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Hubs, Switches and Routers

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Contents

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Course Introduction
1
What is The Cloud?
PREVIEW5m 4s

The course is part of this learning path

Cloud Literacy
6
4
3
Hubs, Switches and Routers
Overview
Difficulty
Beginner
Duration
34m
Students
5823
Ratings
4.6/5
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Description

Want a simple explanation to some of the technical terms and concepts everyone else seems to know already? This course is here to help!

 

Transcript

Hubs, switches, and routers are all important devices. They let us connect computers to other computers, network devices, or even to other networks. But what's the difference between a hub, a switch, and a router? Well it all comes down to how intelligent they are. Nicola and her friends have decided to stay in different hotels for their holiday. She wants to get a message to her friends Tasha and Mark who are both in a different hotel. Unfortunately, she doesn't know which hotel they're in. So she writes a quick note with her number and hotel room on it and tells them to get ahold. Then she photocopies the note and drops it off at every other hotel in the town. This is how a hub works. It isn't smart and any information that enters it will simply be broadcast to every output it's connected to. Now, imagine she does know which hotel they're in, but not exactly which room they're in. She can drop the note off at the hotel's reception and she can be pretty certain they'll get it to Tasha and Mark. This is how a switch works. It's smart enough to understand that certain data only needs to go to certain outputs, but that's about it. Okay, so now imagine she does know their room number. Now she can drop the note off and have it delivered to their room and be certain it will get to her friends. It is smart and can be programmed to deal with different kinds of data in specific ways.

Lectures

What is The Cloud? - DHCP and DNS - Firewall - Encryption - The 7 Layers of the OSI Model and Encapsulation - Unicast, Multicast and Broadcast

About the Author
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Andrew Larkin
Head of Content
Students
122448
Courses
98
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Andrew is fanatical about helping business teams gain the maximum ROI possible from adopting, using, and optimizing Public Cloud Services. Having built  70+ Cloud Academy courses, Andrew has helped over 50,000 students master cloud computing by sharing the skills and experiences he gained during 20+  years leading digital teams in code and consulting. Before joining Cloud Academy, Andrew worked for AWS and for AWS technology partners Ooyala and Adobe.

Covered Topics