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Home » Placement Papers » Hughes Placement Papers » Hughes Placement Paper 15

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Hughes Placement Paper 15


Aptitude Questions

  1. Age problem

  2. Time and distance

  3. Coin

  4. direction problem

  5. (2n + 2 n-1/2 n+1 – 2n) what is gives if n = something

  6. ( 10n –1) n>1 when is divisible by 11.no divisible by 8

  7. find the missing no. when it is divisible by some no 

  8. Boat problem

  9. Average

           Technical Questions

  1. Which one is called family tree

  2. virtual function and overloading

  3. DHCP protocol

  4. order of insertion and Heap sort                                         

  5. left recursion

  6.  find output: for(l=1;a<=l;a++)
    cout<<++a; cout <<a;

  7. DEBUG trigger (oracle)

  8. In unrestricted session which system privilege mode is used (oracle)

  9. NEXTVAL and CURRENTVAL in sequence (Oracle)

  10. Unix system call ……like Var( )

  11. OS 384 support which memory management

  12.      Complexity to access name from the given double link list

  13. Which WAN network is suitable for the 100Km or m. distance network

  14. If duplicate segments , file are there in hardisk which is best for management
    a) FAT
    b) SAT

  15. stop n wait protocol is associated with which layer

  16. find errors from the c and c++ codes.

  17. 3 qns on operating systems. I qn on dijkestra algorithm                      

  18. Using which pin it's possible to address 16 bit addresses even though there re only 8 address bits in 8085? Ans: ALE

  19. Voltage gain for an amplifier is 100 while it is operating at 10 volts. What is the O/P voltage wen i/p is 1 volt

  20. Quality factor indicates a) Quality of inductor b) quality of capacitor c) both

  21. Qns related to bridges, routers and generators, which OSI layer they corresspond to. (Refer to stevens 4th chapter)

  22. OPAmp's I/P ciurrent, O/p current and CMRR is given, what is the voltage gain

  23. 2-3 qns on scope of static variables in C. Qn to view o/p odf a C static var

  24. Qn to print a value of a pointer

  25. OPAmp's I/P ciurrent, O/p current and CMRR is given, what is the voltage gain

  26. A qn to find the physical address from a given virtual address, virtual to physical address table was provided

  27. 6 bit mantissa and 8 bit exponent can present what maximum value?

  28. 4 bit window size in sliding window protocol, how many acknowledements can be held?

  29. Security functionality is provided by which layer of OSI

  30. Frequency spectrums for AM, FM and PM (figure given, u'veto tell which Kind of modulation it belongs to)

  31. Among AM and FM which is better and why?

  32. LASt stage of TTL NAND gate is called: Ans: Totem Pole Amplifie

  33. SR to JK flip flop conversion. Ans: S=JQ', R=KQ

  34. LSB of a shift register is connected to its MSB, what is formed: Ans: RING Counter

  35. 2-3 Qns based on Demorgan's laws (identiies: (A+b)' = A'b', etc) 

  36. 2 qns on Logic gates (O/p of logic gates)

  37. Diff in IRET and RET statements of 8086                        

  38. How many address bytes are required to address an array of memory chips (4 * 6), each chip having 4 memory bits and 8k registers.

  39. Diff. in memory mapped and I/P O/P mapped Input/Output (Refer a book on Microprocessor)

  40. Qn on pipeline architecture

  41. QN on LAPB protocol

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