EMC DES-1D12テストエンジン練習テスト問題、試験問題集
100%無料DES-1D12日常練習試験には152問があります
質問 # 23
A storage administrator is deploying a new Dell Unity XT 880F system The system will be used over FC by several hosts running production databases The system will also be used over iSCSI to several hosts running tesVdev workloads The administrator wants to prevent the test/dev hosts from using more than 5000 IOPS What Unity XT feature can be used for this configuration?
- A. Thin clones
- B. Host I/O limits
- C. LUN masking
- D. FASTVP
正解：B
質問 # 24
A customer has two Dell S4148FON switches which are not connected to each other The customer wants to use SMB to present NAS data directly from the array to their users The solution must have resilience in case a switch outage occurs Which solution should the technical architect recommend?
- A. Dell PowerVault ME4
- B. Dell PowerStore 1000T
- C. Dell Unity XT 480
- D. Dell PowerStore100X
正解：A
解説：
Explanation
The Dell PowerVault ME4 is a storage area network (SAN) solution specifically designed for SMB environments. It provides high availability through active-active controllers and automatic failover, which ensures that data remains accessible in the event of a switch outage. By connecting the two S4148FON switches to the Dell PowerVault ME4, the customer will be able to present NAS data directly from the array to their users, and also have resilience in case of switch outage.
質問 # 25
At what granularity are blocks deduplicated on a Dell EMC PowerStore array?
- A. 64 KB
- B. 32 KB
- C. 8 KB
- D. 4 KB
正解：C
質問 # 26
An administrator wants to use NAS Server Mobility to move a NAS server from SPA to SPB on a Dell Unity system What consideration must they be aware of?
- A. The system must be in service mode to complete the move
- B. NAS Server Mobility is no longer supported following a software update
- C. DNS configuration will be lost after the move
- D. Any replication sessions must be in a paused state before starting the move
正解：B
質問 # 27
A customer wants to expand their Dell EMC Unity Hybrid system, which includes a pool of 64 drives in a RAID 5 (4+1) configuration. What is the minimum number of drives needed to expand the pool?
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
解説：
Explanation
DELL PDF document about dynamic pools: h16289-dell_emc_unity-dynamic_pools.pdf Page 20-21. The smallest RAID 5 stripe width the system supports is a 4+1. The smallest dynamic pool created with the RAID 5 4+1 configuration is 6 drives. The minimum drive count includes the number of drives specified in the stripe width, plus the hot spare capacity. The hot spare capacity is selected by the user at pool creation, and can either be set to 1 or 2 drives for every 32 drives in the pool.
質問 # 28
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. A hybrid solution using FAST VP and FAST Cache
- B. A hybrid solution using data progression
- C. A single-tier solution using 10k drives
- D. An All-Flash solution using FAST VP and FAST Cache
正解：D
解説：
Explanation
This solution combines the high performance of flash storage for frequently accessed data during month-end reporting with the lower cost of hard disk drives for infrequently accessed block data. FAST VP (Fully Automated Storage Tiering for Virtual Pools) allows for automatic data movement between different storage tiers, and FAST Cache provides additional performance optimization by caching hot data on flash storage
質問 # 29
A Dell PowerStore 9000X came online after being initially configured seven days ago.The manager Ul shows capacity but no forecasting metrics Why are forecasting metrics not being displayed?
- A. Forecasting was not turned onduringconfiguration
- B. The capacity forecasting license must be installed
- C. Forecasting will not display until 16 days after initial configuration
- D. There is not enough capacity in the appliance
正解：A
解説：
Explanation
Forecasting metrics are not being displayed because forecasting was not turned on during configuration.
Forecasting is an advanced feature that requires explicit activation during setup. If it's not enabled during the initial configuration, it will not be available later. It is not a license-related issue as the question does not mention any license related to it. The amount of capacity in the appliance does not affect the ability to display forecasting metrics. Forecasting metrics display after 7 days of initial configuration not 16.
質問 # 30
Which network option should be configured to provide the best iSCSI performance on a Dell Unity XT array?
- A. Single VLAN for all traffic
- B. A iSCSI offload
- C. Jumbo frames
- D. Disable flow control
正解：B
解説：
Explanation
iSCSI offload is a network option that can be configured to provide the best iSCSI performance on a Dell Unity XT array. This option offloads iSCSI processing to the network adapter card, reducing the load on the host CPU and improving performance. With iSCSI offload enabled, the network adapter card can handle iSCSI processing tasks such as packet segmentation and reassembly, reducing the CPU overhead associated with iSCSI operations. Other options such as using a single VLAN for all traffic, configuring jumbo frames and disabling flow control may also help to improve iSCSI performance but iSCSI offload would provide the best results. It is important to note that configuring jumbo frames could have a positive impact on performance, but it also depends on the network infrastructure and the NICs support for it. Disabling flow control could cause issues on congested networks, so it's important to test it before disabling it.
