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DELL EMC DES-1721 Specialist – Implementation Engineer, SC Series Exam Online Training

Question #1

You are installing a new SC9000.

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

  • A . Connect through the iDRAC port
  • B . Connect through a null modem cable to the serial port
  • C . Connect through the Dell Storage Manager Client
  • D . Connect through the supplied proprietary serial cable to the serial port

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Correct Answer: D
Question #2

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

A)

B)

C)

D)

  • A . Configuration A
  • B . Configuration B
  • C . Configuration C
  • D . Configuration D

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Correct Answer: A
Question #3

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

What is a requirement to accomplish this task?

  • A . NPIV must be disabled on Fibre Channel switches
  • B . I/O Controller cards must use a single-ID firmware version
  • C . Fibre Channel switches must use a switched fabric topology
  • D . Activation license must be purchased and installed

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Correct Answer: D
Question #4

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

  • A . FTP, SFTP, and Web Tools
  • B . USB, FTP, and SFTP
  • C . USB, FTP, and Web Tools
  • D . USB, SFTP, and Web Tools

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Correct Answer: C
Question #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?

  • A . Configure as a Primary Data Collector
  • B . Configure as a Remote Data Collector
  • C . Migrate the DSM database manually
  • D . Migrate from the existing Data Collector

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Correct Answer: D
Question #6

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

  • A . CentOS 7
  • B . Windows Server 2012 R2
  • C . VMware
  • D . Windows Server 2010 R2

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Correct Answer: C
Question #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?

  • A . 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
  • B . Use a separate VLAN or switches for iSCSI trafficAuto-negotiate for all switchesEnsure switches used for iSCSI are of a non-blocking design
  • C . 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
  • D . Use a separate subnet or switches for iSCSI trafficAuto-negotiate for all switchesEnsure switches used for iSCSI are of a blocking design

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Correct Answer: C
Question #8

DRAG DROP

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

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Correct Answer:


Question #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?

  • 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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Correct Answer: B
Question #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?

  • A . Switches used for replication are restarting
  • B . QoS Bandwidth Limit is enabled in the QoS node
  • C . Data Progression is consuming all disk performance
  • D . Automatic report creation is impacting replication

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Correct Answer: B

Question #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?

  • A . Hardware > Disks > [disk folder] > [disk number]
  • B . Charting > Disks > [disk folder] IO Charts
  • C . Charting > Disks > [disk folder] > [disk number]
  • D . Hardware > Disks > [disk folder]

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Correct Answer: A
Question #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?

  • A . 1x SC280 drive bay
  • B . 2x SC180 drive bays
  • C . 4x SC220 drive bays
  • D . 8x SC200 drive bays

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Correct Answer: D
Question #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?

  • A . Check the network connections to the missing Storage Center
  • B . Reinstall the DSM including the database
  • C . Connect the DSM to the Data Collector
  • D . Restart the missing Storage Center

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Correct Answer: D
Question #14

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

  • A . 120
  • B . 128
  • C . 192
  • D . 196

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Correct Answer: D
Question #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?

  • A . ifconfig inet set eth0 ip 192.168.0.160
    ifconfig inet set eth0 netmask 255.255.255.0
    ifconfig inet set eth0 gateway 192.168.0.1
  • B . ifconfig inet set eth1 ip 192.168.0.160
    ifconfig inet set eth1 netmask 255.255.255.0
    ifconfig inet set eth1 gateway 192.168.0.1
  • C . controller ipconfig set eth0 ip 192.168.0.160
    controller ipconfig set eth0 netmask 255.255.255.0
    controller ipconfig set eth0 gateway 192.168.0.1
  • D . platform bmc set ip 192.168.0.160
    platform bmc set netmask 255.255.255.0
    platform bmc set gateway 192.168.0.1

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Correct Answer: D
Question #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?

