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Q10 Single choice

You have deployed an HTTP(s) load balancer, but health checks to port 80 on the Compute Engine virtual machine instance are failing, and no traffic is sent to your instances. You want to resolve the problem.

Which commands should you run?

A
gcloud compute instances add-access-config instance-1
B
gcloud compute firewall-rules create allow-lb --network load-balancer --allow tcp --destination-ranges
130.211.0.0/22,35.191.0.0/16 --direction EGRESS
C
gcloud compute firewall-rules create allow-lb --network load-balancer --allow tcp --source-ranges
130.211.0.0/22,35.191.0.0/16 --direction INGRESS
D
gcloud compute health-checks update http health-check --unhealthy-threshold 10

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