A company has created a successful enterprise data model (EDM). The company is
committed to building an application network by adopting modern APIs as a core enabler of
the company's IT operating model. At what API tiers (experience, process, system) should
the company require reusing the EDM when designing modern API data models?
A.
At the experience and process tiers
B.
At the experience and system tiers
C.
At the process and system tiers
D.
At the experience, process, and system tiers
At the process and system tiers
Explanation: Explanation Correct Answer: At the process and system tiers
*****************************************
>> Experience Layer APIs are modeled and designed exclusively for the end user's
experience. So, the data models of experience layer vary based on the nature and type of
such API consumer. For example, Mobile consumers will need light-weight data models to
transfer with ease on the wire, where as web-based consumers will need detailed data
models to render most of the info on web pages, so on. So, enterprise data models fit for
the purpose of canonical models but not of good use for experience APIs.
>> That is why, EDMs should be used extensively in process and system tiers but NOT in
experience tier.
Traffic is routed through an API proxy to an API implementation. The API proxy is managed
by API Manager and the API implementation is deployed to a CloudHub VPC using
Runtime Manager. API policies have been applied to this API. In this deployment scenario,
at what point are the API policies enforced on incoming API client requests?
A.
At the API proxy
B.
At the API implementation
C.
At both the API proxy and the API implementation
D.
At a MuleSoft-hosted load balancer
At the API proxy
Explanation: Explanation
Correct Answer: At the API proxy
*****************************************
>> API Policies can be enforced at two places in Mule platform.
>> One - As an Embedded Policy enforcement in the same Mule Runtime where API
implementation is running.
>> Two - On an API Proxy sitting in front of the Mule Runtime where API implementation is
running.
>> As the deployment scenario in the question has API Proxy involved, the policies will be
enforced at the API Proxy.
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 producer should be requested to run the old version in parallel with the new one
B.
The API producer should be contacted to understand the change to existing functionality
C.
The API client code only needs to be changed if it needs to take advantage of the new features
D.
The API clients need to update the code on their side and need to do full regression
The API client code only needs to be changed if it needs to take advantage of the new features
What best explains the use of auto-discovery in API implementations?
A. It makes API Manager aware of API implementations and hence enables it to enforce policies
B. It enables Anypoint Studio to discover API definitions configured in Anypoint Platform
C. It enables Anypoint Exchange to discover assets and makes them available for reuse
D. It enables Anypoint Analytics to gain insight into the usage of APIs
Explanation: Explanation
Correct Answer: It makes API Manager aware of API implementations and hence enables it
to enforce policies.
*****************************************
>> API Autodiscovery is a mechanism that manages an API from API Manager by pairing
the deployed application to an API created on the platform.
>> API Management includes tracking, enforcing policies if you apply any, and reporting
API analytics.
>> Critical to the Autodiscovery process is identifying the API by providing the API name
and version.
References:
https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new-concept
https://docs.mulesoft.com/api-manager/1.x/api-auto-discovery
https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new-concept
Which of the below, when used together, makes the IT Operational Model effective?
A.
Create reusable assets, Do marketing on the created assets across organization, Arrange time to time LOB reviews to ensure assets are being consumed or not
B.
Create reusable assets, Make them discoverable so that LOB teams can self-serve and browse the APIs, Get active feedback and usage metrics
C.
Create resuable assets, make them discoverable so that LOB teams can self-serve and browse the APIs
Create resuable assets, make them discoverable so that LOB teams can self-serve and browse the APIs
Explanation: Explanation
Correct Answer: Create reusable assets, Make them discoverable so that LOB teams can self-serve and browse the APIs, Get active feedback and usage metrics.
Diagram, arrow
Description automatically generated
An application updates an inventory running only one process at any given time to keep the inventory consistent. This process takes 200 milliseconds (.2 seconds) to execute; therefore, the scalability threshold of the application is five requests per second. What is the impact on the application if horizontal scaling is applied, thereby increasing the number of Mule workers?
A. The application scalability threshold is five requests per second regardless of the horizontal scaling
B. The total process execution time is now 100 milliseconds (.1 seconds)
C. The application scalability threshold is now 10 requests per second
D. Horizontal scaling cannot be applied to an already-running application
Explanation:
Given that the application is designed to handle only one process at a time
to maintain data consistency, here’s why horizontal scaling won’t increase the
processing limit:
Single-Process Constraint:
An API implementation is updated. When must the RAML definition of the API also be updated?
A.
When the API implementation changes the structure of the request or response messages
B.
When the API implementation changes from interacting with a legacy backend system deployed on-premises to a modern, cloud-based (SaaS) system
C.
When the API implementation is migrated from an older to a newer version of the Mule runtime
D.
When the API implementation is optimized to improve its average response time
When the API implementation changes the structure of the request or response messages
Explanation: Explanation
Correct Answer: 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
A company has started to create an application network and is now planning to implement a Center for Enablement (C4E) organizational model. What key factor would lead the company to decide upon a federated rather than a centralized C4E?
A.
When there are a large number of existing common assets shared by development teams
B.
When various teams responsible for creating APIs are new to integration and hence need extensive training
C.
When development is already organized into several independent initiatives or groups
D.
When the majority of the applications in the application network are cloud based
When development is already organized into several independent initiatives or groups
Explanation: Explanation
Correct Answer: When development is already organized into several independent
initiatives or groups
*****************************************
>> It would require lot of process effort in an organization to have a single C4E team
coordinating with multiple already organized development teams which are into several
independent initiatives. A single C4E works well with different teams having at least a
common initiative. So, in this scenario, federated C4E works well instead of centralized
C4E.
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