Network Protocols: Physical & Data Link Layer Essentials
Physical Layer Protocols
1. Slower Wireless Network Performance
What is a reason for slower network performance on a wireless network?
- The performance is based on the distance from a Wireless Access Point (WAP). The further, the weaker.
- This can mean less bandwidth or no wireless connection.
2. Data Flow Process from Source to Destination Node
Explain in detail each step of the process that data undergoes from a source node to a destination node.
- The user data is segmented by the transport layer, placed
Building Construction Vocabulary: Framing Essentials
Chapter 15: Floor Framing Terms
Content Vocabulary
- Girder
- The girder supports the floor joists by carrying the weight of the structure above it.
- Box sill
- A box sill is constructed by placing the sill plate on the foundation and attaching the band joist.
- Subflooring
- The subflooring is secured to the joists to provide a stable base for the finished flooring.
- Crown
- The crown of a joist should always be positioned upward to account for deflection over time.
- Bridging
- Bridging between floor joists prevents twisting
Control Systems, Actuators, and Automation Technologies
Understanding Control Circuits
Control circuits represent a significant family of electrical circuits. A circuit is a technological device where information is input to produce an output response. These circuits are broadly classified into two main categories:
- Open-chain circuits (linear control)
- Feedback control circuits (for adjustment)
Sensors and Actuators in Control Systems
Sensors and detectors are positioned at the input stage of a control device, while actuators (or working bodies) operate at
Read MoreMechanical Devices: Levers, Gears, Cams & Motion Systems
What Are Mechanical Mechanisms?
A mechanism is simply a device that takes an input motion and force and outputs a different motion and force. The purpose of a mechanism is to make a task easier to perform. The most commonly used mechanisms in mechanical systems include:
- Levers
- Linkages
- Cams
- Gears
- Pulleys
Understanding Levers
It’s important to understand how to calculate mechanical advantage obtained by using levers, the velocity ratio in levers and pulley systems, and the input and output speed when using
Read MoreUnderstanding Diodes, Transistors, and Number Systems
Basics of Diodes
- A diode is a two-terminal electronic component that allows current to flow in one direction only. It is formed by a p-n junction, where p-type and n-type semiconductors are joined together.
- When a forward bias is applied to the diode (positive terminal to p-type and negative terminal to n-type), the junction barrier is reduced, allowing current to flow.
- When a reverse bias is applied (positive terminal to n-type and negative terminal to p-type), the junction barrier is increased, preventing
Fundamental Electronic Circuits and Components
Understanding Electronic Circuits and Components
Electronic circuits involve components designed to modify electric current. This document covers fundamental concepts, devices, and their principles of operation in electronics.
Resistors: Controlling Current Flow
Resistors are components that impede the flow of electrons. This opposition to current flow helps protect other parts of a circuit from damage due to excessive current. Resistance is measured in Ohms (Ω).
- Ammeter: An instrument used to measure