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 SLI measures request latency at the 99th percentile. An SLO sets the target at 300ms. What does 'good event' mean in this SLI?

Any request that completes in under 300ms, A good event is defined by the SLI, which in this case is latency under the threshold. A request that returns 200 but takes 800ms is a bad event because it exceeded the 300ms target.

A team uses a single 5-minute window alert on error rate. What is the most likely problem they will face?

The alert fires on every deployment and the team starts ignoring it, Short single-window alerts are too sensitive. Deploys cause brief error spikes that trigger the alert. Teams either raise the threshold (missing real incidents) or ignore alerts entirely. Multi-window burn rate solves this by requiring both short and long windows to trip.

Why should a monthly SLO target be set tighter than the SLA contractual promise?

So internal alerts fire before the contractual commitment is breached, The SLO acts as an early warning buffer. If the SLA promises 99.5% and the SLO targets 99.9%, the team gets alerted and takes action long before customers are owed contractual credits. Google recommends at least a 2x buffer.

What does a 14.4x burn rate mean for a monthly error budget?

The budget will be exhausted in about 2 days at this rate, Burn rate is a multiplier against sustainable consumption. A 30-day budget consumed at 14.4x the normal rate lasts roughly 30/14.4 = 2.08 days. This severity pages on-call immediately because the budget is draining fast.

SLO Engineering

Name: System Design Masterclass
Availability: InStock

in Reliability Resilience

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“The interactive diagrams alone are worth way more than the price.”

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