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Google Professional Cloud Network Engineer

169 Questions120 Minutes70% Passing Score▣ Updated: Sep 2026

Question 49 of 169

Choose 2
Your company has just launched a new critical revenue-generating web application. You deployed the application for scalability using managed instance groups, autoscaling, and a network load balancer as frontend. One day, you notice severe bursty traffic that the caused autoscaling to reach the maximum number of instances, and users of your application cannot complete transactions. After an investigation, you think it as a DDOS attack. You want to quickly restore user access to your application and allow successful transactions while minimizing cost.
Which two steps should you take? (Choose two.)
AUse Cloud Armor to blacklist the attacker's IP addresses. Most Voted
BIncrease the maximum autoscaling backend to accommodate the severe bursty traffic. Most Voted
CCreate a global HTTP(s) load balancer and move your application backend to this load balancer.
DShut down the entire application in GCP for a few hours. The attack will stop when the application is offline.
ESSH into the backend compute engine instances, and view the auth logs and syslogs to further understand the nature of the attack.
Correct Answer: A, B

Use Cloud Armor to blacklist the attacker's IP addresses. Most Voted

Explanation

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