Q1: It is the first layer in OSI reference model.
- a) data link
- b) physical
- c) application
- d) software
Q2: The output of two input is 0 only when :
- a) both inputs are 0
- b) both inputs are 1
- c) either input is 1
- d) either input is 0
Q3: XOR gate produces output only when:
- a) both inputs are 0
- b) both inputs are 1
- c) either input is 1 or 0
- d) none
Q4: AND gate produces output only when :
- a) both inputs are high (i.e. 1)
- b) both inputs are low (i.e. 0)
- c) either input is 1 or 0
- d) none
Q5: The function of NOT gate is to :
- a) stop a signal
- b) invert input signal
- c) act as a universal set
- d) none
