C Programming Quiz Questions PDF

To print \ you need to write \\ To print a % you need to write %% \t is how you create a tab \n is how you create a new line system (“PAUSE”); stops program from quitting when over, waits for user input first. #include start every program with this, it allows functions like printf and scanf to...

To print \ you need to write \\ To print a % you need to write %% \t is how you create a tab \n is how you create a new line system (“PAUSE”); stops program from quitting when over, waits for user input first. #include start every program with this, it allows functions like printf and scanf to be used. return 0; last thing before ending the main program with }. This is a check that returns 0 if the code ran successfully. If an integer data type is 6-bit, it supports 64 different unique combinations. An unsigned integer is a data type that can only represent non-negative values. Range of values for unsigned integers 𝑛−1 is 0 to 2. 6-bit unsigned integers support the range of values 0 to 63. A signed integer is a data type that can represent both positive and negative values. The range of values for signed 𝑛−1 𝑛−1 integers will be − 2 to 2 − 1. 6-bit signed integers support the range of values -32 to 31. Software is considered fast when the HDD access is reduced, the memory locality is maximized, and the CPU computations are at a minimum. High voltage isn’t necessarily represented by “1” ASCII is 8 bit, and can represent 256 unique characters. Unicode supports all of the world’s languages, representing over a million unique characters. Assembly language is a more technical form of high-level code, closely reflecting CPU operations, but it is platform dependent, and not portable. A bug free piece of C code execution sequence goes like this: High-level C code → Assembly code → Machine code C variable and function naming rules: letters, digits, and _ allowed. Variables must begin with letters. Keywords are not allowed. E.g. for, while, int. No spaces. C is case sensitive. You cannot write 100 > n > 20 in C. You need to use logical operators && (and) || (or). Ternary / condition operator puts(condition ? “if true print” : “if false print”); If you do not add break; between each case of a switch statement, the code will continue to execute the following cases, until it encounters a break. break; terminates the loop. continue; skips the current iteration of the loop and moves to the next iteration of the loop. To determine if a number is prime, check if the number is divisible by integers from 2, to the square root of the number. A Function in C doesn't need to always return a value. Do while loop executes the loop at least once, even if the condition is false. In a function, parameters are transferred by value. The main function cannot be called in the program! You can call other functions within the main function, but the main itself is never called. Functions are not required to be called by the main function. long func(int n, int i) is a function. An invalid call for this function would be something like func1(“5”, 3) because this function takes in int values. Valid calls would be func1(5,10) or long result = func1(3,2) and int result = func1(7,4) What is the result of 5 / 2 in C? 2 Which data type can store the largest value? Double / long float What is the default return type of main() in C? Int float takes more memory than int. True The switch statement can check conditions using relational operators. False The keyword is used to define a constant variable in C. const The standard library function is used to take input from the user in C. scanf The process of converting a float to an int using (int) is called. Type casting