Preparing for a CS Interview, Straight from a Channel Talk Interviewer: Database Edition

A Channel Talk interviewer breaks down the difference between failing and passing answers to the same question and prepares you for real-world follow-up questions.

An analysis of 27 commonly asked distributed systems interview questions with Channel Talk interviewers! Learn about everything from server scaling to sharding, replication, and consistency through diagrams, and prepare for system design interviews with sample answers and a post service design case study.

A course that helps you understand core database concepts and trains you to explain them verbally in interviews.

"I have a backend technical interview in a week. What should I start with?" The secret to answers that make interviewers nod Master the actual answer patterns of successful applicants to Naver, Kakao, Coupang, and Toss in just 3 days!

This is a course for learning MS-SQL through baseball and corporate databases.

A comprehensive course covering AI-era-proof Silicon Valley internships, 30 big-tech system designs, and hands-on open-source contributions. Using real-world cases from Netflix, Tesla, Meta, Tinder, and other big tech companies, you’ll design and scale 30 practical system designs. Finally, you’ll design your own service from architecture to database to scaling.

Systematically learn the distributed NoSQL database Cassandra, from basic concepts to practical application. Develop high-volume data processing capabilities through practice-oriented theory and hands-on exercises, including data modeling, query optimization, and cluster configuration. Even without prior database experience, you can grow into a Cassandra expert based on the know-how of a current Silicon Valley developer.

We answer 46 interview questions on indexes, execution plans, transactions, locks, replication, and failure handling from the interviewer’s perspective. Compare bad answers with good ones, and each question includes a hands-on verification exercise using MySQL 8.4 so you can answer follow-up questions by saying, “I checked it myself.”

SQL data analysis! We will teach you how to solve practical problems that are applicable in the field, quickly and easily!

This course teaches you how to build a practical Unity game with a database. It covers difficult-to-access topics in an easy-to-follow lecture format.

✅ Among the series of (1) to (7), (1) Changes in the role of computers, hierarchical structure, abstraction, PC structure ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

Through this course, students will learn the overall concepts and flow of databases and operating systems.

✅ Out of the entire series (1) ~ (7), (5) operating system, user interface, database ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

A must-have subject for aspiring developers and those looking to get a job in big data!!

For learners struggling with large-scale data analysis and slow queries, I provide practical, hands-on guidance from design through tuning.

This lecture is expected to help students build a foundation in computer architecture.

A course where you can understand core data structure concepts and train to explain them verbally for interviews.

I have created a course titled 'Introduction to Redis/Practical Application (Query Performance Optimization Edition)' that is easy for non-majors to understand and can be applied immediately in practice!

A course that helps you understand core concepts of computer architecture and trains you to explain them verbally in interviews.

By implementing various practical data analysis cases using SQL, you can simultaneously improve your data analysis and SQL utilization skills.