  • A . Zone 1 = All Source Virtual Port WWNs + All Remote Physical Port WWNs
    Zone 2 = All Source Physical Port WWNs + All Remote Virtual Port WWNs
  • B . Zone 1 = All Physical WWNs from both arrays
    Zone 2 = All Virtual WWNs from both arrays
  • C . Zone 1 = All Source WWNs + All Remote Virtual Port WWNs
    Zone 2 = All Source WWNs + All Remote Physical Port WWNs
  • D . Zone 1 = All Source Virtual Port WWNs + All Remote Port WWNs
    Zone 2 = All Source Physical Port WWNs + All Remote Port WWNs

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Correct Answer: B
Question #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?

  • A . Fail Over Only
  • B . Weighted Paths
  • C . Round Robin with Subset
  • D . Round Robin

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Correct Answer: D
Question #18

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

  • A . Red Hat Enterprise Linux 6, Windows Server 2012 R2, and Windows Server 2008 R2
  • B . Windows Server 2008 R2, Windows Server 2012 R2, and Windows 2016
  • C . Windows Server 2008 R2, Red Hat Enterprise Linux 7, and Windows Server 2012 R2
  • D . Red Hat Enterprise Linux 6, Windows Server 2016, and Windows Server 2008 R2

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Correct Answer: C
Question #19

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

  • A . Brocade Web Tools “Port Admin” tab
  • B . Dell Storage Manager Data Collector
  • C . Dell Storage Manager Client
  • D . QConverge Console GUI

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Correct Answer: C
Question #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?

  • A . Yes, Virtual Port Mode will failover the I/O through the other available paths.
  • B . No, Virtual Port Mode does not support port failover.
  • C . No, the system does not have reserved paths to perform failover.
  • D . Yes, the reserved path will be active and I/O will continue.

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Correct Answer: B

Question #21

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

  • 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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Correct Answer: C
Question #22

A customer wants to configure a threshold alert definition.

Which types of definitions can be configured?

  • 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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Correct Answer: D
Question #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?

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Correct Answer:


Question #24

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

  • A . 64 GB
  • B . 96 GB
  • C . 128 GB
  • D . 256 GB

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Correct Answer: D
Question #25

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
Question #26

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

A)

B)

C)

D)

  • A . Configuration A
  • B . Configuration B
  • C . Configuration C
  • D . Configuration D

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Correct Answer: D
Question #27

To achieve redundancy, how many connections from the same SC Series controller are required per fault domain?

  • A . 1
  • B . 2
  • C . 3
  • D . 4

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Correct Answer: A
Question #28

You are implementing a front-end connection in Legacy Port Mode on an SC4020 in a SAN with two iSCSI switches.

What is the minimum number of port(s), per switch, that can be used by each controller?

  • A . One port on each Ethernet switch
  • B . Two ports on each Ethernet switch
  • C . Four ports on each Ethernet switch
  • D . Eight ports on each Ethernet switch

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Correct Answer: C
Question #29

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

  • 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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Correct Answer: C
Question #30

A customer is using an SC8000 array with three chained SC220 expansion enclosures on a single card. They need to expand its capacity by adding an SC280 enclosure.

How should the new expansion enclosure be connected using a minimum number of chains?

  • A . Add the SC280 to the same chain as the existing SC220 enclosures
  • B . SC280 enclosures cannot be mixed with other enclosures
  • C . Install a new SAS I/O card to connect the SC280 enclosure
  • D . Add the SC280 to a new chain on the same SAS I/O card

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Correct Answer: D

Question #31

You are deploying a new SCv2020 system with four additional SCv100 expansion enclosures.

What is the spare-to-managed drive ratio?

  • A . 1 spare for every drive of that type per enclosure
  • B . 1 spare for every 24 managed drives of that drive type
  • C . 1 spare per enclosure regardless of the drive type
  • D . 1 spare for every 20 managed drives of that drive type

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Correct Answer: D
Question #32

How many SC420 enclosures can be supported by the SC7020 controller?

  • A . 4
  • B . 8
  • C . 6
  • D . 12

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Correct Answer: B
Question #33

When configuring an SC Series array, why should a 4 MB data page size be selected?

  • A . When systems have large files with infrequent snapshots
  • B . This is the default data page size
  • C . This is an invalid data page size and cannot be selected
  • D . When applications have high performance needs

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Correct Answer: A
Question #34

A customer notices a volume is using an above average amount of Tier 1 RAID 10 space.

