EMC Exam 2024 D-MSS-DS-23 Dumps Updated Questions UPDATED Nov-2024
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NEW QUESTION # 124
How should Dell Unity XT storage pools be configured to minimize the chance of running out of space due to snapshot utilization?
- A. Change the number of days in the local retention policy
- B. Set high and low watermarks to remove old snapshots
- C. Change the frequency period on the snapshot schedule
- D. Set retention to a particular date and time
Answer: B
Explanation:
Dell Unity XT storage pools can be configured to minimize the chance of running out of space due to snapshot utilization by setting high and low watermarks to remove old snapshots. A high watermark is set to specify the maximum amount of space that can be consumed by snapshots before the oldest snapshots are automatically removed. This is a good way to ensure that snapshots do not consume all available space, and helps to prevent the pool from running out of space.
NEW QUESTION # 125
What are the default DRR values in the PowerStore sizing tool for block and file workloads?
- A. Block = 2:1 File = 2:1
- B. Block = 4:1 File = 4:1
- C. Block = 4:1 File = 2:1
- D. Block = 1:1 File = 1:1
Answer: C
Explanation:
In the PowerStore sizing tool, the default Data Reduction Ratio (DRR) values for block and file workloads are Block = 4:1 and File = 2:1. These values represent the expected reduction in data size due to compression and deduplication, which helps in planning the storage capacity and performance requirements effectively.
Reference:Dell PowerStore Sizing Tool Documentation
NEW QUESTION # 126
What initiates an automatic NAS server failover to the peer SP?
- A. Resource balancing algorithm
- B. SP hardware fault
- C. Network link failure
- D. Assisted internal migration
Answer: B
Explanation:
An automatic NAS server failover to the peer Storage Processor (SP) is initiated by an SP hardware fault. This failover mechanism ensures high availability and continuous access to data by moving the NAS server's operations to the functioning SP when a hardware fault is detected in the primary SP.
NEW QUESTION # 127
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. Dedicated spares are not required
- B. 1 spare per drive type per shell
- C. 2 spare drives per shell
- D. 2 spares per drive type per array
Answer: A
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 # 128
What is the minimum recommended amount of Flash capacity in a Dell EMC Unity 480 Hybrid pool?
- A. 5%
- B. 8%
- C. 15%
- D. 10%
Answer: A
Explanation:
The minimum recommended Flash capacity is at least 5% of the pool capacity.
Reference: https://www.dell.com/support/kbdoc/en-pk/000010691/dell-emc-unity-difference- between-fast-cache-and-fast-vp-configurations-user-correctable
NEW QUESTION # 129
What benefit do higher capacity drives provide in a Dell Unity All Flash array?
- A. Larger I/O size
- B. Efficient utilization of front end ports
- C. Less physical space is used
Answer: C
Explanation:
Higher capacity drives in a Dell Unity All Flash array provide the benefit of using less physical space. This is particularly advantageous in data centers where space is at a premium. By utilizing higher capacity drives, more storage capacity can be achieved within the same physical footprint, leading to greater efficiency and potential cost savings. Here's why higher capacity drives are beneficial:
* Space Efficiency:Higher capacity drives allow for more data to be stored in fewer drives, conserving rack space.
* Cost Savings:Fewer drives can reduce power and cooling requirements, leading to operational cost savings.
* Scalability:Higher capacity drives enable easier scalability as storage needs grow, without requiring additional physical space.
References:
* Dell Technologies Unity All Flash Array Benefits
* Dell Entry-Level and Mid-Range Storage Community
NEW QUESTION # 130
Which Dell PowerStore supported media devices carry a FIPS Type D certification?
- A. SAS HDD. NVMe SSD NVMe SCM, and SAS SSD
- B. SAS SCM NVMe SSD and NVRAM
- C. SAS SSD NVMe SSD NVMe SCM, and NVRAM
- D. NVMe SCM NVMe SSD, and SAS SSD
Answer: D
Explanation:
The Dell PowerStore supports a variety of media devices, including NVMe SCM, NVMe SSD, SAS SSD, SAS HDD, and NVRAM. Of these, NVMe SCM, NVMe SSD, and SAS SSD carry a FIPS Type D certification. This certification is a Federal Information Processing Standards (FIPS) certification that indicates that the device has passed a set of security standards established by the US government for use in sensitive, but unclassified data.
