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

主題	簡介
主題 1	Identify the factors involved in scaling API performance Select strategies that help API clients guard against failures in API invocations
主題 2	Describe the metrics collected by Anypoint Platform for API invocations Specify alerts to define for key metrics of API invocations for all layers of API-led connectivity
主題 3	Select CloudHub worker sizes and configuration as appropriate Specify how and when to promote APIs with API Manager
主題 4	Define and describe the benefits of API-led connectivity and application networks Explain MuleSoft’s proposal for closing the IT delivery gap
主題 5	Identify KPIs to measure the success of a C4E Select Anypoint Platform identity management vs client management for the correct purpose
主題 6	Identify single points of failure in typical CloudHub usage Identify the components of Anypoint Platform that generate data for monitoring and alerting
主題 7	Break down functional requirements into business-aligned APIs with effective granularity Identify idempotent HTTP methods and HTTP-native support for optimistic concurrency
主題 8	Describe the purpose and roles of a Center for Enablement (C4E) Describe the capabilities and high-level components of Anypoint Platform
主題 9	Correctly use the terms API, API implementation, API client, API consumer, and API invocation Describe the fundamentals of deployments, networking, and routing on CloudHub

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最新的 MuleSoft Certified Platform Architect MCPA-Level-1-Maintenance 免費考試真題 (Q56-Q61):

問題 #56
Version 3.0.1 of a REST API implementation represents time values in PST time using ISO 8601 hh:mm:ss format. The API implementation needs to be changed to instead represent time values in CEST time using ISO
8601 hh:mm:ss format. When following the semver.org semantic versioning specification, what version should be assigned to the updated API implementation?

• A. 3.1.0
• B. 3.0.1
• C. 3.0.2
• D. 4.0.0

答案：D 解題說明：
4.0.0
****************************************
As per semver.org semantic versioning specification:
Given a version number MAJOR.MINOR.PATCH, increment the:
- MAJOR version when you make incompatible API changes.
- MINOR version when you add functionality in a backwards compatible manner.
- PATCH version when you make backwards compatible bug fixes.
As per the scenario given in the question, the API implementation is completely changing its behavior.
Although the format of the time is still being maintained as hh:mm:ss and there is no change in schema w.r.t format, the API will start functioning different after this change as the times are going to come completely different.
Example: Before the change, say, time is going as 09:00:00 representing the PST. Now on, after the change, the same time will go as 18:00:00 as Central European Summer Time is 9 hours ahead of Pacific Time.
>> This may lead to some uncertain behavior on API clients depending on how they are handling the times in the API response. All the API clients need to be informed that the API functionality is going to change and will return in CEST format. So, this considered as a MAJOR change and the version of API for this new change would be 4.0.0
問題 #57*
What CANNOT be effectively enforced using an API policy in Anypoint Platform?

• A. Logging HTTP requests and responses
• B. Backend system overloading
• C. Guarding against Denial of Service attacks
• D. Maintaining tamper-proof credentials between APIs

答案：C 解題說明：
Guarding against Denial of Service attacks
****************************************
>> Backend system overloading can be handled by enforcing "Spike Control Policy"
>> Logging HTTP requests and responses can be done by enforcing "Message Logging Policy"
>> Credentials can be tamper-proofed using "Security" and "Compliance" Policies However, unfortunately, there is no proper way currently on Anypoint Platform to guard against DOS attacks.
問題 #58*
The application network is recomposable: it is built for change because it "bends but does not break"

• A. TRUE
• B. FALSE

答案：A 解題說明：
Explanation
****************************************
>> Application Network is a disposable architecture.
>> Which means, it can be altered without disturbing entire architecture and its components.
>> It bends as per requirements or design changes but does not break
問題 #59*
An API implementation is updated. When must the RAML definition of the API also be updated?

• A. When the API implementation changes from interacting with a legacy backend system deployed on-premises to a modern, cloud-based (SaaS) system
• B. When the API implementation is optimized to improve its average response time
• C. When the API implementation changes the structure of the request or response messages
• D. When the API implementation is migrated from an older to a newer version of the Mule runtime

答案：C 解題說明：
When the API implementation changes the structure of the request or response messages
****************************************
>> RAML definition usually needs to be touched only when there are changes in the request/response schemas or in any traits on API.
>> It need not be modified for any internal changes in API implementation like performance tuning, backend system migrations etc..
問題 #60*
What are the major benefits of MuleSoft proposed IT Operating Model?

• A. 1. Decrease the IT delivery gap
  2. Meet various business demands by increasing the IT capacity and forming various IT departments
  3. Make consumption of assets at the rate of production
• B. 1. Decrease the IT delivery gap
  2. Meet various business demands without increasing the IT capacity
  3. Make consumption of assets at the rate of production
• C. 1. Decrease the IT delivery gap
  2. Meet various business demands without increasing the IT capacity
  3. Focus on creation of reusable assets first. Upon finishing creation of all the possible assets then inform the LOBs in the organization to start using them

答案：B 解題說明：
1. Decrease the IT delivery gap
2. Meet various business demands without increasing the IT capacity
3. Make consumption of assets at the rate of production.
****************************************
問題 #61
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