Essential Concepts in Information Technology and Digital Business
Core IT Fundamentals
Triple Convergence in IT
Content, devices, and sectors.
Information System Functions
- Obtain
- Process
- Store
- Distribute
Network Protocols and Addressing
Key Network Protocols Explained
- How to connect different devices? IP Protocol
- How to manage the exchange of information? TCP Protocol
- How to provide services? TCP/IP Protocol
- How to surf the Net? HTTP, HTML, etc.
IP Address Functions
IP addresses serve two principal functions:
- Host or network interface identification
- Location addressing
Software
Read MoreStructure of the Telephone User Network
Sections of the User Network
The user network is divided into three main parts: the main network, the distribution network, and the dispersion network.
The user network encompasses the path from the central plant’s main distribution point until the connection reaches the user’s telephone equipment. These stages are:
- Outdoor Line: This section covers the path from the central terminal to the distribution box. This connection typically uses high-capacity cables. The outdoor line is further divided into
Maximizing Efficiency in Energy Transformation Processes
The Fundamentals of Energy Conversion Processes
Energy conversion processes consist of transforming the energy available in fuels or natural sources into useful forms such as electricity, heat, or mechanical power. All power plants—whether steam, gas, nuclear, or renewable—base their operation on energy transfers between different stages. Each of these transformations is limited by thermodynamic laws that determine the maximum achievable efficiency.
Classical Thermal Power Generation Systems
In
Read MoreMicrosoft Fabric Configuration and Optimization Solutions
Fabric Tenant and Workspace Management
Scenario: You have a Fabric tenant that contains a workspace.
- User Capabilities: User1 can connect to DW1 via the Azure SQL Analytics endpoint.
- XMLA Read-Write Access: To ensure read-write access to DS1 via the XMLA endpoint, you must first modify the C1 settings.
- Fabric Admin Portal Recommendations:
- From the Tenant settings, set Allow XMLA to Enabled.
- From the Capacity settings, set XMLA to Read Write.
- From the Tenant settings, ensure the relevant feature is set
Mastering SQL Queries and Core Database Concepts
Fundamental SQL Retrieval Examples
Basic Selection and Filtering
List full details of all hotels
SELECT * FROM Hotel;List full details of all hotels in London
SELECT * FROM Hotel WHERE city = 'London';List names and addresses of all guests in London
Alphabetically ordered by name. Strictly speaking, using
LIKE '%London%'might also find rows with an address like: ’10 London Avenue, New York’.SELECT guestName, guestAddress FROM Guest WHERE address LIKE '%London%' ORDER BY guestName;List double or family
Essential Definitions of Mechanical and Pneumatic Components
Four-Stroke Engine Operation
The four-stroke engine operates through four distinct stages:
- Intake: Air enters the cylinder, mixing with atomized fuel.
- Compression: The air and fuel mixture is compressed by the upward movement of the piston.
- Power (Combustion): The burning fuel forces the piston downward with great force, producing useful work.
- Exhaust: The upward movement of the piston cleans the cylinder by expelling spent gases.
Two-Stroke Engine Mechanics
Two-stroke engines are piston engines where
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