DES-4421 Specialist - Implementation Engineer, PowerEdge MX Modular Exam Practice Questions
Prepare for DES-4421 with more than an answer.
- Level
- Specialist
Domains covered on the exam 5
- MX-Series Portfolio Overview14%
- MX7000 Administration38%
- MX7000 Installation17%
- MX7000 Implementation17%
- MX7000 Troubleshooting14%
- 1
A senior infrastructure architect is designing a high-density compute environment using the PowerEdge MX7000 chassis. The design requires a Multi-Chassis Management (MCM) group to simplify administration. The architect plans to daisy-chain the management networks of multiple chassis to minimize top-of-rack switch port usage. What is the maximum number of member chassis that can be managed by a single lead chassis in this configuration, excluding the lead itself, according to version 1.0 specifications?
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Correct answer: B
In a PowerEdge MX Multi-Chassis Management (MCM) group, a single lead chassis can manage up to 9 member chassis, creating a total group size of 10 chassis. This configuration allows for centralized management through the OME-M interface of the lead chassis.
- 2
An administrator is configuring the OpenManage Enterprise Modular (OME-M) network settings via the serial console on the Management Module. Which specific baud rate setting must be configured in the terminal emulator client to successfully establish the connection?
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Correct answer: B
The correct baud rate for the serial connection to the MX7000 Management Module is 115200. While legacy Dell switches often used 9600, the MX platform management serial interface operates at 115200, 8 data bits, no parity, 1 stop bit, and no flow control.
- 3
A systems engineer is implementing a new MX7000 chassis populated with six MX740c compute sleds and two MX5016s storage sleds. The engineer needs to configure the storage sleds so that specific drives are mapped to specific compute nodes. Which storage assignment mode must be selected in OME-M to achieve this granularity?
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Correct answer: B
Drive-Assigned Mode allows individual drives within the MX5016s to be mapped to specific compute sleds. Enclosure-Assigned Mode maps all drives in the storage sled to a single compute sled or a cluster of nodes sharing the storage.
- 4
While troubleshooting a fabric mismatch issue in an MX7000 chassis, an administrator notices that the I/O Modules (IOMs) in Fabric B are not communicating with the compute sleds as expected. The chassis contains MX740c sleds with single mezzanine cards installed in Mezzanine Slot 1 (Fabric A). Why is there no connectivity to Fabric B?
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Correct answer: A
In the MX740c compute sled, Mezzanine Slot 1 maps to Fabric A (IOM slots A1/A2), and Mezzanine Slot 2 maps to Fabric B (IOM slots B1/B2). Without a card in Slot 2, there is no physical connectivity to Fabric B.
- 5
A deployment engineer is configuring a Multi-Chassis Management (MCM) group. The engineer needs to physically cable the management network for the group. Which topology is supported for daisy-chaining the Management Modules (MM) of the member chassis to the lead chassis?
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Correct answer: A
The supported daisy-chain topology involves connecting the GB1 port (uplink/stacking) of the Lead chassis to the management network, and using the GB2 port to daisy-chain to the GB1 port of the next member chassis in the group. This creates a redundant ring if the last member connects back to the lead's secondary MM, though a simple daisy chain is the standard description.
- 6
What is the primary function of the Fabric Resource Director (FReD) component within the MX7000 chassis architecture?
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Correct answer: B
FReD (Fabric Resource Director) is a microcontroller on the chassis midplane/PDB that manages critical low-level functions like thermal monitoring and power sequencing, ensuring the chassis remains safe even if the Management Modules are offline or rebooting.
- 7
A new administrator has just taken over an MX7000 Multi-Chassis Management Group and two-racks of PowerEdge servers. The previous administrator no longer works at the company and is not available. No one knows the password for the OME-M interface and the default password is not working.
What must be used to reset the password?
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Correct answer: D
Reference: https://www.dell.com/support/manuals/us/en/04/poweredge-
mx7000/omem1.00.01_ug/recovering-passwords?guid=guid-553bf2dd-c491-4117-85f5-
c2fbfde4ef12lang=en-us - 8
A server sled has a single mezzanine card installed in the correctly supported slot.
To which IOM fabric(s) does the sled have access?
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Correct answer: B
