#Solace

Question count -     Last updated    - V4 (02-Sep-2025)

Level Subtopic Topics Basic Solace Fundamentals Messaging Concepts, PubSub+ Overview, Event Broker Basics, Point-to-Point, Publish/Subscribe Core Architecture Message VPN, Queues, Topics, Direct Messaging, Persistent Messaging Messaging Models Point-to-Point, Publish-Subscribe, Request-Reply, Fanout, Hierarchical Topics Core APIs Solace Java API, JMS API, MQTT, AMQP, REST Messaging Basic Administration CLI Basics, PubSub+ Manager, Message VPN Setup, Queue Creation, Topic Subscription Message Types Direct Message, Guaranteed Message, Binary Payload, Text Payload, Map Payload Connectivity Options TCP, WebSocket, HTTP/REST, AMQP, MQTT Basic Security Authentication, Client Username, Password, Client Profile, ACL Profiles Monitoring Fundamentals CLI Monitoring, PubSub+ Manager Dashboard, Stats, Message Rate, Connection Status Getting Started Use Cases Event Notification, IoT Messaging, Logging, Simple Request-Reply, Microservices Communication Intermediate Guaranteed Messaging Queue Configuration, Persistence, Message Spooling, Dead Message Queue (DMQ), Message Redelivery Session & Flow Management Sessions, Flows, Window Sizes, Ack Handling, Replay Strategies Advanced Topic Routing Topic Hierarchies, Wildcards, Subscription Matching, Dynamic Subscriptions, Filtering Transactions Local Transactions, XA Transactions, JMS Transactions, Commit & Rollback, Redelivery Handling Solace APIs Deep Dive Solace JMS, Solace Java, Solace .NET, Solace Node.js, Solace Python Security (Intermediate) TLS Setup, Client Certificates, Role-based Access, VPN-level Security, Audit Logs Replay & Persistence Message Replay, Time-based Replay, Sequence Replay, Store & Forward, Use Cases HA Basics Primary-Backup-PMonitor Model, Redundancy Groups, Failover, Config Sync, Warm Standby Monitoring & Alerts Event Logs, Alarms, Syslog Integration, SNMP Monitoring, Alerts Setup Integration Basics Solace + JMS, Solace + Spring, Solace + Kafka Connector, Solace + MuleSoft, Solace + Boomi Advanced Solace Event Mesh Concept of Event Mesh, Multi-Region Brokers, Topic Routing Across Regions, Cloud-Native Deployment, Event Distribution Scaling & Performance Horizontal Scaling, Vertical Scaling, Load Balancing, Message Throttling, Tuning Advanced Security OAuth 2.0 Integration, SAML, LDAP Integration, Client Authentication Strategies, Token-based Security Cloud & Hybrid Deployment PubSub+ Cloud, Hybrid Model, Multi-Cloud Event Mesh, AWS/Azure/GCP Integration, Containerized Solace Advanced Monitoring SEMP API, Prometheus Integration, Grafana Dashboards, OpenTelemetry, Tracing Streaming & Replay Solace Replay Service, Kafka-style Replay, Hybrid Streaming, Consumer Replay APIs, Use Cases Multi-Protocol Bridging Bridging MQTT ↔ AMQP, REST ↔ JMS, Kafka ↔ Solace, Cross-protocol Routing, Event Translation Solace with Microservices Event-driven Microservices, Async API (OpenAPI + Solace), Choreography, Saga Pattern, Reactive Integration Performance Optimization Window Sizing, Flow Control, Consumer Scaling, Guaranteed Delivery Optimization, High-throughput Tuning Testing & Debugging CLI Debugging, API Tracing, Replay Testing, Fault Injection, End-to-End Tests Expert Enterprise Event Architecture Event Mesh Governance, Domain-driven Event Design, Event Taxonomy, Canonical Topics, Event Contracts Global HA & DR Multi-Region HA, Disaster Recovery, Failover Testing, Replicated Data Centers, Latency Considerations Observability & Tracing Distributed Tracing, End-to-End Correlation, OpenTelemetry Advanced, Service Mesh Integration, Event Replay Debugging Event-driven Integration Solace + SAP, Solace + Salesforce, Solace + ServiceNow, Solace + Databricks, Solace + Snowflake Regulatory & Compliance GDPR, PCI-DSS, HIPAA in Messaging, Data Retention, Audit Trails Solace Internals Broker Internals, Core Persistence Engine, Message Routing Engine, Subscription Matching Engine, HA Synchronization Cross-Domain Event Mesh Multi-business Unit Event Mesh, Cross-Region Routing, Partner Integrations, API Gateways, Legacy System Integration Advanced Cloud-Native Patterns Kubernetes Operators, Solace on OpenShift, Service Mesh (Istio/Linkerd), Knative Eventing, Cloud-Native Security Modern Architectures Event Sourcing with Solace, CQRS, Solace + Kafka Hybrid, Solace + GraphQL Subscriptions, Reactive Streams Future Trends Event Mesh Evolution, Solace in AI/ML Workflows, Real-time Analytics, IoT at Scale, Event Marketplace