NEW QUESTION # 131
A technical architect is designing a Dell Unity storage solution. The customer has a monthly data access profile where block data is accessed infrequently. The data is accessed frequently for a few days during month-end reporting.
Based on best practices which solution should the technical architect recommend?
- A. An All-Flash solution using FAST VP and FAST Cache
- B. A single-tier solution using 10k drives
- C. A hybrid solution using data progression
- D. A hybrid solution using FAST VP and FAST Cache
Answer: D
Explanation:
Based on the customer's monthly data access profile, where block data is accessed infrequently but frequently during month-end reporting, the technical architect should recommend a hybrid solution using FAST VP and FAST Cache. FAST VP (Fully Automated Storage Tiering for Virtual Pools) is a feature that automatically tiers data across different types of storage media based on access patterns. With FAST VP, frequently accessed data will be automatically moved to faster storage media such as flash, while infrequently accessed data will be moved to slower, less expensive storage media such as disk. FAST Cache is a feature that increases the performance of Unity storage systems by caching frequently accessed data on flash storage. With this hybrid solution, the customer will have the best of both worlds:
high-performance flash storage for frequently accessed data, and lower-cost disk storage for infrequently accessed data. This will help the customer to improve performance during month-end reporting and save costs for infrequently accessed data. It's important to note that this design should be evaluated based on the specific requirements, workloads and expected growth of the customer.
NEW QUESTION # 132
Which path of the sizer tool for Dell Unity XT uses predefined configurations that are based on array model, capacity points, random workloads, RAID type, and drive type?
- A. System Designer
- B. Advanced Performance
- C. Quick Configuration
- D. Simple Performance
Answer: C
Explanation:
* Sizer Tool Paths:
* The Dell Unity XT sizer tool offers multiple paths for configuring storage solutions, each tailored to different user needs and expertise levels.
* Quick Configuration:
* The Quick Configuration path uses predefined configurations based on array model, capacity points, random workloads, RAID type, and drive type.
* This path simplifies the sizing process by providing users with recommended configurations that align with common use cases and performance requirements.
* Other Paths:
* Advanced Performance: Allows for detailed customization of performance parameters.
* Simple Performance: Focuses on basic performance metrics without predefined configurations.
* System Designer: Provides comprehensive design options for complex scenarios.
* Dell Midrange Storage References:
* Dell Unity XT documentation provides detailed guidelines on using the sizer tool and the different configuration paths available.
* Additional resources from Dell Technologies' support and community forums offer insights into best practices for using the sizer tool.
References:
* Dell Unity XT Sizer Tool Guide
* Dell Community on Storage Sizing
NEW QUESTION # 133
A customer must provision file systems on a Dell Unity XT 480F for a test environment A dynamic pool will be configured with RAID 5......
What is the minimum drive count necessary to create to create this pool?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 134
Which describes the Dell Unity XT MetroSync replication topology?
- A. A source block resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to Site C
- B. A source block resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
- C. A source file resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to SiteC
- D. A source file resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
Answer: C
Explanation:
Dell Unity XT MetroSync replication topology is a multi-site replication solution that allows you to replicate data synchronously between two or more Unity XT systems. In this topology, a source file resource is replicated synchronously from Site A to Site B, and also replicated synchronously from Site A to Site C; This means that data is written to the primary site and immediately replicated to the secondary site, ensuring that both sites have an exact copy of the data at all times. This type of topology is useful in cases where data loss is not acceptable and a zero RPO is needed. This topology ensures that the data is fully protected and that the environment is highly available, as in case of a primary site failure, the secondary site can take over.
NEW QUESTION # 135
While sizing a PowerStore solution with 5 TB usable capacity and 5000 IOPS for a Test/Development Application using NVMe drives, a solution architect observes that the recommended solution is 10 times the requested capacity. What action must the architect take?
