Dell EMC des-1b21 practice test

Implementation Engineer, Elastic Cloud Storage (ECS) Exam

Last exam update: May 13 ,2024
Page 1 out of 4. Viewing questions 1-15 out of 66

Question 1

In the Storage Service Layer, which distributed shard service runs on each ECS node to mange
transactions and ensure data is committed?

  • A. Unstructured Storage Engine
  • B. Server-side encryption
  • C. Erasure coding
  • D. ECS meta-data management
Answer:

A

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Question 2

Which command is used to update the here switch firmware?

  • A. updateArista
  • B. flashboot
  • C. firmwaredownload
  • D. update firmware
Answer:

C

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Question 3

A company has removed the VDC from the replication group and is no longer able to add it back.
What is the cause of this issue?

  • A. The same cannot be added back to the replication group; it must be given another name
  • B. The VDC cannot be added back to the existing replication group: a new replication group must be created for the VDC
  • C. The same VDC can be added back to the replication group; but only before failover processing is completed successfully
  • D. Removing the VDC from the replication group initiates failover processing for permanent failures
Answer:

A

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Question 4

You are configuring an ECS system to be used for private cloud storage in a Data Domain Cloud Tier
environment. You want to enable higher storage efficiency for archival data in the storage pool to
support the backup solution.

  • A. 8 nodes per storage pool Cold Storage pool
  • B. 4 nodes per storage pool Federated VDC
  • D. 8 nodes per storage pool Dedicated namespace
  • E. 4 nodes per storage Global replication group
Answer:

E

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Question 5

Which port needs to be opened between ECS and ESRS for registration of remote support?

  • A. 21
  • B. 3218
  • C. 9020
  • D. 9443
Answer:

D

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Question 6

What is a correct statement concerning the use of ECS as an LTR solution with DD Cloud Tier?

  • A. There can be up to four cloud units that make up the cloud tier
  • B. Backups are cloned to the cloud tier via the app-based policy
  • C. Mission critical applications are backed up first to the DD cloud tier
  • D. Data is moved directly from the active to ECS
Answer:

A

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Question 7

DRAG DROP
What is the correct order of steps used to create a VDC federation?

Answer:

Explanation:
Reference: https://www.emc.com/collateral/TechnicalDocument/docu88135.pdf (36)

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Question 8

An ECS is configured as backend storage for OpenStack Glance. Which type of data will it store?

  • A. OpenStack Swift client access information
  • B. Disk and server images
  • D. Volume data backups
  • E. Multimedia files
Answer:

B

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Question 9

When planning for a multi-site ECS installation, what is the maximum network latency between
sites?

  • A. 100 ms
  • B. 500 ms
  • C. 1, 000 ms
  • D. 5, 000 ms
Answer:

D

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Question 10

A storage administrator asks you if ECS requires the use of file gateways for Hadoop dat
a. What should be your response?

  • A. Yes; ECS comes with a file gateway that automatically moves the data to the ECS
  • B. Yes; ECS acts as a file gateway
  • C. No; ECS has a built-in tool to move data into HDFS
  • D. No; ECS does not require file gateways
Answer:

B

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Question 11

A newly configured ECS system contains 8 nodes. How many fragments will each ECS node contain
when a data chunk is broken up by erasure coding?

  • A. 2
  • B. 4
  • C. 8
  • D. 16
Answer:

D

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Question 12

How do ECS object users authenticate to the ECS OpenStack Swift Service when running the Version 1
protocol?

  • A. PEA file
  • B. Login and password
  • C. Scoped token
  • D. Simple token
Answer:

D

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Question 13

Which user role has access to all areas of the ECS portal?

  • A. System Administrator
  • B. Namespace Administrator
  • C. Tenant Administrator
  • D. Power user
Answer:

C

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Question 14

How are files locked by ECS with NFSv3 enabled?

  • A. ECS runs pNFS as does any NFSv4 server
  • B. ECS globally locks files from any node at any site
  • C. The NFSv3 clients do file locking
  • D. ECS runs NLM as does any NFSv3 server
Answer:

C

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Question 15

By default, which file contains ECS information for configuring ESRS?

  • A. provision.txt
  • B. topology.txt
  • C. customer.json
  • D. MACHINES
Answer:

A

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