Which HTML5 element displays how far a task has been completed, such as a file upload?
Correct answer B. <progress>
Subject / 421 questions
Programming MCQs
Page 16 of Programming multiple-choice questions with answers. Tap an option to check yourself.
Page 16 of 22
Which attribute of the element displays the browser’s play, pause and volume buttons?
Correct answer C. controls
Which HTML5 element supplies a list of suggested options for an field?
Correct answer C. <datalist>
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Which HTML5 global attribute pattern lets authors store custom data on any element?
Correct answer A. data-*
Which operator is used with cout to send output to the screen in C++?
Correct answer C. <<
Which header file must be included to use cin and cout in C++?
Correct answer B. iostream
Which C++ operator releases memory that was allocated with new?
Correct answer C. delete
In C, what is the value of the expression 17 % 5?
Correct answer C. 2
Which standard header file must be included to use printf() and scanf() in C?
Correct answer C. stdio.h
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In C, what does sizeof(char) always evaluate to?
Correct answer D. 1
Which operator is used in C to obtain the memory address of a variable?
Correct answer B. &
What value does strlen(“hello”) return in C?
Correct answer C. 5
Which character marks the end of a string in C?
Correct answer A. '\0'
Which keyword is used in C to define a user-defined type that groups variables of different types?
Correct answer C. struct
After the C statements int x = 5; int y = x++; what is the value of y?
Correct answer B. 5
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After the C statements int a = 5; int b = ++a; what is the value of b?
Correct answer A. 6
Which C library function allocates memory for an array and sets all its bytes to zero?
Correct answer D. calloc()
Which C library function releases memory that was allocated with malloc()?
Correct answer A. free()
In C, what is the index of the first element of an array?
Correct answer D. 0
Which storage class keyword makes a local variable keep its value between function calls?
Correct answer A. static