RRB JE (IT) : Computer Organisation Quiz 1

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Question 1

Consider the following

• AZ=(A+B)'C'
• BZ= (A+B).BC
• CZ= (A+B).BC'
• DZ= ((A'+B)'.BC)'

Question 2

In the following J-K flip-flop we have AND k=1. Assuming the flip-flop was initially cleared and then clocked for 6 pulses, the sequence at the Q output will be

• A010000
• B011001
• C010010
• D010101

Question 3

Consider the following signed numbers(negative numbers are represented in 2’s complement form)
X=11110101
Y=00001000
Z=11111110
What is the result of XY/Z?

• A11010100
• B00101100
• C00011100
• D11011000

Question 4

Consider the term non vectored interrupt, choose which one of the following is not an example of an vectored interrupt

• ATRAP.
• BINTR
• CRST7.5
• DRST 3

Question 5

Which of the following are not considered as part of I/O interface which connects bus and I/O device?
(i) Address decoder
(ii) Control circuitry
(iii) Data and status register

• AOnly (i) and (iii)
• BOnly (ii) and (iii)
• C(i), (ii) and (iii)
• DNone of these

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