Welcome to the MapReduce Development and Features MCQs Page

Dive deep into the fascinating world of MapReduce Development and Features with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of MapReduce Development and Features, a crucial aspect of Hadoop. In this section, you will encounter a diverse range of MCQs that cover various aspects of MapReduce Development and Features, 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.

Check out the MCQs below to embark on an enriching journey through MapReduce Development and Features. 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 MapReduce Development and Features. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MapReduce Development and Features MCQs | Page 10 of 11

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Basics of Hadoop

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MapReduce Basics

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Hadoop Distributed File System

04

Hadoop IO

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06

Hive and HBase

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ZooKeeper,Sqoop and Cassandra

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Hadoop Incubators and Hadoop Development Tools

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Hadoop Frameworks

10

Hadoop Libraries and Utilities

Q91.

Point out the correct statement.

Hadoop does have the definition of group by itself

MapReduce JobHistory server run as same user such as mapred

SSO environment is managed using Kerberos with LDAP for Hadoop in secure mode

None of the mentioned

Discuss

Answer: (c).SSO environment is managed using Kerberos with LDAP for Hadoop in secure mode

Q92.

Point out the wrong statement.

Data transfer protocol of DataNode does not use the RPC framework of Hadoop

Apache Oozie which access the services of Hadoop on behalf of end users need to be able to impersonate end users

DataNode must authenticate itself by using privileged ports which are specified by dfs.datanode.address and dfs.datanode.http.address

None of the mentioned

Discuss

Answer: (d).None of the mentioned

Q93.

Point out the correct statement.

When there is enough space, block replicas are stored according to the storage type list

One_SSD is used for storing all replicas in SSD

Hot policy is useful only for single replica blocks

All of the mentioned

Discuss

Answer: (a).When there is enough space, block replicas are stored according to the storage type list

Q94.

Point out the wrong statement.

A Storage policy consists of the Policy ID

The storage policy can be specified using the “dfsadmin -setStoragePolicy” command

dfs.storage.policy.enabled is used for enabling/disabling the storage policy feature

None of the mentioned

Discuss

Answer: (d).None of the mentioned

Q95.

Point out the correct statement.

Mover is not similar to Balancer

hdfs dfsadmin -setStoragePolicy <path> <policyName> puts a storage policy to a file or a directory.

addCacheArchive add archives to be localized

none of the mentioned

Discuss

Answer: (c).addCacheArchive add archives to be localized

Q96.

Point out the wrong statement.

getInstance() creates a new Job with particular cluster

getInstance(Configuration conf) creates a new Job with no particular Cluster and a given Configuration

getInstance(JobStatus status, Configuration conf) creates a new Job with no particular Cluster and given Configuration and JobStatus

all of the mentioned

Discuss

Answer: (a).getInstance() creates a new Job with particular cluster

Q97.

Point out the correct statement.

YARN also extends the power of Hadoop to incumbent and new technologies found within the data center

YARN is the central point of investment for Hortonworks within the Apache community

YARN enhances a Hadoop compute cluster in many ways

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q98.

Point out the wrong statement.

From the system perspective, the ApplicationMaster runs as a normal container

The ResourceManager is the per-machine slave, which is responsible for launching the applications’ containers

The NodeManager is the per-machine slave, which is responsible for launching the applications’ containers, monitoring their resource usage

None of the mentioned

Discuss

Answer: (b).The ResourceManager is the per-machine slave, which is responsible for launching the applications’ containers

Q99.

Point out the correct statement.

Each queue has strict ACLs which controls which users can submit applications to individual queues

Hierarchy of queues is supported to ensure resources are shared among the sub-queues of an organization

Queues are allocated a fraction of the capacity of the grid in the sense that a certain capacity of resources will be at their disposal

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q100.

Point out the wrong statement.

The multiple of the queue capacity which can be configured to allow a single user to acquire more resources

Changing queue properties and adding new queues is very simple

Queues cannot be deleted, only addition of new queues is supported

None of the mentioned

Discuss

Answer: (d).None of the mentioned

Page 10 of 11

Welcome to the MapReduce Development and Features MCQs Page

MapReduce Development and Features MCQs | Page 10 of 11

Explore more Topics under Hadoop

Basics of Hadoop

MapReduce Basics

Hadoop Distributed File System

Hadoop IO

Introduction to Pig

Hive and HBase

ZooKeeper,Sqoop and Cassandra

Hadoop Incubators and Hadoop Development Tools

Hadoop Frameworks

Hadoop Libraries and Utilities

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