GoShiken D-UN-DY-23問題集でリアル試験問題でテストエンジン問題集でトレーニング
EMC D-UN-DY-23テスト問題集とオンライン試験エンジン
Dell EMC Unity Deploy 2023試験は、Unityシステムのインストールと設定、ストレージのプロビジョニングと管理、データ保護とレプリケーション、およびパフォーマンス最適化など、さまざまなトピックをカバーしています。候補者は、Unityシステムの展開を計画し、問題をトラブルシューティングし、システムのパフォーマンスを最適化する能力をテストされます。
EMC D-UN-DY-23（Dell Unity Deploy 2023）試験は、ITプロフェッショナルがDell EMC Unityストレージシステムを展開および管理する知識とスキルをテストするために設計された認定プログラムです。この試験は、Dell EMC Unityストレージに経験があり、これらのシステムを展開および管理するスキルと知識を検証したい個人を対象としています。試験は、Dell EMC Unityストレージシステムのインストール、構成、管理、トラブルシューティング、最適化など、幅広いトピックをカバーしています。
質問 # 10
What is a characteristic of FAST VP?
- A. Users can enable or disable FAST VP at the LUN level.
- B. Fast VP optimizes data replacement by moving 1 GB slices between disk tiers.
- C. Fast VP data relocation runs in the background at all times once it is enabled.
- D. Users can set the Fast VP data relocation rate.
正解：D
解説：
Explanation
FAST VP (Fully Automated Storage Tiering for Virtual Pools) is a feature that automatically moves data within a storage pool based on the performance requirements and access patterns of the data. FAST VP data relocation runs in the background according to a user-defined schedule and rate. The schedule determines when the data relocation starts and ends, and the rate determines how much system resources are used for the data relocation. Users can set the Fast VP data relocation rate to High, Medium, Low, or None. High means that the data relocation has the highest priority and uses the most system resources, while None means that the data relocation is disabled. Fast VP data relocation does not run at all times, but only during the scheduled window. Fast VP optimizes data placement by moving 256 MB slices between disk tiers, not 1 GB slices.
Users cannot enable or disable FAST VP at the LUN level, but only at the storage pool level.
References: [Dell EMC Unity: FAST Technology Overview], [Dell EMC Unity: Storage Pools and RAID Groups]
質問 # 11
A storage administrator must configure replication from a production Dell Unity XT 680F to an offsite DR Dell Unity XT 480. Block resources must be replicated without data loss if the production site becomes unavailable. File resources can be replicated with an acceptable amount of data difference on the destination.
What replication configuration meets the requirements?
- A. Configure the replication interfaces on the 4-port mezzanine card.
- B. Set an RPO of 0 on the synchronous replication sessions.
- C. Set Unisphere resource filtering to All.
- D. Configure the replication connection mode to Both.
正解：D
解説：
Explanation
To meet the requirements, the replication connection mode must be set to Both, which allows both synchronous and asynchronous replication sessions to be configured on the same connection. This way, block resources can use synchronous replication, which ensures zero data loss, and file resources can use asynchronous replication, which allows some data difference on the destination. Setting Unisphere resource filtering to All is not necessary, as it only affects the display of resources in the Unisphere GUI. Setting an RPO of 0 on the synchronous replication sessions is redundant, as synchronous replication always has an RPO of 0. Configuring the replication interfaces on the 4-port mezzanine card is not relevant, as it only affects the performance and availability of the replication network.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: Unisphere Overview]
質問 # 12
What is a characteristic of Host Groups?
- A. Access to block storage resources must be set before adding hosts to a host group.
- B. Block storage resources attached to one of the member hosts are accessible to the entire host group.
- C. Block storage resources addedlo a host group are accessible to all the member hosts
- D. Hosts added to a host group must not have mapped block storage resources.
正解：C
解説：
Explanation
A characteristic of Host Groups is that block storage resources added to a host group are accessible to all the member hosts. A Host Group is a logical grouping of hosts that share the same access permissions and settings for block storage resources. By adding block storage resources to a host group, the user can simplify the management and allocation of storage for multiple hosts. Access to block storage resources does not need to be set before adding hosts to a host group, as the access permissions can be modified later. Hosts added to a host group can have mapped block storage resources, as long as they are not in conflict with the host group resources. Block storage resources attached to one of the member hosts are not accessible to the entire host group, unless they are also added to the host group.
References: [Dell EMC Unity: Host Configuration], [Dell EMC Unity: Block Storage Provisioning]
質問 # 13
A deployment engineer has changed theSchedule Time Zoneunder the Settings menu. However, existing snapshots schedules continue to run at the previously configured time.
Why is this occurring?
- A. The Unity management server was not restarted before time zone changes took effect.
- B. Existing snapshot schedules are not updated to the same absolute time when the time zone is changed.
- C. Existing snapshot schedules cannot be updated to the same absolute time.
