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E20-393 Unity Solutions Specialist Exam for Implementation Engineers Questions and Answers

Questions 4

A storage administrator notices that all the configured Host I/O Limit policies are Globally Paused. How can the administrator put these policies into the Active state?

Options:

A.

Select the Host I/O Limit policy for each and configure the Host I/O Limits setting to Active.

B.

From the Settings>Performance page, configure the Host I/O Limits settings to Resume.

C.

From the Settings> Performance page, configure the Host I/O Limits settings to Active.

D.

Select the Host I/O Limit policy for each and configure the Host I/O Limits setting to Resume.

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Questions 5

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?

Options:

A.

Data Reduction

B.

FAST Cache

C.

File System Quotas

D.

Host I/O Limits

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Questions 6

A storage administrator is tasked with creating a DR solution for block and file storage resources. The company has multiple regional and international sites containing a mix of physical and virtual Dell EMC Unity systems.

What are considerations for the storage administrator in creating the DR solution?

Options:

A.

Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 msBlock storage resources can be replicated synchronously and asynchronously

B.

Asynchronous replication ensures zero data loss the remote replica in disaster conditionsBlock storage resources can be replicated synchronously and asynchronously

C.

Asynchronous replication over long-distance does not impact latencyAsynchronous replication ensures zero data loss to the remote replica in disaster conditions

D.

Synchronous remote replication should be restricted to within 100 km between sites to keep latency below 10 msFile and block storage resources can be replicated synchronously and asynchronously

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Questions 7

What is the usefulness of setting a quota limit to zero?

Options:

A.

Increases space efficiency on the file system.

B.

Reduces CPU overhead for clients accessing data.

C.

Increases file system access performance.

D.

Enables tracking and reporting on file system usage.

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Questions 8

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

Options:

A.

svc_initialize_system

B.

svc_initialize_config

C.

svc_initial_system

D.

svc_initial_config

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Questions 9

Which feature can be configured for a Unity File System NFS share?

Options:

A.

Continuous Availability

B.

Offline Availability

C.

Host Access Level

D.

Protocol Encryption

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Questions 10

A user is setting up Dell EMC Unity network ports for connectivity between the NAS clients and NAS Servers. In Unisphere, what can a user modify under the Access section of the Settings configuration window?

Options:

A.

Speed and MTU only

B.

Speed, MTU, and port aggregation

C.

Speed, MTU, and name of port

D.

Speed and port aggregation only

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Questions 11

Which feature is supported on a UnityVSA operating environment?

Options:

A.

Asynchronous Replication

B.

MCC Write Caching

C.

Quick Start Pool Provisioning

D.

Data at Rest Encryption

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Questions 12

Which severity level alerts for a fault condition that has occurred, has minor impact on the system, and does not need to be fixed immediately?

Options:

A.

Critical

B.

Notice

C.

Error

D.

Warning

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Questions 13

When can Data at Rest Encryption (D@RE) be enabled?

Options:

A.

License is applied the first time

B.

Management IP is assigned

C.

LUN is created

D.

File system is created

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Questions 14

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?

Options:

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

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Questions 15

In UnityVSA, which license(s) is able to extend the storage capacity from 25 TB to 50 TB with an upgrade path license?

Options:

A.

Professional only

B.

Professional and VVOLS

C.

VVOLS only

D.

Community

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Questions 16

Which Unity feature provides a high bandwidth connection for large file transfers, enables proactive Service Request generation and usage license reporting, and operates on a 24x7 basis?

Options:

A.

EMC Service Center

B.

Software Licensing Central

C.

Unisphere Central

D.

EMC Secure Remote Services

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Questions 17

According to Dell EMC best practices, how should off-site data be asynchronously replicated for a DR solution?

Options:

A.

Include a Flash tier in a hybrid pool where asynchronous replication will be active on the source only.

B.

Include a Flash tier in a hybrid pool where asynchronous replication will be active on both the source and destination.

C.

Configure the RLP on both the source and destination arrays equal to 20% of the data to be replicated

D.

Configure the sync replication ports on the CAN for 16Gb Fibre Channel on both the source and destination.

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Questions 18

What is required for file system creation on Unity?

Options:

A.

Shares

B.

DNS configuration

C.

NTP configuration

D.

NAS Server

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Questions 19

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

Options:

A.

2

B.

4

C.

6

D.

8

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Questions 20

When can a LUN be defined as thin or thick?

Options:

A.

Any time after the LUN has been created

B.

Only when creating the LUN

C.

Only when enabling data reduction on the LUN

D.

Only when adding host access to the LUN

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Questions 21

Which Unity service task is used to reinstall the root operating system while leaving the user’s data intact?

Options:

A.

Restore the Management server

B.

Reimage the Storage Processor

C.

Restore the Management software

D.

Reinitialize the storage system

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Questions 22

When creating a new LUN on a Dell EMC Unity array using Unisphere, what is the default setting of the Data Reduction feature?

Options:

A.

OFF for thick LUNs and ON for thin LUNs

B.

ON for thick LUNs and OFF for thin LUNs

C.

ON for thin LUNs in an All-Flash pool

D.

OFF for thin LUNs in an All-Flash pool

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Questions 23

What storage resources can be provisioned to a host that is connected to a Dell EMC Unity XT storage system via Fibre Channel?

Options:

A.

LUNs, CIFS shares, and Consistency Group LUNs

B.

VMFS datastores, NFS datastores, and VVol(file) datastores

C.

LUNs, Consistency Group LUNs, and NFS datastores

D.

Consistency Group LUNs, VMFS datastores, and VVol (block) datastores

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Questions 24

When the LUN Snapshot Attach to Host operation is performed, what does the Unity system optionally do before beginning the attach process?

