12.6: Part 1 - Caching: Speeding up database queries

12.3: Responsiveness part 2 - Where does the time go?

12.4: Part 1 -Continuous Integration & Continuous Deployment

12.3: Responsiveness part 1 - Service Level Objectives and Apdex

12.9: Defending Customer Data part 2: SQL Injection

12.9: Defending Customer Data part 1: SSL/TLS

12.11-12.12: DevOps Fallacies, Pitfalls, and Concluding Remarks

12.7: Don't Abuse the Database, part 1: Indices

12.9: Defending Customer Data part 3: Cross Site Request Forgery

12.7: Don't Abuse the Database, part 2 - N+1 query problem

12.6: Part 2 - Caching for speeding up rendering

12.6: Part 1 - Caching: Speeding up database queries

12.5: Monitoring

12.4: Part 2 - Upgrades & Feature Flags

12.4: Part 3 - Upgrades & Feature Flags, continued

Interlude: On My Bookshelf - Joel On Software

12.5: Monitoring - Demo

12.3: part 1 - Availability & Responsiveness - An Introduction

12.2: Three Tier Architecture

12.1: From Development to Deployment

Interlude: Floppy Disks (Armando's Computer History Minute); Software Engineering at Google

A Brief SOLID Review

11.2: Just Enough UML

11.3: Single Responsibility Principle

11.1: Patterns, Antipatterns, and SOLID Class Architecture