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Who should take the MuleSoft MCPA - Level 1: MuleSoft Certified Platform Architect - Level 1 Exam
The MuleSoft MCPA - Level 1: MuleSoft Certified Platform Architect - Level 1 exam certification is an internationally recognized certification that helps to have validation for those professionals who are keen to make their career in MuleSoft design, build, test and debug, deploy, and manage basic APIs and integrations.
If a candidate/professional seeks a powerful improvement in career growth needs enhanced knowledge, skills, and talents. The MuleSoft MCPA - Level 1: MuleSoft Certified Platform Architect - Level 1 certification provides proof of this advanced knowledge and skill.
NEW QUESTION 46
An API has been updated in Anypoint exchange by its API producer from version 3.1.1 to 3.2.0 following accepted semantic versioning practices and the changes have been communicated via the APIs public portal. The API endpoint does NOT change in the new version. How should the developer of an API client respond to this change?
- A. The API client code only needs to be changed if it needs to take advantage of the new features
- B. The API producer should be requested to run the old version in parallel with the new one
- C. The API producer should be contacted to understand the change to existing functionality
- D. The API clients need to update the code on their side and need to do full regression
Answer: A
NEW QUESTION 47
When must an API implementation be deployed to an Anypoint VPC?
- A. When the API implementation must be accessible within a subnet of a restricted customer-hosted network that does not allow public access
- B. When the API Implementation must write to a persistent Object Store
- C. When the API implementation must be deployed to a production AWS VPC using the Mule Maven plugin
- D. When the API Implementation must invoke publicly exposed services that are deployed outside of CloudHub in a customer- managed AWS instance
Answer: D
NEW QUESTION 48
An organization makes a strategic decision to move towards an IT operating model that emphasizes consumption of reusable IT assets using modern APIs (as defined by MuleSoft).
What best describes each modern API in relation to this new IT operating model?
- A. Each modern API has its own software development lifecycle, which reduces the need for documentation and automation
- B. Each modern API must be easy to consume, so should avoid complex authentication mechanisms such as SAML or JWT D
- C. Each modern API must be REST and HTTP based
- D. Each modem API must be treated like a product and designed for a particular target audience (for instance, mobile app developers)
Answer: C
NEW QUESTION 49
A retail company with thousands of stores has an API to receive data about purchases and insert it into a single database. Each individual store sends a batch of purchase data to the API about every 30 minutes. The API implementation uses a database bulk insert command to submit all the purchase data to a database using a custom JDBC driver provided by a data analytics solution provider. The API implementation is deployed to a single CloudHub worker. The JDBC driver processes the data into a set of several temporary disk files on the CloudHub worker, and then the data is sent to an analytics engine using a proprietary protocol. This process usually takes less than a few minutes. Sometimes a request fails. In this case, the logs show a message from the JDBC driver indicating an out-of-file-space message. When the request is resubmitted, it is successful. What is the best way to try to resolve this throughput issue?
- A. se a CloudHub autoscaling policy to add CloudHub workers
- B. Increase the number of CloudHub workers
- C. Increase the size of the CloudHub worker(s)
- D. Use a CloudHub autoscaling policy to increase the size of the CloudHub worker
Answer: B
Explanation:
Correct answer: Increase the size of the CloudHub worker(s)
*****************************************
The key details that we can take out from the given scenario are:
>> API implementation uses a database bulk insert command to submit all the purchase data to a database
>> JDBC driver processes the data into a set of several temporary disk files on the CloudHub worker
>> Sometimes a request fails and the logs show a message indicating an out-of-file-space message Based on above details:
>> Both auto-scaling options does NOT help because we cannot set auto-scaling rules based on error messages. Auto-scaling rules are kicked-off based on CPU/Memory usages and not due to some given error or disk space issues.
>> Increasing the number of CloudHub workers also does NOT help here because the reason for the failure is not due to performance aspects w.r.t CPU or Memory. It is due to disk-space.
>> Moreover, the API is doing bulk insert to submit the received batch data. Which means, all data is handled by ONE worker only at a time. So, the disk space issue should be tackled on "per worker" basis. Having multiple workers does not help as the batch may still fail on any worker when disk is out of space on that particular worker.
Therefore, the right way to deal this issue and resolve this is to increase the vCore size of the worker so that a new worker with more disk space will be provisioned.
