CMA Technology and Platform Analysis 2 — Questions and Answers
Question 1: Which cloud deployment model gives an organization exclusive use of infrastructure operated solely for that organization, either on-premises or hosted by a third party?
- Public cloud
- Private cloud (Correct answer)
- Hybrid cloud
- Community cloud
Correct answer: Private cloud
A private cloud is provisioned for exclusive use by a single organization, offering greater control and security.
Question 2: In enterprise architecture, what does a Technology Reference Model (TRM) primarily provide?
- A financial forecast for IT investments
- A taxonomy and vocabulary for technology components and standards (Correct answer)
- A step-by-step implementation roadmap
- A vendor selection checklist
Correct answer: A taxonomy and vocabulary for technology components and standards
A TRM provides a common taxonomy and vocabulary to describe and categorize technology components and standards used across the enterprise.
Question 3: Which architectural pattern routes all client requests through a single entry point that enforces cross-cutting concerns such as authentication, rate limiting, and logging?
- Service mesh
- API gateway (Correct answer)
- Message broker
- Load balancer
Correct answer: API gateway
An API gateway acts as the single entry point for client requests and handles cross-cutting concerns like authentication and rate limiting.
Question 4: When evaluating a NoSQL document store versus a relational database for a new platform, which factor most strongly favors the document store?
- Need for complex multi-table JOIN queries
- Need for ACID transactions across many rows
- Need to store semi-structured data with variable schemas (Correct answer)
- Need for strict referential integrity
Correct answer: Need to store semi-structured data with variable schemas
Document stores excel at handling semi-structured or schema-flexible data, which is their primary advantage over relational databases.
Question 5: A master architect is analyzing a legacy system that uses tight coupling between components. Which quality attribute is MOST negatively impacted by tight coupling?
- Performance
- Modifiability (Correct answer)
- Availability
- Security
Correct answer: Modifiability
Tight coupling reduces modifiability because changes to one component force cascading changes in dependent components.
Question 6: Which technology pattern enables multiple applications to react to the same event without the event producer knowing about the consumers?
- Request-response
- Event-driven architecture (Correct answer)
- Remote Procedure Call (RPC)
- Batch processing
Correct answer: Event-driven architecture
Event-driven architecture decouples producers from consumers, allowing multiple subscribers to react to events independently.
Question 7: During platform technology analysis, a CMA finds that a critical system has a Recovery Time Objective (RTO) of 4 hours. What does this mean?
- The system must back up data every 4 hours
- The system must be restored to operation within 4 hours of an outage (Correct answer)
- The system can tolerate 4 hours of data loss
- The system must achieve 99.999% uptime over 4 hours
Correct answer: The system must be restored to operation within 4 hours of an outage
RTO defines the maximum acceptable time to restore a system to normal operation after a disruption.
CMA Technology and Platform Analysis 2
Which cloud deployment model gives an organization exclusive use of infrastructure operated solely for that organization, either on-premises or hosted by a third party?