Options:

A.

Creates a snapshot of the LUN

B.

Detaches the host from the snapshots of any other LUN

C.

Creates a copy of the snapshot

D.

Deletes all other existing snapshots of the LUN

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Questions 25

A storage administrator is planning to move a NAS Server to the peer SP on a Dell EMC Unity system. The NAS Server and two of its associated file systems have active asynchronous replication sessions to a remote Dell EMC Unity system.

How should the storage administrator proceed?

Options:

A.

Manually pause the replication sessions for the NAS Server and file systems.

B.

Set the RPO value to 1440 for the NAS Server and file system replication sessions

C.

Set the RPO value to 0 for the NAS Server and file system replication sessions

D.

Failover the replication sessions for the NAS Server and file systems

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Questions 26

What is the default setting of Advanced Deduplication when Data Reduction is selected within Unisphere?

Options:

A.

Disabled for thick LUNs and enabled for thin LUNs

B.

Disabled for thin LUNs in an All-Flash pool

C.

Enabled for thin LUNs in an All-Flash pool

D.

Enabled for both thick and thin LUNs

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Questions 27

You are creating a dynamic pool using 12 drives in the Unisphere GUI. Which RAID stripe width will be set when creating the dynamic pool using RAID 6?

Options:

A.

4+2

B.

6+2

C.

8+2

D.

10+2

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Questions 28

What is the sequence of steps that must be executed to implement IP Multi-tenancy in a Unity system?

Options:

A.

Create file systems and shares for each tenantConfigure host access for the tenant’s sharesAdd tenants to the Unity System

B.

Associate tenants with existing NAS serversCreate file systems and shares for each tenantConfigure host access for the tenant’s shares

C.

Create a NAS server for each tenantCreate file systems and shares for each tenantAdd tenants and associate to the NAS servers

D.

Add tenants to the Unity systemCreate a NAS server for each tenantCreate file systems and shares for each tenant

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Questions 29

On a Dell EMC Unity file system asynchronous session, how many system Snapshots, in total, are required to support replication?

Options:

A.

1

B.

2

C.

4

D.

8

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Questions 30

What technology is used by Dell EMC Unity Snapshots?

Options:

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.

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Questions 31

What is the correct sequence of steps taken by the storage array during the synchronous replication process?

Options:

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Questions 32

What block size do Dell EMC Unity systems use to copy highly accessed blocks of data from spinning drives into FAST Cache?

Options:

A.

16 KB

B.

32 KB

C.

64 KB

D.

128 KB

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Questions 33

A system administrator is configuring asynchronous remote replication for an existing NAS server and its associated file systems on a Unity system. What action(s) will meet the requirements?

Options:

A.

Manually create replication sessions for each file system. The system will automatically create a session for the NAS Server.

B.

Manually create NAS Server replication session. The system will automatically create sessions for the associated file systems.

C.

Manually create replications for each associated file system. Then manually create a session for the NAS Server.

D.

Manually create NAS Server replication session first. Then manually create replication sessions on each of the associated file systems.

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Questions 34

What is the correct order of steps to power up a Dell EMC Unity XT storage system?

Options:

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Questions 35

Which Dell EMC Unity XT models support Dynamic Pools?

Options:

A.

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

B.

380F, 480, 680F, and 880

C.

380, 480, 680, and 880

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Questions 36

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

Options:

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

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Questions 37

FAST VP tracks data for relocation within the pool at what size slices?

Options:

A.

128 MB

B.

256 MB

C.

512 MB

D.

1024 MB

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Questions 38

What can be used to initially configure a static management IPv6 address on a Dell EMC Unity array?

Options:

A.

symcli

B.

navisecCLI

C.

uemcli

D.

initCLI

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Questions 39

What determines the fault characteristics of a disk group?

Options:

A.

Drive speed

B.

Stripe width

C.

Drive type

D.

D@RE

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Questions 40

Which protocols are supported by Dell EMC UnityVSA for storage provisioning?

Options:

A.

iSCSI, NFS, and SMB

B.

FC, NFS, and iSCSI

C.

iSCSI and FC only

D.

iSCSI and SMB only

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Questions 41

What is the role of Protocol Endpoints in Dell EMC Unity VMware storage provisioning?

Options:

A.

Enable transparent host attach operations to Snapshots of VVol datastores

B.

Manage host IO workload balance between multiple paths to the VMware datastores

C.

Provide a write consistent view to the host when accessing multiple VMware datastores

D.

Establish a data path between the ESXi host and the respective VVol datastores

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Questions 42

A storage administrator is considering adding another application to run on their Unity 300 but they are concerned about the application’s performance. They ask what is considered “normal” for CPU utilization. Based on Dell EMC best practices, what should be your response?

Options:

A.

Below 50%

B.

50% - 70%

C.

70% - 90%

D.

90% - 95%

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Questions 43

What is a characteristic of the iSCSI interface on Dell EMC Unity storage arrays?

Options:

A.

IQN aliases can be created optionally after the iSCSI interface is created.

B.

IQN aliases are associated with an iSCSI interface.

C.

IQNs are associated with a network port.

D.

An iSCSI interface can be created with both an IPv4 and IPv6 IP address.

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Questions 44

How is encryption set for a Unity storage system?

Options:

A.

Clicking the “Mode” checkbox on the Manage Encryption page

B.

Selecting “Status” on the Manage Encryption page

C.

Automatically set at the factory

D.

First time the license is applied

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Exam Code: E20-393
Exam Name: Unity Solutions Specialist Exam for Implementation Engineers
Last Update: Jun 17, 2024
Questions: 297
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