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Ruby Concurrency for Senior Engineering Interviews

The ultimate guide to Ruby concurrency interviews. Developed by FAANG engineers, this course covers Monitors, Deferred Callbacks and problem-solving strategies for Reader-Writer and Dining Philosopher Problems.

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Overview

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Concurrency in Ruby is one of the most complex and advanced topics brought up during senior engineering interviews. Knowledge of concurrency and multithreading can put interviewees at a considerable advantage. This course lays the foundations of advanced concurrency and multithreading and explains concepts such as Monitors and Deferred Callbacks in depth. It also builds simple and complete solutions to popular concurrency problems that can be asked about in interviews like the Reader-Writer Problem and the Dining Philosopher Problem. While prior knowledge of concurrency is not required to follow through with this course, familiarity with the basics of Ruby would be helpful.

Concurrency in Ruby is one of the most complex and advanced topics brought up during senior engineering interviews. Knowledge of...Show More

Content

58 Lessons20 Quizzes

The Basics

15 Lessons

Sharpen your skills in understanding concurrency, threads, synchronization, and key programming concepts.

Introduction

Program vs Process vs Thread

Concurrency vs Parallelism

Cooperative Multitasking vs Preemptive Multitasking

Synchronous vs Asynchronous

I/O Bound vs CPU Bound

Throughput vs Latency

Critical Sections & Race Conditions

Deadlocks, Liveness & Reentrant Locks

Mutex vs Semaphore

Mutex vs Monitor

Hoare vs Mesa Monitors

Semaphore vs Monitor

Amdahl's Law

Moore’s Law

API Overview

17 Lessons

Unpack the core of Ruby's threading models, synchronization mechanisms, exception handling, and GIL.

Creating Threads

... continued

Sleeping and Terminating Threads

Exception Handling in Threads

Global Interpreter Lock

Brief Intro to Asynchronous Programming

5 Lessons

Examine concurrency, fibers, and asynchronous programming, enhancing web server performance and resource management.

Interview Practice Problems

15 Lessons

Apply your skills to tackle concurrency problems and ensure efficient multi-threaded synchronization.

Implementing Semaphore

Blocking Queue | Bounded Buffer | Consumer Producer

... continued

Rate Limiting Using Token Bucket Filter

Thread Safe Deferred Callback

ReadWrite Lock

Unisex Bathroom Problem

Implementing a Barrier

Uber Ride Problem

Dining Philosophers

Barber Shop

Asynchronous to Synchronous Problem

Multithreaded Merge Sort

Thread-safe Singleton

Bonus Questions

5 Lessons

Solve problems in Ruby concurrency with ordered printing, number series, FooBar, molecule building, and FizzBuzz tasks.

Ordered Printing

Printing Number Series (Zero, Even, Odd)

Printing FooBar n Times

Build a Molecule

Fizz Buzz Problem

Epilogue

1 Lessons

Investigate ongoing self-improvement and teamwork's role in mastering senior engineering interviews.

Acknowledgements

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

C. H. Afzal

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

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Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

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