First Module

Question 1

What is Internet?

Answer 1

collection of interconnected networks (internetwork or internet for short) cooperating with each other to exchange information using common standards

Question 2

What are the types of personal data?

Answer 2

1. Volunteer data: offer by agreeing the data collection
2. Inferred data: agree by using the service like the credit card
3. Observed data: recording actions of the individuals like location data

Question 3

What are three common methods of signal transmission used in networks?

Answer 3

• Electrical signals - Transmission is achieved by representing data as electrical pulses on copper wire.
• Optical signals - Transmission is achieved by converting the electrical signals into light pulses.
• Wireless signals - Transmission is achieved by using infrared, microwave, or radio waves through the air.

Question 4

What is high bandwidth?

Answer 4

Being capable of transmitting and receiving bits at a very high rate

Question 4

What is bandwidth?

Answer 4

Bandwidth is the capacity of a medium to carry data, number of bits can be sent across the media in a second
Thousands of bits per sec (Kbps)
Millions of bits per sec (Mbps)
Billions of bits per sec (Gbps)

Question 5

What is throughput?

Answer 5

Similar to bandwidth, throughput is the measure of the transfer of bits across the media over a given period of time

Question 6

Which factors might influence throughput?

Answer 6

• The amount of data being sent and received over the connection
• The types of data being transmitted
• The latency created by the number of network devices encountered between source and destination