Guide (New 2024) Actual EMC D-MSS-DS-23 Exam Questions
D-MSS-DS-23 Exam Dumps Pass with Updated 2024 Certified Exam Questions
NEW QUESTION # 103
What are differences between the Dell Unity XT 380F array and the Dell Unity XT 880F array?
- A. Dell Unity XT 380F has converged network adapter ports. Dell Unity XT 880F has embedded mezzanine ports.
- B. Dell Unity XT 380F does not support dynamic storage pools. Dell Unity XT 880F supports dynamic storage pools.
- C. Dell Unity XT 380F has embedded mezzanine ports. Dell Unity XT 880F has converged network adapter ports.
- D. Dell Unity XT 380F supports dynamic storage pools. Dell Unity XT 880F does not support dynamic storage pools.
Answer: A
Explanation:
The Dell Unity XT 380F array is equipped with converged network adapter (CNA) ports, while the Dell Unity XT 880F array features embedded mezzanine ports. These differences in port configurations reflect the varied performance and connectivity options available in different models of the Unity XT series.
NEW QUESTION # 104
A Dell EMC PowerStore customer wants to schedule snapshots daily at 6 AM. Which snapshot frequency interval (in minutes) is available?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Reference: https://www.delltechnologies.com/en-us/collaterals/unauth/white- papers/products/storage/h18156-dell-emc-powerstore-snapshots-thin-clones.pdf (27)
NEW QUESTION # 105
When sizing a Dell EMC Unity Hybrid array, what are considerations for growth?
- A. Latency and queue depth
- B. Cache utilization and hardware bottlenecks
- C. General capacity and active data
- D. Port utilization and load balancing
Answer: C
Explanation:
Considerations for capacity growth (click) Overall growth vs active data growth (click) Moving or expanding "hot blocks" of active data Longer term planning for growth
NEW QUESTION # 106
Which onboard Dell PowerStore components does the LCC interface sit between?
- A. HDD drives and CPU board
- B. SCM drives and PCIe
- C. CPU board and NVMe drives
- D. SCM drives and SCSI drives
Answer: C
Explanation:
The LCC interface sits between the CPU board and the NVMe drives onboard Dell PowerStore components. The LCC interface is responsible for controlling the PCIe links between the CPU board and NVMe drives and allows for communication between the two. It also provides additional features such as error correction and power management for the NVMe drives.
NEW QUESTION # 107
At what point in a sales cycle is a site survey done to create a description of the site environment?
- A. Initial Engagement
- B. Defend
- C. Post-Sales
- D. Design
Answer: C
NEW QUESTION # 108
Which Dell EMC tool uses an HTML5 interface and best practices to predict storage performance?
- A. Unity Sizer
- B. Midrange Sizer
- C. UniSphere
- D. MiTrend
Answer: B
Explanation:
Reference: https://wuchikin.wordpress.com/2016/11/14/emc-unity-sizer/
NEW QUESTION # 109
What is a characteristic of tenant traffic on a Dell EMC Unity array?
- A. Separated by the associated VLANs at the Linux Kernel layer
- B. Separated by one associated VLAN providing data separation with increasing security at the Linux Kernel layer
- C. Separated by the associated subnet at the Linux Kernel layer
- D. Separated by the associated subnet providing data separation with increasing security at the network layer
Answer: A
NEW QUESTION # 110
What benefit do higher capacity drives provide in a Dell Unity All Flash array?
- A. Efficient utilization of front end ports
- B. Larger I/O size
- C. Less physical space is used
Answer: C
NEW QUESTION # 111
What information must a solution architect gather before they start designing a storage solution?
- A. Network Infrastructure, Storage, and Customer workload performance requirements
- B. LAN, SAN, and IOPS requirements
- C. Application response, LAN, and WAN requirements
- D. LAN, SAN, and Customer workload requirements
Answer: A
Explanation:
Before designing a storage solution, a solution architect must gather comprehensive information to ensure the system meets the customer's needs. The critical information includes:
* Network Infrastructure:Understanding the existing network setup, including LAN and WAN configurations, is essential. This information helps in planning how the storage solution will integrate with the current network and support data traffic efficiently.
