3.2 Configuring Cloud CDN. Considerations Include: PROFESSIONAL-CLOUD-NETWORK-ENGINEER Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   An enterprise hosts a public API on an on-premises server that is reachable via a public IP address. They want to use Cloud CDN to cache API responses and reduce latency for their global user base. The on-premises server is not a Google Cloud resource. What is the correct way to configure Cloud CDN for this origin?

   • ACreate a backend bucket and set the on-premises server's URL as the bucket's origin.
   • BCreate an internet NEG with the on-premises server's public IP and port, then attach it to a backend service with Cloud CDN enabled.
   • CMigrate the on-premises server to a managed instance group in Google Cloud.
   • DUse a Cloud Run service as a proxy to the on-premises server and enable Cloud CDN on that.
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2. 17application · medium

   A news website uses Cloud CDN with a backend bucket to serve article images. An editor accidentally published a sensitive image that must be removed from public access immediately. The image is at the URL path `/images/leak.png`. The team needs to ensure the image is no longer served from any edge cache. What is the most appropriate action?

   • ADelete the object from the Cloud Storage bucket and invalidate the cache for `/images/leak.png`.
   • BOnly delete the object from the Cloud Storage bucket.
   • CChange the object's Cache-Control header to no-store.
   • DInvalidate the cache for the entire `/images/` prefix.
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4. 18application · medium

   A company runs a REST API on Cloud Run that serves product data. The API responses are identical for all users and change only when the product catalog is updated (a few times per day). They want to reduce latency for global users and reduce load on the Cloud Run service. They decide to use Cloud CDN. What must they configure to enable Cloud CDN for the Cloud Run service?

   • ACreate a backend service with the Cloud Run service as the origin, then enable Cloud CDN on that backend service.
   • BCreate an internet NEG pointing to the Cloud Run service and use it as the backend.
   • CEnable Cloud CDN directly on the Cloud Run service's built-in URL.
   • DCreate a backend bucket and add the Cloud Run service URL as the bucket's origin.
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5. 19foundation · easy

   What is the correct way to enable Cloud CDN for a Cloud Storage bucket?

   • AUse a URL map to point directly to the bucket without a backend bucket.
   • BCreate a backend bucket that references the bucket and enable Cloud CDN on it.
   • CCreate a backend service with the bucket as an instance group.
   • DEnable Cloud CDN directly on the bucket's IAM policy.
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6. 20foundation · easy

   What is a primary benefit of using Cloud CDN for a global web application?

   • AIt provides a firewall to protect the origin from malicious traffic.
   • BIt reduces latency by serving content from edge locations closer to users.
   • CIt guarantees 100% availability for the application.
   • DIt replaces the need for a load balancer in front of the origin.
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