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Big Data Simplified
book

Big Data Simplified

by Sayan Goswami, Amit Kumar Das, Sourabh Mukherjee
June 2019
Beginner to intermediate content levelBeginner to intermediate
360 pages
10h 55m
English
Pearson Education India
Content preview from Big Data Simplified
Introducing MapReduce | 95
7. Can the number of reducers be set to zero?
a. Yes
b. No
c. Not applicable
d. None of the above
8. Where is the Map Output (intermediate
key-value data) stored?
a. HDFS
b. Local File System
c. Name Node
d. Data Node
9. When does the Reduce start in a Map
Reduce?
a. Before any Map job starts
b. When first Map job is completed
c. When all the child Map job is completed
d. None of the above
Short-answer Type Questions (5 Marks Questions)
1. Name the most common input formats
defined in Hadoop. Which one is default?
2. Rearrange the main configuration param-
eters that the user need to specify to run
Mapreduce ...
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Publisher Resources

ISBN: 9789353941505