Dell PS Series Storage Professional (DSDPS-200) Free Practice Test

Question 1

A customer buys two PS Series arrays to store data for the database servers. One array has 15K RPM disks configured as RAID 10, and the other array has 10K RPM disks configured as RAID 6. This system was chosen to meet the need to data capacity and a very high anticipated level of IOPs.
The customer reports that database servers run business critical applications. Performance is a priority for these databases. A large data warehouse holds historical data from the business used to mine data.
Which two configurations provide the fastest performance to meet the customer requirements? (Choose two.)

A. Create one pool and assign RAID preference to RAID 10 for priority applications.

B. Create two pools, and place all log file volumes in the 15K pool and all database volumes on the 10K disks.

C. Create one pool and set a high priority level on all business volumes.

D. Create two pools, place the priority volumes on the 15K disks, and place the data warehouse volumes on the 10K disks.

E. Create one pool and let the load balancers manage page placement.

Correct Answer: A,D

Question 2

A customer has a single-member group with a RAID policy of RAID 6 in the default storage pool. A second member with a RAID policy of RAID 10 is added.
What are two valid ways to add the second member? (Choose two.)

A. add the new member with RAID 10 to a new/separate storage pool

B. add the new member to the group transitioning the RAID policy of the existing pool to RAID 10

C. add the new member to the default pool transitioning the new member to match the default storage pool RAID policy

D. add the new member with RAID 10 to the default storage pool

Correct Answer: A,B

Question 3

An engineer needs to migrate a volume from a live production pool to a newly created pool, but is unable to do so.
What must the engineer do before the migration can start?

A. Disable encryption on the group

B. Offline the volume before migrating.

C. Disconnect active iSCSI sessions to the volume

D. Add or move a member to the new pool.

Correct Answer: D

Question 4

An installer deploys a new environment that consists of a single hybrid array with a mix of SSDs and 10K disks. The installer initially connects several servers that run transactional data. The installer then migrates a large amount of file data to the new array. The servers perform very well for the first few hours.
The performance then drops suddenly and significantly. The database administrator reports that the latency has suddenly increased beyond what was expected.
What is the cause of the sudden drop in performance?

A. The overall load on the array exceeded the capability that the model was intended to handle.

B. Hybrid arrays do NOT perform well with sequential writes such as file data.

C. After the SSD capacity was full, new writes were directed to slower spinning disks.

D. The SSDs have exceeded the wear level specifications, which causes a noticeable drop in write performance.

Correct Answer: C

Question 5

As part of failover testing, a technician restarts one of the two iSCSI switches between a single member group and a single server. The two iSCSI switches are lagged together. After the technician restarts the switch, ping <array ip> from the server fails to the array port IPs connected to the restarted switch.
What is the most likely cause of the problem?

A. The switch needs to be set for jumbo frames.

B. The array port needs to auto-negotiate speed.

C. The array needs to be configured for flow control.

D. The switch configuration needs to be saved.

Correct Answer: A

Question 6

A SQL administrator needs to deploy two databases: one for sales transactions and one for inventory.
Which two topologies prevent a Torn Smart Copy from being created if one of them were restored with
Auto Snapshot Manager? (Choose two.)

A. Create two array volumes. Place each database on separate volumes and place both of the transaction logs on the local C: drive.

B. Create two array volumes and two local volumes. Place each database on separate array volumes and place the two transaction logs on separate local volumes.

C. Create two array volumes. Place both databases on volume A and place both transaction logs on volume

D. Create three array volumes. Place the transaction logs for both on volume A, place the database for sales on volumes B, and place the database for inventory on volume

E. Create four array volumes. Separate the databases and transaction logs on the four separate volumes.

Correct Answer: A,C

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Dell PS Series Storage Professional (DSDPS-200) Free Practice Test