What is Python? What is Databricks? What is cluster in databricks? What is PySpark? What is Azure Data Factory (ADF)? What PySpark is used for? What is a Spark DataFrame? What triggers execution in PySpark? What is lazy evaluation? Difference between transformation and action? What is a Spark cluster? PySpark vs Pandas? What is SparkSession? What is an action in PySpark? Which format is commonly used with PySpark? What does collect() do? Is PySpark suitable for small datasets? Why do we use PySpark in Databricks? What happens if no cluster is attached to a notebook? Where is data stored in Databricks? What is Delta Lake? What is auto-scaling in Databricks? What is a Databricks notebook? What happens when you run df.show()? What is a job in Databricks? What is Azure Data Factory’s role with Databricks? Can SQL and PySpark be used together in Databricks? Is Databricks compute permanent? What is an all-purpose cluster in Databricks? What is a job cluster in Databricks? What is an activity in Databricks or ADF? What is a pipeline in Databricks or ADF? How do you run PySpark code in Databricks? What is a notebook in Databricks? What is the difference between a transformation and an action in PySpark? What is the difference between collect() and show()? What is auto-termination in Databricks clusters? What is PySpark SQL? What is a temporary view in Databricks? Can you mix PySpark and SQL in Databricks? What is the difference between persistent and temporary tables? How is PySpark better than traditional Python for big data? What is a notebook cell in Databricks? What is a driver node? What is a worker node? How do you read data in PySpark? How do you write data in PySpark? How do you create a temporary view? What is count() in PySpark? How is Databricks integrated with Azure Data Factory (ADF)? What is SparkContext? What is partitioning in PySpark? Why is partitioning important? What is shuffling in PySpark? Why should collect() be used carefully? Difference between narrow and wide transformations? What is caching/persisting in PySpark? What is a Spark job? What is a stage in Spark? What is a task in Spark? Can you schedule jobs in Databricks? How do you debug PySpark code in Databricks? What is a cluster log in Databricks? How is PySpark better than pandas? What file formats does Databricks support? Can you integrate Databricks with BI tools? What is the difference between Databricks and traditional Spark? What is a broadcast variable in PySpark? What is an accumulator in PySpark? Difference between repartition() and coalesce()? What is a wide transformation? What is a narrow transformation? What is the difference between persist() and cache()? How do you read streaming data in PySpark? What is Structured Streaming? What is the difference between write and writeStream? How do you handle skewed data in PySpark? What is Databricks Delta Live Tables (DLT)? What is a Databricks workspace? How do you schedule jobs in Databricks? How can you share data between notebooks? What is MLflow in Databricks? What is a cluster policy in Databricks? How does Databricks handle version control? What is a secret scope in Databricks?? How do you monitor cluster performance? What is a Databricks job cluster vs interactive cluster? How do you handle missing data in PySpark? How do you remove duplicates in PySpark? How do you add a new column in PySpark? How do you rename a column? How do you improve PySpark job performance? What is the purpose of checkpointing? What is the difference between map and flatMap? How do you monitor Spark jobs in Databricks? What is Tungsten in Spark? What is Catalyst in Spark? How do you handle skew in joins? How do you debug performance issues? What Azure Key Vault? What is Microsoft Entra ID? What is Databricks Catalog (Unity Catalog)? What is Compute in Databricks? What is HTML? What is HTML?