To gain insight into a candidate's skill in this area, you can use a problem-solving test. Through expert formulation, a skill-specific test can help you understand a candidate's level of proficiency. And testing your applicants before you start the interview process can highlight the candidates with the skills most relevant to the role. com - HackerRank Questions, Community & Contests Basic: Competency area includes configuring a Spring MVC application, Basics of the Spring framework, working with REST APIs, writing a unit test for a simple application, among others Please describe how each solution arrives at a result - in the code or, if outside, with an indication of which description.