1
GATE CSE 1990
Subjective
+5
-0
Show with the help of a block diagram represent Boolean function:
$$f=AB+BC+CA$$ can be realized using only $$4:1$$ multiplexer.
2
GATE CSE 1990
MCQ (Single Correct Answer)
+2
-0.6
A graph is planar if and only if,
A
it does not contain subgraphs homeomorphic to K5 and K3, 3.
B
it does not contain subgraphs isomorphic to K5 or K3, 3.
C
it does not contain subgraphs isomorphic to K5 and K3, 3.
D
it does not contain subgraphs homeomorphic to K5 or K3, 3.
3
GATE CSE 1990
MCQ (Single Correct Answer)
+2
-0.6
Indicate which of the following well-formed formula are valid:
A
$$\left( {\left( {{\rm P} \Rightarrow Q} \right) \wedge \left( {Q \Rightarrow R} \right)} \right) \Rightarrow \left( {{\rm P} \Rightarrow R} \right).$$
B
$$\left( {{\rm P} \Rightarrow Q} \right) \Rightarrow \left( { \sim P \Rightarrow \sim Q} \right)$$
C
$$\left( {{\rm P}\, \wedge \,\left( { \sim {\rm P}\,\,V \sim Q} \right)} \right) \Rightarrow Q\left( { \sim {\rm P} \Rightarrow \sim Q} \right)$$
D
$$\left( {\left( {{\rm P} \Rightarrow R} \right) \vee \left( {Q \Rightarrow R} \right)} \right) \Rightarrow \left( {\left( {\left( {{\rm P} \vee Q} \right) \Rightarrow R} \right)} \right)$$
4
GATE CSE 1990
True or False
+2
-0
State whether the following statements are TRUE or FALSE with reason.
The Link-load -and-go loading scheme required less storange space than the Link-and-go loading scheme.
A
TRUE
B
FALSE
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