Wipro Palcement paper1

Wipro paper(System software) July-1997
1) abcD+abcd+aBCd+aBCD then the simplified function is ( Capital letters are copliments of corresponding letters A=compliment of a)
[a] a [b] ab [c] abc [d] a(bc)* [e] none (bc)*=compliment of bc
2) A 12 address lines maps to the memory of
[a] 1k bytes [b] 0.5k bytes [c] 2k bytes [d] none
3) In a processor these are 120 instructions. Bits needed to implement this instructions
[a] 6 [b] 7 [c] 10 [d] none
4) In 8085 microprocessor READY signal does.which of the following is incorrect statements
[a]It is input to the microprocessor
[b] It sequences the instructions
5) Return address will be returned by function to
[a] Pushes to the stack by call
6)
n=7623
{
temp=n/10;
result=temp*10+ result;
n=n/10
}
7) If A>B then
F=F(G);
else B>C then
F=G(G);
in this , for 75% times A>B and 25% times B>C then, is 10000 instructions are there ,then the ratio of F to G
[a] 7500:2500 [b] 7500:625 [c] 7500:625 if a=b=c else
8) In a compiler there is 36 bit for a word and to store a character 8bits are needed. IN this to store a character two words are appended. Then for storing a K characters string, How many words are needed.
[a] 2k/9 [b] (2k+8)/9 [c] (k+8)/9 [d] 2*(k+8)/9 [e] none
9) C program code
int zap(int n)
{
if(n<=1)then zap=1;
else zap=zap(n-3)+zap(n-1);
}
then the call zap(6) gives the values of zap
[a] 8 [b] 9 [c] 6 [d] 12 [e] 15
PART-B
1) Virtual memory size depends on
[a] address lines [b] data bus [c] disc space [d] a & c [e] none
2) Critical section is
[a]
[b] statements which are accessing shared resourses
3) load a, mul a, store t1, load b, mul b, store t2, mul t2, add t1, then the content in accumulator is
4) question (3) in old paper
5) q(4) in old paper
6) question (7) in old paper
7) q(9) in old paper