Difficulty of Test7 and other questions
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Printed Date: 08Feb2025 at 4:34am
Topic: Difficulty of Test7 and other questions
Posted By: Vijay007
Subject: Difficulty of Test7 and other questions
Date Posted: 02Feb2007 at 5:18pm
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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  
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