[2025年05月] 更新されたのはEMC D-PSC-MN-01問題集PDFオンラインエンジン
D-PSC-MN-01.PDFで問題解答PDFサンプル問題は信頼され続ける
EMC D-PSC-MN-01 認定試験の出題範囲：
| トピック | 出題範囲 |
|---|---|
| トピック 1 |
|
| トピック 2 |
|
| トピック 3 |
|
| トピック 4 |
|
質問 # 52
What are the essential verifications after preparing a PowerScale node for operation? (Select two)
- A. Data rebalancing is complete.
- B. License keys are validated.
- C. Cluster membership is intact.
- D. There are no pending alerts.
正解：C、D
質問 # 53
What type of NIC is used for the external network on a Dell PowerScale F200 node?
- A. Dual port 10/100 GbE
- B. Dual port 10/25 GbE or dual port 40/100 GbE
- C. Single port 10 GbE or dual port 25/40 GbE
- D. Dual port 10/40 GbE or single port 100GbE
正解：B
質問 # 54
Which components are considered key Field Replaceable Units (FRUs) in PowerScale nodes?
(Select two)
- A. Network cards
- B. Hard drives
- C. Power supplies
- D. Cooling fans
正解：B、C
質問 # 55
What type of privileges are required to perform tenant-specific administration?
- A. System admin privileges
- B. Zone role-based access control
- C. System root privileges
- D. Role-based access control
正解：B
解説：
Tenant-specific administration involves managing specific zones or tenants within a Dell EMC PowerScale environment. This requires a certain level of privileges that allows administrators to control resources without having full system-wide access.
Zone Role-Based Access Control:
* Definition:
* Zone role-based access control allows administrators to assign permissions to users or groups for specific zones or tenants.
* Functionality:
* Enables delegation of administrative tasks within a particular zone without granting system-wide privileges.
* Benefits:
* Enhances security by limiting access.
* Simplifies management in multi-tenant environments.
Why Other Options Are Incorrect:
* System Root Privileges (Option B):
* Root privileges grant full access to the entire system, which is not necessary for tenant-specific tasks.
* System Admin Privileges (Option C):
* Similar to root, system admin privileges are broader than needed.
* Role-Based Access Control (Option D):
* While general role-based access control is related,zonerole-based access control is specifically designed for tenant administration.
Dell PowerScale References:
* Dell EMC PowerScale OneFS Administration Guide:
* Chapter on Access Control and Authentication:
* Details how to implement zone role-based access control.
* Provides instructions on assigning roles to users within specific zones.
* Best Practices:
* Regularly review and update access permissions.
* Use the principle of least privilege to enhance security.
質問 # 56
Which external network ports are available on Dell EMC PowerScale Gen 6.5 nodes?
- A. 10GigE, 25GigE, or 100GigE
- B. 1GigE, 25GigE, or 100GigE
- C. 1GigE, 10GigE, or 25GigE
- D. 10GigE, 25GigE, or 40GigE
正解：A
解説：
Dell EMC PowerScale Gen 6.5 nodes support high-speed network interfaces for external connectivity.
Available External Network Ports:
* 10 Gigabit Ethernet (10GbE)
* 25 Gigabit Ethernet (25GbE)
* 100 Gigabit Ethernet (100GbE)
Details:
* 10GbE: Common in many data centers, suitable for moderate workloads.
* 25GbE: Offers higher bandwidth, ideal for performance-intensive applications.
* 100GbE: Provides maximum throughput, supporting the most demanding workloads.
Dell PowerScale References:
* Dell EMC PowerScale Networking Guide:
* Network Interface Options Section:
* Details supported network speeds and configurations for Gen 6.5 nodes.
* Best Practices:
* Match network infrastructure to the capabilities of the nodes.
* Ensure switches and cabling are compatible with chosen network speeds.
質問 # 57
How should a technician proceed after installing a new FRU in a PowerScale node?
- A. Perform a node reboot to integrate the FRU
- B. Validate the FRU through the cluster's management interface
- C. Conduct a benchmark performance test
- D. Notify all users about the maintenance completion
正解：B
質問 # 58
What is a critical consideration when replacing a network card, a key CRU, in a PowerScale node?
- A. The node's operating system is reinstalled.
- B. The card is hot-swappable.
- C. The card is compatible with the node's hardware version.
- D. The new card has identical physical dimensions.
正解：C
質問 # 59
Which actions are necessary to prepare a site for PowerScale hardware installation? (Select two)
- A. Verifying the availability of adequate power sources
- B. Planning for future expansion
- C. Ensuring the floor can support the weight of the hardware
- D. Arranging for specialized cooling systems
正解：A、C
質問 # 60
When preparing a node for operation post-maintenance, what is a key software-related step?
