Question

How are the output records of the Map function partitioned in MapReduce?

a.

Using a random partitioning technique

b.

Using a hash function

c.

Using a reduce function

d.

Using a split function

Posted under Big Data Computing

Answer: (b).Using a hash function Explanation:The output records of the Map function are partitioned using a hash function in MapReduce.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. How are the output records of the Map function partitioned in MapReduce?

Add Comment

Similar Questions

Discover Related MCQs

Q. What is the primary advantage of using MapReduce for massive data processing?

View solution

Q. What is the purpose of the MapReduce scheduler in a distributed processing framework?

View solution

Q. How many output files are typically produced by each Map function instance in MapReduce?

View solution

Q. What is the primary purpose of the Reduce phase in a MapReduce program?

View solution

Q. What determines which Reduce instance consumes output records with the same hash value from the Map phase?

View solution

Q. What is the purpose of the MapReduce main controller?

View solution

Q. What is the typical implementation of PageRank using MapReduce?

View solution

Q. What is one of the key advantages of MapReduce?

View solution

Q. How does the MapReduce program handle output records with the same hash value?

View solution

Q. What is the role of the control program in the implementation of PageRank using MapReduce?

View solution

Q. What characteristic of MapReduce contributes to its high fault tolerance?

View solution

Q. What is the typical number of Reduce instances in a MapReduce program?

View solution

Q. What is the primary function of the MapReduce scheduler?

View solution

Q. What are the two crucial aspects that enable parallel execution in database systems?

View solution

Q. What does the optimizer in a parallel DBMS translate SQL commands into?

View solution

Q. In a parallel DBMS, when does the filter subquery in a SQL command get performed in parallel?

View solution

Q. What is the final step required in a parallel DBMS after performing a hash join and calculating preliminary aggregate functions?

View solution

Q. Why is there a need for interfaces between MapReduce systems and DBMSs?

View solution

Q. What is the result of integrating MapReduce and DBMSs for complex analytical problems?

View solution

Q. What is the primary purpose of the MapReduce system in the context of interfacing with DBMSs?

View solution

View All MCQs on Big Data Computing

Suggested Topics

Are you eager to expand your knowledge beyond Big Data Computing? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

MySQL Database

Enhance your knowledge of relational databases with our MySQL MCQs. Understand...

Cryptography and Network Security

Secure your knowledge of information security with our Cryptography and Network...

Internet of Things (IoT)

Discover how devices communicate with each other in the smart world with our IoT...

Data Warehousing and OLAP

Strengthen your knowledge of Data Warehousing and OLAP with our specialized MCQs....

CompTIA PenTest+ Certification Exam PT0 002

Prepare for the CompTIA PenTest+ PT0-002 exam with our targeted MCQs. Covering...

Java Programming

Level up your coding skills with our Java Programming MCQs. From object-oriented...

JavaScript

Strengthen your web development skills with our JavaScript MCQs. Understand core...

Neural Networks

Dive into the world of Artificial Intelligence with our Neural Networks MCQs. Uncover...

Computer Graphics

Step into the visual side of computing with our Computer Graphics MCQs. Cover topics...