- Hadoop Tutorial
- Hadoop - Home
- Hadoop - Big Data Overview
- Hadoop - Big Data Solutions
- Hadoop - Introduction
- Hadoop - Environment Setup
- Hadoop - HDFS Overview
- Hadoop - HDFS Operations
- Hadoop - Command Reference
- Hadoop - MapReduce
- Hadoop - Streaming
- Hadoop - Multi-Node Cluster
- Hadoop Useful Resources
- Hadoop - Questions and Answers
- Hadoop - Quick Guide
- Hadoop - Useful Resources
Hadoop Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Hadoop Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - As compared to RDBMS, Hadoop
A - Has higher data Integrity.
Answer : D
Q 2 - 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.
Answer : D
Q 3 - Which of this is not a scheduler options available with YARN?
Answer : A
Q 4 - The information mapping data blocks with their corresponding files is stored in
Answer : D
Q 5 - The output of a mapper task is
A - The Key-value pair of all the records of the dataset.
B - The Key-value pair of all the records from the input split processed by the mapper
Answer : B
Q 6 - The inter process communication between different nodes in Hadoop uses
Answer : B
Q 7 - The current limiting factor to the size of a hadoop cluster is
A - Excess heat generated in data center
B - Upper limit of the network bandwidth
Answer : C
Answer : A
Q 9 - How does Hadoop process large volumes of data?
A - Hadoop uses a lot of machines in parallel. This optimizes data processing.
C - Hadoop ships the code to the data instead of sending the data to the code.
D - Hadoop uses sophisticated caching techniques on name node to speed processing of data.
Answer : C
Q 10 - Which of the following is false about RawComparator ?
B - Performance can be improved in sort and suffle phase by using RawComparator.
C - Intermediary keys are deserialized to perform a comparison.