Hadoop Quiz
(Total Question : 30)
Q.1
Point out the wrong statement :
Q.2
What was Hadoop named after?
Q.3
All of the following accurately describe Hadoop, EXCEPT:
Q.4
________ is the most popular high-level Java API in Hadoop Ecosystem
Q.5
___________ is general-purpose computing model and runtime system for distributed data analytics.
Q.6
The output of the _______ is not sorted in the Mapreduce framework for Hadoop.
Q.7
Which of the following phases occur simultaneously ?
Q.8
The ________ option allows you to copy jars locally to the current working directory of tasks and automatically unjar the files.
Q.9
______________ class allows the Map/Reduce framework to partition the map outputs based on certain key fields, not the whole keys.
Q.10
Although the Hadoop framework is implemented in Java , MapReduce applications need not be written in :
Q.11
InputFormat class calls the ________ function and computes splits for each file and then sends them to the jobtracker.
Q.12
On a tasktracker, the map task passes the split to the createRecordReader() method on InputFormat to obtain a _________ for that split.
Q.13
_________ is a pluggable Map/Reduce scheduler for Hadoop which provides a way to share large clusters.
Q.14
Which of the following parameter describes destination directory which would contain the archive ?
Q.15
_________ identifies filesystem pathnames which work as usual with regular expressions.
Q.16
________ are a way of encoding structured data in an efficient yet extensible format.
Q.17
Thrift resolves possible conflicts through _________ of the field.
Q.18
________ instances are encoded using the number of bytes declared in the schema.
Q.19
________ permits data written by one system to be efficiently sorted by another system.
Q.20
Which of the following is the slowest compression technique ?
Q.21
Point out the wrong statement :
Q.22
Applications can use the ____________ to report progress and set application-level status messages
Q.23
The right level of parallelism for maps seems to be around _________ maps per-node
Q.24
Point out the wrong statement :
Q.25
__________ is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution.
Q.26
_________ method clears all keys from the configuration.
Q.27
Which of the following storage policy is used for both storage and compute ?
Q.28
Which of the following is only for storage with limited compute ?
Q.29
Which of the following method is used to get user-specified job name ?
Q.30
The __________ provides a proxy between the web applications exported by an application and an end user.