NEW QUESTION 50
An API implementation is deployed to CloudHub.
What conditions can be alerted on using the default Anypoint Platform functionality, where the alert conditions depend on the end-to-end request processing of the API implementation?
- A. When a particular API client invokes the API too often within a given time period
- B. When the API receives a very high number of API invocations
- C. When the response time of API invocations exceeds a threshold
- D. When the API is invoked by an unrecognized API client
Answer: C
NEW QUESTION 51
The implementation of a Process API must change.
What is a valid approach that minimizes the impact of this change on API clients?
- A. Implement required changes to the Process API implementation so that whenever possible, the Process API's RAML definition remains unchanged
- B. Postpone changes until API consumers acknowledge they are ready to migrate to a new Process API or API version
- C. Update the RAML definition of the current Process API and notify API client developers by sending them links to the updated RAML definition
- D. Implement the Process API changes in a new API implementation, and have the old API implementation return an HTTP status code 301 - Moved Permanently to inform API clients they should be calling the new API implementation
Answer: D
NEW QUESTION 52
What Mule application deployment scenario requires using Anypoint Platform Private Cloud Edition or Anypoint Platform for Pivotal Cloud Foundry?
- A. When regulatory requirements mandate on-premises processing of EVERY data item, including meta-data
- B. When it Is required to make ALL applications highly available across multiple data centers
- C. When ALL backend systems in the application network are deployed in the organization's intranet
- D. When it is required that ALL APIs are private and NOT exposed to the public cloud
Answer: C
NEW QUESTION 53
An API client calls one method from an existing API implementation. The API implementation is later updated. What change to the API implementation would require the API client's invocation logic to also be updated?
- A. When a child method is added to the method called by the API client
- B. When a new method is added to the resource used by the API client
- C. When the data type of the response is changed for the method called by the API client
- D. When a new required field is added to the method called by the API client
Answer: D
Explanation:
Correct answer: When a new required field is added to the method called by the API client
*****************************************
>> Generally, the logic on API clients need to be updated when the API contract breaks.
>> When a new method or a child method is added to an API , the API client does not break as it can still continue to use its existing method. So these two options are out.
>> We are left for two more where "datatype of the response if changed" and "a new required field is added".
>> Changing the datatype of the response does break the API contract. However, the question is insisting on the "invocation" logic and not about the response handling logic. The API client can still invoke the API successfully and receive the response but the response will have a different datatype for some field.
>> Adding a new required field will break the API's invocation contract. When adding a new required field, the API contract breaks the RAML or API spec agreement that the API client/API consumer and API provider has between them. So this requires the API client invocation logic to also be updated.
NEW QUESTION 54
An organization uses various cloud-based SaaS systems and multiple on-premises systems. The on-premises systems are an important part of the organization's application network and can only be accessed from within the organization's intranet.
What is the best way to configure and use Anypoint Platform to support integrations with both the cloud-based SaaS systems and on-premises systems?
A) Use CloudHub-deployed Mule runtimes in an Anypoint VPC managed by Anypoint Platform Private Cloud Edition control plane
B) Use CloudHub-deployed Mule runtimes in the shared worker cloud managed by the MuleSoft-hosted Anypoint Platform control plane
C) Use an on-premises installation of Mule runtimes that are completely isolated with NO external network access, managed by the Anypoint Platform Private Cloud Edition control plane
D) Use a combination of Cloud Hub-deployed and manually provisioned on-premises Mule runtimes managed by the MuleSoft-hosted Anypoint Platform control plane
- A. Option B
- B. Option C
- C. Option D
- D. Option A
Answer: D
NEW QUESTION 55
Refer to the exhibit. An organization is running a Mule standalone runtime and has configured Active Directory as the Anypoint Platform external Identity Provider. The organization does not have budget for other system components.
What policy should be applied to all instances of APIs in the organization to most effecuvelyKestrict access to a specific group of internal users?
- A. Apply a basic authentication - LDAP policy; the internal Active Directory will be configured as the LDAP source for authenticating users
- B. Apply an IP whitelist policy; only the specific users' workstations will be in the whitelist
- C. Apply a client ID enforcement policy; the specific group of users will configure their client applications to use their specific client credentials
- D. Apply an OAuth 2.0 access token enforcement policy; the internal Active Directory will be configured as the OAuth server
Answer: A
NEW QUESTION 56
An API implementation is being designed that must invoke an Order API, which is known to repeatedly experience downtime.
