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MuleSoft Certified Platform Architect I
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If a client application requires data from multiple APIs and needs to aggregate that data into a single response, which Anypoint Platform feature would facilitate this type of data transformation and aggregation?
API Manager
Anypoint Design Center
ypoint Runtime Manager er: B
nation: Anypoint Design Center enables developers to design APIs that can perform data ormation and aggregation, allowing a client application to receive a single, cohesive response
orking with CloudHub, you notice that your application's performance is degrading during hat is the most effective way to address this issue without significant downtime?
start the application to clear cached data.
able unnecessary connectors to free up resources.
duce the number of concurrent requests by implementing throttling. le up the worker size temporarily to handle the increased load.
er: D
nation: Scaling up the worker size temporarily during peak times allows the application to ha sed load without significant downtime, ensuring better performance without needing to stop ation.
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In a project where different teams are consuming a shared API, what strategy should you employ to ensure that the API documentation is always up to date and accurately reflects the latest changes in the API implementation?
Manually update the documentation every time changes are made.
Rely on team communication to inform about changes.
Require teams to submit documentation updates as part of their deployment process.
Use a tool that automatically generates documentation from the API specifications. Answer: D
Explanation: Using a tool that automatically generates documentation from the API specifications ensures that the documentation is always up to date and accurately reflects the API implementation, reducing the risk of discrepancies.
Quest enario where a financial API needs to protect against replay attacks, which strategy should b mented to ensure that previously captured tokens cannot be reused? long-lived access tokens lude timestamps and nonces in tokens on client-side validation ow unlimited token reuse er: B nation: Including timestamps and nonces in tokens ensures that each token is unique and can once, effectively preventing replay attacks. the primary function of using "traits" in RAML when designing an API that requires consi security measures across multiple endpoints? efine unique traits for each endpoint imit access to only specific client applications entralize the definition of security schemes for reuse In a sc e imple Use Inc Rely All Answ Expla only be used What is stent To d To l To c To create documentation for each endpoint Answer: C Explanation: Traits allow for the centralization of security definitions, ensuring consistent application of security measures across multiple endpoints. During a performance review, you are tasked with identifying opportunities for optimization in your API. Which of the following practices should you consider implementing based on the insights gathered from Anypoint Platform analytics? All of the above. Refactoring the API to reduce payload size. Deploying additional caching mechanisms. nation: Each of these practices can contribute to better API performance and efficiency based from analytics. of the following is a potential challenge that organizations might face when implementing A ctivity? mplified user experience with no need for custom front-end development. ignificant reduction in the number of APIs needed for integration. hanced security due to layered architecture. reased interdependence among APIs leading to potential bottlenecks. er: D nation: Increased interdependence among APIs can lead to bottlenecks if not managed proper es in one API can impact others. Expla on insights Which PI-led conne Si A s En Inc Answ Expla ly, as chang When implementing API security measures, what is the most effective way to protect against SQL injection attacks in an API that interacts with a database? Rely on the database's default security settings Use ORM frameworks exclusively Validate all input data Use prepared statements or parameterized queries Answer: D Explanation: Prepared statements or parameterized queries ensure that user input is treated as data and not executable code, effectively preventing SQL injection attacks. You are implementing a new version of an API, and you need to ensure that existing consumers can still access the previous version without disruption. What is the best approach to manage this versioning? precate the old version immediately upon releasing the new version. URI versioning and keep both versions available in the developer portal. ly inform developers about the new version and remove the old version after six months. er: C nation: Using URI versioning allows you to maintain both versions of the API simultaneousl ing consumers with the flexibility to migrate to the new version at their own pace. the API lifecycle management process, what is the primary purpose of conducting an API audit? dentify potential market opportunities for new APIs ssess the performance metrics of existing APIs nsure compliance with organizational policies and standards repare documentation for future API consumers er: C nation: Conducting an API audit is primarily aimed at ensuring compliance with organization and standards, identifying any areas where APIs may not meet governance requirements. Simply change the API endpoint to the new version without any additional configuration. De Use On Answ Expla y, provid During To i To a To e To p Answ Expla al policies To protect your API from unwanted traffic and potential denial-of-service attacks, you decide to implement throttling. What is the primary difference between rate limiting and throttling? Rate limiting restricts the number of requests from a user over time, while throttling controls the speed of requests. Rate limiting is applied globally, while throttling is user-specific. Rate limiting is only for unauthenticated users, while throttling applies to all users. Rate limiting allows unlimited requests, while throttling restricts to one request per minute. Answer: A Explanation: Rate limiting restricts the number of requests a user can make over a defined period, while throttling controls the rate at which requests are processed, ensuring smoother operation under load. re integrating a new messaging service into your existing architecture, and you need to ensur ges are processed reliably, even in the event of failures. What design pattern should you imp ieve this? e-and-forget pattern. ry pattern combined with a dead-letter queue. mpeting consumers pattern. blish-subscribe pattern without acknowledgment. er: B nation: Implementing a retry pattern combined with a dead-letter queue ensures that message sed reliably, allowing for retries in case of failures and providing a mechanism to handle verable messages. ontext of RAML, which of the following best describes the significance of annotations in A ey provide a way to document API endpoints and their behavior. ey are used to define the