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Exam Professional Cloud Network Engineer All Questions

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Exam Professional Cloud Network Engineer topic 1 question 93 discussion

Actual exam question from Google's Professional Cloud Network Engineer
Question #: 93
Topic #: 1
[All Professional Cloud Network Engineer Questions]

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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Suggested Answer: C 🗳️

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ccieman2016
Highly Voted 8 months, 1 week ago
Selected Answer: C
100% sure for C. Allow source range LB check: 130.211.0.0/22,35.191.0.0/16.
upvoted 6 times
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nosense
Highly Voted 8 months, 1 week ago
Selected Answer: C
c is right source: https://cloud.google.com/load-balancing/docs/health-checks
upvoted 5 times
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RKS_2021
Most Recent 1 week, 5 days ago
Selected Answer: C
C is right https://cloud.google.com/load-balancing/docs/health-check-concepts
upvoted 1 times
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pk349
6 months, 3 weeks ago
• 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 ***** The following example creates an ingress firewall rule for the following load balancers: • Internal TCP/UDP load balancer • Internal HTTP(S) load balancer • External TCP proxy load balancer • Internal regional TCP proxy load balancer • External SSL proxy load balancer • Global external HTTP(S) load balancer • Regional external HTTP(S) load balancer For these load balancers, the source IP ranges for health checks (including legacy health checks if used for HTTP(S) Load Balancing) are:
upvoted 1 times
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pfilourenco
8 months, 1 week ago
Selected Answer: C
c is right source: https://cloud.google.com/load-balancing/docs/health-checks
upvoted 3 times
AzureDP900
7 months, 4 weeks ago
Yes, C is right. 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
upvoted 1 times
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