API Management Service Quiz
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Questions and Answers

In API Management, who can create or invite developers to join an instance?

  • User accounts
  • Administrators (correct)
  • Developers themselves
  • API Management service

    • What are policies in API Management?

  • User accounts for API Management
  • Groups of developers
  • A collection of statements executed on the request or response of an API (correct)
  • Products granting visibility to developers

    • Where can policies be applied in API Management?

  • Only at the API operation level
  • Global (all APIs), a product, a specific API, or an API operation (correct)
  • Only at the global level
  • Only at the product level

    • What are some popular statements used in policies in API Management?

    <p>Format conversion from XML to JSON and call rate limiting</p> Signup and view all the answers

    What components make up Azure API Management?

    <p>API gateway, management plane, developer portal</p> Signup and view all the answers

    What is the purpose of products in API Management?

    <p>To surface APIs to developers</p> Signup and view all the answers

    What is the difference between Open and Protected products in API Management?

    <p>Protected products require subscription, while open products can be used without a subscription</p> Signup and view all the answers

    What are groups used for in API Management?

    <p>Manage the visibility of products to developers</p> Signup and view all the answers

    What are the core functionalities provided by API Management?

    <p>Developer engagement, business insights, analytics, security, and protection</p> Signup and view all the answers

    What is the difference between Open and Protected products in API Management?

    <p>Protected products require subscription before use, while open products can be used without a subscription</p> Signup and view all the answers

    What are groups used for in API Management?

    <p>Manage the visibility of products to developers</p> Signup and view all the answers

    What are the immutable system groups in API Management?

    <p>Administrator, developer, guest</p> Signup and view all the answers

    What are developers in API Management?

    <p>User accounts representing individuals who can create or join an instance</p> Signup and view all the answers

    What is the purpose of policies in API Management?

    <p>To execute a collection of statements sequentially on the request or response of an API</p> Signup and view all the answers

    Where can policies be applied in API Management?

    <p>Global (all APIs), a product, a specific API, or an API operation</p> Signup and view all the answers

    What are some popular statements used in policies in API Management?

    <p>Format conversion from XML to JSON and call rate limiting</p> Signup and view all the answers

    Who can create or invite developers to join an instance in API Management?

    <p>Administrators</p> Signup and view all the answers

    What is the role of products in API Management?

    <p>To grant visibility to groups and allow developers to subscribe to them</p> Signup and view all the answers

    What are policy expressions used for in API Management?

    <p>As attribute values or text values in any of the API Management policies</p> Signup and view all the answers

    What are developers able to do in API Management?

    <p>Subscribe to products and be members of groups</p> Signup and view all the answers

    What is the purpose of a gateway in API Management?

    <p>To decouple clients from services and address potential attack surface</p> Signup and view all the answers

    Where does all API traffic flow through when using the managed gateway in Azure API Management?

    <p>Azure</p> Signup and view all the answers

    In what scenarios is the self-hosted gateway in Azure API Management useful?

    <p>Hybrid and multicloud scenarios</p> Signup and view all the answers

    What component is responsible for proxying API requests, applying policies, and collecting telemetry?

    <p>API Management gateway</p> Signup and view all the answers

    What is the role of an API gateway in a system with multiple front- and back-end services?

    <p>Acting as a reverse proxy and routing requests from clients to services</p> Signup and view all the answers

    What are some potential problems with exposing services directly to clients?

    <p>Complex client code due to multiple endpoints and resilient failure handling</p> Signup and view all the answers

    What must public-facing services handle in terms of client interactions?

    <p>Authentication, SSL, and client rate limiting</p> Signup and view all the answers

    What does the log-to-eventhub policy do?

    <p>Sends messages in the specified format to an Event Hub defined by a Logger entity</p> Signup and view all the answers

    What is the purpose of the mock-response policy?

    <p>To mock APIs and operations by returning a mocked response to the caller</p> Signup and view all the answers

    What does the retry policy do?

    <p>Retries the execution of its child policies until the retry condition becomes false or retry count is exhausted</p> Signup and view all the answers

    What does the return-response policy do?

    <p>Aborts pipeline execution and returns either a default or custom response to the caller</p> Signup and view all the answers

    What does the control flow policy do in API Management?

    <p>Applies enclosed policy statements based on the evaluation of boolean expressions</p> Signup and view all the answers

    What happens when the condition attribute of the first element in the control flow policy equals true?

    <p>Policy statement(s) enclosed within the first element with condition attribute equals true will be applied</p> Signup and view all the answers

    What does the forward-request policy do in API Management?

    <p>Forwards the incoming request to the backend service specified in the request context</p> Signup and view all the answers

    What is the purpose of the limit-concurrency policy in API Management?

    <p>Prevents enclosed policies from executing by more than the specified number of requests at any time</p> Signup and view all the answers

    What is the purpose of a subscription key in API Management?

    <p>To secure access to published APIs</p> Signup and view all the answers

    How many keys does every subscription have in API Management?

    <p>Two keys, a primary and a secondary</p> Signup and view all the answers

    What is the relationship between a subscription key and a subscription in API Management?

