No more 'Question - Answer - Read-through' explanations! We explain all the knowledge related to how to solve AWS SAA certification exam questions!

For the sole purpose of passing the exam, we have summarized and organized the key contents of each exam area to prepare for the AWS (AWS Certified Solutions Architect-Associate) certification.

This course will teach you how to compose in Jetpack. You will learn the core ideas of compose, how to manage state using compose, and how to compose screens.

This course will teach you how to use authentication, database, storage, and FCM provided by Google Firebase. In particular, FCM is a core service of Firebase used by most apps for server push.

This course will teach you about networking, data persistence, and location utilization, which are essential for Android apps. These three features are implemented so frequently that it is hard to find an app that does not utilize them.

This course will teach you how Android components work and how to use them. The core components of Android apps are components. If you develop apps without a proper understanding of components, there will be more than one or two areas where you will get stuck.

This course will teach you the Jetpack library's views for creating various screens for real-world apps. The screens of real-world apps are diverse and complex, so they cannot be developed using only platform APIs.

This course covers the basics of Android app development. No matter what app you develop or what features you implement, you cannot develop without understanding the content of this course.

Through this lecture, I hope to understand the core of the Kotlin language and avoid the mistake of being blocked by the language when developing Android apps.

Through this course, you can understand Android features and set up a development environment to take your first step as an Android app developer.

You can learn the skills and know-how needed to improve work efficiency by utilizing Open API and Python.

This course is a direct lecture by the author based on the book "Python Quick Start - Python for Work - Ruby Paper (2023/04)". This course is a course to learn the basics and usage of Python, which is known to be easy to learn, so that even non-majors can use programming in real life or work. You will learn Python programming methods through real business cases rather than grammar-centered ones, and you will be able to increase the efficiency and reliability of your work by automating various business processes including HR and finance.

This course aims to acquire Python-based web crawling technology to collect data from web pages and improve data collection and analysis capabilities at work based on this.

This course teaches you how to analyze and visualize data using pandas, Python's powerful data analysis library.

Leveraging Python's basic syntax and popular libraries Auto-generating Python syntax and library code using ChatGPT

Through this lecture, even non-majors can fully understand the concepts and operating principles of the ORM module, which is the core of Spring.

This course will enable even non-majors to develop and operate Spring MVC-based web applications.

Through this lecture, even non-majors can fully understand the concepts and operating principles of the MVC module, which is the core of Spring.

Through this lecture, even non-majors can fully understand the concept and operating principles of AOP (Aspect Oriented Programming), a core module of Spring.

Through this lecture, even non-IT majors can fully understand the concept and operating principles of IoC (Inversion of Control), the most core module of Spring.

We introduce a DevOps lecture based on practical cases experienced directly on the front lines of Silicon Valley. This lecture does not just stop at theory, but covers CI/CD related tools in an EKS environment that can be applied directly in the actual engineering field.

Through this course, you will experience application deployment automation. While deploying a project, you will also learn how to use Jenkins and gain basic knowledge about CI/CD!

Learn from the beginning how to set up a development environment that even an ordinary office worker can easily understand. It is practice-oriented and focuses on students learning various development tools such as Vim, VS Code, Git, Docker, and remote development. You can learn how to build an efficient development environment by learning step-by-step from the basic usage of each development tool to advanced functions.

I've created an 'Introduction to MSA' course that even non-majors can easily understand and apply directly in real-world situations!

It explains almost everything surrounding the cloud in an easy-to-understand manner. If you listen to it before the actual practice, you will be able to understand development or infrastructure cloud well.

You can learn about IAM, the foundation of AWS Zero Trust, from the basics to the details. This will help you understand what parts are actually vulnerable and where you need to pay more attention.

I've created a 'Linux Introduction' course that even non-majors can easily understand and apply immediately in real-world situations!

Learn cloud infrastructure automation technology using AWS and Terraform, and practice efficient infrastructure management and deployment. Manage AWS resources as code through Terraform, and learn how to deploy consistent infrastructure across various environments.

Regardless of the field! This is a lecture that covers the core fundamentals that developers must know in practice in an easy + code-oriented way. I highly recommend this lecture to all junior developers and job seekers who want to grow.