- A. Checking for and applying any available software updates
- B. Restoring the node to its factory settings
- C. Reinstalling the node's operating system
- D. Reconfiguring user access permissions
正解：A
質問 # 61
What security mechanism is used in the OneFS API to encrypt communications?
- A. RBAC
- B. HTTPS
- C. OpenSSH
- D. SED
正解：B
解説：
The OneFS API usesHTTPS(HyperText Transfer Protocol Secure) to encrypt communications, ensuring secure data transfer between clients and the PowerScale cluster.
* OneFS API and Security:
* OneFS API:
* Provides a RESTful interface for programmatically managing and interacting with the PowerScale cluster.
* Security Importance:
* Protects sensitive data and configuration information transmitted via the API.
* Use of HTTPS:
* Encryption:
* HTTPS uses TLS (Transport Layer Security) to encrypt data in transit.
* Prevents eavesdropping and man-in-the-middle attacks.
* Authentication:
* Supports certificate-based authentication to verify the identity of the server.
* Standard Protocol:
* Widely accepted and supported for secure web communications.
* Why Other Options Are Less Suitable:
* Option A (SED):
* Self-Encrypting Drives (SEDs) encrypt data at rest, not communications.
* Option B (RBAC):
* Role-Based Access Control (RBAC) manages user permissions and authorization, not encryption.
* Option D (OpenSSH):
* OpenSSH provides secure shell access, not used for the OneFS API communications.
* Implementing HTTPS with OneFS API:
* Default Behavior:
* OneFS API endpoints are accessed via HTTPS by default on port 8080 or 8080.
* Certificate Management:
* Administrators can install custom SSL certificates to ensure secure connections.
* API Calls:
* Applications interacting with the OneFS API must support HTTPS requests.
Dell PowerScale References:
* Dell EMC PowerScale OneFS API Reference Guide:
* Details on API usage and security considerations.
* Dell EMC PowerScale OneFS API Reference Guide
* Dell EMC PowerScale OneFS Security Configuration Guide:
* Provides information on configuring HTTPS and managing certificates.
* Dell EMC PowerScale OneFS Security Guide
* Knowledge Base Articles:
* Article ID 000123006:"Securing OneFS API Communications with HTTPS"
* Article ID 000123007:"Configuring SSL Certificates for OneFS API Access"
質問 # 62
A platform engineer must replace a failed chassis on a Dell PowerScale Gen6 cluster. What must the engineer do after powering off the nodes?
- A. Remove the drives and compute modules and reimage each drive before installing them in the chassis.
- B. Remove the drives, install the chassis, and place the drives in the new chassis.
- C. Remove the drive sleds and motherboard and transfer them to the new chassis.
- D. Remove the drive sleds, label them for identification, and place the drive sleds In the newly installed chassis.
正解：D
解説：
When replacing a failed chassis in a Dell PowerScale Gen6 cluster, it's critical to preserve the data and configuration by maintaining the exact placement of the drive sleds. After powering off the nodes, the engineer should:
* Remove Drive Sleds:
* Carefully remove each drive sled from the failed chassis.
* Label for Identification:
* Label each drive sled with its corresponding slot number or unique identifier.
* Install New Chassis:
* Mount the new chassis in the rack where the failed one was located.
* Reinstall Drive Sleds:
* Insert the labeled drive sleds into the same slots in the new chassis.
* Power On Nodes:
* Power on the nodes and verify that they boot correctly and rejoin the cluster.
This procedure ensures that the drives remain in their original configuration, preserving data integrity and cluster settings. There's no need to transfer motherboards or reimage drives, as these actions could disrupt cluster operations and lead to data loss.
References:
* Dell PowerScale Hardware Replacement Guide- Chassis Replacement Procedures
* Dell PowerScale OneFS Administration Guide- Best Practices for Hardware Maintenance
* Dell Knowledge Base Article- Preserving Drive Order During Chassis Replacement
質問 # 63
When setting up internal networking for a PowerScale cluster, what is a crucial requirement?
- A. Serial connection between nodes
- B. Public IP addresses for all nodes
- C. Private interconnects between nodes
- D. Unrestricted internet access
正解：C
質問 # 64
An implementation engineer is connecting new Dell EMC PowerScale F600 nodes to the backend.
What network speeds are supported for the backend?
