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EMC DES-1721 Specialist - Implementation Engineer-SC Series Exam Exam Practice Test

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Total 147 questions

Specialist - Implementation Engineer-SC Series Exam Questions and Answers

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Question 1

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

Options:

A.

Legacy Port Mode

B.

ISNS

C.

ALUA

D.

Virtual Port Mode

Question 2

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?

Options:

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

Question 3

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

Options:

Question 4

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?

Options:

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

Question 5

After the implementation of a DR site with Synchronous replication all applications were up and running fine. The restore points were saved and validated; DR was predefined and successfully tested. Sometime later, one of the applications became unresponsive and initial troubleshooting points to Storage/Volume as the root cause.

Concerning the Replication to the DR site, what could be happening?

Options:

A.

Customer must switch to asynchronous replication as volumes tied to applications should not be synchronous replicated.

B.

The synchronous replication has been set to High Consistency and the link between the two sites is down.

C.

Unresponsive applications cannot be related to any DR or Replication practices

D.

Only asynchronous replication can possibly have a negative impact to volumes and applications if the link is down

Question 6

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

Question 7

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

Options:

A.

CentOS 7

B.

Windows Server 2012 R2

C.

VMware

D.

Windows Server 2010 R2

Question 8

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?

Options:

A.

Add more cables per switch

B.

Switch to Legacy Port Mode

C.

Add more switches per controller

D.

Switch to Virtual Port Mode

Question 9

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

Options:

A.

4

B.

8

C.

6

D.

12

Question 10

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

Question 11

Which best practices should be followed when using iSCSI to connect SC Series arrays and hosts?

Options:

A.

Use dedicated switches for iSCSI.Two separate VLANS for multipathed iSCSI using separate IP subnets.Gigabit full duplex between Storage Center and all local servers.

B.

Use separate IP subnets for multipathed iSCSI separated by VLANS when using the same switch.Gigabit full duplex between Storage Center and all local servers

C.

Use separate switches for iSCSI.Two separate VLANs for multipathed iSCSI using separate IP subnets.Unicast and multicast storm control enabled on all iSCSI switches.

D.

Use separate VLANs for multipathed iSCSI using separate IP subnets when using the same switch.Bi-directional flow control disabled between Storage Center and servers.

Question 12

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

Options:

A.

120

B.

128

C.

192

D.

196

Question 13

Which redundancy option is available for drives on an SC7020 storage array?

Options:

A.

Dual redundancy is the default for all drives

B.

Single redundancy is the default for all drives

C.

Single or dual redundancy for 1.8 TB up to 3.9 TB drives

D.

Single or dual redundancy for 4 TB and higher drives

Question 14

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

Question 15

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

Question 16

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?

Options:

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

Question 17

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

Options:

A.

2 GB

B.

4 GB

C.

8 GB

D.

16 GB

Question 18

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

Options:

A.

64 GB

B.

96 GB

C.

128 GB

D.

256 GB

Question 19

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

Question 20

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

Options:

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

Question 21

You recently added a second Storage Center to your network. Both systems were added to DSM, and you can ping the iSCSI ports of the remote system. You are planning to replicate between your two systems, but you cannot get the Replication Wizard to launch.

What item is missing?

Options:

A.

Data Progression is not running on both systems

B.

Deduplication is enabled on the source system

C.

Both systems do not have a QoS setting enabled

D.

Remote Instant Replay license has not been applied

Question 22

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

Options:

A.

1

B.

2

C.

3

D.

4

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Total 147 questions