Placement Papers: Hughes Software System Paper 1

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  1. Which of the folowing is not correct
  2. Question on logic ckt. U have to find the output ans. AB′ + CD′ + EF′
  3. Output of MUX
  4. If X and Y are two sets. | X|and|Y | are corresponding coordinates and exact no. Of functions from X to Y is 97 then
  5. If two dies are thrown simultaneously what is the prob. Of one of the dice getting face 6?
  6. The relation, < on reals is
  7. In C language the parameters are passsed by
  8. Diasy chaining related question (refer Z80)
  9. RAM chips arranged in 4X6 array and of 8kX4bit capacity each. How many address lines reqd. To access each byte
    1. 12
    2. 16
    3. 15
    4. 17
  10. Question related to AVL trees regarding how many no. Of nodes to be changed to become balanced after addition of a leaf node to a particular node. Ans. 3
  11. When following sequence is insertedin the binary search tree no. Of nodes in left and right subtrees 52 86 64 20 3 25 14 9 85
  12. Method used for Disk searching.
  13. Which of the following is correct statement.
  14. AX = B where A is mXn, b&X are column matrices of order m
  15. The option avialable in C ++ , not C:
  16. int a [4] = {1,2, 3,4} ; int ⚹ ptr; ptr = a; ⚹ (a + 3) =⚹ (++ ptr) + (⚹ ptr ++) ; A part of code is shown. The elements in A after the execution of this code.
  17. Critical section program segment is
  18. when head is moving back and forth, the disk scheduling algorithm is ________
  19. how many times the loop will execute LOOP LXI B, 1526H DCX B JNZ LOOP
    1. 1526H times
    2. 31
    3. 21
    4. 38
  20. the addressing mode in which the address of the operand is expressed explicitly within the instruction
    1. index addressing
    2. absolute
    3. indirect
    4. immediate
  21. (A B) U (B A) U (AC) = ? where A, B are two sets A′ B′ are compliments of A and B
  22. the network that does not use virtual circuit
  23. source routing bridge
  24. cache access time 100 msec. Main memory access time 800 msec if the hit ratio is 95 % , what is mean access time …
  25. the module that should be always reside in main memory is
  26. The order of algorithm to merge the two sorted lists of lengths m and n is
  27. A chocolate block is of 4 X 4 size. How many cuts are needed to make 1 X 1 size blocks. No simultaneous vert. & horz. Cuts.

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