ISRO CS 2011

Question 1

Consider a direct mapped cache with 64 blocks and a block size of 16 bytes. To what block number does the byte address 1206 map to

• does not map
• 6
• 11
• 54

Question 2

A context model of a software system can be shown by drawing a

• LEVEL-0 DFD

• LEVEL-1 DFD

• LEVEL-2 DFD

• LEVEL-3 DFD

Question 3

The encoding technique used to transmit the signal in giga ethernet technology over fiber optic medium is

• Differential Manchester encoding
• Non return to zero
• 4B/5B encoding
• 8B/10B encoding

Question 4

Which of the following is an unsupervised neural network?

• RBS
• Hopfield
• Back propagation
• Kohonen

Question 5

In compiler terminology reduction in strength means

• Replacing run time computation by compile time computation
• Removing loop invariant computation
• Removing common subexpressions
• replacing a costly operation by a relatively cheaper one

Question 6

The following table shows the processes in the ready queue and time required for each process for completing its job.

Process    Time
P1          10
P2          5
P3          20
P4          8
P5          15

If round-robin scheduling with 5 ms is used what is the average waiting time of the processes in the queue?

• 27 ms
• 26.2 ms
• 27.5 ms
• 27.2 ms

Question 7

MOV [BX], AL type of data addressing is called ?

• register
• immediate
• register indirect
• register relative

Question 8

Evaluate (X xor Y) xor Y?

• All 1\'s
• All 0\'s
• X
• Y

Question 9

Which of the following is true about z-buffer algorithm?

• It is a depth sort algorithm
• No limitation on total number of objects
• . Comparisons of objects is done
• z-buffer is initialized to background colour at start of algorithm

Question 10

What is the decimal value of the floating-point number C1D00000 (hexadecimal notation)? (Assume 32-bit, single precision floating point IEEE representation)

• 28
• -15
• -26
• -28