Mulesoft MCPA-Level-1 Exam Questions

How can the application of a rate limiting API policy be accurately reflected in the RAML definition of an API?

A.

By refining the resource definitions by adding a description of the rate limiting policy behavior

B.

By refining the request definitions by adding a remaining Requests query parameter with description, type, and example

C.

By refining the response definitions by adding the out-of-the-box Anypoint Platform ratelimit-
enforcement securityScheme with description, type, and example

D.

By refining the response definitions by adding the x-ratelimit-* response headers with
description, type, and example

An Order API triggers a sequence of other API calls to look up details of an order's items in a back-end inventory database. The Order API calls the OrderItems process API, which calls the Inventory system API. The Inventory system API performs database operations in the back-end inventory database.
The network connection between the Inventory system API and the database is known to be unreliable and hang at unpredictable times.
Where should a two-second timeout be configured in the API processing sequence so that the Order API never waits more than two seconds for a response from the Orderltems process API?

A. In the Orderltems process API implementation

B. In the Order API implementation

C. In the Inventory system API implementation

D. In the inventory database

A company is building an application network using MuleSoft's recommendations for various API layers. What is the main (default) role of a process API in an application network?

A. To secure and optimize the data synchronization processing of large data dumps between back-end systems

B. To manage and process the secure direct communication between a back-end system and an end-user client of mobile device in the application network

C. To automate parts of business processes by coordinating and orchestrating the invocation of other APIs in the application network

D. To secure, Manage, and process communication with specific types of end-user client applications or devices in the application network

Refer to the exhibits.

A. Option A

B. Option B

C. Option C

D. Option D

A new upstream API Is being designed to offer an SLA of 500 ms median and 800 ms
maximum (99th percentile) response time. The corresponding API implementation needs to
sequentially invoke 3 downstream APIs of very similar complexity.
The first of these downstream APIs offers the following SLA for its response time: median:
100 ms, 80th percentile: 500 ms, 95th percentile: 1000 ms.
If possible, how can a timeout be set in the upstream API for the invocation of the first
downstream API to meet the new upstream API's desired SLA?

A.

Set a timeout of 50 ms; this times out more invocations of that API but gives additional
room for retries

B.

Set a timeout of 100 ms; that leaves 400 ms for the other two downstream APIs to complete

C.

No timeout is possible to meet the upstream API's desired SLA; a different SLA must be
negotiated with the first downstream API or invoke an alternative API

D.

Do not set a timeout; the Invocation of this API Is mandatory and so we must wait until it
responds

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 modem API must be treated like a product and designed for a particular target audience (for instance, mobile app developers)

C.

Each modern API must be easy to consume, so should avoid complex authentication mechanisms such as SAML or JWT D

D.

Each modern API must be REST and HTTP based

A circuit breaker strategy is planned in order to meet the goal of improved response time and demand on a downstream API.

• Circuit Open: More than 10 errors per minute for three minutes
• Circuit Half-Open: One error per minute
• Circuit Closed: Less than one error per minute for five minutes

Out of several proposals from the engineering team, which option will meet this goal?

A. Create a custom policy that implements the circuit breaker and includes policy template expressions for the required settings

B. Create Anypoint Monitoring alerts for Circuit Open/Closed configurations, and then implement a retry strategy for Circuit Half-Open configuration

C. Add the Circuit Breaker policy to the API instance, and configure the required settings

D. Implement the strategy in a Mule application, and provide the settings in the YAML configuration

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.

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

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.

API policies can be applied to the Anypoint Platform APIs so that ONLY certain LOBs have access to specific functions