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I applied via Naukri.com and was interviewed before Mar 2023. There were 2 interview rounds.
Spark is a fast and general-purpose cluster computing system.
Spark is designed for speed and ease of use in data processing.
It can run programs up to 100x faster than Hadoop MapReduce.
Spark provides high-level APIs in Java, Scala, Python, and R.
It supports various workloads such as batch processing, interactive queries, streaming analytics, and machine learning.
Spark can be used standalone, on Mesos, or on Hadoop YARN
Hive is a data warehouse infrastructure built on top of Hadoop for providing data summarization, query, and analysis.
Hive uses a SQL-like language called HiveQL to query and manage large datasets stored in Hadoop
It allows users to write complex queries to analyze and process data
Hive organizes data into tables, partitions, and buckets for efficient querying
It is commonly used for data warehousing, data analysis, and da
There is no one-size-fits-all answer to which file format is best, as it depends on the specific use case and requirements.
Consider the type of data being stored or transmitted (e.g. text, images, videos, etc.)
Take into account compatibility with software and devices that will be used to access the files
Evaluate factors such as file size, compression, and quality requirements
Common file formats include PDF for document...
Designing ingestion pipeline involves defining data sources, data processing steps, data storage, and data delivery mechanisms.
Identify data sources such as databases, APIs, files, etc.
Define data processing steps like data extraction, transformation, and loading (ETL).
Choose appropriate data storage solutions like databases, data lakes, or data warehouses.
Implement data delivery mechanisms for downstream applications ...
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I applied via Recruitment Consultant and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed before Apr 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2020. There was 1 interview round.
Java is platform independent due to its bytecode and JVM.
Java code is compiled into bytecode which is platform-independent.
JVM (Java Virtual Machine) interprets the bytecode and executes it on any platform.
JVM acts as an abstraction layer between the Java code and the underlying hardware.
This allows Java programs to run on any platform that has a JVM installed.
For example, a Java program written on a Windows machine ca...
I applied via Recruitment Consultant and was interviewed before Oct 2020. There was 1 interview round.
I applied via Referral and was interviewed before Oct 2019. There was 1 interview round.
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