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Welcome to the Hadoop Libraries and Utilities MCQs Page

Dive deep into the fascinating world of Hadoop Libraries and Utilities with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Hadoop Libraries and Utilities, a crucial aspect of Hadoop. In this section, you will encounter a diverse range of MCQs that cover various aspects of Hadoop Libraries and Utilities, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Hadoop.

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Check out the MCQs below to embark on an enriching journey through Hadoop Libraries and Utilities. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Hadoop.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Hadoop Libraries and Utilities. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Hadoop Libraries and Utilities MCQs | Page 2 of 18

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Q11.
Nodes in the config _____________ must be completed successfully.

a.

oozie.wid.rerun.skip.nodes

b.

oozie.wf.rerun.skip.nodes

c.

oozie.wf.run.skip.nodes

d.

all of the mentioned

Discuss
Answer: (b).oozie.wf.rerun.skip.nodes
Q12.
_____________ will skip the nodes given in the config with the same exit transition as before.

a.

ActionMega handler

b.

Action handler

c.

Data handler

d.

None of the mentioned

Discuss
Answer: (b).Action handler
Q13.
________ nodes that control the start and end of the workflow and workflow job execution path.

a.

Action

b.

Control

c.

Data

d.

SubDomain

Discuss
Answer: (b).Control
Q14.
Node names and transitions must be conform to the following pattern =[a-zA-Z][\-_a-zA-Z0-0]*=, of up to __________ characters long.

a.

10

b.

15

c.

20

d.

25

Discuss
Answer: (c).20
Q15.
A workflow definition must have one ________ node.

a.

start

b.

resume

c.

finish

d.

none of the mentioned

Discuss
Answer: (a).start
Q16.
If one or more actions started by the workflow job are executing when the ________ node is reached, the actions will be killed.

a.

kill

b.

start

c.

end

d.

finsih

Discuss
Answer: (a).kill
Q17.
A ___________ node enables a workflow to make a selection on the execution path to follow.

a.

fork

b.

decision

c.

start

d.

none of the mentioned

Discuss
Answer: (b).decision
Q18.
Which of the following can be seen as a switch-case statement?

a.

fork

b.

decision

c.

start

d.

none of the mentioned

Discuss
Answer: (b).decision
Q19.
All decision nodes must have a _____________ element to avoid bringing the workflow into an error state if none of the predicates evaluates to true.

a.

name

b.

default

c.

server

d.

client

Discuss
Answer: (b).default
Q20.
The ___________ attribute in the join node is the name of the workflow join node.

a.

name

b.

to

c.

down

d.

none of the mentioned

Discuss
Answer: (a).name
Page 2 of 18

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