EMC DES-1D12 Online Practice Questions and Exam Preparation

EMC DES-1D12 Online Questions & Answers

• Question 61:

  A technical architect is working with a customer to design a Dell Unity XT solution The customer is concerned about enabling the data reduction storage service What system condition should the architect recommend for enabling data reduction?

  A. CPU utilization above 80%
  B. Free capacity at or less than 50% free capacity
  C. CPU utilization at or less than 50%
  D. Free capacity above 80%
  D. Free capacity above 80%

  ---

  Explanation/Reference:

  The technical architect should recommend enabling data reduction storage service when the system has free capacity above 80%. Data reduction technologies such as compression and deduplication reduce the amount of storage needed by eliminating duplicates and compressing data. However, these technologies can consume additional resources, particularly CPU. Enabling data reduction on a system that is already running low on free capacity would create additional resource contention and negatively impact performance.

• Question 62:

  A customer has invested much time using the Dell PS Series Host Integration Toolkit (HIT) to integrate SAN snapshot protection with Microsoft SQL Server native snapshot technology. The customer expresses concern about whether Dell

  EMC SC Series cross-platform replication supports that capability.

  What should be your response?

  A. Recreate integration on the SC Series array and use only SC-to-SC replication for those volumes.
  B. Leverage the integration investment and use only PS-to-PS replication on those volumes.
  C. Cross-platform replication works with SC Series HIT integrations.
  D. Cross-platform replication works with PS Series HIT integrations.
  B. Leverage the integration investment and use only PS-to-PS replication on those volumes.

  ---

  Explanation/Reference:

• Question 63:

  To which bus is the Dell EMC Unity 880F DPE connected?

  B. 49
  C. 89
  D. 99
  D. 99

  ---

  Explanation/Reference:

  The DPE on 480/F, 680/F, and 880/F systems is internally connected to Bus 99 which is a separate bus than the first SAS expansion port that is connected to Bus 0. Therefore, the DPE is recognized by the system as Bus 99 Enclosure 0 while the first DAE connected to the first SAS expansion port would be Bus 0 Enclosure 0. This is different than X00/F, X50F, and 380/F systems. Furthermore, this means that the twenty-five drives in front of the DPE for 480/F, 680/F, and 880/F systems are internally recognized as Bus 99 Enclosure 0 Drive 0 -Bus 99 Enclosure 0 Drive 24. In Unisphere, the drives are seen DPE Drive 0 -DPE Drive 24

• Question 64:

  When implementing FAST VP, which Dell EMC best practices should be followed?

  A. Use the Start High then Auto Tier policy Maintain at least 15 percent pool capacity
  B. Use the Auto Tier policy-Schedule relocations continually during normal operations
  C. Use the Start High then Auto Tier policy Maintain at least 10 percent pool capacity
  D. Use the Start High then Auto Tier policy Maintain at least 5 percent pool capacity
  C. Use the Start High then Auto Tier policy Maintain at least 10 percent pool capacity

  ---

  Explanation/Reference:

  Reference:https://www.dell.com/community/VNX/FAST-VP/td-p/6953079

• Question 65:

  What is the maximum number of SAS buses per SP for a Dell Unity XT 480F without an additional SAS I/O module1?

  A. 4
  B. 3
  C. 1
  D. 2
  D. 2

  ---

  Explanation/Reference:

  The maximum number of SAS buses per SP for a Dell Unity XT 480F without an additional SAS I/O module is 2. Each Dell Unity XT 480F has 2 Service Processors (SPs) and each SP has 2 SAS buses, for a total of 2 SAS buses per SP. SAS buses are used to connect the storage drives to the SPs and to the storage array. Each bus can support multiple drives and provide high-speed data transfer between the drives and the SPs.

• Question 66:

  From which Dell EMC storage system can a Dell EMC PowerStore array natively import data?

  A. VNX
  B. PowerVault
  C. VMAX
  D. VNX2
  D. VNX2

  ---

  Explanation/Reference:

  Reference: https://www.dell.com/support/manuals/en-my/powerstore-1000/pwrstr-import/importing-external-storage-to-powerstore-overview?guid=guid-6fef77c4-d4c9-49c6-8de2-efd67aa52ca5#:~:text=Importing%20external%20storage% 20to%20PowerStore%20is%20a%20migration%20solution%20tha t,Dell%20EMC% 20Unity%20Series

• Question 67:

  Which Dell EMC Unity feature provides network high availability with active-passive ports when provisioning File storage for a NAS client?

  A. Redundant Interfaces
  B. Preferred Interfaces
  C. Link Aggregation
  D. Fail-safe Networking
  D. Fail-safe Networking

  ---

  Explanation/Reference:

  Document: docu71319_dell-emc-unity-high-availability-a-detailed-review.pdf Page: 20 FAIL SAFE NETWORKING (FSN) Dell EMC Unity OE version 4.2.1 introduces Fail Safe Networking (FSN). FSN is a high availability feature that extends link failover into the network by providing switch-level redundancy. FSN appears as a single link with a single MAC address and potentially multiple IP addresses. FSN can consists of Ethernet ports, link aggregations, or any combination of the two. FSN adds an extra layer of availability to link aggregations alone as link aggregations provide availability in the event of a port failure while FSN provides availability in the event of a switch failure. Each port or Link aggregation is considered as a single connection and only the primary port or link aggregation in an FSN is active at a time. All ports in an FSN must have the same MTU size, but the speed and duplex settings can vary.

• Question 68:

  A Dell Unity XT 480F system ships with two embedded modules, one for each SP What does the embedded module provide?

  A. A Fiber Channel connectivity
  B. Field service only
  C. CNA connectivity
  D. Management
  D. Management

  ---

  Explanation/Reference:

  The embedded module in a Dell Unity XT 480F system provides management functionality for the system, such as control of the storage array, monitoring of system health and performance, and management of storage resources. This embedded module allows you to manage the system through an intuitive web-based interface or via command-line interface.

• Question 69:

  What is a consequence of using a 1.6 TB drive and five 400 GB drives in a Dell EMC Unity XT dynamic pool?

  A. Extents 9 - 19 are used to create the RAID Group
  B. Unisphere short strokes the 1.6 TB drive to 8 extents
  C. Extents 9 - 19 are marked unavailable until more 1.6 TB drives are added
  D. Extents 9 - 19 are marked unavailable and can never be recovered
  C. Extents 9 - 19 are marked unavailable until more 1.6 TB drives are added

  ---

  Explanation/Reference:

  Reference:https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h16289-dell_emc_unity-dynamic_pools.pdf

• Question 70:

  Which QoS options are supported by Dell EMC Unity XT?

  A. VMFS Datastore and Storage Pool
  B. iSCSI and Attached Snapshot
  C. Individual LUN and iSCSI
  D. Individual LUN and Group LUN
  D. Individual LUN and Group LUN