A.  Evaluate an arithmetic expression in postfix form 
B.  Implement recursion 
C.  Convert a given arithmetic expression in infix form to its evaluate postfix form 
D.  Allocate resources(like CPU)by the operating system 
Option: D Explanation : Click on Discuss to view users comments. 
A.  3,4,5,1,2 
B.  3,4,5,2,1 
C.  1,5,2,3,4 
D.  5,4,3,2,1 
Option: B Explanation : Click on Discuss to view users comments. devendra said: (8:50am on Friday 13th September 2013)
correct answer is D

A.  Radix 
B.  Breadth first search 
C.  Recursion 
D.  None of these 
Option: C Explanation : Click on Discuss to view users comments. 
If the sequence of operations push (1), push (2), pop, push (1), push (2), pop, pop, pop, push (2), pop, are performed on a stack, the sequenceof popped out values are
A.  2, 2, 1, 1, 2 
B.  2, 2, 1, 2, 2 
C.  2, 1, 2, 2, 1 
D.  2, 1, 2, 2, 2 
Option: A Explanation : Click on Discuss to view users comments. 
In evaluating the arithmetic expression 2 * 3(4+5), using stacks to evaluate its equivalent postfix form, which of the following stack configuration is not possible?
A.  
B.  
C.  
D.  
Option: D Explanation : The postfix equivalent is 2 3 * 4 5 + . For evaluating this using stack, starting from the left, we have to scan one by one. If it is an operand push. if it is an operator, pop it twice, apply the operator on the popped out entries and push the result onto the stack. If we follow this, we can find configuration in option (d) is not possible. Click on Discuss to view users comments. 