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System Design Objective Questions and Answers

Test your skills with Java system design objective questions with answers and detailed explanations. Covers scalable Java architectures, Spring Boot microservices, concurrency, caching, messaging, reactive systems, resiliency patterns, cloud-native design, observability, and performance tuning.

This Java System Design quiz contains carefully curated objective questions with correct answers and clear explanations. It is designed for backend engineers, platform engineers, and architects to test your skills across scalable Java architectures, distributed systems, concurrency models, resiliency patterns, cloud-native deployments, and modern performance trade-offs.

Practice System Design MCQs with Detailed Explanations

Answer at least 12 questions to submit.

31.
Which approach best handles partial failures in Java service orchestration?
High
32.
Which practice improves resiliency for downstream timeouts in Java HTTP clients?
Medium
33.
Which storage strategy improves write amplification for log-structured workloads?
High
34.
Which approach improves cache consistency for write-heavy Java services?
High
35.
Which metric best indicates saturation in Java thread pools?
Medium
36.
Which approach best isolates noisy neighbors in multi-tenant Java platforms?
High
37.
Which design reduces coupling between synchronous Java APIs and slow dependencies?
Medium
38.
Which pattern improves idempotency for HTTP POST in Java APIs?
High
39.
Which approach reduces hot-spotting in sharded Java data stores?
High
40.
Which JVM feature helps profile production latency without heavy overhead?
High
41.
Which design best supports rolling back a faulty Java release quickly?
Medium
42.
Which approach improves fairness under heavy contention in Java locks?
High
43.
Which design reduces cross-service coupling for shared domain events in Java platforms?
High
44.
Which approach best mitigates retry storms in Java clients under partial outages?
High
45.
Which architectural choice improves scalability for read-heavy leaderboards in Java backends?
High
Answered: 0 / 15

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