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Dell E20-393 Exam Practice Questions (P. 4)

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Question #16
When deploying virtual disks for a UnityVSA system, what is an EMC recommended Disk Provision Policy?
  1. A
    Thick Provision Eager Zeroed
  2. B
    Thin Provision
  3. C
    Thick Provision
  4. D
    Thick Provision Lazy Zeroed

Correct Answer:
A
EMC recommends the following settings for all virtual disks:
✑ Disk Provisioning: Thick Provision Eager Zeroed.
✑ Location: A different datastore than the VM.

Question #17
Which UnityVSA user interface allows advanced users to create scripts for automating routine tasks?
  1. A
    Unisphere Central
  2. B
    UEMCLI
  3. C
    SP Console
  4. D
    Unisphere GUI

Correct Answer:
B
Unisphere Command Line Interface (UEMCLI) is an interface that allows a user to perform tasks on the storage system by typing commands instead of using the graphical user interface.
Note: Representational State Transfer (REST) is a management API that allows clients to interact with UnityVSA using standard HTTP mechanisms and semantics. Operations that can be performed in Unisphere or UEMCLI can also be performed using REST API.
Application developers can access REST API with any programming or scripting language capable of making HTTP requests, without requiring a separate client.

Question #18
A system administrator has configured a system using the Initial Configuration wizard. After completing the wizard, the administrator discovers that an incorrect
IP address has been assigned to the Unity system.
How can the IP address be changed?
  1. A
    The IP address cannot be changed once it has been configured
  2. B
    Through the Service interface using the ifconfig command
  3. C
    In the Unisphere Settings menu
  4. D
    The IP address can only be changed using the UEMCLI

Correct Answer:
D
The svc_initial_config UEMCLI command sets up initial system configuration. It configures a management IP address when the Connection Utility (CU) is not available on the network. If an address is set, this command can also change the management IPv4 and IPv6 configuration mode. It attempts to configure the system with the given friendly name and/or network parameters.
Note: The Unisphere CLI (UEMCLI) is a tool that provides us with the CLI access to perform the same actions as one would on the Unisphere web interface.
References:
https://www.emc.com/collateral/TechnicalDocument/docu69328.pdf
(page 60)

Question #19
Which FAST Cache operation can be performed from the Settings window?
  1. A
    Disable FAST Cache use on a specific pool
  2. B
    Pause FAST Cache use
  3. C
    Expand FAST Cache
  4. D
    Enable FAST Cache use on a specific pool

Correct Answer:
A

Question #20
Which Unity service task is used to reinstall the root operating system while leaving the user's data intact?
  1. A
    Restore the Management server
  2. B
    Reimage the Storage Processor
  3. C
    Restore the Management software
  4. D
    Reinitialize the storage system

Correct Answer:
B
Re-image a storage processor (SP) to safely fix problems with the system software that could not be resolved by rebooting the SP. Re-imaging analyzes the system software for errors and attempts to correct them instantly. Re-image an SP from the Service System page.
Your configuration settings and stored files will not be changed.
References:
https://community.emc.com/docs/DOC-40315

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