Dell EMC Dell PowerEdge XE9680 and XE8640 Install D-PEXE-IN-A-00 Exam Practice Test

Answer : B

For a customer implementing PowerEdge XE9680 servers in a data center with heating and cooling limitations, the NVIDIA A100 GPUs are a suitable choice. Here's a detailed explanation:

GPU Efficiency: The NVIDIA A100 GPUs are known for their energy efficiency, which is crucial in environments with heating and cooling constraints1.

Performance: These GPUs provide excellent performance for CGI production, supporting complex rendering tasks1.

Compatibility: The PowerEdge XE9680 supports a range of powerful GPUs, including the NVIDIA A100, which is designed for AI, machine learning, and high-performance computing tasks1.

Cooling Requirements: The NVIDIA A100 GPUs have a lower thermal design power (TDP) compared to the NVIDIA H100 GPUs, making them more suitable for data centers with limited cooling capabilities1.

By choosing NVIDIA A100 GPUs, the customer can ensure that their PowerEdge XE9680 servers will deliver the required performance for CGI production while adhering to the data center's heating and cooling limitations.

Answer : A, B

When installing a Cable Management Arm (CMA) on the Dell PowerEdge XE9680 server, there are specific considerations to ensure proper installation and operation:

CMA Orientation:

Installation Flexibility: The CMA for the XE9680 can be installed to open on either the left or right side of the server. This flexibility allows for better management of space within the rack and ensures that the CMA can accommodate the specific layout of your data center (Dell) (Dell).

Cable Routing:

Avoid Routing Optical Cables Through the CMA: Optical cables are typically more sensitive and less flexible compared to other types of cables. Routing them through the CMA can lead to bending, twisting, or other stresses that may damage the cables and affect network performance. Therefore, it is advised not to route optical cables through the CMA (Dell) (Dell).

Installation Process:

Align and Install the CMA: Attach the CMA to the designated mounting points on the server rails. Ensure that it is securely fastened and aligned properly to avoid any issues when extending or retracting the server from the rack.

Organize Cables: Use the provided cable management features to route and secure other cables, ensuring they are not pinched or overly stressed. Avoid including optical cables in the CMA to prevent potential damage.

Post-Installation Checks:

Verify Movement: Ensure that the server can be smoothly extended and retracted with the CMA in place without any cables getting caught or strained.

Secure Connections: Double-check all cable connections to ensure they are secure and functioning correctly.

These steps are crucial for maintaining the integrity and performance of the server and the connected network infrastructure. Proper cable management not only ensures safety but also enhances the reliability and maintainability of the data center setup.

Dell PowerEdge XE9680 Installation and Service Manual (Dell).

Dell XE9680 Rack Rail with Cable Management Arm Information (Dell) (Dell).

Answer : B, C, E

To ensure the correct server rails are on-site for the installation of PowerEdge XE servers, it's essential to match the server model with the appropriate rail type. Based on the Dell Enterprise Systems Rail Sizing and Rack Compatibility Matrix, the following matches are correct:

XE9680 and B25: The XE9680 server is compatible with the B25 rail type, which is designed to support the size and weight of this particular server model1.

XE9640 and B25: Similarly, the XE9640 server can also utilize the B25 rail type for secure mounting in a rack1.

XE9680 and B28: Additionally, the XE9680 server is compatible with the B28 rail type, providing an alternative mounting solution1.

It's important to note that the rail types are specific to the server models and are designed to ensure a secure and stable installation in the customer's rack. The Dell Rail Sizing and Rack Compatibility Matrix provides detailed information on the compatibility of different server models with their respective rail types. This document should be consulted to verify the correct rail type for each server model before proceeding with the installation1.

Answer : C

Understanding Stab-in Rails:

Stab-in rails are designed to simplify the server installation process. These rails enable a quick and straightforward installation of the server into the rack.

Compatibility and Usage:

Stab-in rails are specifically designed for use in 4-post racks with square holes. This compatibility ensures stability and proper fitting within the rack structure.

Installation Process:

Before initiating the installation, verify that the rack is a 4-post, square hole type.

