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Communication Engineering Lecture 6: Communication Network and Internet of Things

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Communication Engineering Lecture 6: Communication Network and Internet of Things

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Questions and Answers

What is the purpose of Internet?

To connect millions of computer networks for exchanging data and communications (correct)

To classify networks based on transmission media and network size

To connect two or more computer networks for sharing hardware or software

To create a world-wide network for conducting online transactions

How can networks be classified based on management method?

Peer-to-peer and Client/Server (correct)

Wired and Wireless

LAN and WAN

Bus, Star, Ring

What are the two main categories of connections of computers into networks?

LAN and WAN

Bus, Star, Ring

Wired and Wireless

Guided (physical) and Unguided (wireless) (correct)

What does a LAN refer to in terms of network size?

A local area network Signup and view all the answers

Which type of connection uses wires, cables, and fiber-optic cables?

Guided (physical) Signup and view all the answers

What is the purpose of the lowercase 'i' internet?

(lower case i) any network connecting two or more computer networks Signup and view all the answers

Which type of cable has an outer metallic wrapping that serves as a shield against noise and as the second conductor that completes the circuit?

Coaxial cable Signup and view all the answers

What is the main disadvantage of optical fibers mentioned in the text?

Expensive cost Signup and view all the answers

Which wireless communication type uses electromagnetic energy that goes through space instead of along wires or cables?

Infrared Signup and view all the answers

What is the purpose of twisting two wires together in twisted pair cables?

To make them less susceptible to noise interference Signup and view all the answers

What is the analogy used to explain bandwidth in the text?

The number of lanes on a highway and data packets Signup and view all the answers

Which type of wireless communication uses frequencies between 100KHz–500MHz?

Radio frequency Signup and view all the answers

What is the main advantage of using coaxial cables for signal transmission?

Noise resistance Signup and view all the answers

What is the key factor in analyzing network performance and designing new networks according to the text?

Bandwidth Signup and view all the answers

What does fiber-optic cable use to transmit information?

Light Signup and view all the answers