Pergunta de entrevista da empresa Birlasoft

PYTHON ------------ 1) What is the use of Class Method? 2) What is the Garbage Collection? 3) What are data structures in python? 4) What is the difference between Boto resource and Boto Client Object? ETL/DWH ------------- 1) What is the difference between Data Lake and Data WareHouse? 2) Can you pull data from multiple sources for Glue? S3, csv files etc 3) Is Teradata RDBMS or NoSQL DB? 4) Difference between RDBMS and NoSQL DB? 5) Which DB is better for storing redundant data? 6) Difference betwen denormalized RDBMS and NoSQL for storing redundant data? AWS ------ 1) Why is AWS Glue Used? Is it used to create a Data Lake or Data Warehouse? 2) What is Cold Start Procedure in Lambda? 3) What is the maximum exection time of Lambda? 4) How to execute a 40 minute job using Lambda? 5) How to compress an image file using Lambda? 6) Assume a S3 Bucket hosted in another account which is private and I need to access the file path in that S3 Bucket using a another aws account 7) Vertical vs Horizontal scaling in AWS