D-PST-MN-A-01 시험 - DELL EMC실제시험문제와 답 - 97문항

Question No : 1

A Field Service Engineer has just completed an I/O module replacement (FRU) in Node A and has powered the node back on. The node boots up, and the physical power LED is solid green. However, the SAN administrators report that the newly installed front-end Fibre Channel ports are not active on the fabric.
System Log Snippet (Node A):
[INFO] POST completed successfully.
[INFO] Node operational_state transitioning to Normal.
[WARN] CRU/FRU database mismatch: Expected IOM 1 WWN [old_WWN], Found [new_WWN].
[INFO] Initiating hardware discovery process...
Based on the interaction between the node health verification sequence and FRU replacement procedures, which TWO actions are required to verify the new hardware and restore host connectivity? (Select all that apply.)

A.Issue a node power_off command to Node B to temporarily force the cluster software to bind exclusively to the new Node A I/O module.
B.Ignore the warning log as a false positive, since a solid green power LED guarantees all internal CRUs/FRUs are fully functional.
C.Run the svc_appliance_shutdown script on the appliance to perform a factory reset, clearing the old WWN bindings from the NVRA
D.Connect via PSTCLI and verify that the hardware discovery process has successfully registered the new I/O module's WWNs in the cluster database.
E.Verify the specific port link and activity LEDs directly on the new I/O module to confirm physical layer connectivity with the SAN switch.

정답:

Question No : 2

A Storage Platform Engineer must replace a 32Gb Fibre Channel I/O module (CRU) on Node
A. The PowerStore cluster is heavily utilized. The management network is entirely down, so the engineer connects to the Service Port on Node A.
Rear Visual Inspection:
- Base Enclosure Fault LED: Solid Amber
- Node A Fault LED: Solid Amber
- Node A, I/O Module 0: Link LEDs Unlit
To safely execute this replacement while gathering the necessary forensics for Dell Support, which THREE sequenced steps must the engineer execute via the Service LAN? (Select all that apply.)
A. Visually verify that the Link LEDs on the failed I/O module transition to a blinking green state, indicating that the PCIe bus has been safely isolated for physical hot-swap extraction.
B. Execute svc_cluster_failover -node B to forcefully hijack the management IP addresses, bypassing the down network switch to restore the primary UI.
C. Execute svc_dc run -profile hardware to generate and locally extract a targeted support materials bundle, preserving the forensic state of the failure before altering the hardware.
D. Execute svc_node shutdown specifically on Node A to gracefully flush its write cache and force host MPIO to seamlessly transition all active optical traffic to Node B.
E. Execute svc_diag -s hardware_check to confirm the I/O module fault and ensure no other hidden internal FRU faults (like a BBU or DIMM) are contributing to the solid amber Node LED.

정답: C, D, E

Question No : 3

UI rendered in English.
Based on the tight architectural coupling between software upgrade paths and presentation layer binaries, which THREE statements explain this behavior and define the necessary remediation? (Select all that apply.)

A.Language Packs are strictly bound and compiled to specific PowerStoreOS major/minor versions because the underlying UI strings, menus, and feature sets change significantly between releases.
B.The NDU process automatically detects third-party UI modifications and purges them to ensure the new operating system boots into a clean, factory-default presentation state.
C.The analyst must execute a hidden PSTCLI command (svc_ui_rebind --lang ES) to force the new 4.0.0.0 OS to recognize and utilize the older 3.2.0.0 localization files still residing on the NVMe drives.
D.When the cluster upgraded from 3.2.0.0 to 4.0.0.0, the older 3.x Spanish Language Pack became incompatible with the new 4.x UI architecture and was intentionally decoupled by the system.
E.The customer must navigate back to Dell Support, download the specific Spanish Language Pack compiled for PowerStoreOS 4.0.0.0, and perform the upload/upgrade process again.

