DSA form an important part of problem solving and is an important aspect from an interview preparation point of view. It is very important to build a solid foundation in Programming Fundamentals and DSA if you are preparing for Coding Interviews. Some topics that are important from an interview point of view are Basic Data Structures (Arrays, Stacks, Queues, Trees and Graphs) and Asymptotic analysis, Recursion based problems, Greedy algorithms and Dynamic Programming.