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Welcome to the Hadoop IO MCQs Page

Dive deep into the fascinating world of Hadoop IO with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Hadoop IO, a crucial aspect of Hadoop. In this section, you will encounter a diverse range of MCQs that cover various aspects of Hadoop IO, 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 IO. 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 IO. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Hadoop IO MCQs | Page 4 of 6

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Q31.
Which of the following works well with Avro?

a.

Lucene

b.

kafka

c.

MapReduce

d.

None of the mentioned

Discuss
Answer: (c).MapReduce
Q32.
__________ tools is used to generate proxy objects in Java to easily work with the objects.

a.

Lucene

b.

kafka

c.

MapReduce

d.

Avro

Discuss
Answer: (d).Avro
Q33.
Avro schemas are defined with _____

a.

JSON

b.

XML

c.

JAVA

d.

All of the mentioned

Discuss
Answer: (a).JSON
Q34.
__________ facilitates construction of generic data-processing systems and languages.

a.

Untagged data

b.

Dynamic typing

c.

No manually-assigned field IDs

d.

All of the mentioned

Discuss
Answer: (b).Dynamic typing
Q35.
With ______ we can store data and read it easily with various programming languages.

a.

Thrift

b.

Protocol Buffers

c.

Avro

d.

None of the mentioned

Discuss
Answer: (c).Avro
Q36.
________ are a way of encoding structured data in an efficient yet extensible format.

a.

Thrift

b.

Protocol Buffers

c.

Avro

d.

None of the mentioned

Discuss
Answer: (b).Protocol Buffers
Q37.
Thrift resolves possible conflicts through _________ of the field.

a.

Name

b.

Static number

c.

UID

d.

None of the mentioned

Discuss
Answer: (b).Static number
Q38.
Avro is said to be the future _______ layer of Hadoop.

a.

RMC

b.

RPC

c.

RDC

d.

All of the mentioned

Discuss
Answer: (b).RPC
Q39.
When using reflection to automatically build our schemas without code generation, we need to configure Avro using?

a.

AvroJob.Reflect(jConf);

b.

AvroJob.setReflect(jConf);

c.

Job.setReflect(jConf);

d.

None of the mentioned

Discuss
Answer: (c).Job.setReflect(jConf);
Q40.
We can declare the schema of our data either in a ______ file.

a.

JSON

b.

XML

c.

SQL

d.

R

Discuss
Answer: (c).SQL
Page 4 of 6

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