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Fundamental principles in Bitcoin network protocol design - Andreas M. Antonopoulos
 
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One of the fundamental principles when you're designing protocols is to have separation between the layers such that you don't have side-effects bleeding from one layer to another. This form of abstraction allows you to have clean interfaces between the layers so that you can't see what's happening in one layer from the layer underneath or above there are no effects that bleed. You don't try to implement everything in one layer these are fundamental principles in network protocol design. This clip is an excerpt from 'The Baltic Honeybadger 2017 live broadcast' https://youtu.be/DHc81OL_hk4 streamed on 25 Nov 2017 by the Hodl Hodl Exchange YouTube channel https://www.youtube.com/channel/UCgujEoZqX_FfDTLb3Uuhsdg Follow Andreas on Twitter @aantonop https://twitter.com/aantonop Subscribe to Andreas's YouTube channel https://www.youtube.com/user/aantonop Check out Andreas's website https://antonopoulos.com/ Support Andreas by becoming a Patreon https://www.patreon.com/aantonop Follow Bitcoinboy on Twitter @BitCoinBoy https://twitter.com/BitCoinBoy If you'd like to support this channel 1BtCboyxPL4WNutwq79oqsQ5Vc25SchoZp You can also support the channel by simply upvoting my post here https://steemit.com/@btc-central Music: TeknoAXE's Royalty Free Music: Cavern Starting Area https://youtu.be/1DtfwcfXJss -~-~~-~~~-~~-~- Please watch: "Turn-key Smart Contracts | Matt Swezey" https://www.youtube.com/watch?v=n6MW4zTQFUQ -~-~~-~~~-~~-~-
Views: 961 Bitcoinboy
13. Network Protocols
 
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MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses the Kerberos authentication service. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 83934 MIT OpenCourseWare
The Internet of Things: Architecture and Protocols
 
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In this session, JP Vasseur, Chief Architect for the IoT Group at Cisco and Cisco Fellow, provides a short overview of the IoT architecture and its protocols. This comprehensive architecture addresses these new concerns and presents a meaningful path
Views: 206576 element14 extras
What is COMMUNICATIONS PROTOCOL? What does COMMUNICATIONS PROTOCOL mean?
 
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What is COMMUNICATIONS PROTOCOL? What does COMMUNICATIONS PROTOCOL mean? COMMUNICATIONS PROTOCOL meaning - COMMUNICATIONS PROTOCOL definition - COMMUNICATIONS PROTOCOL explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. In telecommunications, a communication protocol is a system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. These are the rules or standard that defines the syntax, semantics and synchronization of communication and possible error recovery methods. Protocols may be implemented by hardware, software, or a combination of both. Communicating systems use well-defined formats (protocol) for exchanging various messages. Each message has an exact meaning intended to elicit a response from a range of possible responses pre-determined for that particular situation. The specified behavior is typically independent of how it is to be implemented. Communications protocols have to be agreed upon by the parties involved. To reach agreement, a protocol may be developed into a technical standard. A programming language describes the same for computations, so there is a close analogy between protocols and programming languages: protocols are to communications what programming languages are to computations. Multiple protocols often describe different aspects of a single communication. A group of protocols designed to work together are known as a protocol suite; when implemented in software they are a protocol stack. Most recent protocols are assigned by the IETF for Internet communications, and the IEEE, or the ISO organizations for other types. The ITU-T handles telecommunications protocols and formats for the PSTN. As the PSTN and Internet converge, the two sets of standards are also being driven towards convergence. Despite their numbers, networking protocols show little variety, because all networking protocols use the same underlying principles and concepts, in the same way. So, the use of a general purpose programming language would yield a large number of applications only differing in the details. A suitably defined (dedicated) protocolling language would therefore have little syntax, perhaps just enough to specify some parameters or optional modes of operation, because its virtual machine would have incorporated all possible principles and concepts making the virtual machine itself a universal protocol. The protocolling language would have some syntax and a lot of semantics describing this universal protocol and would therefore in effect be a protocol, hardly differing from this universal networking protocol. In this (networking) context a protocol is a language. The notion of a universal networking protocol provides a rationale for standardization of networking protocols; assuming the existence of a universal networking protocol, development of protocol standards using a consensus model (the agreement of a group of experts) might be a viable way to coordinate protocol design efforts. Networking protocols operate in very heterogeneous environments consisting of very different network technologies and a (possibly) very rich set of applications, so a single universal protocol would be very hard to design and implement correctly. Instead, the IETF decided to reduce complexity by assuming a relatively simple network architecture allowing decomposition of the single universal networking protocol into two generic protocols, TCP and IP, and two classes of specific protocols, one dealing with the low-level network details and one dealing with the high-level details of common network applications (remote login, file transfer, email and web browsing). ISO choose a similar but more general path, allowing other network architectures, to standardize protocols.
Views: 7870 The Audiopedia
OSI Model (OSI Reference Model) : The 7 Layers Explained
 
