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

Topic	Details
Topic 1	XtremIO and X2 Hardware Fundamentals: System engineers and storage architects will find this section essential as it explores the architectural aspects of XtremIO and X2 systems. The exam assesses knowledge of InfiniBand switch options, battery backup solutions including SuperCap technology, and Disk Array Enclosure capacities. Candidates should also be well-versed in XtremIO X2 configuration options and the intricacies of port management.
Topic 2	XtremIO Online Cluster Expansion: Storage capacity planners and system upgrade specialists will be assessed on their knowledge of expanding XtremIO clusters while systems remain operational. This section covers the identification of necessary resources, preparation steps and prerequisites, and the detailed procedures for scaling clusters from single X-Brick configurations to dual and multi X-Brick setups.
Topic 3	Overview of XtremIO and X2 Features: This section is designed for storage administrators and IT professionals working with Dell XtremIO systems. It examines the differences and similarities between XtremIO and X2 functionalities, with a particular focus on their graphical user interfaces and the enhancements in the X2 version. Candidates are expected to demonstrate their ability to identify and distinguish between various XtremIO and X2 model offerings.
Topic 4	XtremIO and X2 Maintenance: This substantial portion of the exam is tailored for storage support engineers and maintenance technicians. It evaluates the ability to identify system resources, execute power-related procedures, and interpret cluster health indicators and component resilience. Candidates should be prepared to demonstrate their proficiency in replacing various Field Replaceable Units (FRUs) and utilizing the Technician Advisor tool for system installations and health assessments.
Topic 5	XtremIO and X2 Initial Configuration: System administrators and storage implementation specialists will be tested on their ability to perform initial setup of XtremIO systems. This includes the deployment of the XtremIO Management Server (XMS), along with an understanding of its support options and associated safety measures. The exam also covers the installation of Easy-CLI and XtremApp, procedures for cluster setup and validation, as well as the configuration of ESRS and ESRS VE.

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EMC Dell XtremIO Operate Achievement Sample Questions (Q12-Q17):

NEW QUESTION # 12
In addition to PowerPath, what other supported multipathing software is used for VMware ESXi hosts connecting to XtremIO?

A. NMP
B. MPIO
C. DMP
D. SDD

Answer: A

Explanation:
* In addition to PowerPath, the supported multipathing software for VMware ESXi hosts connecting to XtremIO is Native Multipathing (NMP).
* NMP is integrated with VMware and provides basic multipathing capabilities, allowing for path redundancy and load balancing.
* Properly configuring multipathing is crucial for achieving high availability and optimal performance in a VMware environment with XtremIO storage.
References:
* Dell EMC Host Connectivity Guide for VMware ESXi
* XtremIO Multipathing Configuration Documentation

NEW QUESTION # 13
Which performance metric is a measure of the time taken to complete an operation?

A. IOPS
B. Throughput
C. Bandwidth
D. Latency

Answer: D

Explanation:
Latency is the performance metric that measures the time taken to complete an operation. It is often described as the delay between a user's action and the response from the system to that action.In the context of storage systems like XtremIO, latency refers to the time it takes from when a read or write request is issued to when it is completed1.
Here's a breakdown of the options provided:
* A.Bandwidth: Bandwidth measures the amount of data that can be transferred over a network or processed by a system in a given amount of time.It is not a direct measure of time taken to complete an operation2.
* B.Latency: Latency is the correct answer as it specifically measures the time delay in completing an operation.It is a critical metric in storage and networking environments, where lower latency is generally indicative of faster system performance1.
* C.IOPS (Input/Output Operations Per Second): IOPS is a performance metric that measures the number of read and write operations that can be performed in one second.While it is related to system performance, it does not measure the time taken to complete a single operation2.
* D.Throughput: Throughput refers to the rate at which data is processed or transferred.It is similar to bandwidth and measures performance over time but does not specifically measure the time taken to complete an individual operation2.

NEW QUESTION # 14

Refer to the Exhibit.
An XtremlO administrator is asked to provide a copy of a 25 TiB database to a group of users. Each user needs to have their own copy of the database in order to perform a variety of manipulations on the data. This process needs to be repeated every day of the week. The administrator is concerned about the time it will take to make the initial copy of the database and is investigating the use of snapshots of snapshots.
How does each snapshot impact its ancestor?

A. Each first write to each snapshot will trigger a COFW from its ancestor
B. Each first write to a block of the production volume will trigger a COFW to each child snapshot
C. Each first access to each snapshot will trigger a COFA from its ancestor
D. Each snapshot can be considered a unique volume and has no impact
on its ancestor

Answer: A

Explanation:
XtremIO uses a Copy-On-Write (COFW) mechanism for snapshots. When a write is performed on a snapshot, the system checks if the data block being written to has been previously written. If it has not, it copies the original data block (from the ancestor snapshot or volume) to a new location before writing the new data to ensure data consistency. This operation only happens once per block for each snapshot, thereby minimizing the performance impact.
References:
* Dell's detailed explanation of the XtremIO snapshot functionality emphasizes the efficiency of their COFW mechanism, ensuring minimal performance degradation when creating and writing to snapshots.
* XtremIO documentation highlights how snapshots are managed with in-memory metadata, which supports fast creation and access without substantial performance penalties.

NEW QUESTION # 15
What is an accurate statement regarding RecoverPoint and XtremIO?

A. RecoverPoint supports synchronous and asynchronous replication of file-based storage
B. At least one RecoverPoint Appliance is required per X-Brick
C. RecoverPoint cannot scale-up with X-Bricks by adding more RPAs
D. RecoverPoint only supports homogeneous replication from XtremIO-to-XtremIO

Answer: B

Explanation:
* Each X-Brick in an XtremIO environment requires at least one RecoverPoint Appliance (RPA) to manage replication tasks effectively.
* RecoverPoint provides both synchronous and asynchronous replication, ensuring data integrity and disaster recovery capabilities.
* The RPA is crucial for handling replication operations and maintaining data consistency across XtremIO clusters.
References:
* Dell XtremIO Integration with RecoverPoint Documentation
* Raid-Zero XtremIO and RecoverPoint Initial Findings

NEW QUESTION # 16
When adding a user account in the XtremIO X2 XMS, which information is required?

A. Password, account type, and timeout value
B. E-mail notification, account type, and public key
C. Authentication method, timeout value, and LDAP
D. Unique user name, account type, and e-mail notification

Answer: A

Explanation:
When adding a user account to the XtremIO X2 XMS (XtremIO Management Server), the system requires specific information to create and manage the user profile effectively:
* Unique User Name: A unique identifier for the user account is necessary to ensure that each user can be individually recognized and managed within the system.
* Account Type: The type of account determines the level of access and permissions the user will have.
This could range from read-only access to full administrative privileges.
* E-mail Notification: Providing an email address enables the system to send notifications related to the user's activities or alerts from the XtremIO system.
While the search results did not provide a direct source confirming these exact requirements, they are consistent with standard practices for user account creation in management systems1. It's important to note that while LDAP (OA) can be used for authentication, it is not a requirement for creating a user account.
Similarly, a password (OC) is typically required but was not listed as an option in the question. Public keys (OD) are generally used for SSH key-based authentication and are not a standard requirement for user account creation in XMS.

NEW QUESTION # 17
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