12: Implement caching for solutions
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What is the purpose of Azure Cache for Redis?

  • Optimizing front-end development for web applications
  • Improving application performance by storing frequently accessed data in server memory (correct)
  • Providing a relational database management system
  • Enhancing network security for Azure applications

    • What does Redis bring to modern applications?

  • Advanced machine learning capabilities
  • Real-time data visualization tools
  • A critical low-latency and high-throughput data storage solution (correct)
  • Automated deployment pipelines

    • What does Azure Cache for Redis offer as a managed service?

  • Limited support for API compatibility
  • Both the Redis open-source and a commercial product from Redis Labs (correct)
  • Integration with third-party cloud platforms only
  • Exclusive access to Microsoft's proprietary database system

    • What pattern is commonly used to load data into the cache only as needed?

    <p>Cache-aside pattern</p> Signup and view all the answers

    Which type of cache provides quick access to static content compared to backend datastores?

    <p>In-memory cache</p> Signup and view all the answers

    What is commonly associated with the session store pattern in web applications?

    <p>User history data</p> Signup and view all the answers

    What method is used to defer longer running operations to be processed in sequence?

    <p>Task queuing</p> Signup and view all the answers

    Which tier of Azure Cache for Redis is ideal for development/test and noncritical workloads?

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

    Which tier of Azure Cache for Redis offers higher throughput, lower latency, better availability, and more features compared to Basic or Standard caches?

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

    Which tier of Azure Cache for Redis supports Redis modules including RediSearch, RedisBloom, and RedisTimeSeries?

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

    Which tier of Azure Cache for Redis extends Redis data storage to nonvolatile memory, reducing the overall per-GB memory cost?

    <p>Enterprise Flash</p> Signup and view all the answers

    What is the maximum number of shards that can be specified to implement clustering in Azure Cache for Redis?

    <p>10</p> Signup and view all the answers

    What command is used to increment the given value associated with a key by a specified amount in Azure Cache for Redis?

    <p>incrby [key] [amount]</p> Signup and view all the answers

    Which tier of Azure Cache for Redis extends Redis data storage to nonvolatile memory, reducing the overall per-GB memory cost?

    <p>Enterprise Flash</p> Signup and view all the answers

    What does the 'flushdb' command do in Azure Cache for Redis?

    <p>Delete all keys and values in the database</p> Signup and view all the answers

    What does the 'ping' command do in the cache?

    <p>Returns 'PONG'</p> Signup and view all the answers

    What does the 'exists [key]' command return if the key exists in the cache?

    <p>Returns '1'</p> Signup and view all the answers

    What does the 'del [key]' command do in the cache?

    <p>Deletes the value associated with the key</p> Signup and view all the answers

    Which package is commonly used as a high-performance Redis client for the.NET language?

    <p>StackExchange.Redis</p> Signup and view all the answers

    What is the main connection object in StackExchange.Redis?

    <p>ConnectionMultiplexer class</p> Signup and view all the answers

    What parameters are required to connect to a Redis server using StackExchange.Redis?

    <p>Host address, port number, and access key</p> Signup and view all the answers

    What does Azure provide as a connection string for some Redis clients?

    <p>A string bundling host address, port number, and access key</p> Signup and view all the answers

    How can you create a ConnectionMultiplexer instance in StackExchange.Redis?

    <p>Using the static ConnectionMultiplexer.Connect or ConnectionMultiplexer.ConnectAsync method</p> Signup and view all the answers

    What type represents the Redis database in StackExchange.Redis?

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

    Which type is used to represent Redis keys in StackExchange.Redis?

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

    What method is used to store a key/value pair in the Redis cache using StackExchange.Redis?

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

    What does the Execute and ExecuteAsync method return in StackExchange.Redis?

    <p>RedisResult object</p> Signup and view all the answers

    What type is used to represent values in the Redis cache in StackExchange.Redis?

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

    How can you clean up the ConnectionMultiplexer in StackExchange.Redis once you're done with it?

    <p>Dispose the ConnectionMultiplexer</p> Signup and view all the answers

    What library can be used to serialize an object into a string for caching in Redis?

    <p>Newtonsoft.Json</p> Signup and view all the answers

    What is a CDN profile in Azure CDN?

    <p>A collection of CDN endpoints</p> Signup and view all the answers

    What is the purpose of creating multiple CDN profiles in Azure CDN?

    <p>To organize CDN endpoints by different criteria</p> Signup and view all the answers

    What are the limitations of Azure CDN at the subscription level?

    <p>Default limits for various resources</p> Signup and view all the answers

    What is the key feature offered by Azure CDN?

    <p>Rapidly delivering high-bandwidth content to users</p> Signup and view all the answers

    What determines the Time To Live (TTL) duration for files in Azure CDN?

    <p>Cache-Control header in the HTTP response from the origin server</p> Signup and view all the answers

    What approach can be used to ensure that users always receive the latest version of an asset in Azure CDN?

    <p>Including a version string in the asset URL</p> Signup and view all the answers

    In Azure CDN, how can you refresh the content on the next client request?

    <p>Purge cached content from the edge nodes</p> Signup and view all the answers

    What does the Azure CLI provide to unpublish cached assets from an endpoint in Azure CDN?

    <p>Purge verb</p> Signup and view all the answers

    What feature enables you to allow or block content in specific countries/regions in Azure CDN?

    <p>Geo-filtering</p> Signup and view all the answers

    What is a recommended way to improve user experience by prepopulating the cache in Azure CDN?

    <p>Preload assets into an endpoint</p> Signup and view all the answers

    Which method is used to unpublish cached assets from an endpoint using the Azure CLI in Azure CDN?

    <p>'purge' verb</p> Signup and view all the answers

    What is a useful scenario for using Geo-filtering in Azure CDN?

    <p>Restrict access based on IP addresses</p> Signup and view all the answers

    What is a recommended strategy to refresh content when publishing a new version of a web app or replacing out-of-date assets in Azure CDN?

    <p>Purge cached content from the edge nodes</p> Signup and view all the answers

    How can you improve user experience by prepopulating the cache when a large number of assets are created in Azure CDN?

    <p>Preload assets into an endpoint</p> Signup and view all the answers

    What is the purpose of controlling caching behavior on Azure CDNs?

    <p>To minimize time and bandwidth consumption by serving fresh cached resources</p> Signup and view all the answers

    Where are caching rules set in Azure CDN Standard for Microsoft?

    <p>At the endpoint level</p> Signup and view all the answers

    Which tier provides caching rules at the endpoint level in Azure CDN Standard for Microsoft?

    <p>Standard Microsoft</p> Signup and view all the answers

    What is considered when determining if a cached resource is fresh?

    <p>The age of the resource</p> Signup and view all the answers

    How can caching behavior be changed in Azure CDN Standard for Microsoft?

    <p>By selecting caching rules in the Azure portal</p> Signup and view all the answers

    What happens when a cached resource is considered stale in a browser?

    <p>An up-to-date copy is loaded from the server</p> Signup and view all the answers

    What does a cached resource need to be considered fresh?

    <p>Age less than the defined threshold</p> Signup and view all the answers

    In which pane can caching rules be changed for an endpoint in Azure CDN Standard for Microsoft?

    <p>The Endpoint pane</p> Signup and view all the answers

    What does a browser do when it reloads a webpage and finds that a cached resource is stale?

    <p>It verifies each cached resource and loads up-to-date copies from the server as needed</p> Signup and view all the answers

    What action should be taken to apply changes in caching rules for an endpoint in Azure CDN Standard for Microsoft?

    <p>Select Caching rules in the Endpoint pane and click Save</p> Signup and view all the answers

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