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Enroll to Full Course: https://goo.gl/liK0Oq The "OSI Model" also known as "OSI Reference Model" is discussed here in 2 parts: a) Understanding OSI Reference Model b) OSI Model layers a) Understanding OSI Model (00:22): http://youtu.be/p7UR7Nipqcs?t=22s The OSI reference model is one such communication model. OSI stands for "Open Systems Interconnection" which means that every system participating in this model is open for communication with other systems. This model was first defined by an organization called as ISO. The OSI model divides the communication into 7 layers. b) OSI Model layers (2:15) : http://youtu.be/p7UR7Nipqcs?t=2m15s Quick Look of the 7 layers of the OSI reference Model: 7) Application Layer is where the users interact with applications to provide data 6) Presentation Layer is concerned with the format of data exchanged between the end systems 5) Session Layer allows users on different machines to create sessions between them 4) Transport Layer is concerned with end to end communication of messages 3) Network Layer is concerned with routing of packets to correct destination 2) Data Link Layer is concerned with transmission of error free data in the form of Frames 1) Physical Layer is concerned about transmission of raw bits over the communication link Search Terms: OSI Model, OSI layers, OSI Model Layers, OSI 7 Layers, Network Layer, 7 Layers of OSI model, OSI network Model, what is osi model, OSI system, OSI Reference Model, ISO OSI Model, OSI Model layers, video URL : https://www.youtube.com/watch?v=p7UR7Nipqcs Watch ALL CN VIDEOS: https://www.youtube.com/playlist?list=PL9OIoIp8YySF4mkIihOb_j2HZIRIlYuEx For more, visit http://www.udemy.com/u/EngineeringMentor Facebook: https://www.facebook.com/SkillGurukul Twitter : https://twitter.com/Engi_Mentor
Views: 662703 Skill Gurukul
TCP/IP Explained - Backbone of your INTERNET
 
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Namaskaar Dosto, is video mein maine aapse TCP/IP ke baare mein baat ki hai, Transmission Control Protocol aur Internet Protocol ek backbone system hai jiski wajeh se Internet kaam karta hai. Mujhe umeed hai ki aapko TCP/IP ki yeh video pasand aayegi. Share, Support, Subscribe!!! Subscribe: http://bit.ly/1Wfsvt4 Android App: https://technicalguruji.in/app Youtube: http://www.youtube.com/c/TechnicalGuruji Twitter: http://www.twitter.com/technicalguruji Facebook: http://www.facebook.com/technicalguruji Facebook Myself: https://goo.gl/zUfbUU Instagram: http://instagram.com/technicalguruji Google Plus: https://plus.google.com/+TechnicalGuruji Website: https://technicalguruji.in/ Merchandise: http://shop.technicalguruji.in/ About : Technical Guruji is a YouTube Channel, where you will find technological videos in Hindi, New Video is Posted Everyday :)
Views: 271955 Technical Guruji
Basic concepts of web applications, how they work and the HTTP protocol
 
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Grab the full course now for FREE ! Visit here: https://www.naturalprogrammer.com/p/http-web-application-development-java-servlet-concepts?coupon_code=FULLOFF Discusses the basic concepts of web application development and the HTTP protocol. This is a video from my course “Web Applications, Java Servlets: A Conceptual Introduction.”
Views: 908574 Natural Programmer
Understanding Redundancy vs Resiliency: Physical Design - Part 1
 
