Hadoop Test

Partitioner controls the partitioning of what data?

INTERMEDIATE VALUES

INTERMEDIATE KEYS

FINAL KEYS

FINAL VALUES

SQL Windowing functions are implemented in Hive using which keywords?

OVER, RANK

UNION DISTINCT, RANK

UNION DISTINCT, EXCEPT

OVER, EXCEPT

Rather than adding a Secondary Sort to a slow Reduce job, it is Hadoop best practice to perform which optimization?

BREAK THE REDUCE JOB INTO MULTIPLE, CHAINED MAP JOBS.

ADD A PARTITIONED SHUFFLE TO THE REDUCE JOB.

BREAK THE REDUCE JOB INTO MULTIPLE, CHAINED REDUCE JOBS.

ADD A PARTITIONED SHUFFLE TO THE MAP JOB.

Hadoop Auth enforces authentication on protected resources. Once authentication has been established, it sets what type of authenticating cookie?

ENCRYPTED HTTP

COMPRESSED HTTP

UNSIGNED HTTP

SIGNED HTTP

MapReduce jobs can be written in which language?

PYTHON OR SQL

SQL OR JAVA

JAVA OR PYTHON

SQL ONLY

To perform local aggregation of the intermediate outputs, MapReduce users can optionally specify which object?

COMBINER

COUNTER

MAPPER

REDUCER

To verify job status, look for the value _ in the _.?

SUCCEEDED; SYSLOG

SUCCEEDED; STDOUT

DONE; SYSLOG

DONE; STDOUT

Which line of code implements a Reducer method in MapReduce 2.0?

PUBLIC STATIC VOID REDUCE(TEXT KEY, ITERATOR VALUES, CONTEXT CONTEXT){…}

PUBLIC VOID REDUCE(TEXT KEY, ITERATOR VALUES, CONTEXT CONTEXT){…}

PUBLIC VOID REDUCE(TEXT KEY, INTWRITABLE[] VALUES, CONTEXT CONTEXT){…}

PUBLIC STATIC VOID REDUCE(TEXT KEY, INTWRITABLE[] VALUES, CONTEXT CONTEXT){…}

To get the total number of mapped input records in a map job task, you should review the value of which counter?

FILEINPUTFORMATCOUNTER

JOBCOUNTER

TASKCOUNTER

FILESYSTEMCOUNTER

Hadoop Core supports which CAP capabilities? To reference a master file for lookups during Mapping, what type of cache should be used?

C, A

C, A, P

A, P

C, P

What are the primary phases of a Reducer?

REDUCE, SORT, AND COMBINE

MAP, SORT, AND COMBINE

SHUFFLE, SORT, AND REDUCE

COMBINE, MAP, AND REDUCE

To set up Hadoop workflow with synchronization of data between jobs that process tasks both on disk and in memory, use the _ service, which is _.?

ZOOKEEPER; OPEN SOURCE

OOZIE; COMMERCIAL SOFTWARE

ZOOKEEPER; COMMERCIAL SOFTWARE

OOZIE; OPEN SOURCE

For high availability, use multiple nodes of which type?

DATA

WORKER

MEMORY

NAME

DataNode supports which type of drives?

WARM SWAPPABLE

HOT SWAPPABLE

NON-SWAPPABLE

COLD SWAPPABLE

Which method is used to implement Spark jobs?

IN MEMORY OF THE MASTER NODE

IN MEMORY OF ALL WORKERS

ON DISK OF ALL WORKERS

ON DISK OF THE MASTER NODE

In a MapReduce job, where does the map() function run?

ON THE REDUCER NODES OF THE CLUSTER

ON THE DATA NODES OF THE CLUSTER

ON THE MASTER NODE OF THE CLUSTER

ON EVERY NODE OF THE CLUSTER

To reference a master file for lookups during Mapping, what type of cache should be used?

LOCAL CACHE

DISTRIBUTED CACHE

CLUSTER CACHE

PARTITIONED CACHE

SkipBadRecords provides an option where a certain set of bad input records can be skipped when processing what type of data?

REDUCER INPUTS

CACHE INPUTS

INTERMEDIATE VALUES

MAP INPUTS

To see how Hive executed a JOIN operation, use the _ statement and look for the _value.?

QUERY; JOIN OPERATOR

EXPLAIN; JOIN OPERATOR

QUERY; MAP JOIN OPERATOR

EXPLAIN; MAP JOIN OPERATOR

Hadoop systems are _____ RDBMS systems.?

REPLACEMENTS FOR

SUBSTITUTES FOR

NOT USED WITH

ADDITIONS TO

What kind of storage and processing does Hadoop support?

ENCRYPTED

DISTRIBUTED

VERIFIED

REMOTE

Which file system does Hadoop use for storage?

NAS

NFS

HDFS

FAT

Which feature is used to roll back a corrupted HDFS instance to a previously known good point in time?

REPLICATION

HIGH AVAILABILITY

SNAPSHOT

PARTITIONING

To implement high availability, how many instances of the master node should you configure?

SHARED

TWO OR MORE

ONE

ZERO

Which Hive query returns the first 1,000 values?

SELECT MAX 1000...

SELECT … WHERE VALUE=1000

SELECT TOP 1000...