* Storage Requirements:Detailed knowledge of the storage needs, including capacity, performance, and redundancy requirements, is crucial. This includes understanding the types of data to be stored, the expected data growth, and any specific storage technologies or features the customer may need.
* Customer Workload Performance Requirements:Insight into the customer's workload characteristics, such as IOPS (Input/Output Operations Per Second), throughput, latency requirements, and peak usage times, is vital. This information helps in designing a storage solution that can handle the expected workloads without performance bottlenecks.
By gathering this information, the solution architect can design a tailored storage solution that meets the customer's performance and capacity needs while integrating seamlessly with their existing infrastructure.
References:
* Dell Technologies PowerStore Documentation
* Dell Entry-Level and Mid-Range Storage Community
* Dell Storage Products Overview
NEW QUESTION # 112
Which feature helps to enable file service High Availability on Dell EMC PowerStore?
- A. NAS Network Heartbeat
- B. Redundant nodes with Live Volume enabled
- C. Multiple redundant network ports with system bond
- D. RAID protected disk drives
Answer: A
Explanation:
Reference: https://www.delltechnologies.com/resources/en-us/asset/white- papers/products/storage/h18157-dell-emc-powerstore-clustering-high-availability.pdf
NEW QUESTION # 113
Which two options are input parameters for Unity Designer? (Select 2)
- A. NAS Server Nodes
- B. Drive Modules
- C. Enclosures
- D. Block and File resources
- E. Host Access Modes
Answer: B
Explanation:
Unity Designer is a tool used to design and configure Dell EMC Unity storage systems. Two of the key input parameters for Unity Designer are Block and File resources, which include configuring LUNs, NAS servers, and file systems, and Drive Modules, which refer to the physical drives and their configurations within the storage system.
NEW QUESTION # 114
What is done during the preconfigure step of a PowerStore block import migration?
- A. Import schedule is set.
- B. Source system is added to the PowerStore.
- C. Destination volume is created.
- D. Network connectivity is set up.
Answer: D
Explanation:
During the preconfigure step of a PowerStore block import migration, network connectivity is set up. This step is crucial for ensuring that the source system can communicate with the PowerStore system, which is necessary for a successful data transfer during the migration process. Here are the detailed steps involved in this phase:
* Assess Network Requirements:Evaluate the existing network infrastructure to ensure it meets the requirements for a PowerStore migration. This includes checking the bandwidth, latency, and network topology.
* Configure Network Settings:Set up the network settings on both the source and destination systems.
This involves configuring IP addresses, subnet masks, gateways, and any other network parameters required for connectivity.
* Verify Connectivity:Use network diagnostic tools to verify that the source system can communicate with the PowerStore system. This might involve ping tests, traceroutes, and other connectivity checks.
* Secure the Network:Implement necessary security measures to protect the data during migration. This can include setting up firewalls, VPNs, or other security protocols to ensure data integrity and confidentiality.
* Establish Data Paths:Create and configure data paths between the source system and the PowerStore system. This ensures that data can be transferred efficiently and without interruption during the migration process.
* Test Network Performance:Conduct performance tests to ensure that the network can handle the data transfer load. This helps identify and mitigate any potential bottlenecks that could affect the migration.
References:
* Dell Technologies PowerStore Documentation
* Dell Entry-Level and Mid-Range Storage Community
* Dell Storage Products Overview
By ensuring that network connectivity is properly set up, the preconfigure step lays the foundation for a smooth and successful migration of block data to the PowerStore system.
NEW QUESTION # 115
What is Dell's recommendation for scheduling FAST VP relocation?
- A. Before backups or nightly batch processing
- B. After backups or nightly batch processing
- C. Before and After backups or nightly batch processing
- D. During backups or nightly batch processing
Answer: A
Explanation:
Dell recommends scheduling FAST VP (Fully Automated Storage Tiering for Virtual Pools) relocations before backups or nightly batch processing to ensure optimal performance. This scheduling helps to avoid conflicts and performance degradation that can occur if relocation tasks compete for resources during critical data operations such as backups. Pre-scheduling these relocations ensures that the storage system is balanced and ready for intensive operations without impacting performance.