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Redundancy vs. Resiliency. These two terms are often confused but the simple fact is that you can’t have one without the other and both are critical to designing and deploying a highly available network solution. Why should you care? Failure to understand these two basic principles is the basis of every network outages and performance issue. For this first video, we’re going to talk about redundancy and resiliency in the physical design. Those that know me hear me talk alot about network design. Why? Because, in every single instance, of a network outage or performance issue, the fault lies in the design of redundancy and resiliency. What's the definition of Redundancy defines the deployment or provisioning of duplicate devices or systems in critical areas to take over active operation if the primary device or system fails. Resiliency defines the ability to recover, converge or self-heal to restore normal operations after a disruptive event. In order for resiliency to exist, we must have redundant systems. In this video we give a great example of the real world differences between redundant and resilient solutions
Views: 10225 Vology
Network Design Principles to Differentiate the Good, the Bad, and the Ugly
 
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Speakers: Barry Greene, Cisco Systems Dave Meyer, Cisco Systems First-generation commercial Internet network engineers used key principles in the way they built, deployed, and operated their networks. The principles were derived and deployed from core theorems that proved to scale during times of exponential growth. Until the publication of RFC 3439, \"Some Internet Architectural Guidelines and Philosophy,\" these principles were undocumented and rarely passed to the next generation of network engineers. This primer discusses in detail the core principles highlighted in RFC 3439 and reviews some of the assumed fundamentals of functional, hierarchical, and modular design that are core tools for today\'s network designs. See more at: https://www.nanog.org/meetings/nanog33/agenda
Views: 1086 TeamNANOG
The QUIC Transport Protocol: Design and Internet-Scale Deployment (SIGCOMM 2017 Presentation)
 
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The QUIC Transport Protocol: Design and Internet-Scale Deployment SIGCOMM 2017 Presentation Zhongyi Shi Wan-Teh Chang Victor Vasiliev Ryan Hamilton Robbie Shade Raman Tenneti Patrik Westin Joanna Kulik Jim Roskind Jeremy Dorfman Jeff Bailey Janardhan Iyengar Ian Swett Fedor Kouranov Fan Yang Dan Zhang Charles Krasic Antonio Vicente Alyssa Wilk Alistair Riddoch Adam Langley We present our experience with QUIC, an encrypted, multiplexed, and low-latency transport protocol designed from the ground up to improve transport performance for HTTPS traffic and to enable rapid deployment and continued evolution of transport mechanisms. QUIC has been globally deployed at Google on thousands of servers and is used to serve traffic to a range of clients including a widely-used web browser (Chrome) and a popular mobile video streaming app (YouTube). We estimate that 7% of Internet traffic is now QUIC. We describe our motivations for developing a new transport, the principles that guided our design, the Internet-scale process that we used to perform iterative experiments on QUIC, performance improvements seen by our various services, and our experience deploying QUIC globally. We also share lessons about transport design and the Internet ecosystem that we learned from our deployment.
Computer Networks: Crash Course Computer Science #28
 
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Today we start a three episode arc on the rise of a global telecommunications network that changed the world forever. We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks to eventually larger worldwide networks like the ARPANET and even the Internet we know today. We'll also discuss how many technologies like Ethernet, MAC addresses, IP Addresses, packet switching, network switches, and TCP/IP were implemented to new problems as our computers became ever-increasingly connected. Next week we’ll talk about the Internet, and the week after the World Wide Web! Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 336834 CrashCourse
Internet Protocol - IPv4 vs IPv6 as Fast As Possible
 
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IPv4 vs IPv6... Why do we need to transition from the Internet Protocol that's served us so well for all these years? Maybe because we're completely running out of IP addresses! Audible Message: Give Audible's monthly audiobook service has more than just audiobooks! - use http://audible.com/techquickie to get the first one for free!
Views: 1066719 Techquickie
Principles of Network Security and Cryptography
 
