Valid D-MSS-DS-23 Test Answers & EMC D-MSS-DS-23 Exam PDF
EMC D-MSS-DS-23 Certification Real 2025 Mock Exam
EMC D-MSS-DS-23 Exam Syllabus Topics:
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NEW QUESTION # 20
What is a Dell recommendation when connecting ESXi hosts to PowerStore?
- A. Configure Round Robin Multipathing with an IOPS limit of 1024.
- B. Configure a minimum of two NAS servers when using vVol Datastores.
- C. Use the default 32k host I/O size when using VMware NFS Datastores.
- D. Disable DelayedACK when configured using iSCSI.
Answer: D
Explanation:
Dell recommends disabling DelayedACK when configuring ESXi hosts using iSCSI to connect to PowerStore systems. DelayedACK can cause performance degradation and connectivity issues in iSCSI environments. By disabling DelayedACK, the communication between the ESXi host and the PowerStore array becomes more efficient, leading to better performance and reliability.
NEW QUESTION # 21
What is the purpose of the NVMe NVRAM drives in a Dell EMC PowerStore 1000 array?
- A. Write cache and base OS
- B. Read cache and vaulting
- C. Read cache and base OS
- D. Write cache and vaulting
Answer: D
Explanation:
The base enclosure is an all-NVMe platform, capable of supporting NVMe SSD, NVMe SCM, and NVMe NVRAM drives. You can populate slots 0 through 20 with NVMe SSD or NVMe SCM drives. Slots 21 through 24 are reserved for NVMe NVRAM drives which serve as additional system write caching. PowerStore 1000 and PowerStore 3000 models contain two NVMe NVRAM drives in slots 23 and 24. Reference: https://www.delltechnologies.com/asset/en- us/products/storage/industry-market/h18149-dell-emc-powerstore-platform-introduction.pdf
NEW QUESTION # 22
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 domain controller is checked
- B. Secmap is checked
- C. The Windows user access is removed
- D. The Windows user is mapped to the default UNIX account
Answer: A
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 # 23
What are the default DRR values in the PowerStore sizing tool for block and file workloads?
- A. Block = 4:1 File = 4:1
- B. Block = 2:1 File = 2:1
- 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 # 24
What is a Dell recommendation when connecting ESXi hosts to PowerStore?
- A. Use the default 8K host I/O size when using NFS
- B. Configure Round Robin Multipathing with an IOPS limit of 1024
- C. Configure a minimum of two NAS server when using vVol Datastores
- D. Enable Delayed ACK when configured using iSCSI
Answer: C
NEW QUESTION # 25
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: C
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 # 26
What are the default DRR values in the PowerStore sizing tool for block and file workloads?
- A. Block = 4:1 File = 4:1
- B. Block = 2:1 File = 2:1
- 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.
NEW QUESTION # 27
Which tool is used to remediate issues discovered during a site evaluation?
- A. CloudIQ
- B. Live Optics
- C. Grab
- D. ECT
Answer: D
Explanation:
The tool used to remediate issues discovered during a site evaluation is ECT (ESRS Configuration Tool).
ECT is a diagnostic and remediation tool provided by Dell that assists in configuring and troubleshooting ESRS (Secure Remote Services), which is essential for proactive monitoring and support of Dell EMC systems. ECT helps ensure that any identified issues during site evaluations are addressed effectively.
Reference:Dell ESRS Overview
NEW QUESTION # 28
A storage administrator wants to do a tech refresh from a legacy EQL system to a new Dell EMC SC Series array.
What is needed to correctly size the new array?
- A. Storage tiers
- B. Contract support end date
- C. Peak IOPS information
- D. Latency
Answer: D
NEW QUESTION # 29
Which parameters can be defined when sizing a Dell Unity XT solution using the Simple Performance method?
- A. Read size (KB) Target IOPS
- B. Application workload type Yearly growth rate (%)
- C. Write size (KB) Initial capacity (TB)
- D. Days hot Number of LUNs
Answer: A
Explanation:
When sizing a Dell Unity XT solution using the Simple Performance method, parameters such as Read size (KB) and Target IOPS can be defined. The Simple Performance method focuses on understanding the expected IOPS (Input/Output Operations Per Second) and read size to ensure that the system is sized appropriately to meet performance requirements. This approach helps in configuring the storage system to handle the expected workload efficiently.
NEW QUESTION # 30
What is recommended maximum cable length for PowerStore back-end NVMe cabling to avoid performance issues?
- A. 5 meters
- B. 3 meters
- C. 100 meters
- D. 10 meters
Answer: D
Explanation:
The recommended maximum cable length for PowerStore back-end NVMe cabling to avoid performance issues is 10 meters. This recommendation helps to ensure signal integrity and optimal performance across the NVMe interface, which is critical for maintaining the high throughput and low latency characteristics of NVMe storage.
NEW QUESTION # 31
How many hierarchical snapshots are supported by Dell EMC PowerStore 9000X array?
