Practice Free D-PEXE-IN-A-00 Exam Online Questions

Question #1

A deployment engineer is installing a PowerEdge XE8640 server. The rack has four PDUs. Looking at the rear of the rack, one power source provides power to the two left PDUs. A different power source provides power to the two right PDUs.

What side of the rack should XE8640 PSU 1 and PSU 2 be connected?

A . PSU 2 in the left and PSU 1 in the right
B . PSU 1 and PSU 2 in the left PDUs
C . PSU 1 and PSU 2 in the right PDUs
D . PSU 1 in the left and PSU 2 in the right

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Correct Answer: D
D

Explanation:

Redundancy and Load Balancing:

PowerEdge XE8640 servers are designed for high availability and reliability. One key aspect of this design is the redundancy provided by the server’s Power Supply Units (PSUs). By connecting each PSU to a different power source, you ensure that the server remains operational even if one power source fails.

Power Source Configuration:

In this scenario, the rack has two distinct power sources: one supplying power to the two left PDUs and the other to the two right PDUs. To maximize redundancy, each PSU should be connected to a different power source.

PSU Placement:

PSU 1 in the left PDUs: Connect PSU 1 to one of the PDUs on the left side of the rack. This ensures that PSU 1 is powered by the first power source.

PSU 2 in the right PDUs: Connect PSU 2 to one of the PDUs on the right side of the rack. This ensures that PSU 2 is powered by the second power source.

Ensuring Redundancy:

By placing PSU 1 on the left and PSU 2 on the right, you create a redundant power configuration. If either power source fails, the other PSU can continue to supply power to the server, maintaining its operation.

Steps for Connection:

Step 1: Verify that the rack’s PDUs are correctly connected to their respective power sources.

Step 2: Identify the left and right PDUs based on their power source connections.

Step 3: Connect PSU 1 to a PDU on the left side of the rack.

Step 4: Connect PSU 2 to a PDU on the right side of the rack.

Step 5: Confirm that both PSUs are securely connected and receiving power from separate sources.

Safety and Verification:

Ensure that all connections are secure and that the cables are managed to prevent interference with

other components or airflow within the rack. Verify that each PSU is functioning correctly by

checking the server’s power status indicators.

Reference: Dell EMC PowerEdge XE8640 Installation and Service Manual: This manual provides detailed guidelines on PSU connections and power redundancy configurations.

Dell EMC Technical Specifications Guide: Offers comprehensive details on the power requirements and redundancy features of the PowerEdge XE8640.

Question #2

What must be considered regarding stab-in rails with installing a PowerEdge XE server?

A . Enable a vertical installation of the server with the use of J-slots.
B . Do not support extending the server from the rack.
C . Only used in 4-post, square hole racks.
D . Inner rail must be installed on the server before installing in rack.

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Question #3

A deployment engineer installed and powered on a XE8640 server. The Linux operating system is installed. They need to update the drivers on the server.

What is a consideration before updating the driver?

A . A single graphics driver supports all modern GPUs.
B . Each GPU model has a distinct driver package.
C . The driver package only supports Windows operating systems.
D . You can upload the driver package using the iDRAC UI.

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Correct Answer: B
B

Explanation:

Understanding GPU Drivers:

Graphics Processing Units (GPUs) require specific drivers to ensure optimal performance and compatibility with the operating system. Each GPU model typically has a unique driver package designed to leverage its capabilities and architecture. Driver Packages for Different GPU Models:

For the Dell PowerEdge XE8640, which may be equipped with multiple GPU models, it is crucial to identify the exact GPU models installed in the server. Each GPU model, whether it’s from NVIDIA, AMD, or another manufacturer, will have a distinct driver package. Importance of Model-Specific Drivers:

Using the correct driver for each GPU model ensures that the GPU operates efficiently, provides the intended performance, and remains stable under various workloads. Incorrect drivers can lead to suboptimal performance, compatibility issues, or system instability. Steps to Update Drivers on Linux:

Identify the GPU models installed in the server. This can be done using commands like lspci | grep -i vga or similar tools that list the hardware components.

Visit the GPU manufacturer’s website (e.g., NVIDIA, AMD) to download the appropriate drivers for each GPU model.

Follow the manufacturer’s installation instructions, which typically involve downloading the driver package, extracting it, and running an installation script or using package management tools. Using iDRAC for Driver Updates:

While the iDRAC (Integrated Dell Remote Access Controller) UI can be used for various management tasks, uploading driver packages directly via iDRAC is not typically supported. Drivers are usually installed within the operating system environment. Compatibility with Linux:

Ensure that the driver package is compatible with the Linux distribution and kernel version installed

on the XE8640. GPU manufacturers often provide detailed compatibility information and installation

guides specific to various Linux distributions.

Reference to Official Documentation:

Dell’s support site and the GPU manufacturer’s documentation provide comprehensive guides on downloading and installing the correct drivers for various operating systems, including Linux.

Reference: Dell EMC PowerEdge XE8640 Installation and Service Manual: This manual provides detailed guidelines on hardware configurations and driver installations.

NVIDIA/AMD Official Documentation: These resources offer specific instructions on downloading and installing GPU drivers for different operating systems and GPU models.

Question #4

A deployment engineer is connecting the network cables on an XE9680 server. The data center administrator wants to know why the server does not have an OCP card for network connectivity.

How should the engineer respond to the administrator’s query?

A . An OCP card is required for the server to achieve POST when powered on.
B . The LOM card acts as an OCP card and supports OCP 3.0.
C . The OCP card is an optional component.
D . The server does not support an OCP card.

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Question #5

DRAG DROP

What is the sequence of steps to install an XE9680 server in a new rack.

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