1. Solace Fundamentals & Architecture

1. What is Solace PubSub+ and how does it differ from traditional messaging systems?
2. Explain the role of a Message VPN in Solace.
3. What are the key messaging patterns supported by Solace?
4. Differentiate between direct messaging and guaranteed messaging in Solace.
5. What is a Queue in Solace and how does it differ from a Topic?
6. Explain how publish/subscribe works in Solace.
7. What is a Client Profile and how is it used?
8. Define Dead Message Queue (DMQ) in Solace.
9. Explain how message persistence is achieved in Solace.
10. What is a Durable Subscription?
11. What is the difference between exclusive and non-exclusive queues?
12. Explain Topic Hierarchies in Solace.
13. How do wildcards work in Solace topic subscriptions?
14. Define replay in Solace messaging.
15. What are Solace event brokers and what types are available?
16. Explain the role of Solace APIs (JMS, Java, REST, MQTT, AMQP).
17. What is the difference between PubSub+ Broker and PubSub+ Cloud?
18. Explain Request-Reply messaging in Solace.
19. How does Solace support IoT use cases?
20. What are Message Properties and how are they used?
21. Define Fanout messaging pattern in Solace.
22. What are the maximum limits for connections, queues, and topics in Solace?
23. How does Solace handle message priority?
24. Explain how messages are acknowledged in Solace.
25. What is a Solace flow and why is it important?

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2. Guaranteed Messaging & Reliability

1. What is guaranteed messaging in Solace and how does it work?
2. How does Solace ensure message delivery during broker failure?
3. Explain how message spooling works in Solace.
4. What is a Replay Queue and when is it used?
5. How does Solace handle message redelivery?
6. What are Ack Modes in Solace JMS and Solace Java APIs?
7. Explain exactly-once delivery (EoD) in Solace.
8. What is message TTL and how is it enforced?
9. What is the difference between persistent and non-persistent messages?
10. Explain the use of Solace Dead Message Queue (DMQ).
11. What is flow control and why is it important?
12. How does Solace prevent duplicate messages?
13. What happens when a queue is full in Solace?
14. How can you configure message replay in Solace?
15. Explain XA transactions in Solace JMS.
16. How does Solace support distributed transactions?
17. What is the role of window size in guaranteed messaging?
18. How does Solace handle poison messages?
19. How do you implement retries in Solace?
20. Explain how guaranteed message ordering is maintained.
21. What is a non-persistent queue and when is it used?
22. What are Active and Passive flows in Solace?
23. Explain Solace Store and Forward mechanism.
24. How does Solace support transaction rollbacks?
25. What strategies exist for replaying messages in Solace?

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3. Security & Access Control

1. How does Solace handle client authentication?
2. Explain how to configure TLS in Solace PubSub+.
3. What is the difference between Client Profiles and ACL Profiles?
4. How does Solace enforce topic-level security?
5. Explain OAuth 2.0 integration with Solace.
6. How does LDAP integrate with Solace for authentication?
7. What are the common roles in Solace security model?
8. What is a Client Certificate and how is it configured?
9. How does Solace support encryption in transit?
10. What is role-based access control (RBAC) in Solace?
11. Explain how to restrict clients from publishing to certain topics.
12. How are audit logs used in Solace security monitoring?
13. What is SAML integration in Solace?
14. How does Solace ensure secure cross-VPN messaging?
15. What are trusted root certificates in Solace configuration?
16. Explain token-based authentication in Solace.
17. What are the steps to enable message-level encryption in Solace?
18. How does Solace prevent denial-of-service (DoS) attacks?
19. What is a secure session in Solace?
20. Explain how ACL rules work in Solace.
21. What are the limitations of Solace security in PubSub+ Cloud?
22. How can you configure per-client rate limiting in Solace?
23. What is TLS mutual authentication?
24. How do you secure REST messaging in Solace?
25. Explain best practices for securing Solace in a hybrid cloud environment.