What is DevSecOps? Configure a CI build environment and an environment that automatically performs SAST checks during build

This course is designed to help you quickly learn server zero-downtime deployment methods using Nginx, Docker, and Spring Boot through hands-on practice. Learn Blue-Green deployment, which is frequently used in real-world scenarios, faster than anyone else!

This course is designed for Developers, DevOps Engineers, Security Engineers, Freshers, QA, Infrastructure, Build & Release, IT, and InfoSec/AppSec professionals who want to learn and implement DevSecOps practices using real-world tools, technologies, and industry security best practices. You will gain hands-on experience integrating security across the entire Software Development Life Cycle (SDLC)—from architecture and code to infrastructure, pipelines, containers, and runtime environments. This course equips you with high-demand DevSecOps skills that can help you secure top-quality roles with higher compensation, similar to current market trends in DevOps, Cloud, and Cybersecurity. In today’s digital-first world, embedding security into engineering workflows is no longer optional—it is essential for business success. DevSecOps: Integrating Security into the SDLC Using Jenkins and Modern Tooling This course is ideal for individuals and teams who want to shift security left and build secure, scalable, and automated DevOps pipelines. You will learn how to: Integrate security principles, architecture, and organizational best practices into DevOps workflows Prevent accidental exposure of secrets, credentials, and sensitive data in source code repositories Secure Linux systems, virtual machines, and CI/CD build agents Identify, fix, and patch vulnerabilities in: Application dependencies Dockerfiles and container images Runtime application environments Secure Docker images, containers, and containerized workloads Secure Infrastructure as Code (Terraform) using policy and security scanning Harden and secure CI/CD pipelines against misconfigurations and attacks Perform security testing using: Threat Modeling Unit and Integration Tests Software Composition Analysis (SCA) Static Application Security Testing (SAST) Dynamic Application Security Testing (DAST) Automate security testing during build, test, and deployment, instead of relying on manual post-release testing Learning Experience Each concept is explained in a simple, visual, and structured manner: Slide-based conceptual explanations Followed by hands-on, real-world labs You will: Set up your own Linux VMs, security tools, and CI/CD pipelines using Jenkins Secure Docker images, containers, and infrastructure Work with a dedicated GitHub repository containing all code, configurations, and examples used in the course Why Enroll in This Course? ✅ One of the most practical, hands-on DevSecOps Bootcamps available online ✅ Learn DevSecOps, Cloud Security, and Application Security without expensive institutes or tutors (often costing $400–$4000) ✅ Self-paced learning with a comprehensive, up-to-date curriculum ✅ Clear understanding of the difference between traditional DevOps vs modern DevSecOps ✅ Learn how to embed security at every stage of the pipeline ✅ Automate security scanning early instead of fixing issues after production ✅ Hands-on experience with free and open-source security tools ✅ Industry insights referenced from Gartner reports on DevOps and Security collaboration By the End of the Course By the end of this course, you will have gained strong theoretical knowledge and extensive hands-on experience with DevSecOps tools, technologies, and practices. You will be confident in designing, building, and implementing secure DevOps or DevSecOps pipelines independently for real-world projects and organizations. You will also have access to a DevSecOps Quiz to test and validate your foundational knowledge in DevSecOps and SecOps. Goals Learning Experience Each concept is explained in a simple, visual, and structured manner: Slide-based conceptual explanations Followed by hands-on, real-world labs You will: Set up your own Linux VMs, security tools, and CI/CD pipelines using Jenkins Secure Docker images, containers, and infrastructure Work with a dedicated GitHub repository containing all code, configurations, and examples used in the course Prerequisites Basic knowledge of the following is helpful but not mandatory—everything is covered from scratch: DevOps & Jenkins Docker & Containers Linux, CLI & Shell Scripting Security fundamentals

I've created a cram course that will help you pass the AWS SAA-C03 (AWS Certified Solutions Architect - Associate) certification in just 2 weeks with only 163 questions!

What is DevSecOps? Configure a CI build environment and an environment that automatically performs SAST checks during build

In an era of explosive data growth and crucial real-time processing, edge computing has established itself as an essential technology, no longer an option. This course is designed to systematically teach everything, from the core concepts of edge computing to deployment strategies for its application in real business environments. Through this course, students will firmly solidify the fundamental principles of edge computing and acquire practical knowledge and know-how applicable to real-world tasks and projects. Take the most certain first step towards becoming an edge computing expert, a core technology in the future IT environment!