Big Data Developer

Big Data Developer Interview Questions and Answers

Updated 26 Jun 2024
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Q1. How much data can be processed in AWS Glue

Ans.

AWS Glue can process petabytes of data per hour

  • AWS Glue can process petabytes of data per hour, depending on the configuration and resources allocated

  • It is designed to scale horizontally to handle large volumes of data efficiently

  • AWS Glue can be used for ETL (Extract, Transform, Load) processes on massive datasets

Q2. What is distribution in spark ?

Ans.

Distribution in Spark refers to how data is divided across different nodes in a cluster for parallel processing.

  • Distribution in Spark determines how data is partitioned across different nodes in a cluster

  • It helps in achieving parallel processing by distributing the workload

  • Examples of distribution methods in Spark include hash partitioning and range partitioning

Big Data Developer Interview Questions and Answers for Freshers

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Q3. what is hadoop and hdfs

Ans.

Hadoop is an open-source framework for distributed storage and processing of large data sets, while HDFS is the Hadoop Distributed File System used for storing data across multiple machines.

  • Hadoop is designed to handle big data by distributing the data processing tasks across a cluster of computers.

  • HDFS is the primary storage system used by Hadoop, which breaks down large files into smaller blocks and distributes them across multiple nodes in a cluster.

  • HDFS provides high faul...read more

Q4. What is spark and pyspark

Ans.

Spark is a fast and general-purpose cluster computing system, while PySpark is the Python API for Spark.

  • Spark is a distributed computing system that provides an interface for programming entire clusters with implicit data parallelism and fault tolerance.

  • PySpark is the Python API for Spark that allows developers to write Spark applications using Python.

  • Spark and PySpark are commonly used for big data processing, machine learning, and real-time analytics.

  • Example: Using PySpark ...read more

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Q5. How spy-spark use

Ans.

Spy-Spark is a tool used for monitoring and debugging Apache Spark applications.

  • Spy-Spark is an open-source library that provides insights into the execution of Spark applications.

  • It allows developers to monitor the progress of Spark jobs, track resource utilization, and identify performance bottlenecks.

  • Spy-Spark can be used to collect detailed metrics about Spark applications, such as task execution times, data shuffling, and memory usage.

  • It provides a web-based user interfa...read more

Q6. Technology used in projects

Ans.

Various technologies like Hadoop, Spark, Kafka, and Python were used in projects.

  • Hadoop for distributed storage and processing

  • Spark for real-time data processing

  • Kafka for streaming data pipelines

  • Python for data analysis and machine learning

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