For this reason, a fallback API is to be called when the Order API is unavailable.
What approach to designing the invocation of the fallback API provides the best resilience?
- A. Create a separate entry for the Order API in API Manager, and then invoke this API as a fallback API if the primary Order API is unavailable
- B. Search Anypoint Exchange for a suitable existing fallback API, and then implement invocations to this fallback API in addition to the Order API
- C. Redirect client requests through an HTTP 307 Temporary Redirect status code to the fallback API whenever the Order API is unavailable
- D. Set an option in the HTTP Requester component that invokes the Order API to instead invoke a fallback API whenever an HTTP 4xx or 5xx response status code is returned from the Order API
Answer: C
NEW QUESTION 57
Refer to the exhibit.
What is a valid API in the sense of API-led connectivity and application networks?
A) Java RMI over TCP
B) Java RMI over TCP
C) CORBA over HOP
D) XML over UDP
- A. Option B
- B. Option D
- C. Option C
- D. Option A
Answer: B
NEW QUESTION 58
A Mule application exposes an HTTPS endpoint and is deployed to the CloudHub Shared Worker Cloud. All traffic to that Mule application must stay inside the AWS VPC.
To what TCP port do API invocations to that Mule application need to be sent?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
Correct answer: 8082
*****************************************
>> 8091 and 8092 ports are to be used when keeping your HTTP and HTTPS app private to the LOCAL VPC respectively.
>> Above TWO ports are not for Shared AWS VPC/ Shared Worker Cloud.
>> 8081 is to be used when exposing your HTTP endpoint app to the internet through Shared LB
>> 8082 is to be used when exposing your HTTPS endpoint app to the internet through Shared LB So, API invocations should be sent to port 8082 when calling this HTTPS based app.
References:
https://docs.mulesoft.com/runtime-manager/cloudhub-networking-guide
https://help.mulesoft.com/s/article/Configure-Cloudhub-Application-to-Send-a-HTTPS-Request-Directly-to-Another-Cloudhub-Application
https://help.mulesoft.com/s/question/0D52T00004mXXULSA4/multiple-http-listerners-on-cloudhub-one-with-port-9090
NEW QUESTION 59
What condition requires using a CloudHub Dedicated Load Balancer?
- A. When custom DNS names are required for API implementations deployed to customer-hosted Mule runtimes
- B. When cross-region load balancing is required between separate deployments of the same Mule application
- C. When API invocations across multiple CloudHub workers must be load balanced
- D. When server-side load-balanced TLS mutual authentication is required between API implementations and API clients
Answer: A
NEW QUESTION 60
An organization has created an API-led architecture that uses various API layers to integrate mobile clients with a backend system. The backend system consists of a number of specialized components and can be accessed via a REST API. The process and experience APIs share the same bounded-context model that is different from the backend data model. What additional canonical models, bounded-context models, or anti-corruption layers are best added to this architecture to help process data consumed from the backend system?
- A. Create an anti-corruption layer for every API to perform transformation for every data model to match each other, and let data simply travel between APIs to avoid the complexity and overhead of building canonical models
- B. Create a bounded-context model for the system layer to closely match the backend data model, and add an anti-corruption layer to let the different bounded contexts cooperate across the system and process layers
- C. Create a bounded-context model for every layer and overlap them when the boundary contexts overlap, letting API developers know about the differences between upstream and downstream data models
- D. Create a canonical model that combines the backend and API-led models to simplify and unify data models, and minimize data transformations.
Answer: B
Explanation:
Correct answer: Create a bounded-context model for the system layer to closely match the backend data model, and add an anti-corruption layer to let the different bounded contexts cooperate across the system and process layers
*****************************************
>> Canonical models are not an option here as the organization has already put in efforts and created bounded-context models for Experience and Process APIs.
>> Anti-corruption layers for ALL APIs is unnecessary and invalid because it is mentioned that experience and process APIs share same bounded-context model. It is just the System layer APIs that need to choose their approach now.
>> So, having an anti-corruption layer just between the process and system layers will work well. Also to speed up the approach, system APIs can mimic the backend system data model.
