DES-1721 Online Training Archives

Exam4Training delivers DELL EMC DES-1721 Specialist – Implementation Engineer, SC Series Exam Online Training which give you detailed and logical coverage of DES-1721 exam pattern syllabus and provide you with the real exam environment as these products are built by IT examiners so you experience the real exam features in our products.You will not have to take the DECS-IE DES-1721 exam twice because with the help of DELL EMC DES-1721 Specialist – Implementation Engineer, SC Series Exam Online Training you will have every valuable material required for you to pass the DELL EMC DES-1721 exam.

Page 1 of 3

1. You are installing a new SC9000.

Which procedure should be used to install and configure the system?

Connect through the iDRAC port

Connect through a null modem cable to the serial port

Connect through the Dell Storage Manager Client

Connect through the supplied proprietary serial cable to the serial port

2. Based on SAS back-end cabling best practices, which configuration represents how an SC4020 storage array with one SC220 expansion enclosure is cabled?

Configuration A

Configuration B

Configuration C

Configuration D

3. An administrator wants to configure an SC Series array to use Virtual Port Mode.

What is a requirement to accomplish this task?

NPIV must be disabled on Fibre Channel switches

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

Fibre Channel switches must use a switched fabric topology

Activation license must be purchased and installed

4. What are the possible methods to upgrade the firmware on a Brocade switch?

FTP, SFTP, and Web Tools

USB, FTP, and SFTP

USB, FTP, and Web Tools

USB, SFTP, and Web Tools

5. A customer is running the Dell Storage Manager (DSM) Suite as a software stack on Microsoft Windows. To reduce the Microsoft licensing costs, the customer wants to switch to the DSM Virtual Appliance.

Which recommended deployment should the customer use?

Configure as a Primary Data Collector

Configure as a Remote Data Collector

Migrate the DSM database manually

Migrate from the existing Data Collector

6. Which operating system runs the Dell Storage Manager (DSM) as a virtual appliance?

CentOS 7

Windows Server 2012 R2

VMware

Windows Server 2010 R2

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

Use a separate supernet or switches for iSCSI trafficGigabit full duplex hard set for all iSCSI portsEnsure switches used for iSCSI are of a blocking design

Use a separate VLAN or switches for iSCSI trafficAuto-negotiate for all switchesEnsure switches used for iSCSI are of a non-blocking design

Use a separate VLAN or switches for iSCSI trafficGigabit full duplex hard set for all iSCSI portsEnsure switches used for iSCSI are of a non-blocking design

Use a separate subnet or switches for iSCSI trafficAuto-negotiate for all switchesEnsure switches used for iSCSI are of a blocking design

8. DRAG DROP

What is the correct system hierarchy of SC Series array storage virtualization?

9. 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?

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

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

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

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

10. A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however, nothing was found. The I/O graphs do not show any anomaly and the replication links are not saturated.

What is the possible reason for this behavior?

Switches used for replication are restarting

QoS Bandwidth Limit is enabled in the QoS node

Data Progression is consuming all disk performance

Automatic report creation is impacting replication

Page 2 of 3

11. A customer is concerned they are over utilizing their 7K drives. Where can information about the real time I/O usage of individual drives be viewed?

Hardware > Disks > [disk folder] > [disk number]

Charting > Disks > [disk folder] IO Charts

Charting > Disks > [disk folder] > [disk number]

Hardware > Disks > [disk folder]

12. A company is using an SC4020 array and the storage administrator wants to expand the available capacity by adding 92, 3.5” disk drives.

Which expansion enclosure(s) can be used to meet the demand?

1x SC280 drive bay

2x SC180 drive bays

4x SC220 drive bays

8x SC200 drive bays

13. You have implemented two SC Series systems at a customer site. The Dell Storage Manager (DSM) Suite has been installed on a Microsoft Windows server. Both Storage Centers have been installed and added to the DSM.

However, several days after the installation, the customer is only able to see one Storage Center in the DSM GUI.