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In this video tutorial we study the basic principles of Network security and also see the concept of Cryptography by understanding a basic example. Principles of Network Security to be discussed in this video are as follows: Confidentiality Authentication Integrity Non-repudiation Access Control Availability We will also learn the concept of Cryptography in this tutorial. Here's the definition of Cryptography: Cryptography is the art of achieving security by encoding messages to make them non-readable This video is a continuation of the previous video so make sure you check that video as well so that you get to know some basics of Network security. Download the FREE Network Security App on Google Playstore for Android - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets on Facebook- https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram- https://www.instagram.com/simplesnipp... Simple Snippets Google Plus Page- https://plus.google.com/+SimpleSnippets Simple Snippets email ID- [email protected] Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials For Classroom Coaching in Mumbai for Programming & other IT/CS Subjects Checkout UpSkill Infotech - https://upskill.tech/ UpSkill is an Ed-Tech Company / Coaching Centre for Information Technology / Computer Science oriented courses and offer coacing for various Degree courses like BSc.IT, BSc.CS, BCA, MSc.IT, MSc.CS, MCA etc. Contact via email /call / FB /Whatsapp for more info email - [email protected] We also Provide Certification courses like - Android Development Web Development Java Developer Course .NET Developer Course Check us out on Social media platforms like Facebook, Instagram, Google etc Facebook page - https://www.facebook.com/upskillinfotech/ Insta page - https://www.instagram.com/upskill_infotech/ Google Maps - https://goo.gl/maps/vjNtZazLzW82
Views: 25109 Simple Snippets
Webcast- Introduction to Network Design
 
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This is a recording of the Webcast event at the Cisco Community that had place on Tuesday 11 December 2018 at 10hrs PDT with cisco Designated VIP David Peñaloza. In this event, you can learn more about the best network design practices. The session intends to introduce the attendees to network design, its roots and principles, and the mindset needed to be a successful designer and a holistic network architect. Find more details ate the event page: https://community.cisco.com/t5/networking-events/webcast-introduction-to-network-design/ba-p/3758423
Views: 641 Cisco Community
Computer Networks Lecture1,Introduction to Computer network and IP address
 
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In this video I have discussed what is networking and details about IP addresses like how is classful addressing dong
IPv4 Addressing Lesson 2: Network IDs and Subnet Masks
 
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IT Engineer Training Program: http://www.zerotoengineer.com Blog: http://blog.nexgent.com Podcast: http://rockstarse.com In this lesson on IP addressing you will learn all about Network IDs, Subnet Masks, and CIDR notation. This lesson is the second of a series of three total lessons on IP addressing which break down the IPv4 address, network IDs, subnet masks, and the IPv4 class system. Lesson 1: https://www.youtube.com/watch?v=ddM9AcreVqY Lesson 2: https://www.youtube.com/watch?v=XQ3T14SIlV4 Lesson 3: https://www.youtube.com/watch?v=4xlzlgYGqW8
Views: 241079 NexGenT
BGP at 18: Lessons In Protocol Design
 
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Google Tech Talks April 17, 2007 ABSTRACT 18th anniversary of BGP. In this talk we examine the evolution of BGP over these 18 years, and look at the lessons we could learn from this. Dr. Yakov Rekhter joined Juniper Networks in Dec 2000, where he is a Distinguished Engineer. Prior to joining Juniper, Yakov worked at Cisco Systems, where he was a Cisco Fellow. Prior to joining Cisco in 1995, he worked at IBM T.J. Watson Research Center. Yakov Rekhter was one of the leading architects and a major software developer of the NSFNET Backbone Phase II. He co-designed the Border Gateway Protocol (BGP). He was also one of the lead designers of Tag Switching, BGP/MPLS based VPNs, and MPLS Traffic...
Views: 76986 GoogleTechTalks
Red Hat Ceph Storage network and security design principles
 
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Learn about key considerations for designing a secure, highly available Ceph cluster in this Red Hat Consulting whiteboard series video. Learn more: http://www.redhat.com/en/services/consulting
Views: 1553 Red Hat Storage
How the Internet Works in 5 Minutes
 
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Check out my new book, How to Prepare for Everything: www.howtoprepare.com! The internet is not a fuzzy cloud. The internet is a wire, actually buried in the ground. Computers connected directly to the internet are called "Servers," while the computers you and I use are "clients," because they are not connected directly to the internet, but through an Internet Service Provider. Routers shuttle packets of information across the internet, and transmit e-mail, pictures, and web pages.
Views: 2298055 Aaron
TCP/IP and Subnet Masking
 
