
Apache Hadoop and Spark Quiz
Authored by Nadun Kumarasinghe
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11th Grade

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following components is NOT a part of the Apache Hadoop ecosystem?
Hive
Pig
ZooKeeper
HBase
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the default block size for HDFS in Apache Hadoop?
128 MB
64 MB
256 MB
512 MB
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a benefit of using Apache Spark over Hadoop MapReduce?
Lower cost
In-memory processing
More languages supported
Easier to install
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum item size in Amazon DynamoDB?
400 KB
1 MB
200 KB
2 MB
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Point out the correct statement.
Spark enables Apache Hive users to run their unmodified queries much faster.
Spark interoperates only with Hadoop.
Spark is a popular data warehouse solution running on top of Hadoop.
All of the above
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Match the correct description of Apache Spark components and features:
A feature where transformations in Spark are not evaluated until you trigger an action - Lazy execution
A program that declares the transformation and action on the data RDDs - Driver
An optimization framework allows Spark to automatically transform SQL queries by adding new optimizations to build a faster processing system - Catalyst framework
An operation used to re-distribute data across multiple partitions. It runs an operation on all elements of all partitions - Shuffle
Any node that runs the application code in the Spark cluster - Worker
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When you increase the number of files stored in HDFS, the memory required by NameNode:
Increases
Decreases
Remains unchanged
May increase or decrease
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