DES-1721 Online Practice Questions and Answers

DRAG DROP

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

Select and Place:

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

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

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

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

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 SSDs

4.0 TB and larger for HDDs

B. 4.0 TB and larger for SSDs

2.0 TB and larger for HDDs

C. 4.0 TB and larger for SSDs

4.0 TB and larger for HDDs

D. 8.0 TB and larger for SSDs

2.0 TB and larger for HDDs

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?

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.

Which command is used to assign the DNS server IP address 10.10.10.12 on an SC9000 during the initial configuration?

A. controller ipconfig 10.10.10.12

B. net dns init 10.10.10.12

C. controller dnsserver 10.10.10.12

D. ifconfig inet 10.10.10.12

A user wants to create a custom snapshot profile for a volume however they cannot. Why?

A. User is logged into Remote Data Collector

B. User cannot change the Snapshot Profile of a Volume once is created and mapped to a server

C. User must set SC user preferences to allow Snapshot Profiles to be selected when creating volumes

D. User is logged in as Volume Manager

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?

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

When setting up MPIO with Live Volumes what policy should be selected when configuring a Windows 2016 server?

A. Weighted Path

B. Least Queue Depth

C. Round Robin with Subset

D. Round Robin

A customer has a space of 20U available on the rack that already houses a SCv3020 array. How many expansion SCv360 enclosures can be installed in the available space?

A. 1

B. 2

C. 3

D. 4

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

A. SAS chain length

B. Volume size

C. Asynchronous replication performance

D. Spindle count

When installing DSM using an external SQL database what is a mandatory requirement?

A. Windows authentication

B. Mixed mode authentication

C. Microsoft SQL Server 2016

D. Microsoft SQL Server 2012

What three core features are part of the protection bundle?

A. Live Volume, Remote Instant Replay, Replay Manager

B. Data Progression, Remote Instant Replay, Replay Manager

C. Live Volume, Data Progression, Replay Manager

D. Live Volume, Remote Instant Replay, FastTrack