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

Question # 4

Which information must be retrieved and used to select the unconfigured UnityVSA system when running the Auto-discover option of the Connection Utility?

A.

Array Name

B.

System’s Serial ID

C.

DNS Host Name

D.

System’s UUID

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Question # 5

On which storage objects is data Reduction supported?

A.

Thick LUNs and VVols

B.

VMFS datastores and VVols

C.

Thin LUNs and thin VMFS datastores

D.

Thin LUNs and thick LUNs

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Question # 6

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

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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Question # 7

Which FAST Cache operation proactively copies dirty pages to underlying hard disk drives?

A.

FAST Cache flushing

B.

FAST Cache promotion

C.

FAST Cache warming

D.

FAST Cache cleaning

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Question # 8

With Redirect on Write technology, when writes are made to the storage resource and more space is required, what size is the slice allocated from the parent pool?

A.

8 KB

B.

64 KB

C.

128 MB

D.

256 MB

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Question # 9

What describes the LUN Snapshot Copy operation?

A.

Parent cannot be a snapshot copyCan only copy a detached snapshotHas an independent Retention Policy from the parent

B.

Parent can be a snapshot copyCan only copy a detached snapshotHas an independent Retention Policy from the parent

C.

Parent can be a snapshot copyCan copy an attached or detached snapshotInherits the parent Snapshot Retention Policy

D.

Parent cannot be a snapshot copyCan copy an attached or detached snapshotInherits the parent Snapshot Retention Policy

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Question # 10

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

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Question # 11

A Storage administrator needs to expand their FAST Cache by 400 GB. The current configuration consists of two 400 GB SAS Flash 2 drives.

What can be used to expand the FAST Cache?

A.

Two 200 GB SAS Flash 2 drives

B.

Two 400 GB SAS Flash 2 drives

C.

Four 200 GB SAS Flash 3 drives

D.

One 400 GB SAS Flash 2 drive

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Question # 12

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

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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Question # 13

Which UnityVSA storage resource can be configured with Host I/O limits?

A.

NAS Server

B.

Pool

C.

File System

D.

LUN

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Question # 14

What is the correct order of steps to attach a snapshot to a host?

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Question # 15

By default, the storage system transfers log information on which network port?

A.

138

B.

464

C.

514

D.

2049

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Question # 16

A system administrator experienced a power failure in their environment. To which device will cache de-stage?

A.

M.2 SSD on each Storage Processor

B.

First four disks in the Disk Processor Enclosure

C.

Cache does not need to de-stage as it is now non-volatile

D.

Backup Battery Unit will keep the data alive in cache

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Question # 17

A storage administrator wants to create datastores using VMware VASA APIs and IP networking.

Which type of datastore should be used?

A.

File datastore

B.

Block datastore

C.

VVol (file)

D.

VVol (block)

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Question # 18

What capability is provided by the Dell EMC CIFS Management snap-in?

A.

Configure share permissions

B.

Configure NAS Server registry settings

C.

Manage home directories

D.

Manage local NAS Server users

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Question # 19

What pathing options are supported by Dell EMC Unity XT systems to provide a host with Fibre Channel access to block storage?

A.

Single Path, Multipath, and Alternate Path

B.

Single Path and Multipath only

C.

Multipath only

D.

Single Path only

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Question # 20

What is a benefit of Dell EMC Unity XT Series dynamic pools?

A.

Reduced time to rebuild a failed drive

B.

Improved access to data resident on the drive tiers

C.

Protects written data from deletion or modification

D.

Enables throughput and bandwidth throttling

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Question # 21

Which FAST Cache operation can be performed from the Settings window?

A.

Disable FAST Cache use on a specific pool

B.

Pause FAST Cache use

C.

Expand FAST Cache

D.

Enable FAST Cache use on a specific pool

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Question # 22

Which Dell EMC Unity XT storage resource allows modification of its block size during creation?

A.

VVol file datastore

B.

VMFS datastore

C.

VVol block datastore

D.

NFS datastore

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Question # 23

A storage administrator wants to configure a Unity system to log system events to a remote log server. In order to allow access to the log server, which port should the administrator ensure is not blocked by the firewall?

A.

514

B.

714

C.

1000

D.

5179

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Question # 24

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

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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Question # 25

What is a characteristic of FAST VP?

A.

User can enable or disable FAST VP at the LUN level

B.

FAST VP optimizes data placement by moving 1GB slices between disk tiers

C.

