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Exam2pass > Dell > Dell Certifications > DES-1721 > DES-1721 Online Practice Questions and Answers

DES-1721 Online Practice Questions and Answers

Questions 4

Which best practices should be followed when using iSCSI to connect SC Series arrays and hosts for switches that incorrectly negotiate speed and duplex?

A. Use a separate supernet or switches for iSCSI traffic Gigabit full duplex hard set for all iSCSI ports Ensure switches used for iSCSI are of a blocking design

B. Use a separate VLAN or switches for iSCSI traffic Auto-negotiate for all switches Ensure switches used for iSCSI are of a non-blocking design

C. Use a separate VLAN or switches for iSCSI traffic Gigabit full duplex hard set for all iSCSI ports Ensure switches used for iSCSI are of a non-blocking design

D. Use a separate subnet or switches for iSCSI traffic Auto-negotiate for all switches Ensure switches used for iSCSI are of a blocking design

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Correct Answer: C

Reference: https://www.vcdx200.com/2014/09/iscsi-and-ethernet.html

Questions 5

Why would the Key Management Server (KMS) Settings page appear during installation?

A. Page appears only if SED drives are present

B. Page only appears if an external KMS is defined during setup and configuration

C. Page is standard and always appears as part of the installation and configuration

D. Page only appears if a security certificate is not generated

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Correct Answer: A

Reference: http://en.community.dell.com/cfs-file/__key/telligent-evolution-components-attachments/13-4491-00-00-20-44-02-04/ Securing_2D00_SC_2D00_Series_2D00_storage_2D00_best_2D00_practices_2D00_Dell_2D00_2016_2D002800_BP1082_2900_.pdf?forcedownload=true

Questions 6

Which SC Series array feature simplifies iSCSI connectivity and allows access to all ports through redirection?

A. Legacy Port Mode

B. ISNS

C. ALUA

D. Virtual Port Mode

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Correct Answer: D

Reference: https://www.dell.com/storagehelp/dellstorageclient/2016R3.10/en-US/GUID-2D6A2482-F78D-4598-ADA3-D9E49ED3ED7F.html

Questions 7

How much memory is required if a customer plans to use the Dell Storage Replication Adapter for VMware with their Dell EMC Data Collector?

A. 4 GB

B. 8 GB

C. 10 GB

D. 12 GB

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Correct Answer: A

Questions 8

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

A. 1

B. 2

C. 3

D. 4

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Correct Answer: B

Reference: https://www.dell.com/support/manuals/us/en/04/dell-compellent-sc4020/sc4020om-v8/fault-domains-in-virtual-port-mode?guid=guid-91718ce3-44aa-4af4-aa20-8840bca43351andlang=en-us

Questions 9

What does Compression use to reduce data space?

A. Ocarina's proprietary Algorithm

B. Duplicate page identification

C. On Demand Data Progression

D. Audit cycles

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Correct Answer: A

Reference: https://storageioblog.com/data-footprint-reduction-part-2-dell-ibm-ocarina-and-storwize/

Questions 10

What is the maximum number of Fault Domains on a SCv3000 Storage Center using SAS front-end?

A. 1

B. 2

C. 3

D. 4

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Correct Answer: D

Reference: https://www.dell.com/support/manuals/us/en/04/storage-scv3000/scv3000-scv3020-dg/fault-domains-for-scv3000-series-storage-systems?guid=guid-bc3640b7-c0b1-46bf-a95a-970e2a3f9abfandlang=en-us

Questions 11

How many SAS ports are used on each EMM of an SC460?

A. 1

B. 2

C. 3

D. 4

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Correct Answer: D

Reference: https://usermanual.wiki/Dell/storagesc460.900232340/help

Questions 12

After an initial implementation of a SC Fibre Channel front-end, during the failover test one of the controllers gets reset. All Virtual WWNs from the reset controller are migrated to a single port of the remaining controller.

What corrective action should be taken?

A. Check cabling, FC Zoning or Fault Domains for incorrect configuration and revise as needed

B. Incorrect cables used, re-cable as needed

C. This is the expected behavior and the test completed successfully

D. FC zoning is not enabled, enable zone config

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Correct Answer: A

Questions 13

When a SC is in a failover state what will occur in the surviving controller?

A. Data and metadata will be available

B. The read cache that is associated with the failed controller will be created

C. The deduplication dictionary from the failed controller will load

D. Deduplication will run

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Correct Answer: B

Exam Code: DES-1721
Exam Name: Specialist - Implementation Engineer, SC Series
Last Update: May 07, 2025
Questions: 147

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