Is this a video course?

No. This is an interactive, slide-based learning platform. Each lesson has rich text, animated diagrams, live code editors, and quizzes. You learn by reading, interacting, and doing, not by watching videos passively.

How long do I have access?

Forever. Both pricing tiers are one-time payments with lifetime access. This includes all current 766 lessons and any future content we add.

What level of experience do I need?

None. We start from absolute basics like 'What is latency?' and build up to distributed consensus protocols. The Foundation level assumes zero prior knowledge of system design.

How much does the system design course cost?

7.99 US dollars for lifetime access globally, or 499 Indian rupees for lifetime access in India. One-time payment, no subscription, no hidden fees. 11 lessons are free with no signup required.

What technologies are covered?

Everything from DNS and load balancers to Kubernetes, Kafka, distributed databases, consensus protocols, stream processing, security architecture, and observability. We cover principles and real-world implementations used at Netflix, Google, Amazon, Uber, Stripe, and more.

Is this useful for system design interview preparation?

Yes. The lessons are structured around the exact topics asked in system design interviews at FAANG and top-tier companies. Interactive diagrams help you practice whiteboard-style explanations. Covers everything from URL shortener design to distributed payment systems.

How is this different from ByteByteGo or Educative?

766 interactive lessons (4x more than most competitors), 16 different diagram types that build step by step, real production examples from Netflix, Google, Amazon, Uber, and Stripe, and lifetime access for a one-time payment of $7.99 instead of annual subscriptions costing 100 to 200 dollars per year.

An aggregator groups alerts by service and region. A deploy breaks 40 nodes in checkout us-east-1. How many pages does the on-call engineer receive?

1 page for the logical incident, with 40 events attached, Aggregation collapses related raw events into one logical incident based on grouping keys. The engineer receives a single page. All 40 underlying events are preserved and visible in the incident detail view for forensics.

A dedupe cache has a 5-minute TTL. The same monitor fires at t=0, t=30s, t=2m, and t=7m. How many pages does the engineer receive?

2 pages: one at t=0, one at t=7m after the cache expires, The first fire at t=0 creates a dedupe entry with a 5-minute TTL. Fires at t=30s and t=2m hit the cache and are suppressed. The cache expires after 5 minutes of inactivity. The fire at t=7m finds no cache entry and creates a fresh incident, producing a second page.

What is the most common mistake when configuring aggregation grouping keys?

Grouping too broadly, merging unrelated incidents into one, Broad grouping (by team instead of by service) merges unrelated incidents. An engineer acks a database failure and never notices that a search cluster failed independently. Grouping by service plus region is the standard starting point.

Alert Aggregation

Name: System Design Masterclass
Availability: InStock

in Reliability Resilience

This lesson is part of the full System Design Masterclass. Unlock it along with 765 other lessons for a one-time payment.

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