20 Objective type questions (Technical: OS, Java, Networking) and 2 programs. Time given was 90 minutes.

1) Longest Remaining Rime Scheduling

2) Threads

3) subnetmask – classB – 64 departments

4) Match the following

SMTP

BGP

TCP

PPP

5) On recursion, value of f(513,2)

if(n<0) return 0; else return ( n%10 + f(n/10, 2) )

6) Complexity?

f(i) = 2*f(i+1) + 3*f(i+2) For (int i=0; i < n; i++) F[i] = 2*f[i+1]

7) Frog steps either 1, 2 or 3 steps to go to top. In how many ways it reaches the top?

Based on recursion, options

a) f(i) = f(i+1)+f(i+2)+f(i+3)+1

b) f(i) = f(i-1)+f(i-2)+f(i-3)+1

c) f(i) = f(i+1)+f(i+2)+f(i+3)

d) f(i) = f(i-1)+f(i-2)+f(i-3)

8) Based on java 2 questions, one from Exceptions

9) Preorder is given, we had to find out the postorder

10) Memory management, pa=32bit, la=36bit , frame size=2^12, first page entry, second page entry

11) This question is from GATE CS previous question papers

for (int i=0; i < n; i++) Fork(); No of child process?

**Programs:**

1) Print left view of binary tree

2) Sum of 3 linked list

Digit.. 123------1->2->3------------linkedlist1 234----2->3->4--------------linkedlist2 34567----3->4->5->6->7---linkedlist3 Output: 34924-------3->4->9->2->4

Sum(linkedlist1, linkedlist2, linkedlist3)

We had to print the linkedlist form of the digit.

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