COA L3

What does a binary '1' typically represent in voltage?

• 0V
• High voltage
• Negative voltage
• Low voltage

Which voltage level is associated with binary '0'?

• Low voltage
• High voltage
• Positive voltage
• 5V

In digital systems, what type of signals do analog quantities have?

• Discrete values
• Continuous values
• Binary values
• Boolean values

Which data transfer method sends one bit at a time over a single line?

• Parallel
• Serial
• Analog
• Boolean

In a digital system, which condition defines an ideal digital signal?

• Perfect transitions with no noise
• Gradual transitions
• Low frequency only
• High distortion

Which of the following devices uses serial data transmission?

• USB
• Parallel port
• PATA hard drive
• Internal bus

What is one advantage of serial data transfer?

• Less interference over long distances
• Higher speed for short distances
• Complexity in wiring
• High data rate

What does Boolean algebra help with in digital circuit design?

• Analysis and simplification of circuit functions
• Increasing the speed of data transfer
• Improving signal quality
• Reducing noise

Who proposed the principles of Boolean algebra?

• Claude Shannon
• George Boole
• Thomas Edison
• William Stallings

Which of the following is a Boolean operation?

• AND
• PLUS
• SUM
• MULTIPLY