- A. 10 GbE or 25 GbE
- B. 10 GbE or 40 GbE
- C. 25 GbE or 40 GbE
- D. 25 GbE or 100 GbE
正解：D
解説：
Dell EMC PowerScale F600 nodes utilize high-speed Ethernet connections for back-end networking to facilitate fast and efficient cluster communication.
Supported Back-End Network Speeds:
* 25 Gigabit Ethernet (GbE):
* Provides a balance between speed and cost.
* Suitable for clusters that require high performance but have budget considerations.
* 100 Gigabit Ethernet (GbE):
* Offers the highest available throughput.
* Ideal for clusters with demanding performance requirements.
Why Other Options Are Incorrect:
* Option A (10 GbE or 40 GbE):
* F600 nodes do not support these speeds for back-end networking.
* Option B (10 GbE or 25 GbE):
* 10 GbE is not supported on F600 back-end.
* Option D (25 GbE or 40 GbE):
* 40 GbE is not a supported back-end speed for F600 nodes.
Dell PowerScale References:
* Dell EMC PowerScale Networking Guide:
* Chapter on Back-End Networking:
* Lists supported network speeds for different node models.
* Confirms that F600 nodes support 25 GbE and 100 GbE for back-end connections.
* Best Practices:
* Match back-end network speeds across all nodes for optimal performance.
* Use high-quality cables and switches that support the required speeds.
質問 # 65
What is done with the components when a Gen6 single node is replaced?
- A. Transferred to the new node
- B. Sent to WWFA
- C. Returned to Dell
正解：C
解説：
When a Dell PowerScale Gen6 single node is replaced, the standard procedure is to return the entire faulty node, including all its components, back to Dell. This ensures proper handling, compliance with warranty agreements, and allows Dell to perform failure analysis if necessary.
* Node Replacement Process:
* Faulty Node Identification:A node exhibiting issues is identified for replacement.
* Data Protection:Before replacement, data is protected via OneFS, which ensures data is redistributed across the cluster to prevent data loss.
* Replacement Node Shipment:Dell ships a replacement node to the customer.
* Handling of Components:
* No Component Swapping:Components such as drives, memory modules, and CPUs are not transferred from the old node to the new one.
* Return Procedure:The entire faulty node, with all its components intact, is returned to Dell.
* Purpose of Return:Returning the node allows Dell to:
* Perform Diagnostics:Analyze the faulty components for failures.
* Manage Inventory:Ensure proper accounting of hardware.
* Environmental Compliance:Dispose of or recycle components according to regulations.
* Dell's Return Material Authorization (RMA) Policy:
* RMA Process:Dell issues an RMA for the faulty node, and the customer is responsible for returning it.
* Shipping Instructions:Detailed instructions are provided to safely package and ship the node back to Dell.
Dell PowerScale References:
* Dell EMC PowerScale Field Replacement Unit (FRU) Installation and Replacement Guide:
* Outlines the procedures for replacing nodes and the requirement to return faulty units to Dell.
* Dell EMC PowerScale OneFS Administration Guide:
* Provides information on cluster maintenance and node management.
* Warranty and Support Agreements:
* Specify the obligations for returning faulty hardware under service contracts.
質問 # 66
In the context of PowerScale, what is the primary function of the PAPI tool?
- A. To facilitate network configuration
- B. To provide physical console access
- C. To assist in hardware diagnostics
- D. To enable programmatic cluster management
正解：D
質問 # 67
A client plans to reconnect to a cluster automatically without Interruption.
Which two upgrade methods can be used to complete the upgrade while file service is still available to the client?
- A. Rolling upgrades
- B. Simultaneous upgrades
- C. Automated upgrades
- D. Parallel upgrades
正解：A、D
解説：
When a client plans to reconnect to a cluster automatically without interruption, they can useParallel upgradesandRolling upgradesto complete the upgrade while file services remain available.
* Rolling Upgrades:
* Definition:
* A rolling upgrade updates one node at a time while the rest of the cluster continues to serve data.
* Minimizes service disruption by ensuring that clients can continue accessing data during the upgrade.
* Process:
* Nodes are sequentially taken out of service, upgraded, and then returned to the cluster.
* The OneFS operating system ensures data availability through redundant data paths.
* Benefits:
* Provides high availability.
* Ideal for environments where uptime is critical.
質問 # 68
Which document was replaced by the PEQ?
- A. Configuration Guide
- B. Site Preparation and Planning Guide
- C. Web Administration Guide
- D. Supportability and Compatibility Guide
正解：B
解説：
The Pre-Engagement Questionnaire (PEQ) is a tool used by Dell EMC to gather essential information about a customer's environment before deployment.
