Digital Logic (GATE (Graduate Aptitude Test in Engineering) Computer Science): Questions 1  6 of 6
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Question number: 1
» Digital Logic » Number Representation and Computer Arithmetic
Question
The equivalent in decimal for the excess3 code 423 is 
Choices
Choice (4)  Response  

a.  510 

b.  845 

c.  756 

d.  All of the above 

Question number: 2
» Digital Logic » Minimization
Question
A chip having 150 gates will be classified as
Choices
Choice (4)  Response  

a.  SSI 

b.  MSI 

c.  LSI 

d.  VLSI 

Question number: 3
» Digital Logic » Minimization
Question
A multiplexor with a 4 bit data select input is
Choices
Choice (4)  Response  

a.  4: 1 multiplexor 

b.  16: 1 multiplexor 

c.  8: 1 multiplexor 

d.  Question does not provide sufficient data or is vague 

Question number: 4
» Digital Logic » Logic Functions
Question
The 2s complement representation of the decimal value 15 is
Choices
Choice (4)  Response  

a.  1111 

b.  10001 

c.  111111 

d.  None of the above 

Question number: 5
» Digital Logic » Minimization
Question
A multiplexer with a 4 bit data select input is a
Choices
Choice (4)  Response  

a.  2: 1 multiplexer 

b.  16: 1 multiplexer 

c.  4: 1 multiplexer 

d.  Question does not provide sufficient data or is vague 

Question number: 6
» Digital Logic » Logic Functions
Question
Sign extension is a step in
Choices
Choice (4)  Response  

a.  Floating point multiplication 

b.  Arithmetic left shift 

c.  Signed 16 bit integer addition 

d.  All of the above 