- A. Configure the Unity solution as an alternative.
- B. Change the DRE Tolerance Parity in System Editor.
- C. Change the DRR of the solution.
Answer: C
Explanation:
* Understanding DRR (Data Reduction Ratio):
* The Data Reduction Ratio (DRR) is a measure used in storage solutions to determine the efficiency of data reduction technologies such as deduplication and compression.
* In NVMe-based systems like PowerStore, achieving an optimal DRR is crucial for balancing capacity and performance.
* Sizing PowerStore Solutions:
* When sizing a PowerStore solution, it's essential to align the provided capacity and performance (IOPS) with the customer's requirements.
* If the recommended solution vastly exceeds the requested capacity (10 times more in this case), it indicates an overly conservative DRR assumption.
* Recommended Action:
* The architect should adjust the DRR to reflect a more accurate estimate that aligns with the customer's actual data reduction potential.
* This adjustment ensures that the solution is cost-effective and meets the performance criteria without excessive over-provisioning.
* Dell Midrange Storage References:
* Dell Technologies documentation on PowerStore solutions provides detailed guidelines on DRR configurations and best practices.
* Resources include sizing tools, system editor settings, and real-world case studies that illustrate appropriate DRR adjustments.
References:
* Dell PowerStore Overview
* Dell Community on Midrange Storage
* Dell Storage Product Information
NEW QUESTION # 136
Which option should the technical architect recommend?
- A. 25 GbE is not supported on Dell Unity or Dell Unity XT systems.
- B. The Dell Unity XT 480 supports a 25 GbE card, but the Dell Unity 550F does not support a 25 GbE card.
- C. The Dell Unity 550F supports a 25 GbE card, but the Dell Unity XT 480 does not support a 25 GbE card.
- D. All Dell Unity and Dell Unity XT systems support 25 GbE.
Answer: B
NEW QUESTION # 137
A Windows client using the SMB protocol is trying to access a multiprotocol file system from a Dell Unity XT NAS server. The local group database was checked and no mapping was found.
What is the next step in the SID to UID resolution process?
- A. The Windows user access is removed
- B. Secmap is checked
- C. The domain controller is checked
- D. The Windows user is mapped to the default UNIX account
Answer: C
Explanation:
When a Windows client uses the SMB protocol to access a multiprotocol file system from a Dell Unity XT NAS server, the SID (Security Identifier) of the Windows user is mapped to a UID (User Identifier) on the UNIX file system. If no mapping is found in the local group database, the domain controller is checked to see if the SID is present there.
The domain controller can provide the information needed to map the SID to the corresponding UID on the file system, allowing the Windows user to access the files. If the SID is not present in the domain controller, the Windows user's access would be removed.
NEW QUESTION # 138
Which options are valid Mezzanine card choices on a Dell PowerStore in a multi-appliance cluster?
- A. 4-port 16 Gb FC card or 4-port 32 Gb FC card
- B. Mixed 2-port 25 GbE SFP and 2-port 10GBaseT card
- C. Mixed 2-port 32 Gb FC and 2-port 25 GbE card
- D. 4-port 25 GbE SFP-based card or 4-port 10GBaseT card
Answer: D
NEW QUESTION # 139
What tools can be used to migrate block data from a legacy VNX array to a new Dell Unity XT array?
- A. EMCopy and SANCopy
- B. SANCopy and PowerPath Migration Enabler
- C. PowerPath Migration Enabler and Rsync
- D. Rsync and EMCopy
Answer: B
NEW QUESTION # 140
What is the maximum number of thin clones per base LUN within Dell Unity XT?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
The maximum number of thin clones per base LUN within Dell Unity XT is 32. Thin clones are efficient copies of a LUN (Logical Unit Number) that share the same underlying storage blocks, allowing for quick and space-saving creation of additional LUNs based on the same data. Reference:Dell Unity XT Thin Cloning Guide
NEW QUESTION # 141
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