Programming Concepts and Logics | Check Your Level | MCQ April 3, 2025April 17, 2024 by jaminrai Programming Concepts & Logics This MCQ helps to check levels of:your understanding on programming languagesunderadatnd about compiler, interpreter and Assemblerdifferent High level languagesdifferent types of errors in programmingcontrol structureProgram design toolstypes of dataI/O function, operator and many more 1 / 76 How long the following loop runs? for(x=1;x=3;x++) One time Forever Three times Never 2 / 76 Which is the right way to declare constant in C? int const var = 10; All of these int const var=10; const int var = 10; 3 / 76 Which of the following is format specification for printing string in printf() %c %s %d %f 4 / 76 A C string element is always stored in? None of these options Sequential memory location Alternate memory location Random access location 5 / 76 Which loop executes at least once while do while if For 6 / 76 How much memory should require holding long integer data in Computer? 2 4 1 8 7 / 76 Which of the following symbol is not a valid character set? < @ > # 8 / 76 Which of the following character is used to terminate an instruction in C Program? Comma Colon Period Semicolon 9 / 76 Which of the following symbol is not a valid keyword auto break else if short 10 / 76 A string constant in C is terminated by "" 'O' ' ' " 11 / 76 The operator && is an example of ____ operator. Rational Assignment Logical Increment 12 / 76 The ____ statement is used in the loops to skip a part of the loop and continue the next cycle of the loop. Continue Break Switch If 13 / 76 Which of the following is not a type of branching statement? If else if If else Switch case Do while 14 / 76 Which operator is used to find remainder of two integers? MOD ! % 15 / 76 Which one is input function? printf puts putchar scanf 16 / 76 Null character is represented by n O 2 17 / 76 The operator & is used for Logical AND Logical OR Bitwise AND Bitwise OR 18 / 76 What is the work of break keyword? Exit form loop or switch statement None of these Halt execution of program Restart execution of program 19 / 76 Which of the following operator reverse the result of expression its operators on? All of the options are correct ! && || 20 / 76 Which function is used to display a string? putchar gets scanf printf 21 / 76 The Expression : a+=4 means a=a+4 a=4 a+4=a a=4+4 22 / 76 Which of the following is interpreted language? BASIC C++ Language Visual Basic C Language 23 / 76 Which header file is essential for using strcmp() finction? strcmp.h string.h strings.h text.h 24 / 76 What is the use of sqrt() library function? To find roots of equations To find square of given number To find square root of given number. To find square root of a circle. 25 / 76 Which keyword can be used for coming out of recursion? Return Exit Break Both Return and Break 26 / 76 Which of the following format specifier is used for string data type? d f s g 27 / 76 What is the output of expression : 7%3 2 2.5 3 1 28 / 76 Which operators are known as ternary operators? ::? <,;; None of these ?: 29 / 76 What c function copies the contents of one string to another? strcmp() strcpy() strrev() None 30 / 76 ++ Operator used within loops increment the value of variable by Depends on compiler 2 10 1 31 / 76 Which of the following statement is not true? Preprocessor directive is a special type of program that helps to execute codes before passes through compiler. Library function are defined outside header files #include helps to necessary headers files to the program #include and #define are commonly used preprocessors 32 / 76 Which of the following is not an arithmetic operator? & * + % 33 / 76 Which of the following statement is not true? C is internationally standardized programming language C is powerful and portable programming language C is a general purpose low level programming language C is structural programming language. 34 / 76 Among unary operation which operator represents increment? -- ++ = ! 35 / 76 _____ is a picture in which the flows of computational paths are depicted. Flowchart Code Algorithm Program 36 / 76 Who is the father of C programming? Dennis Ritchie E.F. Codd Von Neuman James A. Gosling 37 / 76 Which type of constant is defined by using #define? integer constant escape sequence symbolic character 38 / 76 Which of the following statement is not true?? Meaningless instructions make the logical errors A syntax error is easy to find than logical error. A run time errors occur during the running time of the software A logical error is easily detected by compiler. 