IO limit of Test_LUN was edited and the limit was increased by 1000 IOPS

D.

Another Absolute Host IO limit policy with additional 1000 IOPS was set on Test_LUN

A company plans to add five drives to a 30 drive SAS Flash 4 All-Flash pool on a Dell EMC Unity XT 600 storage array. Which drive type(s) can be used for the expansion?

A.

SAS Flash 2 and SAS Flash 3 only

B.

SAS Flash 4 only

C.

SAS Flash 3 and SAS Flash 4 only

D.

Any SAS Flash drive type

Match each Dell EMC tool to its respective function.

Which Dell EMC Unity XT models support Dynamic Pools?

A.

Dell EMC UnityVSA storage only B. 380F, 480F, 680F, and 880F

B.

380F, 480, 680F, and 880

C.

380, 480, 680, and 880

Which UnityVSA configuration can be performed using the Unisphere Initial Configuration wizard?

A.

Register host iSCSI initiators

B.

Configure Link Aggregation

C.

Register host HBA WWNs

D.

Add iSCSI network interfaces

Which operation can be performed on the General tab of the LUN Properties page?

A.

Extend the LUN

B.

Grant Host access

C.

Replicate the LUN

D.

Set Host I/O limits

A system administrator has asynchronous remote replication configured between a pair of systems and replication is currently operating normally. When the administrator views a replication session on the Unisphere Sessions page for the destination system, which option is available when viewing “More Actions”?

A.

Failover with sync

B.

Failover

C.

Pause

D.

Sync

What are considerations when configuring a Proxy NAS Server?

A.

Can be created on either SP regardless of where the replicated NAS Server residesMay utilize different access protocols as the replicated NAS Server

B.

Can be created on either SP regardless of where the replicated NAS Server residesMust use the same access protocols as the replicated NAS Server

C.

Must be created on the same SP as the replicated NAS ServerMust use the same access protocols as the replicated NAS Server

D.

Must be created on the same SP as the replicated NAS ServerDifferent access protocols may be utilized as the replicated NAS Server

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

A.

Different subnets

B.

Flow control

C.

Twinax cables

D.

Jumbo frames

Which command can be issued from the vSphere client to configure an IP management address?

A.

svc_initialize_system

B.

svc_initialize_config

C.

svc_initial_system

D.

svc_initial_config

Through which protocols are backend storage provisioned to the ESXi host when deploying a UnityVSA system?

A.

iSCSI, SMB, and NFS

B.

iSCSI and NFS only

C.

FC, iSCSI, and NFS

D.

FC and iSCSI only

When configuring integrated ESRS access to a Dell EMC Unity XT array, which firewall ports need to be open?

A.

443 and 8443

B.

443 and 9443

C.

8443 and 9443

D.

22 and 8443

What is the maximum number of LUN snapshots that are supported by Unity?

A.

16

B.

96

C.

256

D.

512

A storage administrator is creating a host profile in Unisphere to provide host access to block storage resources using the iSCSI protocol. The host initiators were not automatically discovered and must be manually added.

In addition to the SAN host IQN, what other configuration can be performed through the "Create iSCSI Initiator Wizard" window?

A.

Enable and disable CHAP settings

B.

Create Mutual CHAP secret

C.

Create Global CHAP secret

D.

Enter CHAP username and secret

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