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Message

   Hi frendz,

1)int main()

{

 int z, x = 5, y = -10, a = 4, b = 2;

 clrscr();

 z = x++ - --y*b/a;

 printf("%d \n",z);

}

unable to understand the evaluation of expression ? i have checked on Turboc Ans is 10 can any body explain pls how it comes?

2)In a certain machine data references constitute 40% of the mix, and
that the ideal CPI of the pipelined machine is 1. Assume that the
machine with structural hazards has a clock rate that is 1.05 times
higher than the clock rate of machine without hazard. What is effective
speedup with pipelining without structural hazard?

A. 1.05

B. 1.3

C. 1

D. none of above

3) Consider three tables with following number of tuples in each

S(a,b,c) = 100

R(a,d,e) = 80

T(x,d,f) = 90

Tuples in S and R with same value of attribute “a” = 60

Tuples in R and T with same value of attribute “d” = 70

Maximum and minimum number of tuples in (S left outer join R) full outer join T is:

A. 130 120

B. 150 140

C. 140 130

D. 140 120

Pls explain in detail how the ans comes?

4)Let A be a sequence of 8 distinct integers sorted in ascending
order. How many distinct pairs of sequences, B and C are there such
that

(i) each is sorted in ascending order,

(ii) B has 5 and C has 3 elements,

(iii) the result of merging B and C gives A?

A. 2

B. 30

C. 56

D. 256

Author	Message
Vijay007 Newbie Joined: 02Feb2007 Online Status: Offline Posts: 19	Topic: Difficulty of Test7 and other questions Posted: 02Feb2007 at 5:18pm
	Hi frendz, 1)int main() { int z, x = 5, y = -10, a = 4, b = 2; clrscr(); z = x++ - --yb/a; printf("%d \n",z); } unable to understand the evaluation of expression ? i have checked on Turboc Ans is 10 can any body explain pls how it comes? 2)In a certain machine data references constitute 40% of the mix, and that the ideal CPI of the pipelined machine is 1. Assume that the machine with structural hazards has a clock rate that is 1.05 times higher than the clock rate of machine without hazard. What is effective speedup with pipelining without structural hazard? A. 1.05 B. 1.3 C. 1 D. none of above 3) Consider three tables with following number of tuples in each S(a,b,c) = 100 R(a,d,e) = 80 T(x,d,f) = 90 Tuples in S and R with same value of attribute “a” = 60 Tuples in R and T with same value of attribute “d” = 70 Maximum and minimum number of tuples in (S left outer join R) full outer join T is: A. 130 120 B. 150 140 C. 140 130 D. 140 120 Pls explain in detail how the ans comes? 4)Let A be a sequence of 8 distinct integers sorted in ascending order. How many distinct pairs of sequences, B and C are there such that (i) each is sorted in ascending order, (ii) B has 5 and C has 3 elements, (iii) the result of merging B and C gives A? A. 2 B. 30 C. 56 D. 256 Post Resume:* Click here to Upload your Resume & Apply for Jobs

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