    <p>A subscription key is directly related to a subscription</p> Signup and view all the answers

    What happens if a valid subscription key is not included in HTTP requests to access APIs in API Management?

    <p>The calls are rejected immediately</p> Signup and view all the answers

    How can keys be passed in HTTP requests to API endpoints?

    <p>In the request header or as a query string in the URL</p> Signup and view all the answers

    What happens if a key is not passed in the header or as a query string in the URL?

    <p>A 401 Access Denied response is received from the API gateway</p> Signup and view all the answers

    What is the default header name for passing subscription keys in HTTP requests?

    <p>Ocp-Apim-Subscription-Key</p> Signup and view all the answers

    How can developers test API calls?

    <p>Using the developer portal or command-line tools like curl</p> Signup and view all the answers

    What can be used to provide Transport Layer Security (TLS) mutual authentication between the client and the API gateway?

    <p>Certificates</p> Signup and view all the answers

    How can the API Management gateway inspect the certificate contained within the client request?

    <p>TLS client authentication</p> Signup and view all the answers

    In which tier of API Management must you explicitly enable the use of client certificates?

    <p>Consumption tier</p> Signup and view all the answers

    What is the purpose of signing client certificates?

    <p>To ensure they are not tampered with</p> Signup and view all the answers

    What is the purpose of checking the thumbprint of a client certificate in API Management?

    <p>To ensure the values in the certificate have not been altered</p> Signup and view all the answers

    Where can certificates from partners be uploaded in API Management to support multiple client certificates?

    <p>Client certificates page in the Azure portal</p> Signup and view all the answers

    What does checking the issuer and subject of a client certificate in API Management involve?

    <p>Verifying the entity that issued the certificate and the subject it was issued to</p> Signup and view all the answers

    What is the purpose of uploading certificates from partners in API Management?

    <p>To support multiple client certificates</p> Signup and view all the answers

    What is the purpose of API Management instance?

    <p>To manage and secure APIs</p> Signup and view all the answers

    Study Notes

    API Management Overview

    • Developers can create or invite others to join an API Management instance, typically done by instance administrators.
    • Policies in API Management are rules that govern the behavior of APIs, allowing for transformation, routing, and security configurations.

    Policies in API Management

    • Policies can be applied at various levels, including the API level, product level, and subscription level.
    • Popular statements used in policies include log-to-eventhub, mock-response, retry, return-response, and forward-request.

    Components of Azure API Management

    • Key components include the API gateway (for handling requests), the developer portal (for onboarding developers), and management APIs (for controlling the service).

    Products in API Management

    • Products serve to group APIs and manage access controls for different user groups and subscribers.
    • Open products allow unrestricted access, while Protected products require a subscription key for access.

    User Groups in API Management

    • Groups are utilized for managing access to products and APIs, enabling role-based access controls.
    • Immutable system groups include the Administrators, Developers, and Guests groups, which have predefined permissions.

    Core Functionalities of API Management

    • Core functionalities include traffic management, API analytics, security, documentation, and developer onboarding.

    Subscription Keys and API Access

    • Each subscription comes with one subscription key; it is required for making API requests.
    • If a valid subscription key is not provided, access will be denied for public-facing services.
    • Keys can be passed either in the HTTP header or as a query string; the default header name for subscription keys is Ocp-Apim-Subscription-Key.

    Gateway Functionality

    • The purpose of a gateway is to act as a reverse proxy that handles incoming API requests, applies necessary policies, and collects telemetry data.
    • All API traffic flows through the managed gateway when Azure API Management is utilized.

    Client Certificates and Security

    • The self-hosted gateway is beneficial in scenarios requiring on-premise API management.
    • Client certificates are used for mutual TLS authentication, ensuring secure communication between clients and the API gateway.
    • Certificates can be uploaded to support multiple clients, and checks like thumbprint validation and issuer verification enhance security.

    API Traffic Management and Client Interaction

    • Potential issues with directly exposing services to clients include security vulnerabilities, load management, and monitoring difficulties.
    • Public-facing services must handle client interactions securely, ensuring that requests are properly authenticated.

    Policy Specifics

    • The log-to-eventhub policy sends logs to Azure Event Hubs for centralized logging.
    • Mock-response policy allows for testing APIs without a backend by returning predefined responses.
    • The retry policy handles failures by automatically retrying requests under certain conditions, while the return-response policy can send a preset response and terminate processing.
    • The control flow policy allows for conditional logic in processing requests based on conditions.

    Certificates and Issuer Checks

    • Client certificates must be checked for issuer and subject validity to ensure authenticity in communication.
    • Signing client certificates and checking their thumbprints verify the identity and integrity of the client.

    Purpose of API Management Instance

    • The API Management instance serves as a centralized platform to manage APIs, automate the process of API consumption, and provide tools for both developers and administrators to effectively manage and secure their APIs.

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    Description

    Test your knowledge of API Management service with this quiz! Explore the core functionality, developer engagement, business insights, analytics, security, and protection aspects of API Management. Learn about API operations, products, and developer subscriptions.

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