Database - Big Data Systems

1. Consider the following statements:
Statement 1: The Job Tracker is hosted inside the master and it receives the job execution request from the client.
Statement 2: Task tracker is the MapReduce component on the slave machine as there are multiple slave machines.

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2. ____________ is the slave/worker node and holds the user data in the form of Data Blocks.

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3. ____________ function processes a key/vaue pair to generate a set of intermediate key/value pairs.

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4. True or False?
The main duties of task tracker are to break down the receive job that is big computations in small parts, allocate the partial computations that is task to the slave nodes monitoring the progress and report of task execution from the slave.

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5. Point out the correct statement in context of YARN:

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