- D. The Unity system time is not set correctly and must be updated under system settings.
正解：B
解説：
Explanation
When the Schedule Time Zone is changed under the Settings menu, it only affects the display of the time zone and the creation of new snapshot schedules. Existing snapshot schedules are not automatically adjusted to the new time zone, and will continue to run at the same absolute time as before. For example, if a snapshot schedule was created to run every day at 10:00 AM inGMT+1, and the Schedule Time Zone was changed to GMT+2, the snapshot schedule will still run at 10:00 AM in GMT+1, which is 11:00 AM in GMT+2. To update the existing snapshot schedules to the new time zone, the administrator must edit each schedule manually and change the start time accordingly. References: Dell EMC Unity: Snapshots and Thin Clones1, page 16.
質問 # 14
An administrator notices that the communications between Unisphere and the storage system get interrupted.
Which service task should the administrator perform to fix the issue with minimal impact?
- A. Restart Management Software
- B. Reinitialize
C Enable SSH - C. Reboot Storage Processor
正解：A
質問 # 15
Which snapshot option is set automatically when a Pool is configured?
- A. Total Pool Consumption
- B. Pool Automatic Deletion Policy
- C. Snapshot Pool Consumption
正解：B
解説：
Explanation
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]
質問 # 16
On a Dell Unity XT file system asynchronous replication session, how many system Snapshots are required to support replication?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
解説：
Explanation
On a Dell Unity XT file system asynchronous replication session, four system Snapshots are required to support replication. Two system Snapshots are created on the source file system, and two system Snapshots are created on the destination file system. The source system Snapshots are used to track the changes that need to be replicated, and the destination system Snapshots are used to apply the changes and maintain a consistent point-in-time copy of the source data. The system Snapshots are automatically created and managed by the replication engine and are not visible to the user.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: File System Configuration]
質問 # 17
In an asynchronous replication, what is the maximum number of replicated NAS servers supported for the Dell Unity XT 380 series?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
解説：
Explanation
The maximum number of replicated NAS servers supported for the Dell Unity XT 380 series in an asynchronous replication is 126. This is the same as the maximum number of NAS servers supported for the Dell Unity XT 380 series in general. Asynchronous replication is a method of replicating data between two Dell Unity systems with a configurable recovery point objective (RPO). It allows the source system to continue normal operations without waiting for the destination system to acknowledge the completion of the replication.
References: [Dell EMC Unity: Replication Technologies], [Dell EMC Unity: NAS Capabilities]
質問 # 18
What three VMware datastore types can be defined by using UI or CLI interfaces from the Dell Unity XT platform? (Choose three.)
- A. vVol (Block)
- B. VMFS (Block)
- C. SMB
- D. RDM
- E. NFS (File!
正解：A、B、E
解説：
Explanation
VMware datastore is a logical container that holds virtual machine files and other data. There are three types of VMware datastore that can be defined by using UI or CLI interfaces from the Dell Unity XT platform:
vVol (Block): A vVol datastore is a block-based storage object that is formatted with the VMware Virtual Volumes (vVol) framework and used to store virtual machine files and metadata. A vVol datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. A vVol datastore can provide granular control, policy-based management, and improved performance for virtual machines.
NFS (File): An NFS datastore is a file-based storage object that is formatted with the Network File System (NFS) protocol and used to store virtual machine files and other data. An NFS datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. An NFS datastore can provide scalability, flexibility, and efficiency for virtual machines.
VMFS (Block): A VMFS datastore is a block-based storage object that is formatted with the VMware File System (VMFS) and used to store virtual machine files and other data. A VMFS datastore can be created by using the Unisphere UI or the UEMCLI interface on the Dell Unity XT system. A VMFS datastore can provide high performance, reliability, and compatibility for virtual machines.
References:
Dell EMC Unity: VMware ESXi Hosts and Clusters
Dell EMC Unity: Unisphere Overview
Dell EMC Unity: Unisphere CLI User Guide
質問 # 19
What is the result of enabling Data Reduction on a LUN in a consistency group containing three LUNs?
- A. All writes to all consistency group LUNs will go through the Data Reduction logic.
- B. Any writes to the LUN will go through the Data Reduction logic.
- C. Data Reduction will be enabled on all LUNs is the consistency group.
- D. Data Reduction and Advanced Deduplication will be enabled on all LUNs.
正解：A
解説：
Explanation
Data Reduction is a feature that reduces the amount of physical storage space required to store user data on a LUN. Data Reduction is enabled at the LUN level and applies to all the data in the LUN, including snapshots and thin clones. Data Reduction consists of two components: compression and deduplication. Compression reduces the size of data blocks by removing redundant information, while deduplication eliminates duplicate blocks across the LUN. When Data Reduction is enabled on a LUN, all writes to the LUN will go through the Data Reduction logic before being written to the storage pool. If the LUN is part of a consistency group, Data Reduction will be enabled on all the LUNs in the consistency group, and all writes to any LUN in the group will go through the Data Reduction logic. This ensures that the data in the consistency group is consistent and protected by the same Data Reduction settings. References:
Dell EMC Unity: Data Reduction Overview
Dell EMC Unity: Data Reduction Configuration and Best Practices
質問 # 20
What does the Dell Unity XT system do after a NAS server starts outbound traffic to an external service?
