This book aims to answer a broad range of questions one may have about C. It focuses on objective type questions and provides extensive answers which will help those preparing for interviews, while mastering the concepts. This book also ensures that beginners do not have difficulty in getting used to the C concepts. The level of difficulty increases gradually, making the learning process a smoother one. The authors have made this publication more student-friendly by avoiding redundant words, materials, and dated models, while presenting detailed descriptions, providing fewer lists, and using bold print to call attention to important terms. This book specialises in assisting students and specialists getting ready for several Certification Exams and technical Interviews.