PEQ Replaces Site Preparation and Planning Guide:
* Purpose of PEQ:
* Collects detailed information on site readiness, network configuration, and customer requirements.
* Ensures that all necessary preparations are made for a smooth implementation.
* Why It Replaced the Site Preparation and Planning Guide:
* Streamlines the process by consolidating information gathering into a single document.
* Provides a more interactive and customer-focused approach.
Why Other Options Are Incorrect:
* Web Administration Guide (Option B):
* Provides instructions on administering the system via the web interface.
* Supportability and Compatibility Guide (Option C):
* Details supported hardware and software configurations.
* Configuration Guide (Option D):
* Offers guidance on configuring the system post-installation.
Dell PowerScale References:
* Dell EMC PowerScale Implementation Resources:
* PEQ Documentation:
* Describes the purpose and usage of the PEQ.
* Highlights how it replaces the previous Site Preparation and Planning Guide.
* Best Practices:
* Complete the PEQ thoroughly and accurately.
* Use the PEQ to facilitate communication between the implementation team and the customer.
質問 # 69
A customer has a Dell PowerScale Gen 6 cluster that is using an Ethernet backend. They have Gen 5 nodes and cables from a previous installation. A PowerScale platform engineer is on site. The customer asks the engineer if they can repurpose the Gen 5 equipment on their Gen 6 cluster.
What should the engineer advise the customer?
- A. Gen 5 nodes cannot be joined to a cluster with Gen 6 nodes running an Ethernet backend
- B. Order new cables with the right connectors
- C. Daisy chain the Gen 5 backend by InfiniBand cables, then plug them directly to the Gen 6 primary node
- D. An InfiniBand switch must be paired with the Gen 6 back-end Ethernet switches to allow the Gen 5 nodes to join
正解：A
質問 # 70
What type of upgrade on a Dell PowerScale cluster requires the least amount of time?
- A. Parallel
- B. Simultaneous
- C. Rolling
- D. Automatic
正解：B
解説：
Asimultaneous upgradeon a Dell PowerScale cluster involves upgrading all nodes at the same time. This method requires the least amount of time compared to other upgrade types because it minimizes the total duration by handling the upgrade process concurrently across the entire cluster.
Types of Upgrades:
* Simultaneous Upgrade:
* Definition:All nodes are upgraded at the same time.
* Advantages:
* Fastest upgrade method.
* Reduces total upgrade time significantly.
* Disadvantages:
* Requires cluster downtime; not suitable for environments that need continuous availability.
* Rolling Upgrade:
* Definition:Nodes are upgraded one at a time or in small groups.
* Advantages:
* No cluster downtime; services remain available.
* Disadvantages:
* Takes longer to complete as each node is upgraded sequentially.
* Parallel Upgrade:
* Definition:Nodes are upgraded in parallel batches.
* Advantages:
* Balances upgrade speed and availability.
* Disadvantages:
* May still require some service interruption.
* Automatic Upgrade:
* Definition:The upgrade process is automated but follows the rolling or parallel methodology.
* Advantages:
* Reduces manual intervention.
* Disadvantages:
* Upgrade time depends on the underlying method used (rolling or parallel).
Why Simultaneous Upgrade Requires the Least Amount of Time:
* Concurrent Processing:Upgrading all nodes at once leverages parallelism, drastically reducing the total time needed.
* No Sequential Steps:Eliminates the wait time associated with upgrading nodes one after another.
* Use Case Considerations:Suitable for non-production clusters or environments where downtime is acceptable.
Important Considerations:
* Cluster Downtime:Simultaneous upgrades will render the cluster unavailable during the process.
* Risk Management:Any issues during the upgrade can affect the entire cluster; thorough planning and backups are essential.
References:
* Dell PowerScale OneFS Upgrade Planning and Process Guide- Details on upgrade methods and best practices.
* Dell PowerScale Administration Guide- Instructions and considerations for performing cluster upgrades.
* Best Practices for OneFS Upgrades- Recommendations for selecting the appropriate upgrade method based on environment needs.
質問 # 71
In the context of adding a node to a PowerScale cluster, what is the purpose of smartfailing?
- A. It tests the node's compatibility with the cluster environment.
- B. It allows the node to join the cluster without disrupting existing operations.
- C. It provides a mechanism for graceful removal of a node.
- D. It ensures data is evenly distributed across the cluster.
正解：C
質問 # 72
A Dell EMC PowerScale customer added five new nodes and SmartFailed two old nodes. LNNs are not insequence.
