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Q. GoldenGate supports replication between?
Q. Which parameter file defines OGG process behavior?
Q. What happens if Replicat abends?
Q. Which process receives trail files on the target server?
Q. Which OGG command shows process status?
Q. What is the use of the COLMAP clause in OGG?
Q. Which mode allows bidirectional replication?
Q. What is a checkpoint in GoldenGate?
Q. GoldenGate uses which database mechanism to capture changes in Oracle?
Q. Which GoldenGate component starts and stops all processes?
Q. What is the purpose of the Pump process?
Q. Which file contains captured transactions before sending to target?
Q. What is the role of the Replicat process in OGG?
Q. Which GoldenGate process reads the database transaction logs?
Q. What is the primary purpose of Oracle GoldenGate?
Q. Why is GoldenGate used in microservices architecture?
Q. Trail files keep growing and disk is full. What should be done?
Q. You need zero data loss during failover. What configuration is best?
Q. What is checkpointing in GoldenGate?
Q. GoldenGate Manager process is down. What happens?
Q. In payment systems, duplicate transaction must be avoided. Which GoldenGate feature helps?
Q. A company wants Oracle to MySQL replication. Is GoldenGate suitable?
Q. Replication stopped due to large transactions filling memory. Which configuration helps?
Q. You want to replicate only selected tables instead of the entire database. What should you configure?
Q. Which GoldenGate component transfers trail files across servers?
Q. In railway reservation systems, reporting queries slow down the main database. How can GoldenGate help?
Q. GoldenGate Replicat process abended due to a missing table on target. What is the solution?
Q. After cutover, users are redirected to the target system. What must be done with replication?
Q. During migration, target database contains old data plus replicated changes. What is this phase called?
Q. A DBA wants to reduce load on the production database while capturing changes. Why is GoldenGate suitable?
Q. GoldenGate replication delay is increasing. Which metric should you monitor?
Q. In bidirectional replication, the same record is updating repeatedly in both databases. What is the issue?
Q. An Extract process is running but Replicat is not applying changes. What should you check first?
Q. In a banking system, data must remain available even if the primary data center fails. Which GoldenGate setup is appropriate?
Q. You are migrating a production Oracle database to a new server with near-zero downtime. Which GoldenGate feature allows users to continue working during migration?
