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Exam Professional Cloud Developer topic 1 question 143 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 143
Topic #: 1
[All Professional Cloud Developer Questions]

You need to deploy a new European version of a website hosted on Google Kubernetes Engine. The current and new websites must be accessed via the same HTTP(S) load balancer's external IP address, but have different domain names. What should you do?

  • A. Define a new Ingress resource with a host rule matching the new domain
  • B. Modify the existing Ingress resource with a host rule matching the new domain
  • C. Create a new Service of type LoadBalancer specifying the existing IP address as the loadBalancerIP
  • D. Generate a new Ingress resource and specify the existing IP address as the kubernetes.io/ingress.global-static-ip-name annotation value
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Suggested Answer: B 🗳️
by kisswd at Dec. 4, 2022, 12:50 a.m.

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thewalker
2 months, 2 weeks ago
Selected Answer: B
Single Load Balancer with Multiple Host Rules: In Google Kubernetes Engine, you can configure a single Ingress resource with multiple host rules that route traffic based on different domain names. This allows you to use the same load balancer but handle traffic differently depending on the domain. By modifying the existing Ingress resource to include a host rule for the new domain, the same load balancer IP can be used to serve both the current website and the new European version. Host Rule Matching: Host rules in the Ingress resource enable domain-based routing, where traffic is directed to the correct service based on the requested domain. This is ideal for scenarios like yours where you need to serve multiple websites under the same load balancer but different domain names.
upvoted 1 times
thewalker
2 months, 2 weeks ago
A. New Ingress resource: Defining a new Ingress resource with a host rule would create a second Ingress resource, which could lead to conflicts or issues since you want to use the same external IP. The existing Ingress should be modified instead. C. New Service with LoadBalancer type: This would create a new load balancer, which goes against the requirement to use the same external IP. Also, setting the loadBalancerIP does not achieve domain-based routing. D. New Ingress resource with static IP: While this allows you to assign an existing static IP, it's unnecessary if you're already using the same load balancer. Modifying the existing Ingress with additional host rules is more efficient and aligns with the goal.
upvoted 1 times
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__rajan__
1 year, 2 months ago
Selected Answer: B
B is correct.
upvoted 1 times
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purushi
1 year, 3 months ago
Selected Answer: B
Right answer is B. Existing Ingress resource needs to be updated to add new domain for the new service that runs within the cluster of worker nodes. It looks like this: User ---> HTTP(S) Load balance IP --------> Domain 1 -----> Older version of application. --------> Domain 2 -----> New version of application.
upvoted 1 times
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omermahgoub
1 year, 10 months ago
Selected Answer: B
Based on the requirements and the references https://kubernetes.io/docs/concepts/services-networking/ingress/#name-based-virtual-hosting https://cloud.google.com/kubernetes-engine/docs/tutorials/configuring-domain-name-static-ip B. You should modify the existing Ingress resource with a host rule matching the new domain. This will allow you to route traffic to the new website while still using the same IP address and load balancer. This approach allows you to use name-based virtual hosting, which supports routing HTTP traffic to multiple host names at the same IP address. It also enables you to reuse the existing IP address and load balancer, which means that the existing website and the new website can be accessed through the same IP address while having different domain names.
upvoted 1 times
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zellck
1 year, 11 months ago
Selected Answer: B
B is the answer. https://kubernetes.io/docs/concepts/services-networking/ingress/#name-based-virtual-hosting Name-based virtual hosts support routing HTTP traffic to multiple host names at the same IP address.
upvoted 1 times
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gardislan18
1 year, 11 months ago
Selected Answer: D
Answer is D https://cloud.google.com/kubernetes-engine/docs/tutorials/configuring-domain-name-static-ip
upvoted 1 times
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kisswd
1 year, 11 months ago
Selected Answer: B
"must be accessed via the same HTTP(S) load balancer's external IP address" means re-use the existing ingress resource
upvoted 3 times
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