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These 10 free D-UN-DY-23 questions are organized by exam domain, so you can see how each part of the Dell Unity Deploy 2023 blueprint is tested. Reveal the answer and explanation under each question.
During deployment acceptance, a Linux host reports two active/optimized paths through SP A and two active/nonoptimized paths through SP B for a Unity XT LUN owned by SP A. No paths are failed and no I/O errors are present. An installer wants to remove the SP B paths. What response should the reviewer give?
Correct answer: B - Retain both SPs' paths and let ALUA-aware multipathing prefer the optimized group.
SP B cannot enter Normal Mode on a Unity XT array because its stored operating-environment image is corrupt. Hardware checks are clean. SP A is healthy, has sufficient resources, and is serving all host I/O through verified paths. Recovery must preserve the pools and host configuration without taking SP A out of service. Which operation is appropriate?
Correct answer: A - Place SP B in Service Mode and reimage that SP.
LUN creation and resizing for already registered hosts will move to the operations team. New host registration and management of Unity users and groups must stay with a separate administration team. Assign the role that permits the first set of tasks without permitting the second.
Correct answer: D - Storage Administrator
A failed drive in an all-flash Unity XT dynamic pool has not yet been replaced. No unused drives are installed, but the rebuild has completed and the affected RAID extents are no longer degraded. How did the pool restore RAID protection?
Correct answer: C - Missing extents were reconstructed in distributed spare space within the same drive partnership group.
After a server's HBA replacement, both FC fabrics show the new WWPNs logged in to Unity XT target ports. A rescan finds none of the server's previously assigned LUNs. Unisphere still lists the old WWPNs in the existing host object, whose LUN assignments are unchanged. Select the repair that preserves those assignments.
Correct answer: D - Associate the replacement WWPNs with the existing Unity host object, then rescan the server.
A proposed Windows-to-Unity iSCSI design copies the array's NAS setup: aggregate Unity Ethernet ports with LACP and put one iSCSI target on the aggregate. The server must retain storage access after either a link failure or an SP failure. How should this design be changed?
Correct answer: B - Use independent iSCSI paths to both SPs and manage those paths with Windows multipathing.
Four workloads on a Unity XT 480 hybrid array are being reviewed for FAST Cache. Pool capacity and SP CPU utilization are not limiting performance. Which workload offers the strongest case for enabling the feature?
Correct answer: A - An order-entry pool repeatedly accessing random blocks on its SAS hard drives
The acceptance test for a new Unity records archive requires locked files to survive an authorized storage administrator's attempt to delete the entire file system before retention expires. Choose the configuration that enforces this requirement.
Correct answer: D - Create an FLR-C file system and lock records for the required retention period.
The newest recoverable image in a Unity asynchronous replication session represents source data as of 09:32. Its transfer finished at 09:41. The source fails at 09:52, before the next update completes; the configured RPO is 10 minutes. Which potential data-loss window should the recovery team report?
Correct answer: B - Up to 20 minutes of updates, measured from the recoverable image's source timestamp.
A designer asks to recover one deleted drawing from a Unity SMB share. Yesterday's read-only snapshot contains it, but hundreds of other files have since changed. The recovery account can open that snapshot through Windows Previous Versions and write to the production share. How can the drawing be recovered with the least disruption while keeping everyone else's current work?
Correct answer: C - Copy the drawing from Previous Versions into the production share.
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