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Follow the Insanity at: https://www.FailedNormal.com Downloadable Podcasts at: https://failednormal.podbean.com iTunes: https://itunes.apple.com/us/podcast/failed-normal/id1349818284?mt=2 Info Level: Intermediate Date Created: November 19, 2010 Length of Class: 69 Minutes Tracks Networking Prerequisites Introduction to Networking Purpose of Class This class teaches students about the components and concepts in a TCP/IP network. Chapters TCP/IP Overview (2:32) How TCP/IP Works (16:53) TCP/IP Numbering (43:00) Subnet Masking (48:17) Final Thoughts (64:03) Class Notes 1. TCP/IP Is technically a Protcol Suite IP Routes Traffic Layer 3 OSI Model Network Routable Networks (sub networks) TCP controls transmission between connected systems Layer 4 OSI Model Transport Windowing is the process of sending data from one computer to another in TCP/IP version 4 2. How TCP/IP Works IP Addresses -- Every device on a TCP/IP network needs an individual IP Address DNS (Domain Name Service/Server) resolves Domain names into IP Addreses DHCP (Dynamic Host Control Protcol) Servers automatically assign IP information to clients for a specific time period (Lease). Clients try to renew leases at 50% expiration point. Default Gateway (Router) connects networks. If an IP Address cannot be found on the local network the computer tries to use the Default Gateway to find the target. Subnets and Subnet Masking -- Subnets are individual networks. Subnet Masks divide IP Addresses in Subnet Number and Host Number What the Number Mean IP Addresses and Subnet Masks are made of 4 Octets of Bits 128-64-32-16-8-4-2-1 Subnet Masking IP Addresses contain the Subnet Number and Host Number. The Subnet Mask tells you where the subnet number ends and the host number begins. Classful Networks A, B, C,D,E Gone now use CIDR The Highest Address in a Subnet Range is the Broadcast address To determine the number of subnets (n is the number of bits used)= 2n To determine number of Hosts = 2n -2
Views: 2904831 Eli the Computer Guy
End to End Argument - Georgia Tech - Network Implementation
 
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Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-3641859041/m-662258718 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 Part of the Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 3935 Udacity
Bitcoin Q&A: Layered scaling and privacy
 
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How should Bitcoin, as a network protocol, be scaled through a layered architecture? One of the fundamental principles of network protocol design is to have separation between the layers so they don't bleed into each other with unintended side-effects. These are the same principles in software engineering, where your goal is to create functions that first do one thing as simply as possible, and the build more complex abstractions using those primitives (once they are proven reliable). This ensures predictability of performance and security. When the internet and World Wide Web were built, the layers were not quite as separate as they should have been; the consequence is an immeasurable lack of privacy (or "fungibility of packets"). Retro-fitting it on top has not been easy or effective. This talk took place at the Riga Art Space for the Baltic Honeybadger conference on November 25th 2017 in Riga, Latvia: https://antonopoulos.com/event/baltic-honeybadger-2017/ Watch the rest of the talk here: https://youtu.be/n4F-h4xuXMk RELATED: Scaling complex systems - https://youtu.be/dm9m1oQr6Ks The internet will eat your business - https://youtu.be/DXLZSgf4b8Q Delivering Liberty, At Scale - https://youtu.be/AecPrwqjbGw Bitcoin, Payment Security, and Consumer Protection - https://youtu.be/qMkGfB8X58o Worse Than Useless: Financial Surveillance - https://youtu.be/n4F-h4xuXMk The Killer App: Engineering the Properties of Money - https://youtu.be/MxIrc1rxhyI Beyond Price: Bitcoin's Impact on the Future - https://youtu.be/rvwVbRQ5Ysc Introduction to the Internet of Money - https://youtu.be/rc744Z9IjhY The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi Altcoins and the scaling debate - https://youtu.be/slbpdW-H3yk Scaling is a moving target - https://youtu.be/pT9kJq_Ogrk Scaling, trust, and trade-offs - https://youtu.be/vCxmHwqyJWU From barter to abstract money - https://youtu.be/KYsppZoHguQ Fungibility, privacy, anonymity - https://youtu.be/y3s8c7YDtXU Coinbase vs. the IRS - https://youtu.be/YQJk-5ZYmoM Could governments take over exchanges? - https://youtu.be/9PrJQeKl9w4 Alternatives to centralised exchanges - https://youtu.be/3jmeJjhH84s HODLing and the "get free" scheme - https://youtu.be/MhOwmsW1YNI Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 Highlights from "The Internet of Money" (Volume 2): https://youtu.be/Qkjm5E5BeB8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 13335 aantonop
OpenThread: Bringing the Internet to low-power IoT devices (Google I/O '18)
 