What can be done to force this data into a lower RAID set/Tier?

  • A . Stop I/O to the volume
  • B . Change the storage profile of the volume
  • C . Take a manual snapshot
  • D . Move data to a different volume

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Correct Answer: C
Question #35

Which SC Series licenses are applied at the factory?

  • A . SC4020 and SC7020
  • B . SC7020 and SCv2000
  • C . SC8000 and SC9000
  • D . SCv2000 and SC8000

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Correct Answer: B
Question #36

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
Question #37

When an RS-232 serial cable is connected between a service laptop and SC Series hardware, which parameters need to be selected?

  • A . Baud Rate = 9600, Parity = NoneData Bits = 8, Stop Bits =1, Flow Control = XON/XOFF
  • B . Baud Rate = 115200, Parity = NoneData Bits = 8, Stop Bits = 1, Flow Control = XON/XOFF
  • C . Baud Rate = 115200, Parity =NoneData Bits = 8, Stop Bits = 1, Flow Control = None
  • D . Baud Rate = 115200, Parity = EvenData Bits = 8, Stop Bits = 1, Flow Control = XON/XOFF

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Correct Answer: A
Question #38

DRAG DROP

What is the correct sequence of steps to present a volume to an ESXi host?

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Correct Answer:


Question #39

You are about to perform the post-setup tasks with the Storage-Center wizard.

What information is required before proceeding?

  • A . Customer contact information for the Storage Center
  • B . Management IPv4 address for the Storage Center
  • C . Email address for the default administrator
  • D . NTP server IPv4 address for the Storage Center

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Correct Answer: B
Question #40

DRAG DROP

What is the correct sequence of steps to enable MPIO on a Microsoft Windows 2012 Server?

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Correct Answer:


Question #41

While setting up replication, you see an option for “Replication Deduplication”.

What is the function of this option?

  • A . Provides the same function as Data Reduction, Deduplication
  • B . Compresses and deduplicates data prior to replicating
  • C . Replicates only the data that has changed in a page
  • D . Replicates the entire page and deduplicates on the destination system

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Correct Answer: C
Question #42

How much memory does the Dell Storage Manager (DSM) Virtual Appliance require to manage seven SC Series arrays?

  • A . 2 GB
  • B . 4 GB
  • C . 8 GB
  • D . 16 GB

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Correct Answer: B
Question #43

A customer wants to add an SC420 and an SC200 to a SC7020 storage array.

What is the recommended approach to adding the new enclosures?

  • A . One single SAS chain connected to a 6 Gb SAS card
  • B . One single SAS chain connected to a 12 Gb SAS card
  • C . Two separate SAS chains connected to a 6 Gb SAS card
  • D . Two separate SAS chains connected to a 12 Gb SAS card

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Correct Answer: D
Question #44

Refer to the Exhibit.

A customer needs your assistance in recovering files that were deleted from an SC Series array volume. The files were deleted around 1:00 AM on January 7th.

Based on the exhibit of the Dell Storage Manager (DSM), which recommendation allows the customer to recover the most recent deleted files?

  • A . Take a manual snapshot and then select “Create Volume from Snapshot”
  • B . Select “Create Volume from Snapshot” taken on January 7 and map to a server
  • C . Recover from backup, deleted files are unrecoverable from the storage array
  • D . Select “Create Volume from Snapshot” taken on January 6 and map to a server

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Correct Answer: D
Question #45

Refer to the Exhibit.

A customer has asked you to perform a port failover test to demonstrate system resiliency.

What is needed to complete this task?

  • A . Add more cables per switch
  • B . Switch to Legacy Port Mode
  • C . Add more switches per controller
  • D . Switch to Virtual Port Mode

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Correct Answer: C
Question #46

When installing an SC Series array, the customer indicated that they want the controller configured to provide the maximum amount of storage space. You discover that the storage controller was shipped with twelve 900 GB drives and twelve 1.8 TB drives of the same type.