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4. High Availability (HA) & Disaster Recovery (DR)

1. What is the HA architecture of Solace?
2. Explain primary-standby monitoring in Solace HA.
3. What are redundancy groups in Solace?
4. How does message failover work in Solace?
5. What is warm standby in Solace HA?
6. What is the difference between HA and DR in Solace?
7. How do you configure Solace HA in production?
8. How does replication work between brokers?
9. Explain Solace multi-zone deployment.
10. What are fault domains in Solace?
11. What is the failover recovery time in Solace HA?
12. How does Solace ensure zero message loss in HA?
13. Explain state synchronization in Solace HA.
14. How does Solace support multi-region HA?
15. What is an Active-Active deployment in Solace?
16. Explain Solace?s role in business continuity planning.
17. What is split-brain problem in Solace HA?
18. How do you test HA failover in Solace?
19. What are Solace HA monitoring tools?
20. Explain DR strategies with Solace across data centers.
21. How do you configure disaster recovery queues?
22. What is message replication service (MRS) in Solace?
23. How does latency affect HA and DR configurations?
24. What are challenges in multi-cloud HA with Solace?
25. What are the best practices for Solace HA/DR architecture?

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5. APIs, Protocols & Integration

1. What APIs does Solace provide for developers?
2. How does Solace JMS differ from Solace Java API?
3. Explain REST messaging with Solace.
4. How does Solace support MQTT?
5. Explain Solace AMQP integration.
6. What is the difference between synchronous and asynchronous messaging in Solace APIs?
7. How does Solace integrate with Spring Boot?
8. What are Solace connectors and when are they used?
9. Explain how Solace integrates with Apache Kafka.
10. How does Solace support MuleSoft and Boomi integration?
11. What is the role of AsyncAPI with Solace?
12. How does Solace support Node.js and Python clients?
13. What are the differences between Solace Cloud APIs and On-Prem APIs?
14. Explain Solace PubSub+ Event Portal.
15. How do you integrate Solace with ServiceNow?
16. Explain how Solace supports Salesforce integration.
17. What is the Solace connector for Databricks?
18. How does Solace integrate with Snowflake?
19. What is multi-protocol bridging in Solace?
20. How do Solace APIs handle back pressure?
21. What are Solace REST delivery points (RDPs)?
22. Explain Kafka Connectors for Solace.
23. How does Solace integrate with Kubernetes and OpenShift?
24. What role does Solace play in microservice architectures?
25. What are some real-world use cases of Solace API integrations?

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6. Monitoring, Management & Observability

1. What is Solace PubSub+ Manager?
2. Explain Solace CLI usage for monitoring.
3. What are common Solace monitoring KPIs?
4. How does Solace log events and alerts?
5. What is SEMP API in Solace?
6. How does Solace integrate with Prometheus?
7. Explain Grafana dashboards for Solace.
8. How does Solace integrate with OpenTelemetry?
9. What is Solace message tracing?
10. Explain how to monitor HA health in Solace.
11. How do you monitor message rates and throughput?
12. What are client connection metrics in Solace?
13. Explain Syslog integration with Solace.
14. How do you set up alarms in Solace?
15. What is the role of Event Logs in Solace monitoring?
16. How do you troubleshoot latency issues in Solace?
17. What is the difference between proactive and reactive monitoring in Solace?
18. How does Solace integrate with Splunk?
19. Explain how to use SEMPv2 for monitoring.
20. What is fine-grained monitoring in Solace?
21. How do you perform root cause analysis using Solace metrics?
22. What are broker-level monitoring options?
23. How do you test replay performance in Solace?
24. What are monitoring best practices for Solace PubSub+?
25. Explain end-to-end observability with Solace.

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7. Advanced Use Cases & Architectures

1. What is an Event Mesh and how does Solace support it?
2. Explain Event-Driven Architecture (EDA) with Solace.
3. What is Domain-Driven Event Design?
4. How do you implement Event Taxonomy in Solace?
5. What is Event Sourcing with Solace?
6. Explain CQRS pattern using Solace.
7. How does Solace support Saga pattern in microservices?
8. What is Hybrid Cloud Event Mesh with Solace?
9. How does Solace integrate with AI/ML workflows?
10. Explain IoT at scale with Solace messaging.
11. What are regulatory compliance considerations for Solace messaging?
12. How does Solace support GDPR and HIPAA compliance?
13. What is multi-cloud event routing in Solace?
14. Explain service mesh integration with Solace.
15. How does Solace enable real-time analytics?
16. What are Event Contracts and why are they important?
17. Explain Event Marketplace with Solace.
18. What is advanced event replay across regions?
19. How does Solace integrate with API Gateways?
20. What are the challenges of designing enterprise-scale Event Mesh?
21. How does Solace complement Apache Kafka?
22. What is the difference between Solace Event Mesh and Kafka Clusters?
23. How do you use AsyncAPI with Solace for design-first EDA?
24. What future trends are shaping Solace Event Mesh adoption?
25. Give an example of a real-world enterprise event-driven system using Solace.

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