Module 1: Communication in a connected World Flashcards
What is the internet?
The internet is essentially a network of networks. Each user connects to the internet by using a physical cable or through wireless media. Underneath this network of networks lies a very real backbone of connections that bring the world to personal computing devices.
What is an example of a binary value from everyday life?
A binary digit (or bit) has two possible values, 0 or 1. The on and off state of a simple switch is an example of the two states represented by a bit.
Which category of network components includes wires and cables used in a wired network?
Network media describes the cables and wires used in wired networks and the radio frequency waves used in wireless networks.
What type of device is able to create physical movement?
Actuators are a type of device that are used to produce physical movement.
What are three options for signal transmission on a network?
There are three common methods of signal transmission used in networks:
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.
Who owns the internet?
The internet is not owned by any one individual, group of individuals, or government. The internet is an open global collection of interconnected networks.
Which type of connected device is placed on objects to track and monitor them?
Radio-frequency identification (RFID) tags use electromagnetic fields to identify and track objects.
A byte consists of how many bits?
One byte is equal to 8 bits
Which two numbers are possible values of a bit?
Only two possible values, 0 and 1.
What measurement is used to indicate thousands of bits per second?
Thousands of bits per second (Kbps) or Kilobits per second
What type of network must a home user access in order to do online shopping?
Home users will go online shopping over the internet because online vendors are accessed through the internet.
What is a SOHO Network?
A SOHO network allows computers in a home office or a remote office to connect to a corporate network, or access centralized, shared resources.
What measurement is used to indicate millions of bits per second?
Millions of bits per second (Mbps) or Megabits per second
What measurement is used to indicate billions of bits per second?
Billions of bits per second (Gbps) or Gigabits per second
What measurement is used to indicate trillions of bits per second?
Trillions of bits per second (Tbps) or Terabits per second
