EMC D-UN-DY-23練習テストPDF試験材料
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質問 # 94
What is the maximum time difference allowed between the current system time (UTC) and the NTP server time during the initial configuration of a Dell Unity system?
- A. 17 min
- B. 7 min
- C. 5 min
- D. 15 min
正解：C
質問 # 95
What types of file retention are available with the Dell EMC Unity XT family arrays?
- A. Integrated and Centralized
- B. Enterprise and Compliance
- C. Professional and Enterprise editions
- D. Community and Professional editions
正解：B
質問 # 96
Which storage objects support Advanced Deduplication?
- A. VMFS datastores and Vols
- B. vols and Thick LUNs
- C. Thin LUNs and thick LUNs
- D. Thin LUNs and thin VMFS datastores
正解：D
質問 # 97
In Unisphere, a storage administrator has inadvertently disabled Data Reduction on an existing LUN.
What would result from this action?
- A. Existing data is dynamically inflated to its full size, undoing the impact of deduplication and compression. New data is neither deduplicated nor compressed.
- B. A background LUN migration occurs, moving the data to a new LUN where it is inflated. New data is neither deduplicated nor compressed.
- C. Data Reduction, once enabled, cannot be disabled. New data is deduplicated or compressed.
- D. Existing data is left in its current state. New data is neither deduplicated nor compressed.
正解：D
質問 # 98
Which FAST Cache operation proactively copies dirty pages to underlying hard disk drives?
- A. FAST Cache cleaning
- B. FAST Cache promotion
- C. FAST Cache warming
- D. FAST Cache flushing
正解：D
質問 # 99
What is required to customize access to NFS shares?
- A. Port Information
- B. Network Address
- C. Netgroup Name
- D. Subnet Name
正解：B
質問 # 100
What is the sequence of steps that must be executed to implement IP Multi-tenancy in a Unity system?
- A. Associate tenants with existing NAS servers Create file systems and shares for each tenant Configure host access for the tenant's shares
- B. Create a NAS server tor each tenant Create file systems and shares for each tenant Add tenants and associate to the NAS servers
- C. Add tenants to the Unity system Create a NAS server for each tenant Create file systems and shares for each tenant
- D. Create file systems and shares for each tenant Configure host access for the tenant's shares Add tenants to the Unity System
正解：C
質問 # 101
A storage administrator needs to connect a new iSCSI host to a Dell EMC Unity XT array.
Which I/O modules support host iSCSI connectivity?
- A. 16 Gb/s FC and 25 GbE optical
- B. 10 GbE Base-T and 25 GbE optical
- C. 10 GbE Base-T only
- D. 25 GbE optical only
正解：B
質問 # 102
Which VVol object stores .vmx files, logs, and NVRAM?
- A. Swap
- B. Memory
- C. Config
- D. Data
正解：C
質問 # 103
What are the supported options for the Professional Edition of the Dell EMC UnityVSA?
- A. 10 TB, 25 TB, and 50 TB
- B. 10 TB, 30 TB, and 50 TB
- C. 4TB, 10 TB, and 50 TB
- D. 4 TB, 25 TB, and 50 TB
正解：A
質問 # 104
What is used by the File Import data mobility feature?
- A. SANCopy push
- B. Transparent Data Transfer
- C. Inband Migration Tool
- D. Common base Snapshots
正解：C
質問 # 105
What are two best practices when configuring host to storage connectivity? (Select 2)
- A. ISCSI should use all HBA or all NIC connections, with no mixing in a host.
- B. Use multipathing software to manage the paths to the storage system.
- C. Hosts with CNAs should use both FC and iSCSI to connect to a single array.
- D. Any single host should connect to any single array with FC protocol and iSCSI protocol.
正解：A、B
質問 # 106
What is the correct sequence of steps to create a replication session on an existing LUN?
- A. Start the Configure Replication wizard.
Choose the destination.
Choose the replication mode.
Select the Replication tab from the LUN Properties page. - B. Select the Replication tab from the LUN Properties page.
Start the Configure Replication wizard.
Choose the destination.
Choose the replication mode. - C. Start the Configure Replication wizard.
Choose the replication mode.
Select the Replication tab from the LUN Properties page.
Choose the destination. - D. Choose the destination.
Start the Configure Replication wizard.
Select the Replication tab from the LUN Properties page.
Choose the replication mode.
正解：B
質問 # 107
A system administrator plans to shut down a Unity storage system for routine maintenance.
What should be done to prevent data loss before shutting down the storage system?
- A. Toggle both Storage Processors into Service mode
- B. Manually disable Die storage system write cache
- C. Detach all active snapshots from hosts
- D. Disconnect provisioned storage from hosts
正解：A
質問 # 108
Which type of drives are part of the Performance Tier in a heterogeneous pool in Unity?
- A. SAS
- B. SAS Flash 2
- C. SAS Flash 4
- D. NL-SAS
正解：C
質問 # 109
In an asynchronous replication, what is the maximum number of replicated NAS servers supported for the Dell Unity XT 380 series? (changed)
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 110
A test NFS server running a stress test program consumes nearly all file system space. This causes performance slowdowns on production hosts sharing the same file system.
Which Dell EMC Unity XT feature could the storage administrator use to prevent a re-occurrence of this problem?
- A. File System Quotas
- B. Host I/O Limits
- C. Data Reduction
- D. FAST Cache
正解：A
質問 # 111
What is used to create a Proxy NAS Server on a Dell EMC Unity array?
- A. Unisphere GUI
- B. Service command
- C. initCLI command
- D. UEMCLI command
正解：D
質問 # 112
Drag chart question
正解：
解説：
質問 # 113
Two fans have failed on the SPE.
How much time does the Dell EMC Unity system allow before the SP is shut down?
- A. 4 min
- B. 2 min
- C. 3 min
- D. 5 min
正解：D
質問 # 114
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