C Interview Questions

“Most of the compiler programs that translate human-readable source code into computer-executable machine code and Java Virtual Machine, or JVM, are written in C. Programs developed after C used it as a reference, such as C++. Rust, and JavaScript. The C program introduces core concepts such as file handling,  arrays, and functions, which explains why it's used in other languages.”

“Dennis Ritchie is the founder of C language. He was a pioneer in computer science with extensive implications in developing the history of computing and modern-day computing. In 1972 he developed it at Bell laboratories of AT&T in the United States. It was initially for use in the UNIX operating system and it includes many features of B and BCPL. It was developed to advance the programs in those languages.”

“C is a mid-level language because it joins the low-level and high-level programming languages. It can be used for system programming and as an application program for a billing system driven by customers. A few features include that it's portable, structured, fast, and has an inbuilt memory function.”

"Compilers convert the program into object code all at one time. Interpreters execute program codes one line at a time. Used in C language, the compiler translates complete code into machine code all at one time. Java's program language uses interpreter, which compiles code line-by-line."

" Logical errors, which happen when the computer program implements an incorrect logic, happen since there's no report generated for logical errors. They're the most difficult errors to handle. Another error type is runtime. These occur when a program contains an illegal operation, for instance, dividing a number by zero. When a runtime error is detected, the program execution stops and displays a diagnostic message. Finally, syntax errors happen when grammatical rules are violated within the programming language. Syntax errors are discovered during compile time."

"Data structure plays a role in organizing databases and within various operational systems. It also plays a crucial role in numeric analysis and artificial intelligence."

"My priority is being a team player. The success of the project depends on  people working together. I like to focus on being a contributor to help coordinate group efforts. I'm also comfortable leading. I have excellent organizational and motivational skills that have helped me successfully guide important projects."

“When I see a teammate disengaged, I reach out to them. I first thank them for their contributions, and I try to start on a positive note and give them some recognition to foster confidence. I'd find out if they were stressed over the next steps in the project or stuck on some current tasks. I would identify their obstacles, offer my support, and help them make progress. This may involve some coaching, but the goal is to restore their confidence and to move forward on the project.”

 “I once worked with a team where the project seemed to be a constant struggle. I found out that one team member wasn't communicating and ended up missing their deadline. The rest of us fell behind because of this. Everyone reached out to the team member who was struggling to find any obstacles in the teammate's way and remove those problems so we could get back on track. This gave that team member more confidence, and they became more engaged and communicated better with the team. As a team, we overcame the delays, and the project was a success.”

"The three main control structures are sequence, decision control, and loop. Sequential control performs steps one, two, and three, until all steps are completed. The decision control, also known as the selection control structure, depends on true and false answers. Loops, or repetition structures, run blocks of statements multiple times. It continues until a specified condition is met.”

“The issues include the amount of space necessary for the program, the length of time a programmer needs to code a sorting program, and the amount of machine time needed to run the program. A couple of suggestions that I've learned in my career are to use bigger dictionary sizes, experiment with diverse compression algorithms, and to split the file into smaller batches to sort.”

“A constant is a fixed value that can't be changed. A variable is a name that identifies a specific memory location. A value can be assigned to a variable that can be used throughout the program. Each is a specific data type and when storing an integer, it can't be used to store a floating-point value.” 

“In C programming, a function contains a function header and a function body. The parts are return type, where the function can return a value using the keyword 'void.' Another part is the function name, or the actual name of the function, which, with a parameter list, establishes the function signature. A parameter is a function that's a placeholder, and finally, the function body is a collection of statements defining what the function does.

“Pointers are a critical part of C programming along with loops and function. A pointer is a special variable that stores the memory address. The necessities of pointers include the ‘ampersand,' which is denoted by the ‘and' symbol, and the ‘dereferencing' factor, which is signified by the ‘asterisk' symbol.”

"I have  10 years of programming experience and have written in C, C++, Python, Java, and JavaScript. I have a bachelor's degree in computer science. My experience includes writing, integrating, and testing software code for e-commerce, internet applications, and special effects for film and video. Besides writing code for new projects, I can maintain existing programs through required modifications. I enjoy taking on management tasks, evaluating software, analyzing information, and projecting outcomes. My other skills include teaching and training, designing, and networking."