Which recommended action will correct this issue?

Check the network connections to the missing Storage Center

Reinstall the DSM including the database

Connect the DSM to the Data Collector

Restart the missing Storage Center

14. What is the maximum number of disks that can be supported by an SC4020 running SCOS 6.6.4 or later?

120

128

192

196

15. You need to set up the iDRAC IP address on an SC Series controller with the following details:

IP address 192.168.0.160

subnet mask 255.255.255.0

gateway 192.168.0.1

Which commands should be used to complete this task?

ifconfig inet set eth0 ip 192.168.0.160ifconfig inet set eth0 netmask 255.255.255.0ifconfig inet set eth0 gateway 192.168.0.1

ifconfig inet set eth1 ip 192.168.0.160ifconfig inet set eth1 netmask 255.255.255.0ifconfig inet set eth1 gateway 192.168.0.1

controller ipconfig set eth0 ip 192.168.0.160controller ipconfig set eth0 netmask 255.255.255.0controller ipconfig set eth0 gateway 192.168.0.1

platform bmc set ip 192.168.0.160platform bmc set netmask 255.255.255.0platform bmc set gateway 192.168.0.1

16. Which zones accurately describe the zoning requirement for replication connectivity to be established when the source array is in Legacy Port Mode and the target array is in Virtual Port Mode?

Zone 1 = All Source Virtual Port WWNs + All Remote Physical Port WWNsZone 2 = All Source Physical Port WWNs + All Remote Virtual Port WWNs

Zone 1 = All Physical WWNs from both arraysZone 2 = All Virtual WWNs from both arrays

Zone 1 = All Source WWNs + All Remote Virtual Port WWNsZone 2 = All Source WWNs + All Remote Physical Port WWNs

Zone 1 = All Source Virtual Port WWNs + All Remote Port WWNsZone 2 = All Source Physical Port WWNs + All Remote Port WWNs

17. A customer wants to add an iSCSI path to a Microsoft Windows Server 2012 R1. The server has an existing Fibre Channel path to an SC7020 array for load balancing and high availability.

Which Windows MPIO policy should be configured to achieve the customer’s requirement?

Fail Over Only

Weighted Paths

Round Robin with Subset

Round Robin

18. Which 64-bit server operating systems are compatible with the Dell Storage Manager (DSM) Client?

Red Hat Enterprise Linux 6, Windows Server 2012 R2, and Windows Server 2008 R2

Windows Server 2008 R2, Windows Server 2012 R2, and Windows 2016

Windows Server 2008 R2, Red Hat Enterprise Linux 7, and Windows Server 2012 R2

Red Hat Enterprise Linux 6, Windows Server 2016, and Windows Server 2008 R2

19. Which method can be used to identify the server HBA WWN?

Brocade Web Tools “Port Admin” tab

Dell Storage Manager Data Collector

Dell Storage Manager Client

QConverge Console GUI

20.

Based on the exhibit, a customer is using Virtual Port Mode. If the primary path for the controller on the “left” is disconnected while running an IOmeter test for a volume owned by the “left” controller, will the system survive failover?

Yes, Virtual Port Mode will failover the I/O through the other available paths.

No, Virtual Port Mode does not support port failover.

No, the system does not have reserved paths to perform failover.

Yes, the reserved path will be active and I/O will continue.

Page 3 of 3

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

Port Down Retry Count and Enable LIP Reset

Enable Target Reset and Login Retry Count

Port Down Retry Count and Enable Target Reset

LUNs Per Target and Port Down Retry Count

22. A customer wants to configure a threshold alert definition.

Which types of definitions can be configured?

Latency, Disks, and Replication

Storage, Latency, and Disks

Storage, Replication, and Hardware

I/O Usage, Storage, and Replication

23. DRAG DROP

You have just deployed an SC Series array in Virtual Port Mode.

What is the correct sequence of steps to perform an array port failover test?

24. What is the maximum memory supported on a single SC9000 controller?

64 GB

96 GB

128 GB

256 GB