Once enabled, FAST VP data relocation runs in background runs in background at all times

D.

User can set the FAST VP data relocation rate

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Question # 26

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

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Question # 27

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

A.

iSCSI, NFS, and SMB

B.

FC, NFS, and iSCSI

C.

iSCSI and FC only

D.

iSCSI and SMB only

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Question # 28

After performing the initial configuration of a new UnityVSA, when do alerts concerning license expiration first occur?

A.

7 days prior to expiration

B.

15 days prior to expiration

C.

1 month prior to expiration

D.

2 months prior to expiration

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Question # 29

What is a characteristic of the IP Packet Reflect feature running on a Dell EMC Unity NAS Server?

A.

SP must be rebooted after the feature is enabled on the NAS Server

B.

Outbound packets use the same interface as the inbound packets

C.

Communications initiated by the array do not require route table lookups

D.

Feature can only be enabled when the NAS Server is created via UEMCLI.

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Question # 30

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

A.

A

B.

B

C.

C

D.

D

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Question # 31

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

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Question # 32

In order to replace a faulty component, a service provider has placed one of the Unity Storage Processors into Service mode. Once the component is replaced, how is the Storage Processor brought back into Normal mode?

A.

Exit the Service Mode task

B.

Reboot the Storage Processor

C.

Reboot the storage system

D.

Restart the Management software

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Question # 33

An administrator’s Unity system is configured with both a Fibre Channel CNA and a Fibre Channel I/O module. Which Fibre Channel port on each SP must be used for native synchronous replication?

A.

CNA FC port 5

B.

I/O module FC port 2

C.

CNA FC port 4

D.

I/O module FC port 5

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Question # 34

A Unity customer has a 20 TB pool consisting of SAS and NL-SAS drives. Based on Dell EMC best practices, what is the minimum recommended amount of Flash capacity they should use for a Flash tier?

A.

1 TB

B.

2 TB

C.

4 TB

D.

10 TB

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Question # 35

A storage administrator wants to configure a Unity system to join the list of arrays remotely monitored for activity and system status using Unisphere Central. The security policy on the Unisphere server was set to “automatic”.

What additional security information must be specified in the Unisphere Settings window to enable communication with Unisphere Central?

A.

Unisphere Central IP address and login credentials

B.

Unisphere Central IP address and Central Hash

C.

Unisphere Central Hash and login credentials

D.

Unisphere Central Hash and challenge phrase

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Question # 36

When deploying virtual disks for a UnityVSA system, what is an EMC recommended Disk Provision Policy?

A.

Thick Provision Eager Zeroed

B.

Thin Provision

C.

Thick Provision

D.

Thick Provision Lazy Zeroed

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Question # 37

What is a consideration when configuring automated software downloads on a Dell EMC Unity XT storage array?

A.

VASA should be enabled

B.

One-way ESRS must be implemented on the system

C.

Firewalls should be open

D.

Two-way ESRS must be implemented on the system

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Question # 38

A storage administrator is monitoring the pool Capacity of two identical Dell EMC Unity XT systems. Each system has every LUN replicated to the other system and all replication sessions are in sync. Both systems are used for production storage. CloudIQ is receiving updates from both systems, but shows that one of them is filling up more quickly than the other.

What is a possible explanation for this behavior?

A.

One of the Unity XT systems is used less than the other one.

B.

Dell EMC Unity Data Reduction is not identically enabled on LUNs on both systems.

C.

CloudIQ is not receiving the same amount of updates from one of the two systems.

D.

Dell EMC Unity Data Reduction license is not enabled on one of the two systems.

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Question # 39

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.

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Question # 40

What is a consideration when implementing a Thin Clone on a Dell EMC Unity array?

A.

Thin Clone is only supported on physical Dell EMC Unity systems.

B.

Thin Clone can be expanded independently from the base LUN

C.

Thin Clone can be created directly from the base LUN

D.

Data Reduction can be enabled independently on source LUN and on Thin Clone

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Question # 41

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

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Question # 42

What is one method that is used to verify an ESRS configuration?

A.

Proxy server authentication

B.

RSA authentication

C.

Trigger an SNMP trap test

D.

Send an e-mail verification

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Question # 43

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.

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Question # 44

Which disk format is recommended for Dell EMC Unity’s OVA?

A.

Thick Provision Lazy Zeroed

B.

raw

C.

Thick Provision Eager Zeroed

D.

Thin Provision

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