Best Practices and Optimization of Hadoop MCQ question and answer with solution

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Each section contains 100 MCQs on Best Practices and Optimization of Hadoop .

What is the purpose of the Hadoop Distributed Cache?

A) To cache frequently used HDFS data B) To cache frequently used MapReduce code C) To cache frequently used input data D) To cache intermediate MapReduce results

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

How can you optimize Hadoop job performance when working with small files?

A) Use Hadoop Archive (HAR) files B) Increase the block size of HDFS C) Decrease the replication factor of small files D) Merge small files into larger ones

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the role of the Hadoop Fair Scheduler in a multi-user environment?

A) Ensures fair distribution of resources B) Prioritizes tasks based on input size C) Allocates resources based on task complexity D) Randomly assigns resources to tasks

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How can Hadoop Namenode High Availability (HA) be achieved?

A) By configuring multiple active Namenodes B) By using backup Namenodes C) By replicating the Namenode metadata D) By compressing Namenode data

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the Hadoop Shuffle Handler in MapReduce?

A) Manages the shuffling of data between map and reduce tasks B) Handles data replication in HDFS C) Coordinates task execution in a Hadoop job D) Optimizes task scheduling in Hadoop

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Apache . . . . . . . . is a project that enables development and consumption of REST style web services.

A) Wives B) Wink C) Wig D) All of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

. . . . . . . . is a framework for building Java Server application GUIs.

A) Myfaces B) Muse C) Flume D) BigTop

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

. . . . . . . . is the subset of the replicas list that is currently alive and caught up to the leader.

A) replicas B) leader C) follower D) isr

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Impala on Amazon EMR requires . . . . . . . . running Hadoop 2.x or greater.

A) AMS B) AMI C) AWR D) All of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following companies shipped Impala?

A) Amazon B) Oracle C) MapR D) All of the mentioned

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Best Practices and Optimization of Hadoop MCQ question and answer with solution | Hadoop MCQs