Key Concepts in Networking and Programming Languages

Domain Controller (DC)

A server in a Windows network responsible for authenticating users, managing permissions, and maintaining a centralized directory of network resources, users, and computers.

Silicone Chip

Forms circuits for functions like logic, memory & sensors & its also a tiny piece of silicone w/ etched electronic components & also created through precise processes like lithography & etching, basis of devices like phones and computers.

How to identify a SAN with syslog?

Configure SAN devices for centralized logging and analyze incoming syslog messages.

XaaS

A service level that best fits a corporate client with several remote sites developing and managing secure yet high-profile products, where time-to-market strategies and business processes are key drivers.

React

A tool that describes an aspect of a front-end technology stack.

DDR5

A DIMM technology that can be used in a quad-channel configuration.

PaaS

A cloud service model that allows a client to use computing resources, to test applications, and to release the computing resources afterward.

Type-1 VM

A type of hypervisor shown in the graphic, with OS, OS, Hypervisor, System in that exact order.

How to identify operating systems in PCs

Controls the hardware components and other peripherals while also acting as an interface between the user and the hardware.

Advantages of developing software on different OSs

Compatibility testing, Access to different tools/libraries, and Better user experience.

Disadvantages of developing software on different OSs

Increased development time/cost, Platform-specific bugs, Difficulty in maintaining multiple codebases.

JavaScript

Free, popular, versatile, powerful enough to support complex apps (e.g. Google, Facebook).

Python

Popular, clean and simple syntax, beginner friendly, handles multithreading, great for cross-platform apps used on multiple OSs and devices (e.g. Reddit, Uber).

Ruby

Dynamic, reflective, general-purpose OOP language.

Java

Object oriented, can be used on server and client side applications, requires compiler into Objective-C to be used on iPhones.

SQL

Great for effective app development, plays huge role in storing data efficiently and effectively. Used by every major mobile platform.

Kotlin

Alternative to Java, popular for Android developers, providing a simpler and cleaner way to write code.

Dart

Open-source, scalable, flexible language for native app development. Great for building custom apps.

Prefetch

Indicates that the resource is being requested in anticipation that it will be needed.

OS services

Program execution, I/O operations, file system manipulation, communication, error detection, resource allocation, protection.

System call groups

Process control, file management, communication, protection, information maintenance, device management.

Multiplexing

A way of sending multiple signals or streams of information over a communications link at the same time in the form of a single, complex signal.

Object Oriented Programming (OOP)

A computer programming model that organizes software design around data, or objects, rather than functions and logic.