Ruby Concurrency for Senior Engineering Interviews

Course Overview

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 ... See More

How You'll Learn

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Course Contents

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1. The Basics

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

2. API Overview

Creating Threads

... continued

Sleeping and Terminating Threads

Exception Handling in Threads

Thread Variables

Mutex

...continued

Condition Variables

... continued

... continued

Monitor

... continued

Global Interpreter Lock

Quiz 1

Quiz 2

Quiz 3

Quiz 4

3. Brief Intro to Asynchronous Programming

Introduction

... continued

Fiber

... continued

... continued

4. Interview Practice Problems

Implementing Semaphore

Blocking Queue | Bounded Buffer | Consumer Producer

... continued

... 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

5. Bonus Questions

Ordered Printing

Printing Number Series (Zero, Even, Odd)

Printing FooBar n Times

Build a Molecule

Fizz Buzz Problem

6. Epilogue

Acknowledgements