- A. Uses the active production interface
- B. Selects interfaces that are based on advance static routes
- C. Creates an active interface buffer cache in DRAM
- D. Uses Packet Reflect for outbound communication
正解：D
解説：
Explanation
Packet Reflect is a feature that enables the Dell Unity XT system to use the same interface for outbound communication that was used for inbound communication. This feature is useful when the Dell Unity XT system needs to initiate outbound traffic to an external service, such as DNS, NTP, LDAP, or SMTP. By using Packet Reflect, the Dell Unity XT system can avoid routing issues, firewall restrictions, or network address translation problems that may occur when using a different interface for outbound communication. When a NAS server starts outbound traffic to an external service, the Dell Unity XT system uses Packet Reflect to send the packets through the same interface that received the packets from the external service. Therefore, the correct answer is D. Uses Packet Reflect for outbound communication. References:
Dell EMC Unity: NAS Capabilities
Dell EMC Unity: Unisphere Overview
質問 # 21
A company needs to expand their dynamic pool by 10 TB. The current dynamic pool consists of 63 7.6 TB SSD drives that are configured for RAID 5 (12+1).
What is the minimum number of drives needed for the pool expansion?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
解説：
Explanation
To expand a dynamic pool, the number of drives added must be equal to or greater than the stripe width of the pool. The stripe width is the number of data drives plus the number of parity drives in a RAID group. In this case, the stripe width is 12 + 1 = 13. Therefore, the minimum number of drives needed for the pool expansion is 13. References: Dell EMC Unity: Dynamic Pools Technical White Paper1, page 8.
質問 # 22
Multiple I/O modules must be installed in Dell Unity XT 680 storage.
Which module must be installed in slot 0?
- A. 4-Port 10 Gbps Ethernet
- B. 4-Port 25 Gbps Ethernet
- C. 4-Port 16 Gb Fibre Channel
- D. 12 Gb/s SAS back-end
正解：D
解説：
Explanation
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
質問 # 23
An administrator notices that the communications between Unisphere and the storage system get interrupted.
Which service task should the administrator perform to fix the issue with minimal impact?
- A. Restart Management Software
- B. Reinitialize
C Enable SSH - C. Reboot Storage Processor
正解：A
解説：
Explanation
The service task that the administrator should perform to fix the issue with minimal impact is Restart Management Software. This service task restarts the management software on both storage processors without affecting the data services or the host I/O. This can resolve the communication issues between Unisphere and the storage system. Reinitialize, Enable SSH, and Reboot Storage Processor are service tasks that have more impact and risk than Restart Management Software.
References: [Dell EMC Unity: Unisphere Overview], [Dell EMC Unity: Service Tasks]
質問 # 24
A storage engineer must grant access of a Dell Unity XT provisioned NFS datastore to ESXi-1.dell.local. The NAS server used to create the datastore is configured for NFSv4 protocol with Kerberos NFS owner authentication.
Which permission level is required for the ESXi host?
- A. Read/write, enable Root
- B. Read/write
- C. Read-only
正解：A
解説：
Explanation
To grant access of a Dell Unity XT provisioned NFS datastore to an ESXi host, the permission level required for the host depends on the NFS protocol and authentication method used by the NAS server. For NFSv4 with Kerberos NFS owner authentication, the ESXi host must have the Read/write, enable Root permission level.
This allows the ESXi host to read and write data to the datastore, as well as perform administrative tasks such as creating and deleting virtual machines. The Read/write permission level alone is not sufficient, as it does not allow the ESXihost to perform root-level operations on the datastore. The Read-only permission level only allows the ESXi host to read data from the datastore, but not write or modify it. References: Dell EMC Unity:
Configuring hosts to access NFS1, page 9.
質問 # 25
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Dell Unityストレージシステムは、幅広いアプリケーションに使用できる強力で柔軟なストレージソリューションです。このシステムは、高いパフォーマンス、拡張性、信頼性を提供するように設計されており、あらゆるサイズの組織にとって理想的な選択肢です。EMC D-UN-DY-23認定試験は、個人のシステムに関する知識を検証し、効果的に展開、設定、および維持するために必要なスキルを保証するように設計されています。
EMC D-UN-DY-23問題を提供していますProven Professional問題集と完璧な解答付き：https://www.goshiken.com/EMC/D-UN-DY-23-mondaishu.html
信頼され続けるD-UN-DY-23試験のコツとPDF試験材料：https://drive.google.com/open?id=1NIVy0UjTDnCev3lWJN_ZpLPTUOzfhvYD