EMC DES-1D12 Online Practice Questions and Exam Preparation

EMC DES-1D12 Online Questions & Answers

• Question 21:

  A customer has a mixed environment consisting of Dell Unity 350F Dell Unity XT 680F. and Dell PowerStore 5000X They want to have a single interface to monitor and report on all the arrays.

  Which software tool should the technical architect recommend?

  A. CloudlQ
  B. Unisphere Analyzer
  C. Unisphere Central
  D. PowerStore Manager
  A. CloudlQ

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  Explanation/Reference:

• Question 22:

  A Windows client using the SMB protocol is trying to access a multiprotocol file system from a Dell Unity XT NAS server. The local group database was checked and no mapping was found. What is the next step in the SID to UID resolution process?

  A. The Windows user access is removed
  B. The domain controller is checked
  C. The Windows user is mapped to the default UNIX account
  D. Secmap is checked
  B. The domain controller is checked

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  Explanation/Reference:

  When a Windows client uses the SMB protocol to access a multiprotocol file system from a Dell Unity XT NAS server, the SID (Security Identifier) of the Windows user is mapped to a UID (User Identifier) on the UNIX file system. If no mapping is found in the local group database, the domain controller is checked to see if the SID is present there. The domain controller can provide the information needed to map the SID to the corresponding UID on the file system, allowing the Windows user to access the files. If the SID is not present in the domain controller, the Windows user's access would be removed.

• Question 23:

  What is the purpose of the NVMe NVRAM drives in a Dell EMC PowerStore 9000 array?

  A. Read cache and vaulting
  B. Read cache and base OS
  C. Write cache and base OS
  D. Write cache and vaulting
  D. Write cache and vaulting

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  Explanation/Reference:

  Reference: https://www.delltechnologies.com/en-us/collaterals/unauth/white-papers/products/storage/h18149-dell-emc-powerstore-platform-introduction.pdf (12)

• Question 24:

  Which onboard Dell PowerStore components does the LCC interface sit between?

  A. HDD drives and CPU board
  B. SCM drives and PCIe
  C. SCM drives and SCSI drives
  D. CPU board and NVMe drives
  D. CPU board and NVMe drives

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  Explanation/Reference:

  The LCC interface sits between the CPU board and the NVMe drives onboard Dell PowerStore components. The LCC interface is responsible for controlling the PCIe links between the CPU board and NVMe drives and allows for communication between the two. It also provides additional features such as error correction and power management for the NVMe drives.

• Question 25:

  Which are benefits of choosing the highest capacity flash drives when designing a Dell Unity XT All-Flash system?

  A. Enhances data security and system boot time
  B. Lowers physical space power and cooling requirements
  C. Decreases ware-leveling, performance and redundancy requirements
  D. Reduces maintenance and rebuild time
  B. Lowers physical space power and cooling requirements

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  Explanation/Reference:

  Choosing the highest capacity flash drives when designing a Dell Unity XT All-Flash system can provide several benefits, including lower physical space, power and cooling requirements. Additionally, higher capacity drives can also improve system boot time, reduce maintenance and rebuild time, and decrease wear-leveling, performance, and redundancy requirements.

• Question 26:

  What is a consideration when sizing a Dell EMC SC Series system for capacity?

  A. Read/Write ratio
  B. IOPS
  C. Page size
  D. RAID overhead
  B. IOPS

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  Explanation/Reference:

  (Input/Output Operations Per Second) is a key consideration when sizing a Dell EMC SC Series system for capacity. IOPS is a measure of the performance of a storage system, and a higher number of IOPS generally indicates better performance. Other factors to consider would be the number of disk drives, RAID configuration, and storage capacity required for the specific use case.

• Question 27:

  A customer must restrict the share content visibility of a Dell Unity file system based on the access rights. What attribute at the share level must be used?

  A. Continuous availability
  B. Access-based enumeration
  C. Protocol encryption
  D. Offline availability
  B. Access-based enumeration

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  Explanation/Reference:

  https://www.dell.com/support/manuals/en-us/unity-600f/unity_p_multiprotocol_infomod/security-on-file-system-objects?guid=guid-0d5c65ec-07a1-46f1-8936-a02f4c86b126andlang=en-us

  Access-based enumeration is the attribute that must be used at the share level to restrict the share content visibility of a Dell Unity file system based on the access rights. Access-based Enumeration (ABE) is a feature that allows you to hide files and folders from users who do not have the necessary permissions to access them. When ABE is enabled, users only see the files and folders that they have permission to access. This helps to prevent users from accidentally accessing data that they should not have access to, and it helps to maintain the security and integrity of the data on the file system.

• Question 28:

  Which file resources are supported with Dell EMC Unity asynchronous replication?

  A. File systems and LUNs
  B. LUNs and VMFS datastores
  C. NAS servers and NFS datastores
  D. Consistency Groups and file systems
  A. File systems and LUNs

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  Explanation/Reference:

  Reference: https://www.delltechnologies.com/en-us/documentation/unity-family/unity-p-replication-config/02-unity-rep-br-workflow.htm

• Question 29:

  Which CPU family is used on a Dell Unity XT 480?

  A. ice Lake
  B. Haswell
  C. Skylake
  D. Broadwell
  C. Skylake

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  Explanation/Reference:

  The Skylake CPU family is a 6th generation Intel processor, which provides higher performance and improved energy efficiency compared to its predecessors. It is used on the Dell Unity XT 480, as well as other systems such as the Dell XPS 13, MacBook Pro, and HP Envy. Skylake CPUs are also used in servers, desktops, and laptops. Skylake CPUs include features such as Turbo Boost, Hyper-Threading, and support for DDR4 memory.

• Question 30:

  A customer asks you about adding 4-port 1 GbE BaseT connectivity to their Dell EMC Unity XT series array.

  What should be your response?

  A. 4-port 1GbE BaseT module is supported on Unity XT with the latest Enginuity code
  B. 4-port 1GbE BaseT module is provided by the Mezz card on Unity 80 series models
  C. 4-port 1GbE BaseT module is not available on Unity XT
  D. 4-port 1GbE BaseT module is supported across all Unity models
  C. 4-port 1GbE BaseT module is not available on Unity XT

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  Explanation/Reference:

  4-Port Mezz Card

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  Mezz cards are only available on the 480/F through 880/F systems

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  Mezz cards are optional and will be available with the following configurations:

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  4-Port 25GbE Optical › 10Gb or 25Gb SFPs › Can mix 10Gb and 25Gb SFPs on same card

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  TwinAx

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  4-Port 10GbE BaseT

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  4-Port card network ports can be included in LACP and FSN configurations

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  No Mezz Card