Dell Dell Certifications D-UN-DY-23 Questions & Answers

• Question 31:

  Multiple I/O modules must be installed in Dell Unity XT 680 storage.

  Which module must be installed in slot 0?

  A. 4-Port 25 Gbps Ethernet

  B. 4-Port 16 Gb Fibre Channel

  C. 4-Port 10 Gbps Ethernet

  D. 12 Gb/s SAS back-end

  Correct Answer: D

  The Unity XT 680 system supports four types of I/O modules: 12 Gb/s SAS back-end, 4-Port 16 Gb Fibre Channel, 4-Port 25 Gbps Ethernet, and 4-Port 10 Gbps Ethernet. The 12 Gb/s SAS back-end module provides connectivity to the disk drives and expansion enclosures, while the other three types of modules provide network connectivity to the hosts and clients. The Unity XT 680 system has six I/O module slots, three for each SP. The 12 Gb/s SAS back-end module must be installed in slot 0 of each SP, and the other modules can be installed in slots 1 and 2 of each SP. Therefore, the correct answer is D. 12 Gb/s SAS back-end. References: Dell EMC Unity XT: Hardware Information Guide Dell EMC Unity XT: Installation Guide

• Question 32:

  A storage administrator recently disabled the Advanced Deduplication on a LUN.

  Which Dell Unity XT action can be used to remove the Advanced Deduplication savings from LUN?

  A. Unmask the LUNfrom host.

  B. Perform Local LUN Move.

  C. Chanqe Tierinq Policy to Auto-Tier.

  D. Disable the Data Reduction.

  Correct Answer: B

  When Advanced Deduplication is disabled on a LUN, the existing data that was deduplicated remains in its reduced state, and only new data written to the LUN is not deduplicated. To remove the Advanced Deduplication savings from the LUN, the administrator must perform a Local LUN Move operation, which copies the data from the source LUN to a destination LUN without deduplication. The destination LUN must have Advanced Deduplication disabled, and must be in the same storage pool as the source LUN. After the Local LUN Move is completed, the source LUN can be deleted and the destination LUN can be renamed as the original LUN. References: Dell Unity: Data Reduction2, page 9.

• Question 33:

  Which snapshot option is set automatically when a Pool is configured?

  A. Total Pool Consumption

  B. Pool Automatic Deletion Policy

  C. Snapshot Pool Consumption

  Correct Answer: B

  The snapshot option that is set automatically when a pool is configured is the Pool Automatic Deletion Policy. This option determines how the system handles the deletion of snapshots when the pool reaches a certain threshold of capacity

  utilization. The user can choose between three policies: Never Delete, Delete Oldest, or Delete LowestPriority. The Total Pool Consumption and the Snapshot Pool Consumption are not snapshot options, but rather metrics that show the

  amount of pool space consumed by the pool data and the snapshots respectively.

  References: [Dell EMC Unity: Storage Pools and RAID Groups], [Dell EMC Unity:

  Snapshots and Thin Clones]

• Question 34:

  Which feature can be configured for a Dell Unity XT file system NFS share?

  A. Access-Based Enumeration

  B. Protocol Encryption

  C. Host Access Level

  D. Distributed File System

  Correct Answer: C

  A feature that can be configured for a Dell Unity XT file system NFS share is the Host Access Level. This feature allows the user to specify the access permissions for each host or host group that is allowed to access the NFS share. The access permissions can be set to Read/Write, Read Only, or No Access. The Host Access Level feature can be used to control the security and performance of the NFS share. Access-Based Enumeration, Protocol Encryption, and Distributed File System are features that can be configured for a Dell Unity XT file system SMB share, not NFS share. References: [Dell EMC Unity: File System Configuration], [Dell EMC Unity: SMB Share Configuration]

• Question 35:

  DRAG DROP

  A storage engineer was asked to restore a LUN snapshot using a previous copy.

  What is the correct sequence of steps for a restore process?

  Select and Place:

  

  Correct Answer:

  

• Question 36:

  DRAG DROP

  What is the correct sequence of steps to provision storage for SMB NAS clients?

  Select and Place:

  

  Correct Answer:

  

  The correct sequence of steps to provision storage for SMB NAS clients is:

  1.

  Group hard drives into storage pools. This allows you to create a pool of storage resources that can be allocated to different types of storage objects, such as NAS servers, file systems, and LUNs.You can create different pools based on the performance and capacity requirements of your applications

  2.

  Create a NAS server for an existing pool. A NAS server is a logical entity that provides file-level access to clients using SMB, NFS, or FTP/SFTP protocols. You need to create a NAS server before you can create file systems and shares.You can specify the pool, network settings, domain membership, and other properties for the NAS server

  3.

  Create file systems and file system shares based on the supported NAS protocol. A file system is a logical container that stores files and folders on a NAS server. A file system share is a logical representation of a file system that can be accessed by clients using a specific protocol. For SMB NAS clients, you need to create SMB file system shares that support the SMB protocol.You can configure the share name, permissions, access policies, and other settings for the SMB share

  4.

  Map the shared file system to the client. This allows the client to access the files and folders on the SMB share using a drive letter or a UNC path.You can use the Windows Explorer or the net use command to map the shared file system to the client