List of top Computer Science & Information Technology Questions

Which of the following is NOT a characteristic of cloud computing?
Which of the following sorting algorithms has the best average-case time complexity?
What is the unit of transfer data from main memory to cache memory?
What is the postfix expression of $P + Q / R * (S - P)$?
Which one of the following is not necessarily a property of a group?
What is the minimal sum of products form of $F(A, B, C, D) = AB + \overline{A}BC + \overline{A}B\overline{C}D$?
Which pair of UML diagrams are isomorphic?
For a machine to surpass all the letters of alphabets excluding vowels, how many states in DFA would be required?
What is the chromatic number of the complete graph $K_n$?
Which type of I/O does NOT use interrupts?

What is the output of the following C program segment? 
int j = 7; 
printf("%d, %d", j++, j--);}

Which of the following expression is a tautology?
The 2’s complement representation of the decimal value $-15$ is

What will be the output of the program? 
#include int main() 
{ union var { int p, q; } u; u.p = 100; u.q = 50; 
printf("%d\n", u.p); 
return 0; }

Which provides a method to avoid element name conflicts in XML?
What is the purpose of DTD?
Which of the following allows web pages to be updated asynchronously by exchanging data between web client and server?
What is document object model?
What is the use of XPATH?
Which element is the root element of a SOAP message?
Which is the correct syntax for declaring a variable in JSP?
The function setcookie() is used to
Which operator is used to allocate memory to array variables in JavaScript?
Which of the following is NOT a web browser?
What is the size of the key in the DES algorithm for security?