- A. 0 levels deep for LUNs
0 levels deep for file systems - B. 10 levels deep for LUNs
10 levels deep for file systems - C. 16 levels deep for LUNs
16 levels deep for file systems - D. 32 levels deep for LUNs
16 levels deep for file systems
Answer: B
NEW QUESTION # 32
Which NAS protocols does Dell PowerStore support?
- A. FTP, SMB, NFSv2, NFSv3, and FTPS
- B. NFSv4, SMB, S3, FTP, and SFTP
- C. SMB, NFSv3, NFSv4p, FTP, and SFTP
- D. FTPS, SMB, NFSv3, NFSv4, and FTP
Answer: C
Explanation:
Dell PowerStore supports a variety of NAS protocols to provide file access to clients.
These protocols include:
SMB (Server Message Block): This protocol is used to provide file and printer sharing on Windows-based systems.
NFSv3 (Network File System version 3): This is a standard protocol used to provide file access on UNIX-based systems.
NFSv4 (Network File System version 4): This is the latest version of the NFS protocol and it provides enhanced security and improved performance over previous versions. FTP (File Transfer Protocol): This is a standard protocol used to transfer files between computers over a network.
SFTP (Secure File Transfer Protocol): This is an extension of the FTP protocol that provides secure file transfer using SSH (Secure Shell) encryption.
NEW QUESTION # 33
Which network option should be configured to provide the best iSCSI performance on a Dell Unity XT array?
- A. Jumbo frames
- B. Disable flow control
- C. Single VLAN for all traffic
- D. iSCSI offload
Answer: A
Explanation:
For optimal iSCSI performance on a Dell Unity XT array, configuring jumbo frames is recommended. Jumbo frames allow for larger packets of data to be sent over the network, reducing the CPU load on both the storage array and the host, and improving overall throughput.
Configuring jumbo frames typically involves setting the MTU (Maximum Transmission Unit) to
9000 bytes on all network devices along the path.
NEW QUESTION # 34
What is a non-uniform distribution of I/O over storage capacity in Dell Unity XT Systems?
- A. Throughput
- B. Latency
- C. Skew
- D. Response time
Answer: C
NEW QUESTION # 35
Which drive type can be used in a FAST Cache pool configuration for Dell Unity XT solutions?
- A. SAS Flash 4
- B. SAS Flash 3
- C. SAS Flash 2
Answer: C
Explanation:
SAS Flash 2 drives can be used in a FAST Cache pool configuration for Dell Unity XT solutions.
FAST Cache (Fully Automated Storage Tiering Cache) allows frequently accessed data to be moved to high- performance SSDs, improving overall system performance. SAS Flash 2 drives are suitable for this purpose, providing a balance of performance, endurance, and cost.
NEW QUESTION # 36
Which two statements are correct for a PowerStore 5200T with mixed SSD and SCM drive combination? (Select 2)
- A. SCM drives do not add to usable capacity.
- B. SSD drives are used for metadata tiering.
- C. NVMe drives are not used for Caching and Vaulting.
- D. Expansion Enclosures are supported.
Answer: A,D
Explanation:
For a PowerStore 5200T system with a mixed SSD and SCM (Storage Class Memory) drive combination, the following statements are correct:
Expansion Enclosures are supported: PowerStore 5200T supports expansion enclosures, allowing for the addition of more drives to increase storage capacity and performance. This flexibility is crucial for scaling the storage system to meet growing data requirements.
SCM drives do not add to usable capacity: SCM drives in the PowerStore 5200T are primarily used for caching purposes rather than for adding to the system's usable capacity. These drives improve performance by accelerating data access times but do not contribute directly to the overall storage capacity.
NEW QUESTION # 37
Which two statements are correct in reference to an NVMe Expansion Enclosure attached to a PowerStore?
(Select 2)
- A. Supports the use of NVMe SCM Drives
- B. Slots for 25 2.5-inch NVMe drives
- C. Not supported on systems that include SAS expansion enclosures
- D. Requires v2 embedded module in base enclosure
Answer: C,D
Explanation:
ENS24 Expansion Enclosure is an NVMe expansion enclosure. - The ENS24 uses NVMe over Fabric (NVMe
/oF) standards. Delivers an end-to-end NVMe solution. - Slots for 24 2.5-inch, NVMe drives. - Performance equal to the local PCIe NVMe drives with a 10-microsecond delay. - Requires that the base enclosure includes the v2 embedded module and a 100 GbE 2-port card. - Not supported on systems that include SAS expansion enclosures. - Does not support NVMe SCM drives and is not supported with SCM-only base enclosures.
NEW QUESTION # 38
How many replication rules can be applied to a cluster in Dell EMC PowerStore?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 39
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D-MSS-DS-23 Exam Questions and Valid D-MSS-DS-23 Dumps PDF: https://actualtests.torrentexam.com/D-MSS-DS-23-exam-latest-torrent.html
