Dell EMC Dell XtremIO Operate Achievement D-XTR-OE-A-24 Exam Practice Test

Answer : B

If the requested data is not found in cache, it is called a cache miss and the data must be read from the storage. The back end accesses the appropriate storage device and retrieves the requested data. Data is then placed in cache and finally sent to the compute system through the front end. Cache misses increase the I/O response time.

Answer : D

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.

Dell XtremIO Scale-Out Performance Guide

XtremIO Expansion Best Practices

Answer : B

If the email server is not receiving notifications for major severity issues, it is likely because alert definitions have not been defined.

Alert definitions specify the conditions under which notifications are sent, and without these, the system will not trigger email alerts.

Ensuring proper configuration of alert definitions is essential for timely notifications of critical events.

Dell XtremIO Administration Guide

XtremIO Alerts Configuration Documentation

Answer : B

cURL is an application that can be used to interact with an XtremIO cluster via the REST API.

It allows for the execution of various HTTP commands to manage and retrieve information from the storage array.

cURL is widely used for its simplicity and capability to handle RESTful web services, making it suitable for managing XtremIO clusters.

Dell XtremIO RESTful API Guide

XtremIO API Documentation

Answer : A

VMware vStorage APIs for Array Integration (VAAI) offloads certain storage tasks from the ESXi host to the storage array.

When VAAI is disabled, operations like quick formatting can take significantly longer because the tasks are handled by the host instead of being offloaded to the array.

Quick formatting involves writing zeroes to the entire LUN, and without VAAI, this process is much slower.

Enabling VAAI allows the XtremIO array to handle these operations more efficiently, reducing the time required for tasks like formatting.

Dell XtremIO VMware Integration Guide

VMware VAAI Best Practices with XtremIO

Answer : C

To create an iSCSI portal using the XtremIO X2 XMS WebUI, an administrator should navigate to Cluster Settings.

Within Cluster Settings, the configuration options for creating and managing iSCSI portals are available.

This is the starting point for setting up network configurations and ensuring the proper operation of iSCSI connections.

Dell XtremIO X2 Configuration Guide

XtremIO XMS WebUI Documentation

Answer : D

In EMC's AppSync, the Service Plan Administrator role is responsible for managing service plans and RPOs (Recovery Point Objectives). This role includes the ability to register applications for protection and configure their RPOs, which aligns with the responsibilities described for the new administrator1.

The Service Plan Administrator has the privileges needed to assign service levels and manage protection policies within AppSync. This role is crucial for ensuring that applications are protected according to the organization's specific recovery requirements and service level agreements1.

The other roles mentioned, such as Data Administrator, Security Administrator, and Resource Administrator, have different sets of responsibilities and privileges that do not specifically align with the task of registering applications for protection and configuring RPOs within AppSync1. Therefore, the correct privilege level for a new administrator with these responsibilities would be the Service Plan Administrator.