NEW QUESTION 61
An organization makes a strategic decision to move towards an IT operating model that emphasizes consumption of reusable IT assets using modern APIs (as defined by MuleSoft).
What best describes each modern API in relation to this new IT operating model?
- A. Each modern API has its own software development lifecycle, which reduces the need for documentation and automation
- B. Each modern API must be REST and HTTP based
- C. Each modem API must be treated like a product and designed for a particular target audience (for instance, mobile app developers)
- D. Each modern API must be easy to consume, so should avoid complex authentication mechanisms such as SAML or JWT D
Answer: C
NEW QUESTION 62
How can the application of a rate limiting API policy be accurately reflected in the RAML definition of an API?
- A. By refining the response definitions by adding the x-ratelimit-* response headers with description, type, and example
- B. By refining the response definitions by adding the out-of-the-box Anypoint Platform rate-limit-enforcement securityScheme with description, type, and example
- C. By refining the resource definitions by adding a description of the rate limiting policy behavior
- D. By refining the request definitions by adding a remaining Requests query parameter with description, type, and example
Answer: A
NEW QUESTION 63
The responses to some HTTP requests can be cached depending on the HTTP verb used in the request.
According to the HTTP specification, for what HTTP verbs is this safe to do?
- A. GET, OPTIONS, HEAD
- B. GET, PUT, OPTIONS
- C. GET, HEAD, POST
- D. PUT, POST, DELETE
Answer: D
NEW QUESTION 64
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. Process Layer
- C. Experience Layer
Answer: A
Explanation:
Correct answer: 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.
NEW QUESTION 65
Refer to the exhibit.
Three business processes need to be implemented, and the implementations need to communicate with several different SaaS applications.
These processes are owned by separate (siloed) LOBs and are mainly independent of each other, but do share a few business entities. Each LOB has one development team and their own budget In this organizational context, what is the most effective approach to choose the API data models for the APIs that will implement these business processes with minimal redundancy of the data models?
A) Build several Bounded Context Data Models that align with coherent parts of the business processes and the definitions of associated business entities
B) Build distinct data models for each API to follow established micro-services and Agile API-centric practices
C) Build all API data models using XML schema to drive consistency and reuse across the organization
D) Build one centralized Canonical Data Model (Enterprise Data Model) that unifies all the data types from all three business processes, ensuring the data model is consistent and non-redundant
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: B
NEW QUESTION 66
Refer to the exhibit.
What is the best way to decompose one end-to-end business process into a collaboration of Experience, Process, and of System APIs?
- A. Use a Process API to orchestrate calls to multiple System APIs, but NOT to other Process APIs.
- B. Handle customizations for the end-user application at the Process API level rather than the Experience API level.
- C. Always use a tiered approach by creating exactly one API for each of the 3 layers (Experience, Process and System APIs).
- D. Allow System APIs to return data that is NOT currently required by the identified Process or Experience APIs.
Answer: C
NEW QUESTION 67
What best describes the Fully Qualified Domain Names (FQDNs), also known as DNS entries, created when a Mule application is deployed to the CloudHub Shared Worker Cloud?
- A. The FQDNs are determined by the application name chosen, IRRESPECTIVE of the region
- B. A fixed number of FQDNs are created, IRRESPECTIVE of the environment and VPC design
- C. The FQDNs are determined by the application name, but can be modified by an administrator after deployment
- D. The FQDNs are determined by both the application name and the Anypoint Platform organization
Answer: A
NEW QUESTION 68
What is true about automating interactions with Anypoint Platform using tools such as Anypoint Platform REST APIs, Anypoint CU, or the Mule Maven plugin?
- A. API policies can be applied to the Anypoint Platform APIs so that ONLY certain LOBs have access to specific functions
- B. Anypoint Platform APIs can ONLY automate interactions with CloudHub, while the Mule Maven plugin is required for deployment to customer-hosted Mule runtimes
- C. By default, the Anypoint CLI and Mule Maven plugin are NOT included in the Mule runtime, so are NOT available to be used by deployed Mule applications
- D. Access to Anypoint Platform APIs and Anypoint CU can be controlled separately through the roles and permissions in Anypoint Platform, so that specific users can get access to Anypoint CLI white others get access to the platform APIs
Answer: C
NEW QUESTION 69
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