What is Sysiq and how is it different from reading static blogs?

Sysiq is an interactive system design platform where you don't just read about distributed systems — you actively build and test them. Solve real-world engineering challenges using a live diagram canvas, guided architectural labs, and real-time napkin math estimation tools.

Is Sysiq suitable for preparing for FAANG system design interviews?

Yes. Sysiq is tailored specifically for mid-level, senior, and staff engineering interviews (L4–L7). The problem bank covers actual interview scenarios: URL shorteners, distributed rate limiters, key-value stores, video streaming architectures, and real-time chat systems.

Can I use Sysiq for free?

Yes. Foundational modules, introductory interview problems, the Napkin Math calculator, and the global engineering leaderboard are all free with no time limit.

Do I need prior distributed systems experience to get started?

Not at all. The curriculum starts with fundamental building blocks — DNS, reverse proxies, database replication, and caching — and progressively walks you up to complex architectures like Raft consensus, vector clocks, and LSM-tree compaction.

What is a Modular Monolith?

A modular monolith enforces strict domain boundaries inside a single codebase, allowing seamless future extraction into microservices if needed.

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Monolithic Architecture vs Microservices

Single codebase & unified deployment vs decoupled services & independent scaling.

Launch Interactive System Simulator

Monolith

Interactive Lab

A single unified application codebase containing all business logic, deployed as one unit.

Key Advantages

Simple deployment & local development
Zero network latency between components
Easy cross-domain transactional integrity

Trade-offs

Scales as a single unit (expensive compute)
Coupled codebases risk cascading failures

BEST FOR WORKLOAD

Early-stage startups, MVPs, small team sizes (<20 engineers)

Microservices

Interactive Lab

A collection of small, independently deployable services organized around business capabilities.

Key Advantages

Independent scaling & deployment per domain
Polyglot tech stack selection
Isolated fault domains

Trade-offs

Distributed network complexity & latency
Complex data consistency (Sagas/Eventual consistency)

BEST FOR WORKLOAD

Large engineering organizations with multiple autonomous teams

Architectural Decision Matrix

Vector	Monolith	Microservices
Deployment	Single artifact deployment	Independent multi-service deployments
Data Storage	Single database shared across domains	Database-per-service pattern

Summary & Architectural Recommendation

Always start with a clean modular monolith unless organizational scale demands independent service ownership.

Frequently Asked Questions

Monolithic Architecture vs Microservices

Monolith

Key Advantages

Trade-offs

Microservices

Key Advantages

Trade-offs

Architectural Decision Matrix

Summary & Architectural Recommendation

Frequently Asked Questions

What is a Modular Monolith?

Related Architectural Comparisons

REST APIs vs gRPC: Inter-Service Communication

CQRS vs Event Sourcing: Pattern Comparison

Monolithic Architecture vs Microservices

Monolith

Key Advantages

Trade-offs

Microservices

Key Advantages

Trade-offs

Architectural Decision Matrix

Summary & Architectural Recommendation

Frequently Asked Questions

What is a Modular Monolith?

Related Architectural Comparisons

REST APIs vs gRPC: Inter-Service Communication

CQRS vs Event Sourcing: Pattern Comparison