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Q1. On the first day after the Storage Center is installed, the engineer begins copying data to it. The engineer uses the default Replay Profile and Data Progression settings. The engineer notices that the system did take replays, but no data has been restriped in Tier 1.
What is the cause of the problem?
A. The volumes are NOT mapped to servers.
B. Replays were created before Data Progression.
C. The system can NOT restripe data because it has only one tier of storage.
D. Data Progression occurred beforethe replays were created.
Answer: C
Q2. Refer to the exhibit.
The user expires Replay 2. Which page(s) are deleted?
A. A1
B. B, D, and E
C. A1 and C1
D. C1
Answer: A
Q3. 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
Q4. An engineer updates the SCOS version from 6.5.x to 6.6.x on an SC4020 via ISO. The engineer uses the following credentials: admin / admin. The engineer calls Dell Support for final health checks and is informed that a newer SCOS 6.6.x version is available. The engineer tries to perform another ISO update to the newest SCOS 6.6.x version. The engineer is unable to log back in to the BMC interface to start the ISO update.
What should the engineer do to update the newest SCOS version via ISO?
A. use the login credentials root/ calvin in SCOS 6.6.x
B. update Java to version 8 to use the updated BMC interface
C. downgrade Java to version 7 from version 8
D. request Dell Support to reset the expired admin password
Answer: A
Q5. An administrator needs to configure the Data Collector to use a MS SQL 2008 server. The administrator has entered a local user account for the database credentials. The administrator receives the following error: “Can’t log in to the database”.
Which credentials should the administrator provide to fix this problem?
A. sa account credentials
B. domain user account credentials
C. domain backup account credentials
D. local administrator account credentials
Answer: B
Q6. 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
Referencehttps://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ah 28)
Q7. 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
Q8. 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
Q9. Immediately after creating a volume, which workflow disables the Dynamic Capacity on a specific volume?
A. Within system properties, uncheck the item “Dynamic Capacity”.
B. Within volume properties, uncheck the option “Thin Provision”.
C. Right-click on the desired volume and select “Preallocate Storage”.
D. Right-click on the volume and select “Disable ThinProvision”.
Answer: D
Q10. 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
Referencehttps://technet.microsoft.com/en-us/library/ee619734(v=ws.10).aspx
Q11. Refer to the exhibit.
A technician is performing an SC8000 ISO update to the latest SCOS version. The technician logs into the iDRAC, selects the ISO file, and reboots the controller. The screen appears as shown.
What should be the technician’s next step?
A. Type “Maintenance” and press “Enter” to provide a menu of installation choices.
B. Type “Installer” and press “Enter” to show a Maintenance menu.
C. Type “Setup” and press “Enter” for a menu of update options.
D. Type “Exit” andpress “Enter” to reset the controller and allow access to the Boot Manager menu.
Answer: C
Q12. A customer has replication configured between its primary and DR sites. When does a customer need to update QoS node settings?
A. A security audit has found a substantial portion of unencrypted traffic between sites.
B. The number of volumes being replicated between sites has doubled.
C. Additional storage capacity was added to the production system.
D. The bandwidth between sites has been upgraded.
Answer: D
Q13. 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
Q14. An engineer has created a replay profile in which one replay is taken every 10 minutes. The expiration time is set to 1 week. The engineer needs to improve space utilization without changing the 10-minute interval between the replays.
Which step should the engineer take to meet the requirement?
A. decrease the expiration time
B. select the option Allow Replays to coalesce into active Replay
C. set minimum Allowed Replay Interval to 15 minutes
D. change the interval to 24hours
Answer: B
Q15. 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
Q16. What should be selected on the IO card change wizard during an upgrade if the slot/port combination is no longer used?
A. IO card changed
B. IO card has been removed
C. Configure IO card
D. Configure new zone
Answer: C
Q17. A storage array is configured with four front-end ports on each controller (in a dual-controller configuration) for server connectivity. The storage array runs in Legacy Port mode. An engineer needs to provide multi-pathed (2 fabrics) connectivity from the storage array to the server.
What is the minimum number of fault domains required?
A. 8
B. 2
C. 4
D. 6
Answer: B