BDA Quiz on HADOOP

1. The main role of the secondary namenode is to

• A - Copy the filesystem metadata from primary namenode.

• B - Copy the filesystem metadata from NFS stored by primary namenode

• C - Monitor if the primary namenode is up and running.

• D - Periodically merge the namespace image with the edit log

2. Which technology is used to import and export data in Hadoop?

• A - HBase

• B - Avro

• C - Sqoop

• D - Zookeeper

3. What license is Hadoop distributed under?

• a) Apache License 2.0

• b) Mozilla Public License

• c) Shareware

• d) Commercial

4.  What was Hadoop written in?

• a) Java (software platform)

• b) Perl

• c) Java (programming language)

• d) Lua (programming language)

5. What does commodity Hardware in Hadoop world mean?

• Very cheap hardware

• Industry standard hardware

• Discarded hardware

• Low specifications Industry grade hardware

6. Pig is a:

• Programming Language

• Data Flow Language

• Query Language

• Database

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

• MapReduce, Hive and HBase

• MapReduce, MySQL and Google Apps

• MapReduce, Hummer and Iguana

• MapReduce, Heron and Trumpet

8. Which of the following is component of Hadoop?

• YARN

• HDFS

• MapReduce

• All of the above

9. What is the full form of YARN?

• A. Yet Another Resource Network

• B. Yet Another Relational Negotiator

• C. Yet Another Resource Negotiator

• D. Yet Another Relational Network

10. Point out the correct statement.

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

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

• C. YARN enhances a Hadoop compute cluster in many ways

• D. All of the above