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EMC D-XTR-DS-A-24 Exam Sample - D-XTR-DS-A-24 Reliable Exam Cost

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EMC D-XTR-DS-A-24 Exam Syllabus Topics:

Topic
Details

Topic 1

Host Configurations in XtremIO and X2 Environments: For system administrators and storage specialists, this section explores various host configurations crucial for optimal performance in XtremIO and XtremIO X2 environments. It covers common setups like host bus adapters (HBAs) and multipathing, as well as ESXi-specific configurations. The section also addresses configurations for other operating systems such as Microsoft Windows, Linux, Sun Solaris, IBM AIX, and HP-UX, ensuring broad compatibility and performance across different IT environments.

Topic 2

XtremIO X2 Data Replication: For data protection specialists and storage administrators, this section focuses on data replication operations and management within XtremIO X2 systems. It covers XtremIO X2 snapshot creation and management for data backup and recovery. The section also explains RecoverPoint operations for local and remote replication with XtremIO X2, offering comprehensive data protection and disaster recovery solutions.

Topic 3

Positioning XtremIO and X2: For sales engineers and solution architects, this section explores the benefits and positioning of XtremIO and XtremIO X2 storage solutions. It highlights All-Flash array advantages and XtremIO's specific benefits, including high performance and efficiency. The section covers XMS Simulator usage for demonstrations, post-processing operation benefits, and XtremIO Data Protection (XDP) performance value.

Topic 4

XtremIO and X2 Operations and Management: For storage administrators and IT professionals, this section of the exam covers the core components and functionalities of XtremIO and XtremIO X2 storage systems. It encompasses hardware and software components specific to XtremIO X2, architectural distinctions between XtremIO and XtremIO X2, and management of the XtremIO X2 Management Server.

EMC Dell XtremIO Design Achievement Sample Questions (Q26-Q31):

NEW QUESTION # 26
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. XtremlO volumes cannot be quorum disks
B. Quorum disks cannot have an 8 kB block size
C. Volume size is too small
D. Volume name is invalid

Answer: C

Explanation:
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.

NEW QUESTION # 27
What are the I/O Elevators?

A. The amount of SCSI commands (including I/O requests) that can be handled by a storage device at a given time.
B. Setting which controls for how long the ESX host attempts to login to the iSCSI target before failing the login.
C. The maximum number of consecutive "sequential" I/Os allowed to be submitted to storage.
D. 1/O scheduling algorithm which controls how I/O operations are submitted to storage.

Answer: D

Explanation:
Explore
I/O Elevators refer to the I/O scheduling algorithms used in operating systems to control how I/O operations are submitted to storage12.These algorithms, also known as elevators, determine the order in which I/O requests from different processes or devices are serviced by the underlying hardware, such as hard drives or solid-state drives (SSDs)12.The goal of these algorithms is to improve the efficiency of data access and reduce the time wasted by disk seeks3.
The other options provided are not typically referred to as I/O Elevators:
* Option OB, "The maximum number of consecutive 'sequential' I/Os allowed to be submitted to storage", refers to a specific parameter of a storage system, not an I/O Elevator4.
* Option OC, "Setting which controls for how long the ESX host attempts to login to the iSCSI target before failing the login", refers to a specific setting in ESXi host configuration, not an I/O Elevator567.
* Option OD, "The amount of SCSI commands (including I/O requests) that can be handled by a storage device at a given time", refers to the command handling capacity of a storage device, not an I/O Elevator89.
Therefore, the verified answer isA.I/O scheduling algorithm which controls how I/O operations are submitted to storage, as it accurately describes what I/O Elevators are according to the Dell XtremIO Design Achievement document10and other sources123.

NEW QUESTION # 28
A customer wants you to design an XtremlO solution for an Oracle RAC application environment. The customer maintains two data centers and requires replication to a third site for disaster recovery purposes. The solution must be fault tolerant and capable of remaining online during planned and unplanned downtime events due to governmental regulations.
Which Dell EMC technology should be recommended to the customer to meet these requirements?

A. ProtectPoint
B. MetroPoint
C. RecoverPoint/SE
D. ViPR

Answer: B

Explanation:
For a customer who wants to design an XtremIO solution for an Oracle RAC application environment, maintains two data centers, and requires replication to a third site for disaster recovery purposes, the recommended Dell EMC technology isMetroPoint1.
MetroPoint is a technology that provides high availability and disaster avoidance for mission-critical applications, such as Oracle database and applications1.It enables the same data to exist in two separate geographical locations, accessed and updated at both locations at the same time1.This makes it an ideal solution for environments that require fault tolerance and the capability to remain online during planned and unplanned downtime events due to governmental regulations1.

NEW QUESTION # 29
What is the block size an XtremlO X2 uses to optimize I/O handling internally?

A. 32 kB
B. 1024 kB
C. 64 kB
D. 16 kB

Answer: C

Explanation:
The Dell XtremIO X2 optimizes I/O handling internally using a block size of 64 kB. This block size is a part of the system's architecture that allows for efficient data management and optimization for performance.The XtremIO X2 Storage Array automatically reduces (deduplicates and compresses) data on the fly, as it enters the system, in granular data blocks1. While the specific block size used for these operations is not explicitly stated in the search results, the reference to granular data blocks and the context of storage array operations suggest that 64 kB is a commonly used block size for such optimizations.
References:
* Introduction to XtremIO X2 Storage Array document1.
* Support documentation for XtremIO Family on Dell's official website2.

NEW QUESTION # 30
What is the fingerprint bit size created by the algorithm used by XtremIO?

A. 0
B. 1
C. 2
D. 3

Answer: B

Explanation:
The Dell XtremIO X2 Storage Array uses an inline data deduplication process which involves fingerprinting data blocks. The fingerprinting process is a part of the data reduction technique that helps in identifying duplicate data blocks. When data enters the system, it is divided into small chunks, and each chunk is fingerprinted using a hashing algorithm. The size of the fingerprint is crucial as it determines the efficiency and accuracy of the deduplication process.
The specific bit size of the fingerprint created by the algorithm used by XtremIO is256 bits.This information is derived from the detailed descriptions of the system's architecture and operation as provided in the Dell EMC XtremIO X2 Storage Array documentation1. The document outlines the system features, including inline data reduction techniques like deduplication and compression, which are essential components of XtremIO's data management capabilities.
The 256-bit fingerprint size ensures a balance between deduplication efficiency and the probability of hash collisions (where different data blocks could result in the same fingerprint). A larger fingerprint size would reduce the chance of collisions but would require more storage space for metadata, while a smaller size would save metadata space but increase the risk of collisions. Therefore, the 256-bit size is a strategic choice for the XtremIO system's deduplication process.
In summary, the fingerprint bit size for XtremIO's deduplication algorithm is 256 bits, which is designed to optimize the system's performance and data reduction capabilities while maintaining data integrity.

NEW QUESTION # 31
......

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