Which redundancy level can be selected to provide the maximum amount of storage?

  • A . Put equal size drives in their own pagepool. Change the default redundancy level for the 1.8 TB drives.
  • B . Put all drives in the same tier. Keep the default redundancy level for both the 900 GB and 1.8
    TB drives.
  • C . Put equal size drives in their own tier. Change the default redundancy level for the 900 GB drives.
  • D . Put equal size drives in their own pagepool. Keep the default redundancy level for both the 900 GB and 1.8 TB drives.

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Correct Answer: C
Question #47

To allow the Storage Center Update Utility (SCUU) to serve updates, which inbound TCP port should be opened on the Microsoft Windows firewall?

  • A . 443
  • B . 3033
  • C . 8443
  • D . 9005

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Correct Answer: D
Question #48

You are testing a new SC7020 storage array. You decided to deploy a temporary installation of Dell Storage Manager (DSM) Data Collector with an embedded database.

What is the maximum number of days in which array information can be retained?

  • A . 15 days
  • B . 30 days
  • C . 60 days
  • D . 90 days

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Correct Answer: B
Question #49

When performing the initial configuration on an SC9000 through the serial port, which command is used to reboot the controller?

  • A . qle factoryreset 5 0
  • B . cs purge all
  • C . -reset
  • D . -restart

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Correct Answer: A
Question #50

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

  • 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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Correct Answer: D

Question #51

What is the purpose of the Dell Storage Manager (DSM) Server Agent?

  • A . Installed on Microsoft Windows servers to replicate data to cloud services
  • B . Installed on any server OS to easily present and manage mapped volumes
  • C . Installed on only Linux servers to easily present and manage mapped volumes
  • D . Installed on only Microsoft Windows servers to easily present and manage mapped volumes

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Correct Answer: D
Question #52

Which component of the Dell Storage Manager (DSM) Suite’s only purpose is to perform disaster recovery?

  • A . Dell Storage Manager Remote Data Collector
  • B . Dell Storage Manager Primary Data Collector
  • C . Dell Storage Manager Server Agent
  • D . Dell Storage Manager Client

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Correct Answer: A
Question #53

You are deploying a new SC9000 system running Storage Center OS 7.2.

At which drive size does the system require you to begin running dual redundancy on both SSDs and HDDs?

  • A . 2.0 TB and larger for SSDs4.0 TB and larger for HDDs
  • B . 4.0 TB and larger for SSDs2.0 TB and larger for HDDs
  • C . 4.0 TB and larger for SSDs4.0 TB and larger for HDDs
  • D . 8.0 TB and larger for SSDs2.0 TB and larger for HDDs

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Correct Answer: B
Question #54

Why should Legacy Port Mode be selected rather than Virtual Port Mode on an SC Series storage array?

  • A . Virtual Port Mode requires NPIV support
  • B . Legacy Port Mode is easier to set up and more reliable
  • C . Virtual Port Mode is difficult to set up
  • D . Virtual Port Mode does not support ALUA

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Correct Answer: C
Question #55

In an SC Series environment, which Fibre Channel zoning method is more flexible?

  • A . Port
  • B . Single Initiator/Multi-Target
  • C . Single Initiator/Single Target
  • D . WWN

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Correct Answer: D
Question #56

What is a licensed feature of Dell Storage Manager?

  • A . Data Center Bridging (DCB) Support
  • B . Storage-based Chargeback
  • C . Replication and Live Volumes
  • D . Data Reduction

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Correct Answer: B
Question #57

A customer has a dual controller system, two independent Fibre Channel switches, and six servers all multipathed.

How many zones should be present on each for the SAN to run properly in Virtual Port Mode?

  • A . 6
  • B . 8
  • C . 12
  • D . 16

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Correct Answer: D
Question #58

What is a requirement for installing the Dell Storage Manager (DSM) Virtual Appliance?

  • A . Must be installed on a standalone ESXi Hypervisor
  • B . Must be installed on a vVols datastore
  • C . Must be installed on a standalone Hyper-V Hypervisor
  • D . Must be installed on a standard datastore

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Correct Answer: D
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