Test Information:
Total Questions: 120
Test Number: DSDSC-200
Vendor Name: DELL
Cert Name: DELL
CERTIFIED PROFESSIONAL
Test Name: Dell SC Series Storage Professional Exam
Official Site: https://www.certschief.com/
For
More Details: https://www.certschief.com/exam/DSDSC-200/
Question: 1
An engineer has installed a Storage
Array with a Tier 1 consisting of SSDs.
What should the engineer do to
optimize performance for I/O workloads utilizing this Tier?
A. Disable write cache on volumes.
B. Convert Tier 1 to RAID 0.
C. Segregate the SSDs to a separate
disk folder.
D. Change the sector size from 512
to 4K.
Answer: A
Question: 2
An engineer has mapped a volume to
an existing Windows 2012 server. The engineer has configured zoning and
confirmed that all paths are correctly configured. The operating system can
only see one path within the MPIO software.
Which step should the engineer take
so that all paths are presented to the server?
A. download and install the MPIO
Manager
B. run the commandmpclaim.exe –i
–d“COMPELNTCompellent Vol “
C. change the Multipath IO (MPIO)
policy to Round Robin within MPIO Manager
D. change the operating system to
Windows 2012 Pro MPIO within the server properties on Storage Center
Answer: A
Explanation:
Reference:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjJn7yAmqHQAhXF1hoKHQAwBt8QFgg-MAE&url=http%3A%2F%2Fen.community.dell.com%2Fcfs-file%2F__key%2Ftelligent-evolution-components-attachments%2F13-4491-00-00-20-43-79-17%2FMicrosoft_5F00_MPIO_5F00_Best_5F00_Practices_5F002800_CML1004_29005F00_February2016_5F00_Update.pdf%3Fforcedownload%3Dtrue&usg=AFQjCNGUlpAK9xCDTL6w4iCDA90vY_5ERQ&sig2=_POFuUw9JhTx8f5AX4MP1A(page
28)
Question: 3
An engineer needs to configure a
VMware host. According to best practice, the engineer needs to enable a feature
by changing the variables QFullSampleSize and QFullThreshold. The engineer sets
those two parameters to the value of 0 in VMware ESXi 5.1 Patch 1 and later
versions.
Which feature is enabled?
A. Adaptive queue depth
B. Enhanced Transmission Selection
(ETS)
C. Asymmetric logical unit access
(ALUA)
D. Priority Flow Control (PFC)
Answer: A
Explanation:
At times of high congestion, VMware
has an adaptive queue depth algorithm that can be enabled with the
QFullSampleSize and QFullThreshold variables. These variables aid in relieving
the congestion by dynamically reducing and increasing the LUN queue depth. Due
to the architecture of SC Series storage, enabling these settings is not
recommended unless under the guidance of Dell Copilot Support or Dell Support
Question: 4
An engineer needs to configure a
server. The server is connected to a Storage Center via iSCSI using or more
hardware iSCSI host bus adapters. If connectivity is lost due to controller
failover, the server needs to reconnect to the Storage Center iSCSI target
ports.
Which HBA feature must be enabled
to meet the requirement?
A. Delayed ACK
B. Spin Up Delay
C. ARP Redirect
D. MAC Spoofing
Answer: C
Question: 5
A customer has mapped a volume to a
ESX server using two 8 Gb Fibre Channel (FC) paths. The customer needs the
traffic to split equally across the two FC paths.
Which ESX Multi-pathing policy
should be used?
A. Least Queue Depth
B. Most Recently Used (MRU)
C. Round Robin
D. Fixed
Answer: C
Question: 6
An engineer is performing failover
testing on an FC-attached, dual-controller SC8000 system. The engineer notes
that the customer’s Windows 2008 R2 servers experience I/O errors. The RHEL and
ESX servers experience no problems.
A11 FC HBA timeouts are configured
per Dell best practices. The Windows servers that are experiencing issues have
had no OS-level configuration changes related to SAN storage. All servers use
the same FC fabric.
What is causing the connectivity
loss during failover?
A. An incorrect OS type was
selected when the Windows server objects were created.
B. The windows Disk TimeoutValue is
NOT set correctly.
C. NPIV is NOT enabled on Storage
Center FC local ports.
D. The FC cables plugged into the
Windows servers have RX and TX reversed.
Answer: B
Question: 7
A customer has mapped a volume to a
Windows 2008 server using two 16 Gb FC paths and two 1 Gb iSCSI paths. The
customer needs the traffic to split equally across only the two FC paths
without using iSCSI under normal conditions. If the FC network is down, traffic
should failover to the iSCSI paths to maintain connectivity.
Which Windows 2008 multi-pathing
policy should be used?
A. Round Robin With Subset
B. Fail Over Only
C. Least Queue Depth
D. Round Robin
Answer: A
Explanation:
Reference:
https://technet.microsoft.com/en-us/library/ee619734(v=ws.10).aspx
Question: 8
According to the best practices,
what are the correct values for the following parameters on a QLogic HBA?
A. Connection options:0 – Loop
onlyLoginretry count:60 attemptsPort down retry count:60 attemptsLink down
timeout:30 seconds
B. Connection options:1 –
point-to-point onlyLogin retry count:60 attemptsPort down retry count:60
attemptsLink down timeout:30 seconds
C. Connection options:1 –
point-to-point onlyLogin retry count:30 attemptsPort down retry
count:5attemptsLink down timeout:60 seconds
D. Connection options:0 loop
onlyLogin retry count:30 attemptsPort down retry count:30 attemptsLink down
timeout:30 seconds
Answer: C
Explanation:
Reference:
http://en.community.dell.com/techcenter/extras/m/white_papers/20437971/download(page
11)
Question: 9
A deployment technician has cabled
several enclosures on one chain: (1) SC200, (1) SC220, and (1) SC 280. When the
deployment technician tries to configure the Disk folder, some disks are
missing.
What is the cause of this problem?
A. A SC200 must be on a separate
chain from the SC220 and SC280.
B. The SC220 must be on a separate
chain from the SC200 and SC280.
C. The SC280 must be on a separate
chain from the SC200 and SC220.
D. There are too many disks on the
same chain.
Answer: C
Question: 10
An engineer needs to install an
LSI9206 SAS card in an existing SC8000 system that runs version 6.1.
Which step should the technician
take to install this IO module?
A. As a hot-add card, install the
card in any slot without powering down the controller.
B. Make sure that slots 1, 2, or3
are available because the card can NOT be installed in a full-height slot.
C. Download the LSI 9206 firmware
from the Compellent portal to apply to the card.
D. Update the SCOS to version 6.3
because this is the minimum version for this card to run.
Answer: C
Question: 11
A deployment technician needs to
install a dual-controller Storage Center with two Fibre Channel (FC) fabrics.
The site will run in Legacy mode.
What is the correct front-end
cabling?
A. option A
B. option B
C. option C
D. option D
Answer: D
Question: 12
The administrator notices that some
disks show as down intermittently. The disks are all in the same enclosure.
What is the problem?
A. Each disk drive must be
replaced.
B. The enclosure is powered off.
C. The SAS cable is NOT fully
seated.
D. The Disk folder is NOT properly
configured.
Answer: D
Test Information:
Total Questions: 120
Test Number: DSDSC-200
Vendor Name: DELL
Cert Name: DELL
CERTIFIED PROFESSIONAL
Test Name: Dell SC Series Storage Professional Exam
Official Site: https://www.certschief.com/
For
More Details: https://www.certschief.com/exam/DSDSC-200/
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