From AI as is: A sound wave represents changes in pressure in a medium—usually air—as the sound travels. In air, molecules vibrate back and forth, creating alternating regions of: So when you see a sound-wave graph, the vertical axis usually represents pressure variation or signal amplitude, while the horizontal axis represents time or distance. A …
Category: Root
Sep 10
Network Devices, VLANs, Subnets, Layer 2 and Layer 3 Switches, and Routers
Network Devices, VLANs, Subnets, Layer 2 and Layer 3 Switches, and Routers From AI tools as IS. Modern computer networks are built from several different kinds of devices and several different kinds of logical boundaries. This can become confusing because terms such as switch, router, VLAN, subnet, LAN, Layer 2, and Layer 3 are closely …
Sep 10
Voice Networks and Data Networks: From Analog Telephone Circuits to Modern IP Communication
Voice Networks and Data Networks: From Analog Telephone Circuits to Modern IP Communication From AI tools as IS. For much of the history of telecommunications, a voice network and a data network were genuinely different kinds of networks. Telephone networks were built primarily to carry human conversations. Computer networks were built primarily to exchange data …
Sep 09
Understanding the Electromagnetic Spectrum, Radio Frequencies, and Wi-Fi
Understanding the Electromagnetic Spectrum, Radio Frequencies, and Wi-Fi Ref: AI Tools as is When we talk about Wi-Fi, cellular networks, radio, Bluetooth, satellite communication, infrared, visible light, X-rays, or gamma rays, we are talking about different parts of the same broad phenomenon: the electromagnetic spectrum. The main difference between these forms of electromagnetic radiation is …
Jul 14
Scrum master vs Product owner
Both are Scrum accountabilities, but they focus on different things. Product Owner Scrum Master Focuses on what should be built Focuses on how the team works effectively Maximizes product value Improves Scrum effectiveness Manages and orders the Product Backlog Coaches the team in Scrum and Agile practices Clarifies user stories and acceptance criteria Facilitates events …
Jul 14
Scrum versus Kanban at scale
Yes—basic Scrum is primarily a team-level framework. Scrum Scrum explains how one cross-functional team manages work through: Scrum itself gives only limited detail about coordinating many teams. Multiple Scrum teams can work on the same product, but they normally need additional coordination arrangements, such as: Kanban Kanban can be used at several levels: For example, …
Jul 14
LPM — Lean Portfolio Management
LPM — Lean Portfolio Management Lean Portfolio Management is the SAFe approach for connecting an organization’s strategy and funding to the work performed by value streams and Agile Release Trains. Team level asks: What stories should we complete?ART level asks: What features should the teams deliver during the PI?Portfolio level asks: Which major initiatives should …
Jul 14
Story points: Fibonacci, Poker, Agile
Story points Story points estimate the relative size of a user story. They consider: Story points do not directly mean hours or days. A 5-point story is expected to be larger or more uncertain than a 3-point story, but it does not necessarily take exactly five hours or five days. Fibonacci scale use the Fibonacci-style …
Jul 13
How to Prioritize all the stories using MoSCoW
• Prioritize all the stories using MoSCoW You assign every user story one of four MoSCoW priorities and then arrange the Jira backlog from highest to lowest priority. Priority Meaning Guiding question Must Have Essential for the feature or first usable release Will the feature fail or become unusable without this story? Should Have Important, …
Jul 13
ValidateNotNullOrEmpty
[ValidateNotNullOrEmpty()] is a PowerShell parameter-validation attribute. It rejects values that are: Example: Valid call: Output: Invalid empty value: Invalid null value: Why combine it with Mandatory? requires the parameter to be supplied. requires the supplied value to contain something. They are commonly used together: Array example Call: Important limitation A string containing only spaces is …
