FREE D-XTR-DS-A-24 PRACTICE EXAMS & VALID TEST D-XTR-DS-A-24 TUTORIAL

Free D-XTR-DS-A-24 Practice Exams & Valid Test D-XTR-DS-A-24 Tutorial

Free D-XTR-DS-A-24 Practice Exams & Valid Test D-XTR-DS-A-24 Tutorial

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The validation of expertise, more career opportunities, salary enhancement, instant promotion, and membership of EMC certified professional community. In this way, the Dell XtremIO Design Achievement (D-XTR-DS-A-24) can not only validate their skills and knowledge level but also put their careers on the right track. By doing this you can achieve your career objectives.

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

TopicDetails
Topic 1
  • XtremIO X2 Optimization and Performance Management: For performance analysts and storage administrators, this section addresses XtremIO X2 system optimization and performance management. It provides an overview of performance metrics, XtremIO X2 architecture, and the application of environmental, host, and benchmarking tools for performance measurement and improvement.
Topic 2
  • 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.
Topic 3
  • 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 4
  • Designing an XtremIO X2 Solution: For solution architects and storage designers, this comprehensive section addresses design considerations and best practices for XtremIO X2 solutions. It covers performance design considerations to meet required standards, and designing solutions with features like deduplication, compression, encryption, and replication.

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EMC Dell XtremIO Design Achievement Sample Questions (Q56-Q61):

NEW QUESTION # 56
What is the fingerprint bit size created by the algorithm used by XtremIO?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: A

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 # 57
What is the correct sequence of steps to perform a UNMAP operation on a VMware ESXi host that is mapped to an XtremlO volume containing very little data and the XtremIO array shows the space in use?

Answer:

Explanation:


NEW QUESTION # 58
You are connecting a Linux host to an XtremlO array. The host will be connected to the array using the QLogic HBA's. Based on the recommended best practice, what is the value for the queue depth?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: B

Explanation:
When connecting a Linux host to an XtremIO array using QLogic HBAs, the recommended best practice for the queue depth value is 256.This setting ensures that the XtremIO X2 storage arrays handle an optimal number of SCSI commands, including I/O requests, which is crucial for maintaining high performance and efficient data processing1.
References:
* The Dell EMC Ready Solutions for Oracle with XtremIO X2 document specifies the LUN queue depth to the recommended value of 256 for the QLogic HBAs used in their virtualized databases server1.
* Additional discussions on HBA Queue Depth and host settings for environments utilizing XtremIO can be found in the Dell Community forums2.


NEW QUESTION # 59
When creating XtremlO volumes for a host, which operating systems will benefit by changing the default logical block size for applications consisting of 4 KB I/Os?

  • A. Microsoft Windows and RHEL
  • B. Sun Solaris and HP-UX
  • C. RHEL and IBM AIX
  • D. VMware ESX and Microsoft Windows

Answer: D

Explanation:
When creating XtremIO volumes for a host, operating systems like Microsoft Windows and RHEL (Red Hat Enterprise Linux) will benefit from changing the default logical block size to better match applications that consist of 4 KB I/Os. This is because these operating systems are commonly used with applications that have a
4 KB I/O size, and aligning the logical block size with the application I/O size can improve performance by reducing the need for read-modify-write cycles.
For instance, in Windows environments, the NTFS file system often uses a default cluster size of 4 KB, which aligns well with a 4 KB logical block size.Similarly, for RHEL, the Ext4 file system can be configured with a
4 KB block size, which is a common setting for many Linux-based applications12.
References:
* Discussions on Dell Technologies community forums indicate that changing the logical block size can prevent issues with unaligned I/O and is part of a larger configuration strategy for optimizing storage performance3.
* The Reference Architecture Guide for Dell EMC XtremIO documents mention using a block size of 64 KB for database data and log file drives after the installation of the operating system in the VMs, for Windows and RHEL operating systems respectively12. This suggests that the block size is an important consideration for performance tuning in these environments.


NEW QUESTION # 60
Which X-Brick cluster topology is exclusive to XtremIO X2?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: A

Explanation:
XtremIO X2 supports configurations starting from a single X-Brick and scaling up to multiple X-Bricks.
However, the X2 system can support up to 8 X-Bricks in a cluster, not just 4, so option D is more correct.


NEW QUESTION # 61
......

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