NEW QUESTION # 116
What is the minimum number of IP addresses for optimal performance of PowerStoreX?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
* IP Address Requirements for PowerStoreX:
* Dell PowerStoreX appliances require a minimum number of IP addresses to ensure optimal performance and management.
* Optimal Performance:
* For optimal performance, each PowerStoreX appliance typically requires a minimum of 7 IP addresses. These include addresses for management, inter-cluster communication, and data services.
* Detailed Breakdown:
* 2 IPs for Management (1 for each node)
* 2 IPs for Inter-cluster communication (1 for each node)
* 2 IPs for iSCSI/Replication (1 for each node)
* 1 IP for NAS (optional but recommended for optimal performance)
* Dell Midrange Storage References:
* Dell PowerStore documentation and configuration guides outline the IP address requirements for various deployment scenarios.
* Community forums and support resources provide additional insights on optimal configurations.
References:
* Dell PowerStore Configuration Guide
* Dell Community on PowerStore Networking
NEW QUESTION # 117
What is a Dell recommendation when connecting ESXi hosts to PowerStore?
- A. Enable DelayedACK when configured using iSCSI.
- B. Use the default 8k host I/O size when using NFS.
- C. Configure Round Robin Multipathing with an IOPS limit of 1024.
- D. Configure a minimum of two NAS servers when using vVol Datastores.
Answer: C
Explanation:
* Connecting ESXi Hosts to PowerStore:
* When connecting ESXi hosts to PowerStore, it is crucial to follow best practices to ensure optimal performance and reliability.
* Round Robin Multipathing:
* Dell recommends configuring Round Robin Multipathing with an IOPS limit of 1024. This setting helps balance the load across multiple paths, preventing any single path from becoming a bottleneck and improving overall performance.
* Other Options:
* DelayedACK: Generally not recommended for iSCSI configurations due to potential performance issues.
* Two NAS Servers for vVol Datastores: Not a standard recommendation for general PowerStore-ESXi connectivity.
* Default 8k host I/O size for NFS: Not a specific recommendation for this context.
* Dell Midrange Storage References:
* Dell PowerStore documentation and VMware integration guides provide detailed best practices for connecting ESXi hosts, including multipathing configurations.
References:
* Dell PowerStore Best Practices Guide
* Dell Community on PowerStore and VMware
NEW QUESTION # 118
What is the recommended option when configuring Dell EMC PowerStore nodes for High Availability?
- A. Active/Active
- B. Active/Passive with AULA
- C. Synchronous Replication
- D. Active/Passive
Answer: C
Explanation:
Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industry- market/h18157-dell-emc-powerstore-clustering-high-availability.pdf
NEW QUESTION # 119
How are vVol datastores mounted in Dell EMC PowerStore storage during the creation of vVol datastores in the vSphere environment shared by ESXi hosts?
- A. Storage containers
- B. Volume Groups
- C. Storage Groups
- D. VMFS datastores
Answer: A
Explanation:
A storage container is used to present vVol storage from a PowerStore cluster to vSphere.
vSphere mounts the storage container as a vVol datastore and makes it available for VM storage.
When a PowerStore cluster is used to provide VM storage, user VMs should be provisioned on the vVol datastores. The default storage container is mounted automatically on the nodes of the cluster.
NEW QUESTION # 120
A customer has a Dell EMC SC9000 array with six SC420 enclosures running SCOS 7.3.
The enclosure configuration is as follows:
Two enclosures have write-intensive SSDs
Four enclosures have read-intensive SSDs
What is recommended as a general guideline for making spare drive assignments?
- A. 1 spare per drive type per shell
- B. 2 spares per drive type per array
- C. 2 spare drives per shell
- D. Dedicated spares are not required
Answer: D
Explanation:
"SCOS 7.3, Distributed Sparing: eliminates the need for dedicated spares by giving customers the option to distribute sparing capacity across all drives in the array."
NEW QUESTION # 121
What is the Dell EMC best practice for sizing and designing a Dell EMC SC Series solution?
- A. Front-end ports required for performance should always meet capacity needs
- B. Drive capacity should meet performance needs
- C. Size for performance first and capacity second
- D. Size for capacity; Data Progression should always meet performance needs
Answer: C
NEW QUESTION # 122
What is Dell recommendation for scheduling FAST VP relocation?
