MapReduce Practice Test – Unlock it in 5 Minutes and 9 Seconds

Is it mandatory to set input and output type/format in Hadoop MapReduce?

HashPartitioner uses which method to determine, to which partition a given (key, value) pair will be sent

Which of the following permits to use multiple Mapper classes within a single Map task

Identity Reducer is the default Reducer provided by Hadoop

The parameters for Mappers are:

The parameters for Reducers are:

Hadoop framework invokes Splitting of the file by running which of the following method

For 514 MB file how many InputSplit will be created

Which among the following is used to provide multiple inputs to Hadoop?

Which statement is true about EditLogs

Identity Mapper is the default Mapper in Hadoop

Which among following class is responsible for converting inputs to key-value Pairs?

What is the most common OutputFormat in Hadoop

Is it mandatory to set input and output type/format in MapReduce?

Which of the following is used to set mappers for MapReduce jobs?

Which of the following is used set reducers for MapReduce jobs?

Which of the following is the correct sequence of MapReduce flow?

The process by which the system performs the sort and transfers the map outputs to the reducer as inputs is known as

Which of the following is used to make sure that all the value of a single key goes to the same reducer

Which of the following is the default Partitioner for partitioning keyspace.