정답:

Question No : 4

During a routine hot-swap of a degraded power supply, an inexperienced technician commits a procedural error that results in a complete power loss to the node and a subsequent Data Unavailable (DU) event on the cluster.
Event Log Sequence (Node A):
[10:14:22] WARN: PSU 1 internal fault detected. Power redundancy lost.
[10:14:30] INFO: Technician arrives on site.
[10:14:45] CRIT: AC power lost on PSU 0 Node A.
[10:14:45] FATAL: Node A unexpected power loss. Halting immediately.
Which TWO anti-patterns would directly cause this catastrophic outcome during a hot-swap attempt? (Choose 2.)
A. The technician failed to wear a grounded ESD wristband, causing a static discharge that shorted the midplane upon approaching the rack.
B. The technician extracted the faulty power supply without first issuing a PSTCLI command to logically offline the power module from the cluster.
C. The technician attempted to replace the power supply while Node A was already operating in a degraded single-PSU state due to an active facility power outage on the A-feed.
D. The technician disconnected the power cord from the healthy peer power supply (PSU 0) instead of the faulted unit (PSU 1).

정답: C, D

Question No : 5

A Dell Customer Success Engineer instructs a customer to run the svc_network_check service script. Node B has unexpectedly dropped off the management network, despite Node A continuing to function perfectly and all host I/O remaining active.
Customer executes script via Node A Service Port:
> svc_network_check run
[INFO] Executing Layer 1 Interface validation... PASS
[INFO] Executing Layer 3 Gateway validation... PASS
[WARN] Executing ICM Path validation... FAIL (Node B Unreachable)
Based on the deep diagnostic output of this specific service script, which THREE technical evaluations does svc_network_check automatically perform to isolate connectivity faults? (Select all that apply.)

A.It verifies the physical Layer 1 link state (up/down) of the designated management ethernet ports on the back of the appliance.
B.It tests the Intra-Cluster Management (ICM) pathways to verify that Node A and Node B can successfully communicate with each other over the internal midplane network.
C.It automatically alters the appliance's VLAN tagging configuration to attempt to force a connection to a secondary redundant core switch.
D.It executes targeted ping tests against the configured default gateway and external DNS servers to confirm outbound Layer 3 routing is intact.
E.It conducts a packet trace (PCAP) on the 25GbE data ports to ensure that active iSCSI host traffic is not saturating the management plane.

정답:

Question No : 6

An Infrastructure Operations Engineer is creating a training module for junior staff on how to manage out-of-band firmware updates. The engineer lists several actions that represent severe misunderstandings of the PowerStore architecture.
Which TWO statements represent dangerous anti-patterns regarding the execution of drive firmware updates? (Choose 2.)

A.Running the svc_health_check script immediately prior to the drive firmware update to verify that the cluster is in a 'Normal' state.
B.Attempting to physically pull individual drives from the chassis to flash them using an external workstation to speed up the cluster update process.
C.Assuming that applying a standalone drive firmware update package will automatically patch the base nodes with the latest PowerStoreOS security fixes.
D.Scheduling the drive firmware update during a period of exceptionally low host I/O utilization to minimize the overall execution duration.
E.Uploading the drive firmware .tgz package through the standard Settings > Upgrades menu instead of the dedicated Hardware component view.

정답:

Question No : 7

A Technical Support Analyst is guiding a customer through a catastrophic failure response. Node A suffered a motherboard failure and was replaced (FRU). However, the cluster refuses to exit its degraded state.
Service Port Execution (Node A):
> svc_diag -s hardware_check
[INFO] POST... PASS
[INFO] OS Boot... PASS
[WARN] Cluster Sync... BLOCKED (Peer Version Mismatch)
Service Port Execution (Node B):
> svc_dc run -upload
[ERROR] SupportAssist tunnel unavailable. Archiving locally.
Synthesizing these two out-of-band script outputs, which TWO actions dictate the correct remediation path for the analyst? (Choose 2.)

A.The analyst must immediately dispatch a replacement motherboard for Node B, as the version mismatch indicates a spreading hardware corruption.
B.The analyst must instruct the customer to reboot Node B to force it to synchronize its older firmware with the newer firmware residing on the replacement Node
C.The analyst must force the cluster sync to bypass the version mismatch by executing the svc_cluster_override command on Node
D.The analyst must use an out-of-band USB reimaging tool or specific service scripts to manually upgrade/downgrade the new Node A's OS to perfectly match Node B's OS version.
E.The analyst must instruct the customer to manually extract the .tgz log bundle from Node B via SCP, as the degraded cluster state has disabled the outbound telemetry tunnel.

