信頼的なD-XTR-DS-A-24日本語版対応参考書一回合格-100％合格率のD-XTR-DS-A-24試験情報

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D-XTR-DS-A-24試験情報 & D-XTR-DS-A-24試験合格攻略

長年の努力と革新とクライアントベースのコンセプトを中心に、当社は業界の旗艦企業に成長しました。当社は、D-XTR-DS-A-24試験の準備の質の向上に苦労し、D-XTR-DS-A-24スタディガイドの研究と革新に多大な努力とお金を投資しています。業界での当社のブランド名は、優れたD-XTR-DS-A-24学習ガイドで有名です。高品質、思いやりのあるサービス、絶え間ない革新、そしてD-XTR-DS-A-24試験問題での最初の顧客の概念は、当社の4つの柱です。

EMC Dell XtremIO Design Achievement 認定 D-XTR-DS-A-24 試験問題 (Q33-Q38):

質問 # 33
Which performance capture technology helps to evaluate cloud candidacy?

A. Unisphere
B. Technician Advisor
C. Dossier
D. Live Optics

正解：D

解説：
Live Optics is a performance capture technology that helps to evaluate cloud candidacy by providing real-time data collection and visual analysis of an environment's current workload performance. It is designed to offer insights into the infrastructure's capabilities and to identify opportunities for optimization or migration to cloud services.Live Optics captures, analyzes, and visualizes the workload characteristics to help organizations make informed decisions about cloud adoption based on their specific performance metrics and requirements1.
References:
* The Dell XtremIO Design documents and training materials emphasize the importance of understanding workload performance and characteristics when considering cloud solutions, which is facilitated by tools like Live Optics1.
* Additional information on the role of performance capture technologies in cloud candidacy evaluation can be found in the Dell Technologies Education Services resources2.

質問 # 34
You need to design a VDI solution for a customer. Which recommended best practices should be used for VDI environments?

A. Align data on 4 kB boundariesPut persona and user data on XtremIO LUNs
B. Align data on 4 kB boundariesAllocate multiple XtremIO LUNs to each host
C. Align data on 8 kB boundariesPut all VDI-related data on one large LUN
D. Align data on 8 kB boundariesPut the master VM image on an XtremIO LUN

正解：B

解説：
When designing a Virtual Desktop Infrastructure (VDI) solution, it's important to consider the best practices for performance and efficiency.
Option OB, "Align data on 4 kB boundariesAllocate multiple XtremIO LUNs to each host", is a recommended best practice for VDI environments12.This is because aligning data on 4 kB boundaries can help to optimize the performance of the storage system12.The XtremIO storage array uses a 4 kB data block size, so aligning data on 4 kB boundaries can help to ensure that data is efficiently stored and retrieved12.
Allocating multiple XtremIO LUNs to each host can also help to distribute the I/O load more evenly across the storage system, which can improve performance12.This is particularly important in VDI environments, where there can be a high level of concurrent I/O activity12.
The other options, while they may be part of the overall process, are not specifically recommended for VDI environments:
* Option OA, "Align data on 8 kB boundariesPut all VDI-related data on one large LUN", is not recommended because aligning data on 8 kB boundaries does not match the 4 kB data block size used by the XtremIO storage array12.Also, putting all VDI-related data on one large LUN can lead to performance issues due to the high level of concurrent I/O activity in VDI environments12.
* Option OC, "Align data on 4 kB boundariesPut persona and user data on XtremIO LUNs", is not recommended because persona and user data typically do not require the high performance provided by XtremIO LUNs12.
* Option OD, "Align data on 8 kB boundariesPut the master VM image on an XtremIO LUN", is not recommended because aligning data on 8 kB boundaries does not match the 4 kB data block size used by the XtremIO storage array12.
Therefore, the verified answer isB.Align data on 4 kB boundariesAllocate multiple XtremIO LUNs to each host, as it provides the most suitable solution for VDI environments according to the Dell XtremIO Design Achievement document12.

質問 # 35
Which statement is accurate about deduplication on an XtremlO array?

A. As the deduplication ratio increases, bandwidth increases while latency increases
B. As the deduplication ratio decreases, bandwidth increases while latency decreases
C. As the deduplication ratio decreases, bandwidth decreases while latency increases
D. As the deduplication ratio increases, bandwidth increases while latency decreases

正解：D

解説：
Deduplication on an XtremIO array is a process where redundant data blocks are identified and only unique data is stored. This results in a reduction of the physical storage required, which is referred to as the deduplication ratio. As the deduplication ratio increases, meaning more redundant data is eliminated, the bandwidth effectively increases because less data needs to be transferred over the network.Additionally, latency decreases because the system has to process fewer data blocks, leading to faster response times1.
References:
* The Dell EMC XtremIO X2: Next-Generation All-Flash Array document explains that XtremIO's in-memory deduplication is global across the entire cluster, which means that only unique data is written to the SSDs.This inline deduplication not only saves significant capacity but can also improve performance1.
* The Introduction to XtremIO X2 Storage Array document details how the XtremIO X2 Storage Array automatically reduces (deduplicates and compresses) data on the fly, as it enters the system, which reduces the amount of data written to flash, improving the longevity of the media and driving down cost2.

質問 # 36
A user attempts to create a quorum disk for a host cluster. Volume parameters are:
Size = 1000 Kb
. Name 1 MB_Vol
However, the volume creation fails. What caused the process to fail?

A. Volume size is too small
B. Quorum disks cannot have an 8 kB block size
C. XtremlO volumes cannot be quorum disks
D. Volume name is invalid

正解：A

解説：
The process to create a quorum disk for a host cluster failed because the volume size is too small12.
In a storage environment, the size of the volume plays a crucial role.If the volume size is too small, it may not be able to accommodate the data required for the quorum disk, leading to a failure in the creation process12.
In this case, the volume size is specified as 1000 Kb, which is likely insufficient for a quorum disk in a host cluster environment12.Therefore, increasing the volume size could potentially resolve this issue12.

質問 # 37
When using the XtremIO PoC Toolkit, what is the purpose of the Age phase?

A. Scatter writes across the entire array to simulate ordinary use of the system
B. Continuously write to a specific range of logical block addresses to test Flash durability
C. Overwrite each LUN multiple times to ensure they contain all unique data
D. Test the performance of the All-Flash array with non-production static data

正解：C

解説：
The purpose of the Age phase in the XtremIO PoC (Proof of Concept) Toolkit is to overwrite each LUN (Logical Unit Number) multiple times to ensure that they contain all unique data.This process is crucial for simulating a real-world scenario where the storage array has been in use for some time, which allows for the evaluation of the performance and behavior of the All-Flash array under more typical conditions1.
References:
* The XtremIO PoC Toolkit documentation, which outlines the procedures and phases used during a proof of concept to evaluate the performance and capabilities of the XtremIO storage system1.
* Discussions and resources available on professional forums and communities that share insights into the use and stages of the XtremIO PoC Toolkit2.

質問 # 38
......

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