Apache Hadoop MCQ | ProgramsBuzz

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Which of the following has higher latency?

Explanation: Latency in MapReduce is high due to the disk-based I/O operations during processing.

Based on the different types of delays in reading/writing data from disk, which of the following scenarios would be the most suitable when working with Hadoop MapReduce?

Explanation: If a file is split across multiple blocks, then the seek time will increase as the head will have to change multiple times to reach the section where the data is stored. Therefore, a smaller number of blocks is preferred in MapReduce as the time to process the query will be lesser in this case.

Which of the following is not a challenge associated with ingesting unstructured data?

HDFS generally doesn't have storage issues due to its distributed nature.

State whether the following statement is true or false: The ‘distcp’ command is used for transferring datasets from one Hadoop cluster to another.

Which of the following commands is used for data ingestion tasks in Hadoop?

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Which of the following has higher latency?

Based on the different types of delays in reading/writing data from disk, which of the following scenarios would be the most suitable when working with Hadoop MapReduce?

Which of the following is not a challenge associated with ingesting unstructured data?

State whether the following statement is true or false: The ‘distcp’ command is used for transferring datasets from one Hadoop cluster to another.

Which of the following commands is used for data ingestion tasks in Hadoop?

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