J12CsPII-31-40

UGC NET Computer Science (Paper-II) June -2012   [1-10]  [11-20]  [21-30] [31-40]

31.Resources are allocated to the process on non-sharable basis is
mutual exclusion
hold and wait
no pre-emption
circular wait

32. Cached and interleaved memories are ways of speeding up memory access between CPU’s and slower RAM. Which memory models are best suited (i.e. improves the performance most) for which programs ?

(i) Cached memory is best suited for small loops.
(ii) Interleaved memory is best suited for small loops
(iii) Interleaved memory is best suited for large sequential code.
(iv) Cached memory is best suited for large sequential code.

(i) and (ii) are true.
(i) and (iii) are true.
(iv) and (ii) are true.
(iv) and (iii) are true.

33.Consider the following page trace : 4,3, 2, 1, 4, 3, 5, 4, 3, 2, 1, 5 Percentage of page fault that would occur if FIFO page replacement algorithm is used with number of frames for the JOB m = 4 will be
8
9
10
12

34. Check sum used along with each packet computes the sum of the data, where data is treated as a sequence of
Integer
Character
Real numbers
Bits

35.If an integer needs two bytes of storage, then the maximum value of a signed integer is
2¹⁶ – 1
2¹⁵ – 1
2¹⁶
2¹⁵

36.Which of the following logic families is well suited for high-speed operations ?
TTL
ECL
MOS
CMOS

37. Interrupts which are initiated by an instruction are
Internal
External
Hardware
Software

38.printf(“%c”, 100);
prints 100
prints ASCII equivalent of 100
prints garbage
none of the above

39. For the transmission of the signal, Bluetooth wireless technology uses
time division multiplexing
frequency division multiplexing
time division duplex
frequency division duplex

40.Consider the following statements :
I. Recursive languages are closed under complementation.
II. Recursively enumerable languages are closed under union.
III. Recursively enumerable languages are closed under complementation.
Which of the above statements are true ?
I only
I and II
I and III
II and III

This page is developed by our student: MR.MRUTUNJAY PANI, 4th semester, ICT

Thank you MRUTUNJAY !!!