Dell EMC des-1b21 practice test

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

Question 2

Which command is used to update the here switch firmware?

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

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

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

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

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

Question 7

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

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

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

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

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

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

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

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

Question 15

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

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