Which command(s) can the customer use to modify the LNN for a node?
- A. Isi config, followed by isi Innset--<SNO><new-Inn>
- B. Isi config, followed by Innset
- C. Isi node --Inn<old-Inn><old-Inn>
- D. Isi device node -Inn <old-Inn><old-Inn>
正解：A
解説：
In a Dell EMC PowerScale cluster, each node is assigned a Logical Node Number (LNN) that identifies it within the cluster. When nodes are added or removed (e.g., via SmartFail), LNNs may become non- sequential. To modify the LNNs and restore sequential order, specific commands must be used.
Steps to Modify the LNN for a Node:
* Enter Configuration Mode:
* Use the isi config command to enter the configuration shell.
# isi config
* This mode allows for administrative tasks that can alter the cluster configuration.
* Use the lnset Command:
* The lnset command is used to set the LNN of a node.
# lnset --sn <SNO> <new-LNN>
* --sn <SNO> specifies the serial number of the node.
* <new-LNN> is the desired Logical Node Number.
Example:
If you want to set the LNN of a node with serial number ABC12345 to 6:
# isi config
# lnset --sn ABC12345 6
Why Option C is Correct:
* Accurate Command Sequence:
* Option C correctly specifies entering isi config, followed by using lnset with the serial number (<SNO>) and the new LNN.
* Proper Syntax:
* The command includes all necessary parameters to change the LNN.
Why Other Options Are Incorrect:
* Option A and B:
* Commands isi device node and isi node with --lnn options are incorrect or incomplete for changing LNNs.
* Option D:
* Simply stating lnset without specifying the serial number and new LNN is insufficient.
Dell PowerScale References:
* Dell EMC PowerScale OneFS CLI Administration Guide:
* Section on Node Management Commands:
* Details the usage of isi config and lnset commands.
* Provides syntax and examples for changing LNNs.
* Notes on LNN Changes:
* Warns that changing LNNs can impact cluster operations and should be performed during maintenance windows.
* Best Practices:
* Before Changing LNNs:
* Ensure that the cluster is in a healthy state.
* Notify users of potential service impacts.
* Backup critical configuration data.
* During LNN Change:
* Carefully input the serial number and desired LNN to avoid mistakes.
* Verify that the new LNN is not already in use.
* After Changing LNNs:
* Exit the configuration mode with exit.
* Check cluster status using isi status to confirm that the node has been assigned the new LNN.
* Update any documentation to reflect the new node numbering.
Caution:
* Modifying LNNs is an advanced operation that can affect cluster communication.
* It is recommended to consult Dell EMC Support or refer to official documentation before proceeding.
質問 # 73
What does the process of smartfailing a node involve?
- A. Temporarily removing the node from service
- B. Physically replacing the node hardware
- C. Updating the cluster configuration database
- D. Transferring data to other nodes in the cluster
正解：A
質問 # 74
Which cluster interface provides the most detailed network traffic statistics and enables file and directory operations on the cluster?
- A. Platform API
- B. CLI
- C. Serial console
- D. Web console
正解：B
解説：
The Command Line Interface (CLI) provides the most comprehensive and detailed interaction with a Dell PowerScale cluster. Through the CLI, administrators have access to a wide range of commands that offer detailed network traffic statistics, system performance metrics, and the ability to perform granular file and directory operations.
While the Web console offers a user-friendly graphical interface for cluster management, it may not provide the same level of detail or the full set of functionalities available in the CLI. The Serial console is primarily used for initial setup or troubleshooting when network access is unavailable. The Platform API allows for programmatic access but requires additional development effort to utilize.
The CLI is accessible via SSH and provides tools like isi statistics for detailed performance metrics and isi commands for file system operations. This makes it the most powerful interface for administrators needing in- depth information and control over the cluster.
References:
* Dell PowerScale OneFS Command-Line Administration Guide
* Dell PowerScale OneFS CLI Reference Guide
質問 # 75
A platform engineer needs to power down a Dell PowerScale node to perform an FRU replacement.
Which command should they run first before making the replacement?
- A. isi_hwmon -s
- B. isi_celog_monitor -a
- C. isi healthcheck
- D. isi_gather_info
正解：D
質問 # 76
......
EMC D-PSC-MN-01問題集PDFのベストを目指すなら問題集を使おう 目指そう高得点：https://www.jpntest.com/shiken/D-PSC-MN-01-mondaishu
Dell Storage D-PSC-MN-01試験と認定テストエンジン：https://drive.google.com/open?id=1jKcDj22_4a3v6XWt9KcdO5UU_zoWvrcG