- A. Before backups or nightly batch processing
- B. After backups or nightly batch processing
- C. Before and After backups or nightly batch processing
- D. During backups or nightly batch processing
Answer: A
NEW QUESTION # 123
Which two drive types are supported by the Dell PowerStore Expansion Enclosure? (Select 2)
- A. SATA SSD
- B. NVMe SSD
- C. NVMe SCM
- D. SAS SSD
Answer: B,D
NEW QUESTION # 124
A Dell Unity XT 480F system ships with two embedded modules, one for each SP.
What does the embedded module provide?
- A. Management
- B. Field service only
- C. CNA connectivity
- D. A Fiber Channel connectivity
Answer: A
Explanation:
The embedded module in a Dell Unity XT 480F system provides management functionality for the system, such as control of the storage array, monitoring of system health and performance, and management of storage resources. This embedded module allows you to manage the system through an intuitive web-based interface or via command-line interface.
NEW QUESTION # 125
A customer has a data center with applications running on 16 volumes that are presented form a Dell Unity XT system, They want to design a DR ...According to Dell best practices, which design approach minimizes the impact on storage performance?
- A. Create the synchronous replication session before filling the source storage object with data
- B. Use Thick volumes within the replication group
- C. Include a Flash tier in a hybrid pool where synchronous replication is active
- D. Use multiple ports per controller for replication
Answer: A
NEW QUESTION # 126
An architect is designing a cost-effective PowerStore solution in sizer that is expected to perform in the event of a node failure without impacting the max performance. What must be considered?
- A. Provide a higher model than the sizer-recommended solution.
- B. Set Performance Growth to 50% while sizing.
- C. Set Max Performance Saturation to 50% while sizing.
- D. Plan and design a disaster recovery site.
Answer: C
Explanation:
* Designing for Node Failure:
* Ensuring a PowerStore solution performs optimally even in the event of a node failure requires careful consideration of performance thresholds.
* Max Performance Saturation:
* Setting the Max Performance Saturation to 50% during the sizing process ensures that in the event of a node failure, the remaining node can handle the load without performance degradation.
* This conservative approach allows the system to operate within safe performance limits, maintaining high availability and performance.
* Other Options:
* Disaster Recovery Site: Important for overall business continuity but does not directly address performance during a node failure within the same site.
* Performance Growth: Setting Performance Growth to 50% focuses on future growth rather than immediate redundancy considerations.
* Higher Model: While providing a higher model can offer more resources, it is not as cost-effective as optimizing the performance saturation setting.
* Dell Midrange Storage References:
* Dell PowerStore documentation provides detailed guidelines on performance optimization and high availability configurations.
* Community forums and support resources from Dell Technologies offer insights into best practices for sizing and redundancy.
References:
* Dell PowerStore Performance Guide
NEW QUESTION # 127
In a Dell Unity XT system, SSD wear alerts are issued at 180-, 90-, 60-, and 30-day periods before the predicted end of life. What is automatically initiated on the spare drive at 30 days?
- A. Preemptive Copy Operations
- B. Proactive Copy Operations
- C. Protective Copy Operations
- D. Predictive Copy Operations
Answer: B
Explanation:
* SSD Wear Alerts in Unity XT:
* Dell Unity XT systems monitor SSD wear and issue alerts at various intervals (180, 90, 60, and 30 days) before the predicted end of life.
* Action at 30 Days:
* At the 30-day alert, the system automatically initiates Proactive Copy Operations to copy data from the wearing SSD to a spare drive, ensuring data integrity and continuity.
* Proactive Copy Operations:
* This proactive measure helps prevent data loss and maintains system performance by preparing for SSD replacement in advance.
* Dell Midrange Storage References:
* Dell Unity XT documentation provides detailed guidelines on SSD wear monitoring and the associated proactive measures.
* Community forums and support resources from Dell Technologies offer additional insights into system maintenance and proactive data protection.
References:
* Dell Unity XT SSD Wear Guide
* Dell Community on Storage Maintenance
NEW QUESTION # 128
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