정답:

Question No : 8

A Dell Customer Success Engineer is guiding a customer through the initial diagnosis of a power anomaly on a PowerStore X-series cluster. The customer provides the current physical status of the appliance's rear components.
Component Status Indicators:
- Node A, Power Supply 0 (PSU0): AC Status LED is Solid Green
- Node A, Power Supply 0 (PSU0): Fault/DC LED is Solid Amber
- Node A, Power Supply 1 (PSU1): AC Status LED is Solid Green
- Node A, Power Supply 1 (PSU1): Fault/DC LED is Unlit
Which TWO statements accurately describe the diagnostic conclusion and the correct CRU replacement parameters for this scenario? (Choose 2.)

A.The solid amber LED indicates a critical failure within PSU0, requiring the unit to be replaced to restore full power redundancy.
B.The customer must use PSTCLI to gracefully power off Node A before attempting to physically extract the faulted PSU0.
C.The solid green AC Status LED on PSU0 indicates the component is healthy, and the amber LED merely signifies an active firmware update.
D.Power supplies are classified as CRUs and can be hot-swapped while the node continues running on the surviving healthy PSU1.
E.Because a power supply is classified as a FRU, the customer must immediately halt all I/O and wait for a certified Dell technician to arrive.

정답:

Question No : 9

What is the primary difference in operational impact between selecting "Power Off" on a specific Node versus selecting "Power Off" on the entire Appliance within the PowerStore Manager UI Hardware view?

A.Powering off a node triggers graceful failover of storage and NAS services to the peer node for high availability. Powering off the appliance halts all data services across the base enclosure.
B.Powering off a node is a disruptive event requiring host downtime for maintenance tasks, whereas powering off the appliance initiates a graceful migration of all active I/O workloads to a secondary cluster within the federation.
C.Powering off a node is designed to immediately clear the NVRAM write cache without destaging. Powering off the appliance securely destages the entire cache contents to non-volatile
D.2 boot drives prior to shutdown.
E.Powering off a node reboots the embedded VMware ESXi hypervisor component. Powering off the appliance commands the hardware management controller to physically disconnect NVMe solid-state drives from the midplane connectors.

정답:

Question No : 10

A Field Service Engineer is executing the replacement of a faulted NVMe NVRAM drive (CRU) on a PowerStore appliance. The drive is displaying a solid amber Fault LED.
Which TWO procedural steps are critical to ensuring the PowerStoreOS safely releases the old drive and correctly registers the new CRU replacement? (Choose 2.)

A.The engineer must perform the drive extraction and insertion rapidly (within under 5 seconds) to prevent PCIe bus timeout events that could disrupt backend storage link integrity.
B.After removing the faulted drive, wait 30C60 seconds before inserting the replacement to allow the OS to update hardware inventory and clear the slot status.
C.The engineer must manually execute the svc_storage_format CLI command with default parameters on the newly inserted drive via the dedicated Service Port interface immediately after physical insertion.
D.Prior to extracting any NVMe drive, the engineer must completely power down the entire base enclosure unit to safeguard against potential data corruption risks in the volatile write cache memory.
E.The engineer must visually verify the solid amber Fault LED to confirm the failed drive and prevent accidental removal of an active parity drive.

정답:

Question No : 11

An Infrastructure Operations Engineer is developing a troubleshooting matrix to help junior staff avoid false positives when correlating physical LED indicators with PowerStore Manager alert severities.
Which TWO actions represent severe anti-patterns when attempting to correlate node and drive physical LED indicators with management alerts? (Choose 2.)

A.Using the Service LAN port to pull diagnostic logs when a node displays a solid amber fault LED, as the primary management network is likely down.
B.Verifying the physical unlit status of a node's power LED to definitively confirm a hard power loss before trusting a stale 'Critical' alert in an unresponsive U
C.Correlating a blinking green activity LED on an NVMe drive with the absence of any 'Critical' or 'Major' alerts in the PowerStore Manager console.
D.Interpreting a blinking blue System Identification LED on a specific node as a 'Major' hardware fault indicator and initiating an unnecessary emergency host failover.
E.Assuming that a 'Warning' severity alert for a drive automatically corresponds to a solid amber physical fault LED, prompting the premature physical extraction of a healthy drive.

