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DES-1721 Exam Questions

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QUESTION 1
You have installed the Dell Storage Manager (DSM) Client first and then the Data Collector. When attempting to
connect to the newly installed Data Collector, you receive an error message, saying: no connection could be
established. What could be the cause of this error?
A. Firewall is blocking database connection of the Data Collector.
B. Wrong login credentials have been entered into the DSM Client.
C. Data Collector service may not have completely started.
D. Incompatible version of DSM Client was installed.
Correct Answer: C

QUESTION 2
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?
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
Correct Answer: C

QUESTION 3
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
Correct Answer: B

QUESTION 4
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
Correct Answer: D

QUESTION 5
Which Live Volume Requirement or Best Practice is necessary for disaster recovery?
A. Primary and Secondary Storage Centers configured in Unisphere for SC Series
B. QoS defined on the Primary system
C. Licensed Live Volume on secondary Storage Center
D. Fibre Channel or iSCSI with a round trip latency of less than 10 ms
Correct Answer: D
Reference: https://www.dell.com/storagehelp/dellstorageclient/2016R3.10/en-us/GUIDB24ADB33-10CD-4AE1-8A2E-4489C19983E1.html

QUESTION 6
Which user type can create and map volumes using servers and disk folders that have already been created?
A. FSE
B. Root
C. Reporter
D. Volume Manager
Correct Answer: D

QUESTION 7
Which datapage size options are available for SC Series arrays?
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
Correct Answer: B
Reference https://www.dell.com/storagehelp/dellstorageclient/2016R2/en-us/GUID-16CA643E-2093-409FAAC3-8E88066E2E0F.html

QUESTION 8
How many SC220 enclosures can be supported by an SC4020 storage array?
A. 7
B. 9
C. 14
D. 15
Correct Answer: A
Reference https://usermanual.wiki/Dell/dellcompellentsc4020.2121632308.pdf

QUESTION 9
Which feature is included on SC9000 storage arrays?
A. SED/FIPS Secure Data
B. Data Reduction
C. Data Progression
D. Asynchronous Replication
Correct Answer: C
Reference: https://www.dell.com/en-us/work/shop/povw/storage-sc9000

QUESTION 10
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
Correct Answer: A
Reference: https://www.google.com/url?sa=tandrct=jandq=andesrc=sandsource=webandcd=3andcad=rjaanduact=8and
ved=2ahUKEwi3q7b4saPcAhXlyYUKHeA7DwQQFjACegQIAhACandurl=http%3A%2F%2Fen.community.dell.com%2Fcfs-file%2F__key% 2Ftelligent-evolution-components-attachments%2F13-4491-00-00-20-43-80-40%2FSC_2D00_Series_2D00_storage_2D00_MySQL_2D00_best_2D00_practices_2D00_Dell_2D00_2016_2D002800_3063_2D00_BP_2D00_O_2900_.pdf%3Fforcedownload%3Dtrueandusg=AOvVaw2rmM_IZMcWAd0miqxbdnz7

QUESTION 11
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
Correct Answer: D
Reference: http://topics-cdn.dell.com/pdf/dell-compellent-sc4020_administrator-guide9_en-us.pdf (PAGE 5)

QUESTION 12
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
Correct Answer: D

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