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PROFESSIONAL-CLOUD-NETWORK-ENGINEER · Question #249

Your company uses web application firewall (WAF) capabilities from a third-party cloud WAF provider. This WAF provider proxies all the HTTPS connections from internet clients, applies security…

The correct answer is C. 1. Create a new Cloud Armor backend security policy. In the policy, set the. A backend security policy is required because the Cloud Armor rules must apply to traffic after it passes through the third-party WAF and reaches the backend service. The userIpRequestHeaders[] attribute extracts the original client IP from headers inserted by the WAF (e.g…

Submitted by renata2k· Apr 18, 2026Implementing network security

Question

Your company uses web application firewall (WAF) capabilities from a third-party cloud WAF provider. This WAF provider proxies all the HTTPS connections from internet clients, applies security policies, and then opens a new HTTPS connection to the public IP address of your global Application Load Balancer in Google Cloud. Your Google Cloud workloads are the backend of this global Application Load Balancer. Currently, Cloud Am1or is not configured. You need to create a Cloud Armor security policy that blocks sessions that originate from internet clients with source IP addresses that belong to the IP_RANGE_BLOCK IP range. The block must be executed by the Cloud Armor security policy; it will not be done by the third-party cloud WAF provider. Whal should you do?

Options

  • A
    1. Create a new Cloud Armor network edge security policy. In the policy, set the
  • B
    1. Create a new Cloud Armor network edge security policy. In the policy, set the
  • C
    1. Create a new Cloud Armor backend security policy. In the policy, set the
  • D
    1. Create a new Cloud Armor backend security policy. In the policy, set the

How the community answered

(20 responses)
  • A
    15% (3)
  • B
    5% (1)
  • C
    75% (15)
  • D
    5% (1)

Explanation

A backend security policy is required because the Cloud Armor rules must apply to traffic after it passes through the third-party WAF and reaches the backend service. The userIpRequestHeaders[] attribute extracts the original client IP from headers inserted by the WAF (e.g., X-Forwarded-For). The rule checks if the client's IP falls within the IP_RANGE_BLOCK range and denies the traffic. This ensures Cloud Armor blocks traffic based on the actual client IP, as the third-party WAF creates a new connection using its IP for proxied traffic.

Topics

#Cloud Armor#Security Policies#Third-party WAF#Client IP identification

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