Comparison table between Hadoop and Spark: FeatureHadoopSparkCore ComponentsHDFS (Hadoop Distributed File System): A distributed storage system for storing large datasets.MapReduce: A computational model for parallel data processing, operating in a series of map and reduce steps.RDD (Resilient Distributed Datasets): A fault-tolerant collection of elements distributed across a cluster.Spark Core: The core processing engine that provides... Continue Reading →
Data Analytics Interviews: What to Expect and How to Prepare
If youโre searching for a data analytics job, what can you expect when it comes to interviews? What can you do to prepare? The first thing to know is that every company has a slightly different โ or very different โ process. But there are some commonalities you can expect. Rounds of Data Analytics Interviews... Continue Reading →
Azure Data Engineer Journey Learning links
Start your Azure journey here.....1. Azure Data Factory.https://lnkd.in/gEmpbyrMProject: https://lnkd.in/gFG2aCgy2. Azure Data bricks.https://lnkd.in/gvFwKxaNproject: https://lnkd.in/gFG2aCgy3. Azure Stream Analytics.https://lnkd.in/g35VbSTv4. Azure Synapse Analytics.https://lnkd.in/gCufskNC5. Azure Data Lake Storage.https://lnkd.in/gcEKjWsc6. Azure SQL database.https://lnkd.in/gmHxqxQX7. Azure Postgres SQL database.https://lnkd.in/grHWJvWZ8. Azure MariaDB.https://lnkd.in/gYSp7MZi9. Azure Cosmos DB.https://lnkd.in/g6jPZA36This is an excellent guide to become azure data engineer. No need to become expert. but learn how to work with... Continue Reading →
List of All azure / data / devops /ML Interview Q& A
1. ๐๐๐๐ฟ๐ฒ ๐๐ฎ๐๐ฎ ๐๐ฎ๐ฐ๐๐ผ๐ฟ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dVzCmzcZ2. ๐๐๐๐ฟ๐ฒ ๐๐ฎ๐๐ฎ๐ฏ๐ฟ๐ถ๐ฐ๐ธ๐ ๐ฆ๐ฐ๐ฒ๐ป๐ฎ๐ฟ๐ถ๐ผ ๐ฏ๐ฎ๐๐ฒ๐ฑ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dUCf8qf8๐ฏ. ๐ฅ๐ฒ๐ฎ๐น๐๐ถ๐บ๐ฒ ๐๐๐๐ฟ๐ฒ ๐๐ฎ๐๐ฎ ๐๐ฎ๐ฐ๐๐ผ๐ฟ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/ex_Vixh๐ฐ.๐๐ฎ๐๐ฒ๐๐ ๐๐๐๐ฟ๐ฒ ๐๐ฒ๐๐ข๐ฝ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/g7PdATm๐ฑ. ๐๐๐๐ฟ๐ฒ ๐๐ฐ๐๐ถ๐๐ฒ ๐๐ถ๐ฟ๐ฒ๐ฐ๐๐ผ๐ฟ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dtWYXTKN๐ฒ. ๐๐๐๐ฟ๐ฒ ๐๐ฎ๐๐ฎ ๐๐ฎ๐ธ๐ฒ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dgr-uGQB๐ณ. ๐๐๐๐ฟ๐ฒ ๐๐ฝ๐ฝ ๐ฆ๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dP4Afqkb๐ด. ๐๐๐๐ฟ๐ฒ ๐๐ฎ๐๐ฎ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dj_m2yeQ๐ต. ๐๐๐๐ฟ๐ฒ ๐๐ผ๐ด๐ถ๐ฐ ๐๐ฝ๐ฝ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dDtnJe4v๐ญ๐ฌ. ๐๐๐๐ฟ๐ฒ ๐๐๐ป๐ฐ๐๐ถ๐ผ๐ป๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐ ๐ค&๐https://lnkd.in/dRWp3HZX๐ญ๐ญ. ๐๐๐๐ฟ๐ฒ ๐ฆ๐๐ป๐ฎ๐ฝ๐๐ฒ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐... Continue Reading →
