Rules About Networks
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This document discusses two network models: centralized networks like the former "Ma Bell" system and decentralized networks like the modern Internet. It notes pros and cons of each, including stable services but lack of flexibility for centralized networks, and easy adaptation but lack of guarantees for decentralized networks. It advises paying attention to life cycles of different network elements and protocols, and acknowledges that elements you want to control may eventually become obstacles that are hard to change. It suggests ways to protect networks like redundancy, firewalls, and backups to help navigate uncontrollable elements.
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The IoT For Real
(Beyond simplistic thinking and models)
This lecture is one of a series ‘Grand Challenge Subjects’ designed to make students think beyond, and challenge, the status quo; to question what they have been taught and the established industry wisdoms; to look beyond the tech media and journal papers; to think, be original, and be creative in the widest sense. This all culminates in a design and build/project program spread over several weeks.
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Mobile Network coverage is sadly lacking @ <90% by geography
Mobile Device batteries and charging are major limitations
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Mobile Nets consume ~ 10%
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Most IoT devices will talk to each other and never connect to the internet
IoT devices will require a range of bandwidths and not just low bit rates
The majority of IoT devices will communicate over very short distance
Our current wireless architectures are outmoded by the IoT
We will most likely need something beyond UWB
The power per IoT device has to be <<1mW
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You decide-ScenarioScenario SummaryLeonard Cooper Charte.docx
You decide:-
Scenario
Scenario Summary
Leonard Cooper Charter School is a K-12 school with approximately 1,000 students. The school wants to develop a local area network that meets the needs of the school now and is scalable for the future. There have been numerous complaints about the speed and reliability of the network, especially since a new addition to the building was added a few years back.
Your Role and Assignment
You are the systems administrator contracted by Leonard Cooper to upgrade the local area network to meet the ever-increasing needs of the building's students and faculty members. Your first task is to interview key stakeholders to determine what the key areas of concern are.
Activity
The charter school's CEO has requested your help in updating the network to meet the demands of the building's faculty members and students. Your job is to interview the key stakeholders and to take action to remedy the issues that they have.
· Write a two to three page proposal addressing each of the stakeholder concerns. Use the technologies below for the areas of concern. All of the technologies listed below will not be used, so be careful with your choices. You must use one of the solutions below to address each area of concern. Be specific in your responses, and justify the use of each technology based upon the concern.
Category 2 UTP 10Base - T Ethernet Cabling
Category 5 UTP 100Base - T Ethernet Cabling
Category 6 UTP 1000Base - T Ethernet Cabling
Server Farm
File Server
Print Server
8 port hub
16 port hub
24 port hub
8 port switch
16 port switch
24 port switch
Storage area network
RAID
Fiber 1000Based-F
Domain controllers
Bus topology
Topology
Microwave wireless media
Infrared wireless media
Radio wireless media
KEY PLAYERS
Helen Ross, Network Technician, Female
Back to Top
"I don't know who designed our old network or what they were thinking. You see, my job is to support the faculty in the building and to fix minor network issues. Well, we often have major issues in our building, and I'm hoping that you can make things better. Printing is a really problematic area for us. You see, we have over 50 networked printers in this building. Although we do need the printers, we need some way to consolidate the management of print jobs, as the queues on these printers often are filled. We also need to navigate to each printer individually to clear them. There has to be a better way because this is ridiculous. Collisions have become a problem for us as well since we started to add new computers a few years ago. In the morning when everyone gets in, network performance slows to a crawl because everyone is busy on the network with their morning attendance and checking e-mail. After performing a network analysis, I figured out that there were way too many collisions on the network. There has to be a way to fix this."
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Back to Top
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Everything I found interesting about the Elixir programming ecosystem in May 2024
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
GraphSummit Singapore | Enhancing Changi Airport Group's Passenger Experience...
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Essentials of Automations: The Art of Triggers and Actions in FME
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Uni Systems Copilot event_05062024_C.Vlachos.pdf
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
National Security Agency - NSA mobile device best practices
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
UiPath Test Automation using UiPath Test Suite series, part 5
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Epistemic Interaction - tuning interfaces to provide information for AI support
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
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UiPath Test Automation using UiPath Test Suite series, part 4
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
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What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdf
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
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FIDO Alliance Osaka Seminar: The WebAuthn API and Discoverable Credentials.pdf
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Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
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GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
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Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
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Rules About Networks
- 2. There are only two network models
- 3. Ma Bell
- 4. … or the Internet
- 9. No one can afford to become Ma Bell again.
- 10. Not These Guys
- 11. Or These Guys
- 12. Or These Guys
- 13. Or These Guys
- 14. So what are the odds you will?
- 15. No one can afford to become a network dictator again.
- 16. Networking: Yin and Yang Stuff you control Stuff someone else controls
- 17. God, grant me the serenity to accept the network elements I cannot change; the courage to change the network elements I can; and the wisdom to know the difference.
- 18. Grasshopper: you must learn the paradox of internetworking. Which is…?
- 19. Not changing things enables you to change things. Huh?
- 20. It’s True! Just Look at the Internet!
- 21. TCP/IP Protocol Stack Changes Often Rarely Changes
- 22. So what things should I try not to change too much?
- 23. Q: What element did both the Internet and Ma Bell control?
- 24. Q: What element did both the Internet and Ma Bell control? A: Addressing. Jon Postel, Original Internet Assigned Numbers Authority (IANA) North American Numbering Plan (NANP)
- 25. What Else?
- 26. A: Pay Attention to Life Cycles. Computers: 2-3 years
- 27. A: Pay Attention to Life Cycles. Operating Systems: 3-5 years
- 28. A: Pay Attention to Life Cycles. Network Protocols: 7-10 years
- 29. A: Pay Attention to Life Cycles. Data Formats: 10+ years
- 30. There is a name for network elements that don’t change quickly:
- 32. Unlike in global warming, however, this almost never gets smaller.
- 33. The only reason God could create the world in six days was because He didn't have to worry about the installed base .* * Enzo Torresi, Einar Stefferud, Esther Dyson, or someone else
- 34. Unfortunately, often today’s hot new technology …. Becomes that junky old stuff that drags down the whole installed base. 1999 2008
- 35. A: Inevitable.
- 36. Q: What is the likelihood the stuff you want to control eventually becomes your biggest obstacle?
- 37. But what about the things I can’t control?
- 38. How do you protect yourself against reckless drivers?
- 39. Buckle up. Keep alert. Obey signs. Buy insurance. Have airbags. Have bumpers. Yeah, Buckle up.
- 41. Can I steer a safe passage through these perils?
- 42. Do I look like Albert Freakin’ Einstein?
- 43. Stuff is out of control all over my network. … and I’m OK with that. Find Your Own Networking Bliss