最新のE20-393合格保証付き試験問題集の認定サンプル問題 [Q118-Q134]

最新のE20-393合格保証付き試験問題集の認定サンプル問題

最新E20-393テスト材料には有効なE20-393テストエンジン

EMC E20-393 認定試験の出題範囲：

トピック	出題範囲
トピック 1	スナップショットのデータ保護機能とスナップショットの作成方法を説明する DellEMCUnityVSAシステムを導入および初期化する方法を説明する
トピック 2	SMBおよびNFSファイルストレージリソースへのNASクライアントアクセスを構成する方法を説明する DellEMC Unity XTハードウェアコンポーネントを特定する：DPE、SPE、DAE、拡張モジュール
トピック 3	ストレージリソースでスナップショット操作がどのように実行されるかを説明する DellEMCUnityVSAソフトウェア定義のストレージソリューションを説明する
トピック 4	ホストI Oパフォーマンス機能の性質と使用法を説明する DellEMC UnityXTおよびUnityVSAシステム管理
トピック 5	ストレージリソースの同期および非同期レプリケーション操作について説明する DellEMC UnityXTおよびUnityVSAのインストールとサービス

質問 118
Which system level alert indicates an error has occurred that has no impact on the system and should be
remedied in the near future?

A. Informational
B. Error
C. Notice
D. Warning

正解: B

解説:
Explanation
References: https://www.emc.com/collateral/white-papers/h15085-dell-emc-unity-unisphere-overview.pdf
(23)

質問 119
Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?

A. Add vDisks to the storage appliance
B. Create an ESXi host profile
C. Install license keys for thin provisioning
D. License the system for NFS and SMB support

正解: A

解説:
Explanation/Reference:
UNITY VSA STORAGE POOL CREATION
1. Under the Storage Pool Section go to Pools. Select the + to start the "Create Pool Wizard".
2. Name the Pool
3. Assign a Tier to each Virtual Disk attached to the VSA. You have Extreme, Performance and Capacity.

Etc.
References: https://samshouseblog.com/2016/06/08/unity-vsa-storage-pool-creation/

質問 120
A system administrator wants to configure asynchronous replication on their Unity system. What is required before creating a replication session?

A. An IP-based replication interface on the same network as the destination system's replication interfaced configured replication connection between the remote systems
B. A Sync Replication Management Port configured on each system. An IP-based replication interface on the same network as the destination system's interfaced configured replication connection between the remote systems.
C. AFibre Channel connection configured between the remote systems. A configured replication connection between the remote systems.
D. aSync Replication Management Port configured on each system. A Fibre Channel connection configured between the remote systems. A configured replication connection between the remote systems.

正解: D

質問 121
What is the correct sequence of steps required to deploy a Dell EMC UnityVSA?

正解:

解説:

質問 122
Which Unity mode(s) supports the 17 Gb/s SAS I/O modulo?

A. Unity 400. Unity 500, and Unity 600
B. Unity 500 and Unity 600 only
C. All Unity models
D. Unity 600 only

正解: B

質問 123
Which FAST VP operation can be performed from the System Settings window?

A. Manually start data relocation
B. Modify data relocation schedule
C. Cancel data relocation operations
D. Delete snapshots from the tier

正解: B

質問 124
A storage administrator wants to create a series of daily snapshots for an existing critical LUN. How can the snapshots be created?

A. From the LUN Properties page, configure the Snapshot schedule
B. Snapshot schedules can only be configured within the LUN Creation wizard
C. Only manually taken snapshots are supported on existing LUNs
D. From the Pool Properties page, configure the Snapshot schedule

正解: D

解説:
Explanation
In addition to being created ahead of time on the Snapshot Schedules page, new snapshots schedules may also be created during the process of creating a new storage resource from within the creation wizard as an alternative to selecting an existing schedule.

質問 125
On which systems is Quality of Service available?

A. Physical Unity and UnityVSA systems
B. UnityVSA systems only
C. Physical Unity systems only
D. All Flash Unity systems only

正解: A

解説:
Explanation/Reference:
UnitVSA features Host I/O limits, also known as Quality of service.
The EMC [Physical] Unity array comes with a pack of new hardware and software features focusing on the true unification:
Support for setting up Host I/O limits, also known as QOS, providing a more predictable performance

for the workloads by putting limits on I/O throughputs and bandwidth
DPE reduced from a 7U footprint to an innovative 2U footprint

12 GB SAS back-end for the Unity DAEs; EMC VNX/VNXe supported only 6 GB SAS backend

Completely redesigned user interface based on HTML5

References: https://www.emc.com/collateral/white-papers/h15092-emc-unity-unity-vsa.pdf (page 16)
http://www.presidio.com/blog/technical-summary-emc-unification-unity

質問 126
What is the maximum storage capacity supported by a Dell EMC UnityVSA with the Community Edition subscription?

