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DES-1721 Specialist - Implementation Engineer-SC Series Exam Questions and Answers

Questions 4

What does Compression use to reduce data space?

Options:

A.

Ocarina’s proprietary Algorithm

B.

Duplicate page identification

C.

On Demand Data Progression

D.

Audit cycles

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Questions 5

Refer to the exhibit.

When scanning Fibre Channel on a QLogic HBA what information can be obtained?

Options:

A.

The volume mapped to the QLogic HBA

B.

WWN of the QLogic HBA

C.

WWN of the connected Storage Center

D.

WWN of the SAN switch

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Questions 6

A file server using an SC7020 storage array was impacted by ransomware in the morning and a majority of the files need to be recovered. The backup from the previous night did not run. Is there anything that can be done on the SC7020 array to help recover these files?

Options:

A.

Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. Volume(s) can be rolled back to this snapshot.

B.

Nothing can be done on the SC7020 to assist with this recovery.

C.

Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. A Replay can be created from this snapshot and the files recovered.

D.

Yes, if there is a snapshot from before the ransomware on the volume(s) were impacted. A View volume can be created from this snapshot and the files recovered.

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Questions 7

A SC5020 has been installed and it is using front-end SAS. There is a problem on Server A and Server B during Controller failover. Each server has a connection in Fault Domains 1 and 2.

What is wrong?

Options:

A.

Servers must have all connections in a single Fault Domain

B.

Asymmetric Logical Unit Access (ALUA) is not properly configured

C.

SC5020 does not support SAS as the front-end

D.

SAS switch configuration issue

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Questions 8

An administrator wants to configure an SC Series array to use Virtual Port Mode. What is a requirement to accomplish this task?

Options:

A.

I/O Controller cards must use a single-ID firmware version

B.

Activation license must be installed

C.

NPIV must be disabled on Fibre Channel switches

D.

Fibre Channel switches must use an arbitrated loop topology

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Questions 9

During the initial installation of a new SC9000 Storage Center, which Dell Storage Manager (DSM) Client option should be selected?

Options:

A.

Configure this host to access a Storage Center

B.

Configure VMware vSphere to access a Storage Center

C.

Discover and Configure Uninitialized SCv2000 or SC7000 Series Storage Centers

D.

Login to a Storage Center or Data Collector

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Questions 10

Refer to the exhibit.

Starting in the upper left corner of the SCv3000 what is the numerical order of the disks across the top row? A. 3, 2, 1, 0

B. 4, 3, 2, 1

C. 1, 2, 3, 4

D. 0, 1, 2, 3

Options:

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Questions 11

What information should be considered when planning for storage performance requirements?

Options:

A.

SAS chain length

B.

Volume size

C.

Asynchronous replication performance

D.

Spindle count

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Questions 12

Assume a storage administrator is using the recommended storage profile. What describes the distribution of volume data residing in an SC series storage array that has 15K and 7K as the back-end?

Options:

A.

New and frequently accessed replay data in Tier 1 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6

B.

New data in Tier 1 RAID 10Frequently accessed replay data in Tier 1 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6

C.

New data in Tier 1 RAID 10Frequently accessed replay data in Tier 2 RAID 5Aged replay data and inaccessible data in Tier 3 RAID 6

D.

New and frequently accessed replay data in Tier 1 RAID 10Aged replay data and inaccessible data in Tier 3 RAID 6

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Questions 13

Which datapage size options are available for SC Series arrays?

Options:

A.

512 KB, 1 MB, and 2 MB

B.

512 KB, 2 MB, and 4 MB

C.

1 MB, 2 MB, and 4 MB

D.

1 MB, 4 MB, and 8 MB

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Questions 14

Which configuration represents how the back-end is cabled on an SC7020 storage array without expansion enclosures?

Options:

A.

Configuration A

B.

Configuration B

C.

Configuration C

D.

Configuration D

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Questions 15

What is the HDD size that enforces dual redundancy?

Options:

A.

2 TB and higher

B.

Up to 3 TB

C.

4 TB and higher

D.

3 TB and higher

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Questions 16

What is the recommended minimum number of ports per controller, per fault domain, to support port-level failover?

Options:

A.

1

B.

2

C.

3

D.

4

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Questions 17

During the addition of an SCv360 enclosure to a SCv3020 the PCle SAS card is used for connectivity. The enclosure is NOT recognized by the system, why?

Options:

A.

SCv3020 does not allow enclosure expansion

B.

SCv2360 is unsupported for enclosure expansion

C.

SCv3020 does not support 12Gb SAS

D.

PCle SAS is unsupported for enclosure expansion

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Questions 18

The storage profile of a volume has changed. What is the correct statement regarding the newly written pages of this volume?

Options:

A.

Move after 12 cycles of Data Progression

B.

Will follow the new storage profile immediately

C.

Move during the next Data Progression

D.

Move after creation of a view volume

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Questions 19

Which command is used to set the eth0 IP address on an SC4020 controller?

Options:

A.

ifconfig inet eth0 [IP address] [netmask] [gateway]

B.

controller ipconfig eth0 [IP address/prefix length]

C.

ifconfig inet eth0 [IP address/prefix length]

D.

controller ipconfig eth0 [IP address] [netmask] [gateway]

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Questions 20

Based on documented best practices, which options may need to be modified on a server QLogic HBA?

Options:

A.

Port Down Retry Count and Enable LIP Reset

B.

Enable Target Reset and Login Retry Count

C.

Port Down Retry Count and Enable Target Reset

D.

LUNs Per Target and Port Down Retry Count

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Questions 21

A customer wants to configure a threshold alert definition. Which types of definitions can be configured?

Options:

A.

Latency, Disks, and Replication

B.

Storage, Latency, and Disks

C.

Storage, Replication, and Hardware

D.

I/O Usage, Storage, and Replication

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Questions 22

You just finished racking a SC7020 array. After powering it on, you notice there is no indicator LED on the front or back of the array, but the fans are spinning.

What could be the cause?

Options:

A.

220VAC is being used. The system is preventing a fire hazard

B.

Controllers are misplaced. Swap the position of the controllers

C.

110VAC is being used on the power mains

D.

The SC is overheated; let it cool down

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Exam Code: DES-1721
Exam Name: Specialist - Implementation Engineer-SC Series Exam
Last Update: May 4, 2024
Questions: 147
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