API's security protocols. Question: 470 You a e that messa lement to ach Fir Ret Co Pu Answ Expla s are proces undeli In the c PI design? Th Th They specify the response formats for each endpoint. They enforce data validation rules on request bodies. Answer: A Explanation: Annotations in RAML serve as a means to document the API's endpoints and their behavior, enhancing the clarity and usability of the API documentation for developers. In reviewing your API's traffic reports, you notice a 50% increase in usage after a marketing campaign. Which strategy could you implement to ensure the API can handle this increased load without degrading performance? Scale up resources based on estimated load. Both A and C. Review and optimize the API's code for efficiency. er: B nation: Scaling resources and optimizing code are both essential strategies to ensure the API increased load effectively. mpany is attempting to implement real-time monitoring of their deployed APIs and applicati omponent of the Anypoint Platform would be best suited to provide this capability? ypoint Exchange ypoint Runtime Manager ypoint Design Center udHub er: B nation: Anypoint Runtime Manager provides real-time monitoring capabilities for deployed A plications, allowing organizations to track their performance continuously. Expla can handle If a co ons, which c An An An Clo Answ Expla PIs and ap You are developing an API that requires data to be transformed based on user preferences. How can you implement this transformation in a way that allows for flexibility and scalability? Hard-code transformation logic into the API. Implement a separate API for each transformation requirement. Use configurable transformation templates that can be adjusted without changing the API code. Rely on client-side transformations to reduce server load. Answer: C Explanation: Using configurable transformation templates allows for flexibility and scalability, enabling adjustments based on user preferences without requiring changes to the API code itself. sic Authentication and IP Whitelisting uth 2.0 with JWT and Client Credentials Grant Key and Basic Authentication uth 1.0 and Basic Authentication er: B nation: OAuth 2.0 with JWT provides a robust framework for access delegation and token-ba tication, allowing third-party developers to securely access APIs without exposing user cred lient Credentials Grant is suitable for server-to-server communication, enhancing security. re designing an API that requires a robust versioning strategy to accommodate future change disrupting existing consumers. What is a best practice to follow when implementing versi query parameters to specify the version of the API. ange the API version in the headers for all requests. y document the latest version and deprecate all old versions. a version number in the URI path of the API. er: D Ba OA API OA Answ Expla sed authen entials. The C You a s without oning? Use Ch Onl Use Answ Explanation: Using a version number in the URI path of the API is a widely accepted best practice that allows clear differentiation between versions and ensures that existing consumers can continue using older versions without disruption. A company is facing issues with API abuse, leading to performance degradation. What is the most effective policy they can implement to mitigate this problem? Increase the number of API endpoints available Encourage users to report any performance issues Implement rate limiting and throttling policies Reduce the number of users accessing the API Answer: C re working in Anypoint Design Center and need to document an API that uses multiple tication methods. What is the best approach to document these methods clearly? cument each authentication method separately, detailing how to implement them. vide a general overview of authentication types without specifics. y document the most secure authentication method. a table format to compare authentication methods side by side. er: A nation: Documenting each authentication method separately with detailed implementation tions provides clarity and ensures that developers understand how to use each method effecti enario where an organization needs to integrate multiple APIs and microservices while ensu fferent development teams can collaborate effectively, which Anypoint Platform component a centralized repository for API specifications and reusable assets? You a authen Do Pro Onl Use Answ Expla instruc vely. In a sc ring that di would provide Anypoint Runtime Manager CloudHub Anypoint Design Center Anypoint Exchange Answer: D Explanation: Anypoint Exchange serves as a centralized repository for APIs, connectors, templates, and other reusable assets, facilitating collaboration among different development teams. When deploying an application that requires auto-scaling and multi-tenancy in a cloud environment, which component of the Anypoint Platform would be the most appropriate choice for hosting this application? Anypoint Design Center ypoint Runtime Manager udHub er: D nation: CloudHub is designed for hosting applications in a cloud environment with features like caling and multi-tenancy, making it ideal for such deployment scenarios. is vulnerable to Cross-Site Scripting (XSS) attacks. Which measure would be most effecti ting this risk? plementing CORS policies ng HTTPS for secure transmission aping user input before rendering orcing strict content security policies er: C nation: Escaping user input before rendering helps prevent XSS attacks by ensuring that untr treated as text and not executable code, thus mitigating the risk. An Clo Answ Expla auto-s An API ve in mitiga Im Usi Esc Enf Answ Expla usted data is When defining an API strategy, which of the following elements would be considered least relevant to the strategy's success in terms of aligning technical and business objectives? Business Use Cases API Performance Metrics Technical Stack Choices Personal Preferences of API Developers Answer: D Explanation: Personal preferences of API developers are least relevant compared to business use cases, performance metrics, and technical stack choices, which directly impact the strategy’s alignment with organizational goals. mplementing pagination in a RESTful API, which of the following methods is considered t ESTful practice? urning all records in one response and using client-side pagination. luding a next link in the response to guide clients to retrieve subsequent pages. viding a separate endpoint for each possible page of results. ng query parameters like page and limit to control the number of records returned. er: D nation: Using query parameters like page and limit to control the number of records returned ered a RESTful practice, allowing clients to request specific subsets of data efficiently. enario where your API needs to communicate with several microservices, you decide to use or authentication. How can you minimize the risk of API key leakage in such an architecture re API keys directly in the source code repository a secrets management tool to store and access API keys re API keys via unsecured channels for ease of access mit API key usage to local development environments onlyion: 462
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