Johnson Controls interview questions

Share your experience in managing a difficult customer.

1st Round Johson Controls: 13-Jan-2022 About myself, SDLC life cycle which we follow, What is socket. What is virtual memory how we use it and where we wl use it. How data structures are classified and based on what. Like Linear.... What is the difference between stack and queue. What is a binary tree WAP to reverse a given number. WAP to sort an array. Any sorting What is call by value and call by reference WAP and evaluate both. What is a structure and union. What is the difference between them. What is static memory allocation and dynamic memory allocation? What is the difference between calloc and malloc. What are the keywords u use to clear the memory. Different principles of OOPS. Like Inheritance, polymorphism, Encapsulation and abstraction. Explain each and every thing with example and how can we use them. What is the multiple Inheritance. How to solve diamond problem. Ans: using Virtual keyword for class. What is runtime polymorphism? Puzzle about 5liter and 3littr water. How to measure 4 liters. Ans: in below link.