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Thread is a secure, reliable, IPv6-based mesh networking protocol designed for connecting battery-powered devices. OpenThread released by Nest is an open-source implementation of Thread, making the same technology used in Nest products more broadly available to developers. OpenThread supports a variety of chipsets and product platforms such as Android Things, Linux, and RTOS. This talk will provide a brief overview of Thread and how developers can quickly build IoT solutions using OpenThread. Rate this session by signing-in on the I/O website here → https://goo.gl/qS1xyt Visit the website → https://openthread.io/ OpenThread Github → https://goo.gl/mXFBd8 Simulating a Thread network using OpenThread codelab → https://goo.gl/vrn8ay OpenThread Hardware codelab → https://goo.gl/npEBc1 Watch more IoT sessions from I/O '18 here → https://goo.gl/xfowJ8 See all the sessions from Google I/O '18 here → https://goo.gl/q1Tr8x Subscribe to the Google Developers channel → http://goo.gl/mQyv5L #io18
Views: 11308 Google Developers
Network topologies ( Bus, Star, Ring, Mess, Tree, Hybrid Topologies )
 
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Network topologies such as bus topology, star topology, ring topology, mesh, tree and hybrid topologies are the layout or structure of a network, that how those computer are connected in a network. There are two structural ways, how computers are connected in a network 1. Physical 2. Logical More Networking Videos You would Like ----------------------------------------------------------------------------------------------------------- Networking Introduction: https://goo.gl/S46mDm Types of Computer Network: https://goo.gl/StL91C Unicast Multicast Broadcast: https://goo.gl/vs6XSj Basic Network Devices: https://goo.gl/w7iur5 In physical the computers are connected with physically wires following a pattern In logical connection it doesn't matter how a compute is connected physically in a network, but the data moves in a certain structure or manner. There are Various Topologies Bus Topology In bus topology, All the computers are connected with a central bus and the data flow in a single direction. It is easy to create , it's cheap and you can easily connect other computers with the main bus But if main bus fails then the whole network will go down. Ring Topology In ring topology all the computer are connected with each other one after one forming a circular or ring pattern. The data is unidirectional, but when the data flows bidirectional then ring topology is known as dual ring topology ! It increases it's efficiency. But in ring topology if a node fails then the whole network will be affected. Star Topology In star topology, there is a central hub and all the computers are connected to it. There is dedicated connection for each computer. You can upgrade the hub easily but the speed of the network is dependent on the hub and if hub fails then the whole network will fail. Mess Topology In mess topology all the computers are connected with each other ! and there are n(n-2)/2 channels to connect to n devices. It is secure, robust and it's logical ! The best example of this topology is Utorent or p2p connections. Tree Topology In tree topology there are bus and star topology are connected together and it has advance of those two topologies. It is used in wide are networks . But it is costly and wiring is tough ! Hybrid Topology In hybrid topology there are more than one topology used to connect computers in a network. The main combination is star bus and ring topology. There in this topology it is very easy to detect and remove faulty part in a network as MSAU us used to bypass faulty unit. And sure it is not cost friendly and complex. These are the network topologies. If you have any suggestions or more simplified understanding then comment :) Connect with us : https://www.facebook.com/guycomputer Twitter :https://twitter.com/theguyscomputer Network topologies | Star Topology | Ring Topology | Bus Topology | Mess Topology | Hybrid Topology | Network | Computer Network Topology|
Views: 344543 The Guy's Computer
Internet of Things (IoT) Architecture for Beginners
 
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Internet of Things popularly known as IoT and its Architecture explained best for Beginners. The Internet of things (IoT) is the inter-networking of physical devices, vehicles (also referred to as "connected devices" and "smart devices"), buildings, and other items—embedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data.
Views: 229757 Hariharan
INTRODUCTION TO FIREWALLS FOR NETWORK SECURITY IN HINDI
 
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find relevant notes at-https://viden.io/
Views: 64744 LearnEveryone
What is Cellular Network | Hand Off Concepts
 
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Cellular network usage multiple transmitter to cover entire region. These transmitter can cover only a particular area which is known as cell. This video will discuss concepts of cellular network with hand off process.
Views: 101355 HowTo
Fun and Easy PCIE - How the PCI Express Protocol works
 