Q. GoldenGate is best suited for:
Q. GoldenGate works without:
Q. GoldenGate latency means:
Q. Which process transfers trail files to target system?
Q. GoldenGate can be used in cloud for:
Q. Which type of replication copies data to reporting server?
Q. GoldenGate reduces downtime during migration by:
Q. What does Replicat read?
Q. GoldenGate architecture is:
Q. Which replication mode allows two-way data replication?
Q. GoldenGate is commonly used for:
Q. What is Change Data Capture (CDC)?
Q. GoldenGate supports:
Q. GoldenGate trail files are:
Q. What is the function of the Manager process?
Q. Which component applies changes to the target database?
Q. Which component captures changes from the source database?
Q. Which technique is used by GoldenGate to capture data changes?
Q. Oracle GoldenGate primarily works on:
Q. What is Oracle GoldenGate?
Q. Gateway helps hide:
Q. Which feature helps reduce latency for clients?
Q. Gateway can perform authentication using:
Q. Which configuration enables service discovery routing?
Q. Spring Cloud Gateway can act as:
Q. Which HTTP status indicates rate limit exceeded?
Q. Gateway can forward request to service using:
Q. What does RewritePath filter do?
Q. Which predicate routes based on query parameter?
Q. Which predicate matches request headers?
Q. Gateway can modify response using:
Q. What is the purpose of CircuitBreaker filter?
Q. Which feature allows monitoring gateway health?
Q. Spring Cloud Gateway supports which security integration?
Q. What is a global filter?
Q. Which filter retries failed requests?
Q. Which filter removes part of URL path?
Q. Which predicate matches host name?
Q. Which predicate matches HTTP request method?
Q. What is a predicate in Spring Cloud Gateway?
Q. Gateway communicates with services typically via:
Q. What is the benefit of a single entry point?
Q. Gateway supports load balancing using:
Q. Which configuration file commonly defines routes?
Q. Gateway can also perform:
Q. What is a route in Spring Cloud Gateway?
Q. Gateway helps improve security by:
Q. Which port commonly runs a gateway service?
Q. Spring Cloud Gateway replaces which older Netflix component?
Q. Gateway routes requests based on:
Q. Which filter is used to add headers?
Q. What is rate limiting in API Gateway?
Q. Which predicate is used to match URL path?
Q. Spring Cloud Gateway can integrate with which service discovery?
Q. Which feature allows modifying requests and responses?
Q. Spring Cloud Gateway supports which type of programming model?
Q. What is the primary function of an API Gateway?
Q. Which dependency is required for Spring Cloud Gateway?
Q. Spring Cloud Gateway is built on:
Q. What is Spring Cloud Gateway?
Q. What type of communication is Feign best suited for?
Q. Feign is an alternative to:
Q. Feign can also call services using:
Q. What does 'name' attribute in @FeignClient represent?
Q. Feign client helps achieve:
Q. What happens if the target service is down and no fallback is defined?
Q. Which annotation sends object data in POST request?
Q. Which annotation passes a variable in URL path?
Q. Feign client interfaces are implemented by:
Q. Which library is commonly used for Feign fault tolerance?
Q. What is a fallback method in Feign?
Q. Which load balancer does Feign use with Spring Cloud?
Q. Feign Client reduces the need for:
Q. Which annotation maps HTTP GET request in Feign?
Q. Feign Client works with which service discovery tool?
Q. Feign Client primarily communicates using:
Q. Which annotation is used to define a Feign interface?
Q. Which annotation enables Feign Clients in a Spring Boot application?
Q. Which dependency is required for Feign Client?
Q. What is Feign Client in Spring Boot microservices?
Q. What is registry caching in Eureka client?
Q. Which dependency registers a service as Eureka client?
Q. Which dependency is required to create a Eureka server?
Q. Can multiple instances of the same service register in Eureka?
Q. What is the purpose of spring.application.name in Eureka client?
Q. Which communication is used between services discovered by Eureka?
Q. Eureka server dashboard is accessible at:
Q. What is self-preservation mode in Eureka?
Q. Which load balancer works with Eureka in Spring Cloud?
Q. Which property sets the Eureka server URL in client configuration?
Q. What happens if a service stops sending heartbeats?
Q. How does Eureka detect if a service is alive?
Q. What information does a service register with Eureka?
Q. What is the default Eureka Server port?
Q. Which annotation registers a service as a Eureka client?
Q. Which annotation enables Eureka Server in Spring Boot?
Q. What does a Eureka client do?
Q. Eureka follows which architecture pattern?
Q. Which company developed Eureka?
Q. What is Eureka in microservices?
Q. Which tool is commonly used for CI/CD pipelines in microservices?
Q. Which testing type verifies interaction between services?
Q. What is canary release?
Q. What is blue-green deployment?
Q. Which database is commonly used in microservices for flexibility?
Q. What is a stateless service?
Q. Which gateway is commonly used in Spring Cloud?
Q. Which pattern helps combine multiple service responses into one?
Q. What is API versioning used for?
Q. What does container orchestration handle?
Q. Which stack is used for centralized logging?
Q. What is the purpose of centralized logging?
Q. Which server is commonly embedded in Spring Boot microservices?
Q. Which of the following is a client-side load balancer?
Q. What is the role of load balancing in microservices?
Q. Which tool is commonly used for centralized configuration in microservices?
Q. Which pattern is used instead of distributed transactions in microservices?
Q. What is a distributed transaction in microservices?
Q. Which of the following is a challenge in microservices?
Q. What is the main advantage of microservices over monolithic architecture?
Q. What type of communication does Kafka support?
Q. Which company popularized microservices architecture?
Q. Independent deployment means:
Q. Which messaging broker is popular with microservices?
Q. What is the role of an API Gateway?
Q. Which pattern prevents cascading failures in microservices?
Q. Microservices architecture promotes:
Q. Which technology manages containers in production?
Q. Which tool is used for service discovery?
Q. What is service discovery in microservices?
Q. Which tool is commonly used for containerizing microservices?
Q. Which component routes client requests to appropriate microservices?
Q. Each microservice should ideally have:
Q. Which protocol is most commonly used for communication between microservices?
Q. What is a microservice architecture?