質問 # 31
What is a benefit of cross-platform replication between Dell EMC SC Series and Dell PS Series arrays?
- A. Supports cascade mode for the PS Group
- B. Leverages existing interfaces
- C. Enables replication of volume collections
- D. Provides active snapshot replication
正解：D
質問 # 32
A customer has implemented five new Dell PowerStore 1000T model arrays for remote office sites. The arrays are going to need more capacity than originally thought What NVRAM considerations must be evaluated before adding the new capacity?
- A. Use the Dell PowerStore Manager Ul to determine if more NVRAM is needed
- B. Use the DSA ordering system to determine if more NVRAM is supported for the PowerStore model
- C. The 1000T only supports two NVRAM modules
- D. Another NVRAM is only needed if adding an expansion shelf
正解：D
質問 # 33
A customer is managing a Dell EMC SC7020 array running SCOS 7.2. The array is running out of capacity.
The customer asks you to begin scoping the system for additional drives. What disk drive redundancy rule applies to 3.84 TB SSDs?
- A. Default Dual Redundancy
- B. Default Single Redundancy
- C. Forced Non-Redundancy
- D. Forced Dual Redundancy
正解：C
質問 # 34
The last two drive slots in a Dell EMC PowerStore 3000 are reserved for which type of drive?
- A. NVMe NVRAM
- B. SAS SSD
- C. NVMe SSD
- D. NVMe SCM
正解：A
解説：
Explanation/Reference: https://volumes.blog/2020/05/05/whats-is-powerstore-part-2-hardware/#:~:text=On%20the%
20PowerStore%201000%20and,(2)%20NVMe%20NVRAM%20devices.&text=PowerStore%20supports%
20four%20types%20of,in%20specific%20locations%20and%20enclosures
質問 # 35
How many hierarchical snapshots are supported by Dell EMC PowerStore 9000X array?
- A. 32 levels deep for LUNs
16 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. 0 levels deep for LUNs
0 levels deep for file systems
正解：B
質問 # 36
What is the minimum recommended amount of Flash capacity in a Dell EMC Unity 480 Hybrid pool?
- A. 10%
- B. 8%
- C. 5%
- D. 15%
正解：C
質問 # 37
Which SAS SSDs are supported by Dell EMC PowerStore?
- A. 960 GB, 1920 GB, 3840 GB, and 7680 GB
- B. 960 GB, 1920 GB, and 3840 GB only
- C. 1920 GB, 3840 GB, 7680 GB, and 15360 GB
- D. 1920 GB, 3840 GB, and 7680 GB only
正解：D
質問 # 38
What are the two biggest factors that determine IOPS when using SSDs in a Dell EMC SC Series array?
- A. Multi-tenant arrays and tier configuration
- B. Application block size and overall throughput
- C. Current latency and queue depth
- D. Read/write percentage and peak workload
正解：B
解説：
Reference:
https://downloads.dell.com/manuals/common/sc-series-performance-availability-best-practices-dell-emc-4024-bp-sc_en-us.pdf
質問 # 39
A customer has a fully scaled-out Dell PowerStore T cluster and wants to ensure that PowerStore Manager is in a highly available configuration How many instances of PowerStore Manager should be installed, and why?
- A. Two PowerStore Manager needs at least two instances for a highly available configuration
- B. Zero PowerStore Manager runs highly available by default
- C. Eight A customer should install one instance per node in the cluster
- D. Four A customer should install one instance per appliance in the cluster
正解：A
解説：
Explanation
A fully scaled-out Dell PowerStore T cluster requires at least two instances of PowerStore Manager to ensure high availability. This is because the PowerStore Manager provides a centralized management and monitoring interface for the cluster, and having multiple instances of it allows for redundancy in case one instance becomes unavailable.
質問 # 40
You are designing a Dell EMC PowerStore solution with a customer. They ask if they can populate Slots 0 to
10 with NVMe SSD drives.
What should be your response?
- A. Any drive type can be populated in the remaining slots
- B. NVMe SSDs must be populated in the remaining empty slots
- C. NVMe SCM drives must be populated in the remaining empty slots
- D. NVMe SCM drives are required in Slots 0 through 10
正解：B
質問 # 41
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