Hadoop Mock Test 1 - Sanfoundry

10%

Question 1 of 10

1. Point out the wrong statement.

NoSQL systems do provide high latency access and accommodate less concurrent users

Isilon native HDFS integration means you can avoid the need to invest in a separate Hadoop infrastructure

None of the mentioned

EMC Isilon Scale-out Storage Solutions for Hadoop combine a powerful yet simple and highly efficient storage platform

Question 1 of 10

Question 2 of 10

2. Interface ____________ reduces a set of intermediate values which share a key to a smaller set of values.

Readable

Writable

Reducer

Mapper

Question 2 of 10

Question 3 of 10

3. What license is Hadoop distributed under?

Mozilla Public License

Shareware

Apache License 2.0

Commercial

Question 3 of 10

Question 4 of 10

4. Which of the following class provides a subset of features provided by the Unix/GNU Sort?

KeyFieldBasedComparator

All of the mentioned

KeyFieldBased

KeyFieldComparator

Question 4 of 10

Question 5 of 10

5. What was Hadoop written in?

Java (programming language)

Java (software platform)

Perl

Lua (programming language)

Question 5 of 10

Question 6 of 10

6. Point out the wrong statement.

To use Aggregate, simply specify "-mapper aggregate"

Hadoop has a library package called Aggregate

None of the mentioned

Aggregate allows you to define a mapper plugin class that is expected to generate "aggregatable items" for each input key/value pair of the mappers

Question 6 of 10

Question 7 of 10

7. Hadoop is a framework that works with a variety of related tools. Common cohorts include ____________

MapReduce, Hive and HBase

MapReduce, Heron and Trumpet

MapReduce, MySQL and Google Apps

MapReduce, Hummer and Iguana

Question 7 of 10

Question 8 of 10

8. The output of the reduce task is typically written to the FileSystem via ____________

InputCollector

OutputCollect

All of the mentioned

OutputCollector

Question 8 of 10

Question 9 of 10

9. ________ is the most popular high-level Java API in Hadoop Ecosystem

Scalding

Cascalog

HCatalog

Cascading

Question 9 of 10

Question 10 of 10

10. Hadoop data is not sequenced and is in 64MB to 256MB block sizes of delimited record values with schema applied on read based on ____________

Hbase

Hive

All of the mentioned

HCatalog

Question 10 of 10