easySystem Design
Credential Ledger Quorum
Evaluate credential-ledger quorum availability and overlap.
Practice challengeCodeArena challenge library
12 challenges match your filters.
easySystem Design
Application Store Quorum
Evaluate application-store read/write quorums.
Practice challengemediumSystem Design
Progress Store Quorum
Assess learning-progress quorum behavior.
Practice challengehardSystem Design
Order Ledger Quorum
Evaluate order-ledger quorum guarantees.
Practice challengeeasySystem Design
Learner Shard Assignment
Assign a learner key to a stable shard.
Practice challengeeasySystem Design
Institution Shard Assignment
Map an institution key to a data shard.
Practice challengemediumSystem Design
Submission Shard Assignment
Assign a submission key deterministically.
Practice challengehardSystem Design
Tenant Shard Assignment
Map a tenant key using the documented hash rule.
Practice challengeeasySystem Design
Exam Traffic Capacity
Estimate required instances for peak exam traffic.
Practice challengeeasySystem Design
Code Runner Capacity
Estimate runner-control-plane instance capacity.
Practice challengemediumSystem Design
Application Deadline Capacity
Size services for an admissions deadline spike.
Practice challengehardSystem Design
Marketplace Campaign Capacity
Estimate instances for campaign peak load.
Practice challenge