What do you understand by worker node?Spark Interview Questions for Freshers/Apache Spark Interview Questions and Answers for Freshers & Experienced

What do you understand by worker node?

Worker nodes are those nodes that run the Spark application in a cluster. The Spark driver program listens for the incoming connections and accepts them from the executors addresses them to the worker nodes for execution. A worker node is like a slave node where it gets the work from its master node and actually executes them. The worker nodes do data processing and report the resources used to the master. The master decides what amount of resources needs to be allocated and then based on their availability, the tasks are scheduled for the worker nodes by the master.

Posted Date:- 2021-10-22 04:01:04

What file systems does Spark support?

How can Apache Spark be used alongside Hadoop?

What is a Parquet file?

What do you understand by worker node?

Is there a module to implement SQL in Spark? How does it work?

How is machine learning implemented in Spark?

What is PageRank in GraphX?

Is there an API for implementing graphs in Spark?

How is Streaming implemented in Spark? Explain with examples.

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Name the components of Spark Ecosystem.

What do you understand by Transformations in Spark?

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EXPLAIN WHAT ACCUMULATORS ARE.

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What is YARN?

What are the languages supported by Apache Spark and which is the most popular one?

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Is it necessary to install spark on all the nodes of a YARN cluster when running Apache Spark on YARN ?

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What is DAG in Spark?

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How many types of Deploy mode are there in Spark?

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List some use cases where Spark outperforms Hadoop in processing.

What is Shark?

Explain how Spark runs applications with the help of its architecture.

What are the important components of the Spark ecosystem?

What is RDD?

What are the features of Apache Spark?

Can you tell me what is Apache Spark about?

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