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Fun and easy PCIe - How the PCI Express protocol works • FREE PCB Design Course : http://bit.ly/FREEPCB_Design_Course • Full Microcontroller Course : http://bit.ly/Microcontroller_Course • Full Vivado Course : http://bit.ly/Vivado_YT • Full Zynq Course : http://bit.ly/Zynq_YT_Course PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X, and AGP bus standards. PCIe has numerous improvements over the older standards, including higher maximum system bus throughput, lower I/O pin count and smaller physical footprint, better performance scaling for bus devices, a more detailed error detection and reporting mechanism (Advanced Error Reporting, AER), and native hot-plug functionality. More recent revisions of the PCIe standard provide hardware support for I/O virtualization. To Learn more check the links down below: Windows 10 Course: https://www.udemy.com/the-complete-windows-10-c-course-and-build-2-apps/?couponCode=trump Arduino PCB Design Course in Altium Course: https://www.udemy.com/create-and-design-your-own-arduino-nano-in-altium-designer/?couponCode=trump LabVIEW Computer Vision Course: https://www.udemy.com/learn-computer-vision-machine-vision-and-image-processing-in-labview/?couponCode=trump Tiny Arduino PCB Design in Altium Circuitmaker https://www.udemy.com/pcb-design-a-tiny-arduino-in-altium-circuitmaker Xilinx Vivado Course https://www.udemy.com/learn-fpga-xilinx-vivado-design-suite-training-in-under-1-hour-vhdl/?couponCode=trump Xilinx Zynq Course https://www.udemy.com/zynq-training-learn-zynq-7000-soc-device-on-microzed-fpga/?couponCode=TRUMP2016 Facebook Dating Course: https://www.udemy.com/how-i-used-copy-and-paste-lines-to-attract-women-on-facebook/?couponCode=trump To learn more on FPGAs, Arduinos, PCB Design and Image Processing then Check out http://www.arduinostartups.com/ Please like and Subscribe for more videos :) -------------------------------------------------- Support us on Patreon http://bit.ly/PatreonArduinoStartups
Views: 47740 Augmented Startups
Internet of Things (IoT) Architecture | IoT Tutorial for Beginners | IoT Training | Edureka
 
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** Edureka IoT Training : https://www.edureka.co/iot-certification-training ** This "IoT Architecture" video will explain different layers of IoT architecture & the complete architecture of an IoT solution. This IoT Architecture video covers the following topics: 1. Introduction to IoT 2. Basic IoT Architecture 3. 5 Layer IoT Architecture 4. Cloud Computing in IoT 5. Fog Computing in IoT 6. IoT Taxonomy 7. Perception Layer 8. Pre-processing Layer 9. Communication Layer 10. Middleware Layer 11. Application Layer Subscribe to our Edureka channel to get video updates. Hit the subscribe button above: https://goo.gl/6ohpTV #edureka #iotedureka #iotprojects #internetofthingsapplications #iottutorial #iotexplained #whatisiot #iot #iottutorial #internetofthings #iotonlinetraining #iotforbeginners -------------------------- About our IoT Training IoT Certification Training is designed by industry experts to make you a Certified IoT Developer. Edureka IoT training covers: Understanding of IoT architecture and IoT Decision Framework Configure Raspberry Pi, Understand Sensors, Actuators & get started with python on Raspberry Pi Program Sensors (Sense-HAT board), Face Detection and reorganization using OpenCV-Python Understand various IoT Networking Protocols which are mainly used to develop communication solutions Getting started with Cloud and Azure IoT Hub, demonstration of Azure IoT Hub APIs Architect an End-to-End Solution using Raspberry Pi, Sense HAT, and Azure Perform Data Analytics on the collected sensor data, use prediction algorithms to get useful insights IoT challenges, business solutions, research scope and current development, Alexa Voice Bot on Raspberry Pi -------------------------- Who should go for this IoT Training? This IoT Certification Training on Azure is for all the professionals who are passionate about work with IoT devices and want to go ahead and make their career as an IoT Developer. It is best suited for individuals who are: Software Developers who are venturing into IoT space Solution Architects Technical Architects Students who seek IoT knowledge Business Executives and Managers who want to understand the essentials of IoT ------------------- Why Learn IoT? Internet of Things is considered as the next big technology revolution after invention of the Internet. It is supposed to make tremendous impacts on lives and may possibly lead to the betterment of millions of lives throughout the world. According to Cisco, over 50 million devices are expected to be connected to IoT by 2020. Healthcare, Logistics, Aviation, Education, Information Technology name any thing and IoT will become an integral part of all these verticals. Internet of Things is believed to bring about the singularity which will ultimately converge into becoming the Internet of Everything. IoT has, therefore, become a leading interest of technologists globally and is perceived to be the NEXT BIG THING in IT industry. Learning IoT will not only provide you a career boost but you will also be able to gain insights on how technology has affected the world and will continue to do so in the coming decades. For more information, Please write back to us at [email protected] or call us at IND: 9606058406 / US: 18338555775 (toll-free). Instagram: https://www.instagram.com/edureka_learning/ Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka Customer Review: Michael Harkins, System Architect, Hortonworks says: “The courses are top rate. The best part is live instruction, with playback. But my favourite feature is viewing a previous class. Also, they are always there to answer questions, and prompt when you open an issue if you are having any trouble. Added bonus ~ you get lifetime access to the course you took!!! ~ This is the killer education app... I've taken two courses, and I'm taking two more.”
Views: 22894 edureka!
Network Security - Basic Concepts Definitions & Types of Attacks
 