39 / 76 This of the following statement is not true A compiler finds errors after compilation process A compiler is faster than interpreter A compiler is more efficient than interpreter A compiler does not create object code 40 / 76 Which of the following is not a loop used in C For each loop Do while loop While loop For loop 41 / 76 This C function copies the contents of the source string at the end of the target string? strcat() both Strcat() & copycat() none of the options copycat() 42 / 76 Which of the following statement is correct? strcmp(s1,s2) returns 0 if s1= =s2 strcmp(s1,s2) returns a number less than 0 if s1>s2 strcmp(s1,s2) returns 1 if s1= =s2 strcmp(s1,s2) returns a number greater than 0 if s1<s2 43 / 76 C is _____ Language? Middle Level Low Level Machine Level High Level 44 / 76 Which of the following is not basic data types in C language? char float int string 45 / 76 Which of the following is not true? Algorithm is a finite sequence of instructions for solving a problem Flowchart is a pictorial form of algorithm that describes the procedure to solve a problem Pseudo code is expressed in terms of English like structure and mathematical expression. A flowchart can solve complex real-world problem 46 / 76 Which of the following is not a type of control structure? Condition Selection Sequence Looping 47 / 76 Which component is not required in a simple if else statement? condition false statement true statement counter statement 48 / 76 A string in C is 2-D Array of Character 1-D Array of character None of these Both 1-D and 2-D array of character 49 / 76 Operator % in C language is called? Quotient operator Modulus Percentage operator Division 50 / 76 Which component is not required to define a simple loop? counter statement break statement initialization condition 51 / 76 Which type of type specifier is used to hold integer type data? %f %e %d %c 52 / 76 The process of translating a source program into machine language is a function of: None of these Assembler Translator Compiler 53 / 76 Every program in C has at least one function which is _________ sum None of these main void 54 / 76 C Language developed at _____? AT & T's Bell Laboratories of USA in 1972 AT & T's Bell Laboratories of French in 1972 Cambridge University in 1972 Sun Microsystem in 1973 55 / 76 Which of the following language is not a type of third generation language? Java FORTAN BASIC C Lanugage 56 / 76 Which of the following symbol is used to denote a pre-processor statement? ~ ! # ; 57 / 76 Number of keywords present in C languages is? 34 64 32 62 58 / 76 Which pair of functions below are used for single character I/O scanf() and printf() getchar() and putchar() none of these input() and output() 59 / 76 The activity of removing an error in the program is called _____ Debugging Editing Entering Compiling 60 / 76 Which escape character can be used to begin a new line in c? n a b m 61 / 76 Int len=strlen("Jamin Rai"); printf(%d",len);What would be the value of len printed? 10 9 Depends on compiler 8 62 / 76 The continue statement cannot be used with ____ Switch For Do while While 63 / 76 Which one is output function? printf gets getchar scanf 64 / 76 Which of the following symbol is valid identifier? X_1 x.1 1.x 1_x 65 / 76 What is program? All of the options are correct A finite set of subprograms to computer to perform specific task A finite set of instruction to computer to perform specific task A finite set of functions to computer to perform specific task 66 / 76 Which statement is not true? The data items of array are stored in contiguous memory locations. The size of an array is static. An array is collection of similar type of data items. An array is collection of dissimilar type of data items. 67 / 76 C program are converted into machine language with the help of An Editor A compiler An operating system Interpreter 68 / 76 Which is the unformatted input function to accept a multiword input in c language? finds() getc() scanf() gets() 69 / 76 Which of the following statement is not true? BCD code is represented in terms of 5 bits to represent a single decimal digit. Unicode is 16 bits codes to represent 65536 different characters, numbers, symbols,, etc. EBCD is 8 bits codes to represent 256 characters or symbols in IBM mainframe ACSII is 8 bit codes to represents 256 characters or symbols 70 / 76 Which among the following is an unconditional control structure? do-while goto if-else for 71 / 76 Which function is used to copy string? strcpy strcopy strcp strcat 72 / 76 What will be the value of y if x=8? Y=(x>6?4:6) 0 6 compiler error 4 73 / 76 What is the maximum length of a C string? None of these options are correct 64 characters 256 characters 32 characters 74 / 76 Array elements are always store in ________ memory location Sequential and Random Sequential Non of these Random 75 / 76 A labeled statement consist of an identifier followed by ; = : , 76 / 76 If you have to make decision based on multiple choices, which of the following is best suited? 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