Which keyword is used to prevent modification of a variable?

• const

• static

• volatile

• final

What is the output of printf("%d", -7 % 4); ?

• -3

• 3

• -1

• 1

Which operator is used to allocate memory dynamically in C?

•  malloc

•  alloc

• new

•  calloc

Which function is used to read a character from the user in C?

• getchar()

• putchar()

• gets()

• read()

Which data structure uses FIFO?

• Tree

• Stack

• Queue

• Graph

Which sorting algorithm is best in average case for random data?

• Bubble Sort

• Selection Sort

• Merge Sort

• Insertion Sort

What is the time complexity of binary search?

• O(n)

• O(log n)

• O(n²)

• O(1)

Choose the correct option for the given code snippet.

• Hello World

• This is Error

• Compile time Error

• Segmentation fault

 

What is the best time complexity for converting decimal to binary numbers?

• O(logn)

• O(1)

• O(n)

• O(nlogn)

Which traversal is used to get the content of a BST in sorted order?

•  Preorder

• Postorder

•  Inorder

• Level-order