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EMC D-XTR-OE-A-24 認定試験の出題範囲:
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EMC D-XTR-OE-A-24認定資格試験問題集 & D-XTR-OE-A-24無料ダウンロード
当社CertShikenは、受験者向けのD-XTR-OE-A-24試験資料をEMC編集するために設立されたプロフェッショナルブランドです。試験に合格するとともに、関連するD-XTR-OE-A-24認定をより効率的かつ簡単に取得することを目指しています。 当社のD-XTR-OE-A-24試験教材の優れた品質とリーズナブルな価格により、当社は国際市場で一流の会社になりました。 当社のD-XTR-OE-A-24のDell XtremIO Operate Achievement試験トレントは、国際分野の他のメーカーよりも価格が優れているだけでなく、多くの点で明らかに優れています。
EMC Dell XtremIO Operate Achievement 認定 D-XTR-OE-A-24 試験問題 (Q43-Q48):
質問 # 43
What is an accurate statement when managing multiple XtremIO X2 clusters?
- A. One XMS can manage up to 16 X-Brick clusters
- B. Virtual XMS can manage up to four X-Brick clusters
- C. Clusters can only be added/removed through the XMCLI
- D. XtremIO X1 XMS can manage XtremIO X2 clusters
正解:A
解説:
When managing multiple XtremIO X2 clusters, it is accurate that a single XtremIO Management Server (XMS) can manage up to 16 X-Brick clusters. The XMS is a key component of the XtremIO environment, providing centralized management and monitoring capabilities for XtremIO clusters. Here's a detailed explanation:
* XMS Capabilities: The XMS is designed to manage multiple XtremIO clusters, offering a unified view and control over the entire storage environment.It allows administrators to perform various tasks such as provisioning, monitoring, and managing the clusters from a single interface1.
* Scalability: The ability to manage up to 16 X-Brick clusters with a single XMS highlights the scalability of the XtremIO architecture.This scalability is essential for large-scale deployments where multiple clusters are used to meet performance and capacity requirements1.
* Virtual and Physical XMS: The XMS can be deployed as either a physical server or a virtual machine (VM), providing flexibility in deployment options.Regardless of the deployment model, the XMS retains its capability to manage multiple clusters1.
* XMCLI: While the XtremIO Management Command Line Interface (XMCLI) is used for managing clusters, it is not the only way to add or remove clusters.The XMS provides a graphical user interface (GUI) as well, which can also be used for these tasks1.
* XtremIO X1 and X2 Compatibility: The statement regarding XtremIO X1 XMS managing XtremIO X2 clusters (OC) would require specific compatibility information, which typically depends on the software version and feature support2.
* Limitations of Virtual XMS: The statement that a virtual XMS can manage up to four X-Brick clusters (OD) may not be accurate without specific context, as the capability can depend on the XMS version and the deployment configuration1.
質問 # 44
What is a specific configuration guideline that should be followed when configuring Linux hosts to support XtremIO storage?
- A. Assign LUN 0 to the boot LUN
- B. Enable the I/O elevator
- C. Set the execution throttle to 35025
- D. Set the LUN queue depth to 64
正解:D
解説:
* Configuring Linux hosts to support XtremIO storage involves setting the LUN queue depth to 64.
* This configuration ensures optimal performance by allowing the host to handle multiple I/O operations concurrently, matching the capabilities of the XtremIO array.
* Proper tuning of the LUN queue depth is crucial for maximizing throughput and minimizing latency in high-performance storage environments.
References:
* Dell XtremIO Host Configuration Guide for Linux
* Host Configurations in XtremIO Environments
質問 # 45
Which Linux/UNIX command is used for monitoring the performance of system input/output devices?
- A. netstat
- B. nbtstat
- C. stat
- D. iostat
正解:D
解説:
The iostat command is used for monitoring system input/output device loading by observing the time the devices are active in relation to their average transfer rates.It generates reports that can be used to change system configuration to better balance the input/output load between physical disks1.The iostat command is particularly useful for monitoring disk throughput and can help identify high disk utilization, which is essential for diagnosing performance issues related to storage2.
The iostat command provides information about input/output (I/O) statistics for block devices (like hard drives and SSDs) and CPUs, making it a valuable tool for analyzing the performance and usage of these resources on a system1.It is distributed as part of the sysstat package and is available on most Linux distributions1.
The other commands listed have different purposes:
* stat (OA) is used to display file or file system status.
* netstat (OB) displays network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
* nbtstat (OC) is a Windows command-line utility that displays protocol statistics and current TCP/IP connections using NetBIOS over TCP/IP.
Therefore, for monitoring the performance of system input/output devices on Linux/UNIX systems, iostat (OD) is the correct command to use1.
質問 # 46
Which key components within XtremlO X1 provide an enterprise level of continuous availability?
- A. Thin Provisioning and Snapshots
- B. Thin Provisioning and Data Protection
- C. Data Protection and Snapshots
- D. Inline Data Deduplication and Inline Compression
正解:C
解説:
XtremIO X1 provides continuous availability through a combination of data protection mechanisms and snapshot capabilities:
* Data Protection: XtremIO X1 uses a unique data protection scheme known as XtremIO Data Protection (XDP), which offers better efficiency and rebuild performance compared to traditional RAID configurations.XDP provides high levels of fault tolerance and ensures data integrity, which is essential for continuous availability1.
* Snapshots: XtremIO's snapshot technology allows for the creation of instant, space-efficient copies of data volumes.These snapshots can be used for various purposes, including backup and recovery, testing, and development, without impacting the performance of the primary system1.
* Continuous Availability: The combination of XDP and snapshots enables XtremIO X1 to provide an enterprise level of continuous availability by ensuring that data is protectedagainst hardware failures and that operations can continue uninterrupted during maintenance or in the event of a disaster1.
XtremIO's approach to data protection and snapshots is designed to meet the demands of enterprise environments where downtime is not an option, and data must be accessible at all times1.
質問 # 47
A systems administrator wants to double the throughput on an existing dual XtremIO X1 10 TB X-Brick cluster. All hosts performing I/O to the cluster are configured and tuned according to Dell Technologies best practices.
To achieve the performance gain, what should be added?
- A. A single 10 TB X-Brick Expansion Kit
- B. A dual 20 TB X-Brick Expansion Kit
- C. A single 20 TB X-Brick Expansion Kit
- D. A dual 10 TB X-Brick Expansion Kit
正解:D
解説:
* To double the throughput on an existing dual XtremIO X1 10 TB X-Brick cluster, adding a dual
10 TB X-Brick Expansion Kit is recommended.
* XtremIO uses a scale-out architecture, and adding a dual X-Brick expansion will increase both storage capacity and performance.
* This expansion ensures balanced performance improvement and leverages the best practices configuration already in place for the existing setup.
References:
* Dell XtremIO Scale-Out Performance Guide
* XtremIO Expansion Best Practices
質問 # 48
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