30 PySpark Scenario-Based Interview Questions for Experienced
PySpark is a powerful framework for distributed data processing and analysis. If you're an experienced PySpark developer preparing for a job interview, it's essential to be ready for scenario-based questions that test your practical knowledge. In this article, we present 30 scenario-based interview questions along with their solutions to help you confidently tackle your next... Continue Reading →
500+ Data Engineering Interview questions & Answers
1. What is Hadoop MapReduce? A.) For processing large datasets in parallel across hadoop cluster, hadoop mapReduce framework is used. 2. What are the difference between relational database and HDFS? There are 6 major categories we can define RDMBS and HDFS. They areData TypesprocessingSchema on read Vs WriteRead/write speed cost Best fit use case RDBMSHDFS1. ... Continue Reading →
Pyspark Scenarios
Check out these 23 complete PySpark real-time scenario videos covering everything from partitioning data by month and year to handling complex JSON files and implementing multiprocessing in Azure Databricks. โ Pyspark Scenarios 1: How to create partition by month and year in pyspark https://lnkd.in/dFfxYR_F โ pyspark scenarios 2 : how to read variable number of... Continue Reading →
Data Scientist Roadmap
How I would relearn Data Science In 2024 to get a job: Getting Started: โฌ๏ธ - ๏ Data Science Intro: DataCamp- ๏ฆ Anaconda Setup: Anaconda Documentation Programming: - ๏ Python Basics: Real Python- ๏ R Basics: R-bloggers- ๏ป SQL Fundamentals: SQLZoo- ๏ง๏ป Java for Data Science: Udemy - Java Programming and Software Engineering Fundamentals Mathematics:... Continue Reading →
Azure and Databricks Prep
๐๐๐ญ๐๐๐ซ๐ข๐๐ค๐ฌ ๐๐ง๐ ๐๐ฒ๐๐ฉ๐๐ซ๐ค ๐๐ซ๐ ๐ญ๐ก๐ ๐ฆ๐จ๐ฌ๐ญ ๐ข๐ฆ๐ฉ๐จ๐ซ๐ญ๐๐ง๐ญ ๐ฌ๐ค๐ข๐ฅ๐ฅ๐ฌ ๐ข๐ง ๐๐๐ญ๐ ๐๐ง๐ ๐ข๐ง๐๐๐ซ๐ข๐ง๐ . ๐๐ฅ๐ฆ๐จ๐ฌ๐ญ ๐๐ฅ๐ฅ ๐๐จ๐ฆ๐ฉ๐๐ง๐ข๐๐ฌ ๐๐ซ๐ ๐ฆ๐จ๐ฏ๐ข๐ง๐ ๐๐ซ๐จ๐ฆ ๐๐๐๐จ๐จ๐ฉ ๐ญ๐จ ๐๐ฉ๐๐๐ก๐ ๐๐ฉ๐๐ซ๐ค. ๐ ๐ก๐๐ฏ๐ ๐๐จ๐ฏ๐๐ซ๐๐ ๐๐ฅ๐ฆ๐จ๐ฌ๐ญ ๐๐ฏ๐๐ซ๐ฒ๐ญ๐ก๐ข๐ง๐ ๐ข๐ง ๐ฆ๐ฒ ๐ ๐ซ๐๐ ๐๐จ๐ฎ๐๐ฎ๐๐ ๐ฉ๐ฅ๐๐ฒ๐ฅ๐ข๐ฌ๐ญ. ๐๐ก๐๐ซ๐ ๐๐ซ๐ 70 ๐ฏ๐ข๐๐๐จ๐ฌ ๐๐ฏ๐๐ข๐ฅ๐๐๐ฅ๐ ๐๐จ๐ซ ๐๐ซ๐๐.0. Introduction to How to setup Account 1. How to read CSV file in PySpark 2. How to... Continue Reading →
Partition Scenario with Pyspark
๐how to create partitions based on year and month ?Data partitioning is critical to data processing performance especially for large volume of data processing in spark.Most of the traditional databases will be having default date format DD-MM-YYYY.But cloud storage (spark delta lake/databricks tables) will be using YYYY-MM-DD format.So here we will be see how to... Continue Reading →
CODEBOX 