정답:

Question No : 12

What is the fundamental architectural distinction between the "Alerts" view and the "Events" (Event History) view when navigating the Monitoring section of the PowerStore Manager?

A.Specifically, the Alerts view is configured to exclusively display active hardware component failures―including disk drive faults, power supply anomalies, and controller errors―while the Events view is designed to exclusively capture and log software-level operating system errors, user authentication attempts, and various application-generated events in a time-ordered sequence.
B.The Alerts view displays active, stateful issues requiring admin action, while the Events view provides a chronological, read-only log of all system activities and changes.
C.Within PowerStoreOS, accessing the predictive failure analysis functionality embedded in the Alerts view necessitates the provisioning of a dedicated Enterprise licensing tier, whereas the Events view and its comprehensive logging capabilities are natively enabled across all standard PowerStore appliance models and deployment configurations at no extra licensing cost.
D.The Events view is a real-time, interactive dashboard that allows administrators to clear hardware faults, while the Alerts view is a read-only historical archive of those cleared faults.

정답:

Question No : 13

An Infrastructure Operations Engineer is developing a risk assessment matrix for a major data center migration. The project requires replacing several hardware components across a PowerStore cluster while maintaining strict Service Level Agreements (SLAs) for uptime.
Component Replacement Requirements:
- Component X: 4x NVMe SSD Drives
- Component Y: 2x Power Supply Units (one per node)
- Component Z: 1x Base Enclosure Chassis
Based on the architectural definitions of Customer-Replaceable Units (CRUs) versus Field-Replaceable Units (FRUs), which THREE statements accurately describe the operational constraints and trade-offs for these replacements? (Select all that apply.)

A.Component X (NVMe Drives) are CRUs and can be hot-swapped individually, but rapid sequential replacement requires monitoring the background rebuild resource consumption to avoid impacting host latency.
B.Component Y (Power Supplies) are CRUs that permit zero-downtime replacement, provided the engineer replaces them sequentially and verifies the peer PSU is sustaining the node's power load.
C.All listed components (X, Y, and Z) are classified as CRUs under the PowerStore self-service model, meaning the operations team assumes full liability for any data loss during the migration.
D.While Component X and Y are designed for customer replacement, Component Z is a massive FRU that requires a complete, disruptive power-off of the appliance and Dell technical execution.
E.Component Z (Base Enclosure) is a CRU that allows the customer to migrate the internal nodes to a new chassis without requiring a Dell-certified engineer or a cluster outage.

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Question No : 14

A Data Center Technician is troubleshooting a power redundancy alert on a PowerStore Base Enclosure. The management UI reports that Node B, PSU 1 has failed and requires replacement via the hot-swap procedure.
LED Observation Checklist (Rear of Node B):
- AC Status LED
- Fault/DC LED
Which TWO physical LED observations on the rear of Node B, PSU 1 would definitively confirm an internal hardware failure of the power supply, validating the hot-swap requirement? (Choose 2.)

A.The AC Status LED on PSU 1 is unlit, confirming the loss of input power from the external facility PD
B.The AC Status LED on PSU 1 is illuminated solid green, confirming the unit is receiving facility power.
C.The Fault/DC LED on PSU 1 is blinking green, indicating the unit is actively shedding load to the peer PS
D.The Fault/DC LED on PSU 1 is illuminated solid amber, indicating an internal power conversion failure.
E.Both the AC Status and Fault/DC LEDs are blinking amber simultaneously to indicate a thermal over-temperature event.

정답:

Question No : 15

A Data Center Operations Manager is submitting a support ticket after a power surge damaged multiple components in a PowerStore T-series appliance. The manager is requesting that replacement parts be shipped for local data center staff to install.
Damaged Component Inventory:
- Component 1: Node A Power Supply 0
- Component 2: Node B Internal Motherboard
- Component 3: Base Enclosure Front Bezel
- Component 4: Slot 2 NVMe Solid State Drive
Which component on this list will Dell Technical Support refuse to authorize for customer replacement, instead requiring a mandatory field engineer dispatch?

A.Component 4: Slot 2 NVMe Solid State Drive
B.Component 3: Base Enclosure Front Bezel
C.Component 1: Node A Power Supply 0
D.Component 2: Node B Internal Motherboard

정답:

DELL EMC D-PST-MN-A-01 시험