Communication Methods with Fire

With just fire, how could people communicate with each other?

• By using smoke signals

• By shouting across distances

• By using mirrors to reflect sunlight

• By sending messenger birds

Which of the following is a concept related to connecting everyday devices to the internet?

• Internet of Things

• Local Area Network

• Virtual Reality

• Cloud Computing

What does copper use to transmit signals?

• Pulses of light

• Electrical current

• Sound waves

• Magnetic fields

In a copper transmission, what does the presence of an electrical current represent?

• 0

• 1

• 2

• 3

Which letter corresponds to the binary code 1000100?

• B

• C

• D

• E

What is the decimal equivalent of the binary number 1010100?

• 82

• 84

• 86

• 88

What is the denary equivalent of the binary number 1101?

• 11

• 12

• 13

• 14

How do you calculate the denary value from the binary number 1101?

• Add 1, 2, and 4

• Add 1, 4, and 8

• Add 2, 4, and 8

• Add 1, 2, and 8

What is the denary equivalent of the binary number 1101?

• 11

• 12

• 13

• 14

What is the decimal equivalent of the binary number 0010?

• 1

• 2

• 6

• 9