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This is a introductory video to a domain of Information technology that is Network security. Definition of Network Security: Network security is protection of the access to files, directories and information in a computer network against hacking, misuse and unauthorized changes to the system. In this video tutorial the basics of Network security, some definitions, terms and concepts. We've also covered some types of attacks that take place when Network security is not implemented properly. If you like the video give it a thumbs up and also share it with your friends. Do subscribe to our channel as you will get notified when we upload new video tutorials. If you have any suggestions or tips for us do post them in the comments section below we'll be happy to apply them for you. Peace Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets on Facebook- https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram- https://www.instagram.com/simplesnipp... Simple Snippets Google Plus Page- https://plus.google.com/+SimpleSnippets Simple Snippets email ID- [email protected] For Classroom Coaching in Mumbai for Programming & other IT/CS Subjects Checkout UpSkill Infotech - https://upskill.tech/ UpSkill is an Ed-Tech Company / Coaching Centre for Information Technology / Computer Science oriented courses and offer coacing for various Degree courses like BSc.IT, BSc.CS, BCA, MSc.IT, MSc.CS, MCA etc. Contact via email /call / FB /Whatsapp for more info email - [email protected] We also Provide Certification courses like - Android Development Web Development Java Developer Course .NET Developer Course Check us out on Social media platforms like Facebook, Instagram, Google etc Facebook page - https://www.facebook.com/upskillinfotech/ Insta page - https://www.instagram.com/upskill_infotech/ Google Maps - https://goo.gl/maps/vjNtZazLzW82
Views: 143504 Simple Snippets
What is DHCP in Hindi - DHCP Basics Video 1
 
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डीएचसीपी DHCP Tutorial in hindi Jagvinder Thind explains DHCP (Dynamic Host Configuration Protocol) Concepts in Hindi. DHCP Tutorial in Hindi
Views: 264786 JagvinderThind
Five Fundamentals of RF You Must Know for WLAN Success
 
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Understand the basics of RF so that you can better design and implement WLANs. This is a foundations level webinar and is great for CWTS and CWNA candidates and anyone newer to Wi-Fi.
Views: 154175 CWNPTV
The 7 Principles of the Industrial IoT
 
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Watch the full talk of Hewlett Packard Enterprise's Dr. Tom Bradicich, GM & VP, Servers & IoT Systems. He is presenting "The 7 Principles of the Industrial IoT" at Bosch ConnectedWorld Chicago 2016. For further information you should also visit our Blog http://blog.bosch-si.com LinkedIn Profile https://www.linkedin.com/company/1667788 Twitter Channel https://twitter.com/boschsi Website https://www.bosch-si.com
Firewall Introduction Architecture, Characteristics of Good Firewall, Limitations of Firewall
 
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Firewall Introduction - Architecture, Characteristics of Good Firewall, Limitations of Firewall Keywords: Firewall Limitations of Firewall Firewall Characteristics Firewall Architecture Network Security Notes
Hub, Switch or Router? Network Devices Explained
 
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Hubs, switches and routers are devices that allow us to create networks and connect those networks to one another. We explain how they work and what their individual differences are. Here's a list of the sections in this video and their time codes: 00:10 The hub 01:37 The switch 03:44 The router 04:55 A comparison
Views: 1065393 PieterExplainsTech

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