Barclays interview questions

What is Apache Spark, and how does it differ from Hadoop MapReduce? Explain the core components of Apache Spark. Spark Core, Spark SQL, Spark Streaming, MLlib, GraphX. What is the difference between RDD, DataFrame, and Dataset? When would you use each? How does Spark handle fault tolerance? Explain lineage and DAG (Directed Acyclic Graph). What are transformations and actions in Spark? Provide examples of each

The online assessment includes questions from Database Management Systems (DBMS), Operating Systems (OS), Object-Oriented Programming (OOPs), and one problem-solving question on Data Structures and Algorithms (DSA). Following the assessment, there will be a resume-based interview where you can expect questions focused on the skills, projects, and experiences mentioned in your resume