A. 25 TB
B. 4 TB
C. 10 TB
D. 50 TB

正解: B

解説:
Explanation
Explanation/Reference:
Reference http://cloudmaniac.net/dell-emc-unityvsa-free-storage-lab/

質問 127
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. Disconnect provisioned storage from hosts.
C. Manually disable the storage system write cache
D. Detach all active snapshots from hosts.

正解: B

解説:
Explanation
Explanation/Reference:
References: https://www.emc.com/collateral/TechnicalDocument/docu69355.pdf (3)

質問 128
What describes multiple LUN snapshots?

A. Captures multiple point-in-time data states. Snapshot data state is marked "unmodified'' from its source when attached. Snapshot tree supports only one attach at a time
B. Captures multiple point-in-time data sates. Snapshot data state is marked "modified" from its source when attached Snapshot tree supports only one attach at a time
C. Captures multiple point-in-time data states. Snapshot data state is marked "modified" from its source when attached. Snapshot tree supports multiple simultaneous attaches.
D. Captures multiple point-in-time data states. Snapshot data state is marked "unmodified'' from its source when attached. Snapshot tree supports multiple simultaneous attaches

正解: C

質問 129
A system administrator has added a new Unity storage array to their environment. The administrator wants to migrate block data from vVNX running in their VMware environment to a UnityVSA. In addition, the administrator needs to migrate the block data from an older CLARiiON storage array to the new Unity storage array.
Which single block migration option will work for both the virtual and hardware storage devices?

A. RecoverPoint
B. Host-Based LVM
C. SAN Copy Push
D. VPLEX

正解: C

解説:
You move Block storage from a CLARiiON CX or VNX Series storage system to an EMC Unity system.
Note: Clariion (styled CLARiiON) is a discontinued [1] SAN disk array manufactured and sold by EMC Corporation, it occupied the entry-level and mid-range of EMC's SAN disk array products. In 2011, EMC introduced the EMC VNX Series, designed to replace both the Clariion and Celerra products.
Incorrect Answers:
D: EMC RecoverPoint protects storage arrays LUNs and provides concurrent local and multiple remote data replication copies with continuous data protection for any PiT Recovery. It supports EMC VMAX 10K, 20K, 40K, VNX, VNXe3200, VNX-F, VPLEX, XtremIO and 3rd party arrays via VPLEX.

質問 130
A file system is 1 TB in size and contains 250 GB of data. The file system is not fully allocated and only 450 GB of pool storage is in use. The user wants to reduce the file system to 300 GB.
How much space is returned to the storage pool?

A. 450 GB
B. 700 GB
C. 750 GB
D. 150 GB

正解: D

質問 131
Which step must be completed prior to performing the initial configuration of a UnityVSA system and creating the first storage pool?

A. Add vDisks to the storage appliance
B. Create an ESXi host profile
C. Install license keys for thin provisioning
D. License the system for NFS and SMB support

正解: A

解説:
UNITY VSA STORAGE POOL CREATION
1. Under the Storage Pool Section go to Pools. Select the + to start the "Create Pool Wizard".
2. Name the Pool
3. Assign a Tier to each Virtual Disk attached to the VSA. You have Extreme, Performance and Capacity.

Etc.
References: https://samshouseblog.com/2016/06/08/unity-vsa-storage-pool-creation/

質問 132
A storage administrator is monitoring the pool Capacity of two identical Dell EMC Unity XT systems. Each system has every LUN replicated to the other system and all replication sessions are in sync. Both systems are used for production storage. CloudIQ is receiving updates from both systems, but shows that one of them is filling up more quickly than the other.
What is a possible explanation for this behavior?

A. One of the Unity XT systems is used less than the other one.
B. Dell EMC Unity Data Reduction is not identically enabled on LUNs on both systems.
C. Dell EMC Unity Data Reduction license is not enabled on one of the two systems.
D. CloudIQ is not receiving the same amount of updates from one of the two systems.

正解: B

質問 133
A user is setting up Dell EMC Unity network ports for connectivity between the NAS clients and NAS Servers. In Unisphere, what can a user modify under the Access section of the Settings configuration window?