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MuleSoft MCPA-Level-1-Maintenance 考試大綱：

主題	簡介
主題 1	Define and describe the benefits of API-led connectivity and application networks Explain MuleSoft’s proposal for closing the IT delivery gap
主題 2	Governing APIs on Anypoint Platform Select appropriate API policies to enforce non-functional constraints on API invocations
主題 3	Identify single points of failure in typical CloudHub usage Identify the components of Anypoint Platform that generate data for monitoring and alerting
主題 4	Identify changes to an API that would require or not require a major version increment Explain how to register an API client for access to an API version
主題 5	Identify when redeployment of API implementations is necessary Compare unit and integration tests and specify where MUnit is best employed
主題 6	Identify KPIs to measure the success of a C4E Select Anypoint Platform identity management vs client management for the correct purpose
主題 7	Select CloudHub worker sizes and configuration as appropriate Specify how and when to promote APIs with API Manager
主題 8	Break down functional requirements into business-aligned APIs with effective granularity Identify idempotent HTTP methods and HTTP-native support for optimistic concurrency
主題 9	Describe the purpose and roles of a Center for Enablement (C4E) Describe the capabilities and high-level components of Anypoint Platform
主題 10	Identify the factors involved in scaling API performance Select strategies that help API clients guard against failures in API invocations

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最新的 MuleSoft Certified Platform Architect MCPA-Level-1-Maintenance 免費考試真題 (Q47-Q52):

問題 #47
Which layer in the API-led connectivity focuses on unlocking key systems, legacy systems, data sources etc and exposes the functionality?

• A. System Layer
• B. Experience Layer
• C. Process Layer

答案：A 解題說明：
System Layer

The APIs used in an API-led approach to connectivity fall into three categories:
System APIs - these usually access the core systems of record and provide a means of insulating the user from the complexity or any changes to the underlying systems. Once built, many users, can access data without any need to learn the underlying systems and can reuse these APIs in multiple projects.
Process APIs - These APIs interact with and shape data within a single system or across systems (breaking down data silos) and are created here without a dependence on the source systems from which that data originates, as well as the target channels through which that data is delivered.
Experience APIs - Experience APIs are the means by which data can be reconfigured so that it is most easily consumed by its intended audience, all from a common data source, rather than setting up separate point-to-point integrations for each channel. An Experience API is usually created with API-first design principles where the API is designed for the specific user experience in mind.
問題 #48
What is a typical result of using a fine-grained rather than a coarse-grained API deployment model to implement a given business process?

• A. A better response time for the end user as a result of the APIs being smaller in scope and complexity
• B. A decrease in the number of connections within the application network supporting the business process
• C. A higher number of discoverable API-related assets in the application network
• D. An overall tower usage of resources because each fine-grained API consumes less resources

答案：C 解題說明：
A higher number of discoverable API-related assets in the application network.
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>> We do NOT get faster response times in fine-grained approach when compared to coarse-grained approach.
>> In fact, we get faster response times from a network having coarse-grained APIs compared to a network having fine-grained APIs model. The reasons are below.
Fine-grained approach:
1. will have more APIs compared to coarse-grained
2. So, more orchestration needs to be done to achieve a functionality in business process.
3. Which means, lots of API calls to be made. So, more connections will needs to be established. So, obviously more hops, more network i/o, more number of integration points compared to coarse-grained approach where fewer APIs with bulk functionality embedded in them.
4. That is why, because of all these extra hops and added latencies, fine-grained approach will have bit more response times compared to coarse-grained.
5. Not only added latencies and connections, there will be more resources used up in fine-grained approach due to more number of APIs.
That's why, fine-grained APIs are good in a way to expose more number of resuable assets in your network and make them discoverable. However, needs more maintenance, taking care of integration points, connections, resources with a little compromise w.r.t network hops and response times.
問題 #49*
What Mule application can have API policies applied by
Anypoint Platform to the endpoint exposed by that Mule application?
A) A Mule application that accepts requests over HTTP/1.x

B) A Mule application that accepts JSON requests over TCP but is NOT required to provide a response

C) A Mute application that accepts JSON requests over WebSocket

D) A Mule application that accepts gRPC requests over HTTP/2

• A. Option A
• B. Option C
• C. Option D
• D. Option B

答案：A 解題說明：
Option A
****************************************
>> Anypoint API Manager and API policies are applicable to all types of HTTP/1.x APIs.
>> They are not applicable to WebSocket APIs, HTTP/2 APIs and gRPC APIs
問題 #50*
In which layer of API-led connectivity, does the business logic orchestration reside?

• A. System Layer
• B. Process Layer
• C. Experience Layer

答案：B 解題說明：
Process Layer
****************************************
>> Experience layer is dedicated for enrichment of end user experience. This layer is to meet the needs of different API clients/ consumers.
>> System layer is dedicated to APIs which are modular in nature and implement/ expose various individual functionalities of backend systems
>> Process layer is the place where simple or complex business orchestration logic is written by invoking one or many System layer modular APIs So, Process Layer is the right answer.
問題 #51*
What is the main change to the IT operating model that MuleSoft recommends to organizations to improve innovation and clock speed?

• A. Drive consumption as much as production of assets; this enables developers to discover and reuse assets from other projects and encourages standardization
• B. Create a lean and agile organization that makes many small decisions everyday; this speeds up decision making and enables each line of business to take ownership of its projects
• C. Implement SOA for reusable APIs to focus on production over consumption; this standardizes on XML and WSDL formats to speed up decision making
• D. Expose assets using a Master Data Management (MDM) system; this standardizes projects and enables developers to quickly discover and reuse assets from other projects

答案：A 解題說明：
Drive consumption as much as production of assets; this enables developers to discover and reuse assets from other projects and encourages standardization
****************************************
>> The main motto of the new IT Operating Model that MuleSoft recommends and made popular is to change the way that they are delivered from a production model to a production + consumption model, which is done through an API strategy called API-led connectivity.
>> The assets built should also be discoverable and self-serveable for reusablity across LOBs and organization.
>> MuleSoft's IT operating model does not talk about SDLC model (Agile/ Lean etc) or MDM at all. So, options suggesting these are not valid.
References:
https://blogs.mulesoft.com/biz/connectivity/what-is-a-center-for-enablement-c4e/
https://www.mulesoft.com/resources/api/secret-to-managing-it-projects
問題 #52
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