12 Questions
Which component physically connects end systems to the network core?
Switches
What does the Internet mainly consist of?
Network of networks
What aspect of a computer network is considered when examining delay and throughput?
Transmission, propagation, and queuing delays
Which architectural principles are highlighted in computer networking?
Protocol layering and service models
What kind of attacks are computer networks vulnerable to?
Various types of attacks
What is considered as the principal vehicle for discussing computer networks and their protocols in this book?
The public Internet
What is the Internet primarily described as in terms of networking infrastructure?
A system that provides services to distributed applications
In Internet jargon, what are all the connected devices referred to as?
Hosts or end systems
Approximately how many devices were connected to the Internet in 2015?
5 billion
What is a common term used to refer to devices like laptops, smartphones, tablets, and TVs that are connected to the Internet?
Hosts or end systems
According to a prediction in 2014, how many devices were estimated to be connected to the Internet by 2020?
25 billion
What percentage of the world's population was estimated to be using the Internet in 2015?
Approximately 40%
Learn about computer networks, the Internet, switches, access networks, physical media, network core, network of networks, delay, loss, and throughput of data.
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