You want to configure autohealing for network load balancing for a group of Compute Engine instances that run in multiple zones, using the fewest possible steps.
You need to configure re-creation of VMs if they are unresponsive after 3 attempts of 10 seconds each. What should you do?
To configure autohealing for a group of Compute Engine instances with a requirement to recreate VMs if they are unresponsive after a specified number of attempts, you need to use a managed instance group (MIG) with an autohealing policy. By setting the Autohealing health check to healthy (HTTP), the MIG can automatically recreate instances that fail the specified health checks. This setup ensures that instances are monitored and recreated if they are unresponsive, meeting the described criteria for autohealing without needing additional load balancer configurations.
C, Agreed reference : https://cloud.google.com/compute/docs/tutorials/high-availability-autohealing Pro Tip: Use separate health checks for load balancing and for autohealing. Health checks for load balancing detect unresponsive instances and direct traffic away from them. Health checks for autohealing detect and recreate failed instances, so they should be less aggressive than load balancing health checks. Using the same health check for these services would remove the distinction between unresponsive instances and failed instances, causing unnecessary latency and unavailability for your users.
I also vote for C go to gcp console create a httpa load balancer and in the health check settings take your mouse to question mark it says """Ensures that requests are sent only to instances that are up and running""" so its not recreating, if the vm not working it redirect to one which work. go to gpc console create MIG and check the questions mark of Autohealing health check settings it says """Autohealing allows recreating VM instances when needed. You can use a health check to recreate a VM instance if the health check finds it unresponsive. If you don't select a health check, Compute Engine will recreate VM instances only when they're not running.""" hope this help :)
A. Create an HTTP load balancer with a backend configuration that references an existing instance group. Set the health check to healthy(HTTP) This is a possible answer. This answer assumes that the existing backend is configured correctly. B. Create an HTTP load balancer with a backend configuration that references an existing instance group. Define a balancing mode and set the maximum RPS to 10. This is a possible answer. This answer assumes that the existing backend is configured correctly. This answer adds an additional step over answer A. C. Create a managed instance group. Set the Autohealing health check to healthy(HTTP) This is only a partial solution. The default configuration is auto scaling enabled. You still need to create the HTTP Load Balancer. D. Create a managed instance group. Verify that the auto scaling setting is on. This is only a partial solution. Creating a Managed Instance Group with Auto Scaling is required, but you still need to create the HTTP Load Balancer. Therefore the best answer is A in my opinion.
It's A. Managed group already exists so create a LB with health checks. If you go for C, you will have to create a LB anyway so it's more steps to achieve the goal
https://www.youtube.com/watch?v=dT7xDEtALPQ&list=PLIivdWyY5sqIij_cgINUHZDMnGjVx3rxi&index=36 step-1: go to the instance group step-2: click edit step-3: scroll down you will see auto-healing off by default change to ON step-4: create a health check saying 10 seconds as CHECK INTERVAL and UNHEALTHY THRESHOLD=3
It can't be A as a load balancer does not re-create unhealthy instances, as per the requirement. Has to be C https://cloud.google.com/compute/docs/instance-groups
I hope you saw that in the questions is stated: "network load balancing"
it cannot be option A because as you said, load balancer with the health check is already present and now the problem is simply auto healing. so we need to focus only on recreation which can happen only if option C is correct
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I also vote for C
Answe C
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C is the right answer
The correct answer is C. Managed instance groups are groups of homogeneous Compute Engine instances that are managed as a single entity. They can be used to distribute traffic across multiple instances and to provide high availability. Autohealing is a feature of managed instance groups that automatically replaces instances that fail health checks. You can configure autohealing to recreate instances if they are unresponsive after a certain number of attempts. To configure autohealing for network load balancing, you need to create a managed instance group and set the Autohealing health check to healthy (HTTP). The health check will periodically probe the instances in the group to see if they are responding. If an instance fails the health check, autohealing will recreate it.
C is Correct Answer
The answer is C
C is correct
C is Correct!
C is correct.
C is Correct
Correct Answer is D
A,B,C are regarding http whereas question is about network Lb. So Option D is correct