Position the stab-in rails to align with the square holes on the rack. Typically, stab-in rails have tabs that fit precisely into these square holes.

Mounting the Server:

Once the rails are securely attached to the rack, the server can be mounted. The design of the stab-in rails facilitates a smooth insertion of the server, ensuring it is securely held in place.

Ensuring Proper Fit:

After the server is mounted, check to ensure that it is level and securely attached. This step is crucial to prevent any movement or displacement that could occur due to vibrations or physical disturbances.

Dell EMC PowerEdge XE9680 and XE8640 Installation and Service Manual: This manual provides detailed instructions on the use and installation of stab-in rails, including compatibility with specific rack types.

Dell EMC Technical Specifications Guide: Offers comprehensive specifications and compatibility information for different mounting and installation hardware used with Dell PowerEdge servers.

Answer : B

The PowerEdge XE9680 server supports a high level of network throughput, which is achieved through its PCIe risers and network PCI card capacity. Here's the detailed information:

PCIe Slots: The PowerEdge XE9680 server supports up to10 PCIe Gen5 slots1. These slots are used to install PCIe devices, including network cards, which are essential for achieving high network throughput.

Riser Cards: Riser cards are used in servers to extend the PCIe slots and make them more accessible for installing additional cards, such as network cards.

Network Card Support: Each riser can support multiple PCIe network cards, allowing for expansion and increased network throughput.

Configuration: For the greatest amount of network throughput, the server can be configured withfour risers, and each riser can accommodatetwo PCIe network cards1. This configuration maximizes the number of network cards and, consequently, the network throughput capability of the server.

By utilizing the full capacity of PCIe slots with the appropriate risers and network cards, the PowerEdge XE9680 can meet the customer's requirement for the highest network throughput possible.

Answer : C

Overview of OCP Cards:

Open Compute Project (OCP) cards are network interface cards designed to provide high-speed networking capabilities. They are often used in data center environments to enhance network performance and flexibility.

OCP Card on Dell PowerEdge XE9680:

For the Dell PowerEdge XE9680 server, an OCP card is not a mandatory component. The server can achieve Power-On Self-Test (POST) and function normally without an OCP card.

Optional Component:

The OCP card is considered an optional component for the XE9680 server. This means it can be added based on specific networking needs but is not essential for the server's basic operations.

Networking Alternatives:

The XE9680 server is equipped with various other network interface options. For instance, it has integrated network ports (LAN on Motherboard, or LOM) which provide necessary network connectivity out-of-the-box.

Customization and Upgrades:

The optional nature of the OCP card allows data center administrators to customize their servers based on their network performance requirements. If high-speed or specific networking features are needed, the OCP card can be added accordingly.

Communicating with the Administrator:

The deployment engineer should explain to the data center administrator that while the OCP card is not included by default, it can be added as per the data center's specific networking needs. The server's design supports flexibility in network configurations.

Dell EMC PowerEdge XE9680 Installation and Service Manual: This manual provides detailed information on the components and optional upgrades available for the XE9680 server.

Dell EMC Networking Guide: This guide outlines various networking options and configurations available for Dell PowerEdge servers, including the role and installation of OCP cards.

Answer : B

The PowerEdge XE9680 server is equipped with power supply units (PSUs) that are essential for its operation. Here's the power consumption information that the deployment engineer can provide:

PSU Specifications: Each PowerEdge XE9680 server comes withfour 2800-Watt, 15.6 Amp PSUs1. This specification is crucial for the data center manager to understand the power requirements for each server.

Total Power Requirement: With two servers per rack, each rack will have a total ofeight 2800-Watt PSUs. This information helps in calculating the total power draw for each rack.

Power Distribution Units (PDUs): While the number of PDUs required for high availability can vary, it's important to note that the server's PSUs feature aC22 input socket1. The data center manager should ensure that the PDUs in the rack are compatible with this type of connection.

Power Planning: The data center manager must plan for the power needed to supply power to the four racks, considering the power draw of the servers and any additional equipment that will be installed.

By providing this detailed power consumption information, the deployment engineer assists the data center manager in planning for the appropriate power infrastructure to support the PowerEdge XE9680 servers.