1
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A Boolean function 'f' of two variables x and y is defined as follows: f(0,0)=f(0,1)=f(1,1)=1;f(1,0)=0 Assuming complements of x and y are not available, a minimum cost solution for realizing F using only 2-input NOR gates and 2-input OR gates (each having unit cost) would have a total cost
A
1 unit
B
4 unit
C
3 unit
D
2 unit
2
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
The minimum number of 2 to 1 multiplexers required to realize a 4 to 1 mutliplexer is
A
1
B
2
C
3
D
4
3
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
A master slave flip-flop has the characteristic that
A
change in the input immediately reflected in the output
B
change in the output occurs when the state of the master is affected
C
change in the output occurs when the state of the slave is affected
D
both the master and the slave states are affected at the same time
4
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
Choose the correct one from among the alternatives A, B, C, D after matching an item from Group 1 with the most appropriate item in Group 2.

Group1
P. shift register
Q. Counter
R. Decoder

Group2
1. Frequency division
2. Addressing in memory chips
3. Serial to parallel data conversion

A
P-3, Q-2, R-1
B
P-3, Q-1, R-2
C
P-2, Q-1, R-3
D
P-1, Q-3, R-2
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