SELECT … LIMIT 1000

What type of software is Hadoop Common?

PRODUCTIVITY TOOL

DATABASE

DISTRIBUTED COMPUTING FRAMEWORK

OPERATING SYSTEM

Hadoop 2.x and later implement which service as the resource coordinator?

KUBERNETES

JOBTRACKER

JOBMANAGER

YARN

HBase works with which type of schema enforcement?

NO SCHEMA

SCHEMA ON READ

SCHEMA ON WRITE

EXTERNAL SCHEMA

To connect Hadoop to AWS S3, which client should you use?

S3

S3A

THE EMR S3

S3N

_ is the query language, and _ is storage for NoSQL on Hadoop.?

HDFS; HQL

SQL; HBASE

HDFS; SQL

HQL; HBASE

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Exam Type:	Hadoop MCQ Skill Test
Questions Type:	Multiple Choice Questions
Total Questions:	30
Time Limit:	30 Minutes
Last Update	June, 2025

Pass Hadoop Exam

Hadoop Quiz

Partitioner controls the partitioning of what data?

SQL Windowing functions are implemented in Hive using which keywords?

Rather than adding a Secondary Sort to a slow Reduce job, it is Hadoop best practice to perform which optimization?

Hadoop Auth enforces authentication on protected resources. Once authentication has been established, it sets what type of authenticating cookie?

MapReduce jobs can be written in which language?

To perform local aggregation of the intermediate outputs, MapReduce users can optionally specify which object?

To verify job status, look for the value _ in the _.?

Which line of code implements a Reducer method in MapReduce 2.0?

To get the total number of mapped input records in a map job task, you should review the value of which counter?

Hadoop Core supports which CAP capabilities? To reference a master file for lookups during Mapping, what type of cache should be used?

What are the primary phases of a Reducer?

To set up Hadoop workflow with synchronization of data between jobs that process tasks both on disk and in memory, use the _ service, which is _.?

For high availability, use multiple nodes of which type?

DataNode supports which type of drives?

Which method is used to implement Spark jobs?

In a MapReduce job, where does the map() function run?

To reference a master file for lookups during Mapping, what type of cache should be used?

SkipBadRecords provides an option where a certain set of bad input records can be skipped when processing what type of data?

To see how Hive executed a JOIN operation, use the _ statement and look for the _value.?

Hadoop systems are _____ RDBMS systems.?

What kind of storage and processing does Hadoop support?

Which file system does Hadoop use for storage?

Which feature is used to roll back a corrupted HDFS instance to a previously known good point in time?

To implement high availability, how many instances of the master node should you configure?

Which Hive query returns the first 1,000 values?

What type of software is Hadoop Common?

Hadoop 2.x and later implement which service as the resource coordinator?

HBase works with which type of schema enforcement?

To connect Hadoop to AWS S3, which client should you use?

_ is the query language, and _ is storage for NoSQL on Hadoop.?

Hadoop Test Explained

Hadoop Test

Pass Hadoop Exam

Hadoop Quiz

Partitioner controls the partitioning of what data?

SQL Windowing functions are implemented in Hive using which keywords?

Rather than adding a Secondary Sort to a slow Reduce job, it is Hadoop best practice to perform which optimization?

Hadoop Auth enforces authentication on protected resources. Once authentication has been established, it sets what type of authenticating cookie?

MapReduce jobs can be written in which language?

To perform local aggregation of the intermediate outputs, MapReduce users can optionally specify which object?

To verify job status, look for the value _ in the _.?

Which line of code implements a Reducer method in MapReduce 2.0?

To get the total number of mapped input records in a map job task, you should review the value of which counter?

Hadoop Core supports which CAP capabilities? To reference a master file for lookups during Mapping, what type of cache should be used?

What are the primary phases of a Reducer?

To set up Hadoop workflow with synchronization of data between jobs that process tasks both on disk and in memory, use the _____ service, which is _____.?

For high availability, use multiple nodes of which type?

DataNode supports which type of drives?

Which method is used to implement Spark jobs?

In a MapReduce job, where does the map() function run?

To reference a master file for lookups during Mapping, what type of cache should be used?

SkipBadRecords provides an option where a certain set of bad input records can be skipped when processing what type of data?

To see how Hive executed a JOIN operation, use the _____ statement and look for the _____value.?

Hadoop systems are _____ RDBMS systems.?

What kind of storage and processing does Hadoop support?

Which file system does Hadoop use for storage?

Which feature is used to roll back a corrupted HDFS instance to a previously known good point in time?

To implement high availability, how many instances of the master node should you configure?

Which Hive query returns the first 1,000 values?

What type of software is Hadoop Common?

Hadoop 2.x and later implement which service as the resource coordinator?

HBase works with which type of schema enforcement?

To connect Hadoop to AWS S3, which client should you use?

_____ is the query language, and _____ is storage for NoSQL on Hadoop.?

Hadoop Test Explained

To set up Hadoop workflow with synchronization of data between jobs that process tasks both on disk and in memory, use the _ service, which is _.?

To see how Hive executed a JOIN operation, use the _ statement and look for the _value.?

_ is the query language, and _ is storage for NoSQL on Hadoop.?