IBM A1000-005 Practice Exam 2025: Latest Questions

An enterprise is adopting SOA and wants to ensure consumers are insulated from frequent changes to back-end applications. Which SOA principle best addresses this requirement?

A team is designing a new service and wants to define what the service does and how clients should call it, without exposing internal implementation details. What artifact best captures this in SOA?

An integration architect needs to ensure that if a message cannot be processed, it is isolated for later analysis and does not repeatedly fail and block processing of other messages. Which integration pattern best fits?

A company wants to control who can publish or modify services in the enterprise service registry and ensure changes are reviewed before becoming visible to consumers. Which governance mechanism best supports this goal?

A service currently exposes separate operations for creating, updating, and partially updating a customer profile. Consumers frequently misuse the partial update operation, causing inconsistent data. What is the best design improvement?

A composite business process invokes three services. The first two succeed, but the third fails after a long-running external approval step. The business requires the overall process to return to a consistent state. What is the most appropriate approach?

A service is reused by multiple business units. Each unit demands slightly different data formats, and the provider keeps changing the service interface to satisfy them. This is causing frequent consumer breakages. What is the best practice to address this?

Operations reports that a shared service is intermittently slow. The service team claims their code is fine, but there is no consistent way to trace requests across the ESB, service, and downstream systems. What is the best next step?

A provider must evolve a widely used service by changing message structure in a way that is not backward compatible. Many consumers cannot migrate immediately, but governance requires a controlled transition and minimal disruption. Which approach is most appropriate?

An ESB flow transforms messages between a canonical enterprise schema and multiple provider-specific schemas. After a schema change, some fields are silently dropped, causing downstream reconciliation errors. What is the best architectural and implementation remedy?

A team is decomposing a legacy application into services. Stakeholders complain that proposed services are tightly coupled to specific UI screens and cannot be reused. Which change most directly aligns the design with SOA principles?

An enterprise wants to standardize how services describe themselves so consumers can discover capabilities and understand how to call them without direct developer support. Which artifact best supports this goal?

A consumer reports intermittent timeouts when calling a downstream payment service. Operations confirms the payment service is healthy but sometimes slow. Which design improvement most directly increases resilience without changing the payment service?

A company exposes an Order service to multiple internal teams. Recently, a change to one response field caused several consumers to break. Which approach is the best practice to reduce consumer disruption while still evolving the service?

An integration flow must ensure that events are delivered at least once to a subscriber, but duplicate deliveries may occur due to retries. Which consumer-side technique is most appropriate to prevent duplicate processing?

A program manager wants a consistent way to ensure services comply with enterprise standards (security, logging, naming, SLAs) before being published for reuse. Which governance mechanism best addresses this requirement?

A company has multiple systems that represent customer data differently. A new composite service must orchestrate these systems and present a unified customer view. Which approach best reduces coupling and shields consumers from underlying model differences?

A service owner wants to publish a new service to an enterprise catalog. The catalog requires metadata that improves discoverability and safe reuse. Which metadata set is most essential?

A global retailer uses an ESB to mediate between many services. During peak traffic, the ESB becomes a bottleneck because multiple flows perform CPU-intensive transformations and orchestration centrally. Which architectural change is most likely to reduce the bottleneck while maintaining integration consistency?

A regulated enterprise must prove that only authorized consumers can invoke specific service operations and that access decisions are centrally controlled and auditable. Which design best satisfies this requirement?

A retailer is decomposing a monolithic application into services. Two candidate services both need "Customer Profile" data, and the team is debating whether to share a single database schema between them to speed delivery. What is the BEST practice aligned with SOA architecture principles?

A team is designing a Payment Authorization service. Multiple consumers (web, mobile, and partner APIs) will call it, and consumers are frequently updated. Which approach BEST reduces consumer/provider coupling over time?

An order-processing flow invokes three downstream services. In production, intermittent duplicate orders appear when the network briefly drops and the caller retries. Logs show the "CreateOrder" operation is executed twice for the same client request. What design change is MOST appropriate to prevent duplicates while still allowing retries?

An enterprise is experiencing "service sprawl"—many overlapping services with similar capabilities, inconsistent contracts, and unclear ownership. Which governance mechanism BEST addresses this problem at scale?

A composite business process calls multiple services. A downstream inventory service sometimes responds slowly, causing thread exhaustion and cascading failures across the platform. Which combination of integration techniques is MOST effective to improve resilience while keeping overall throughput stable?