Exam FCP_WCS_AD-7.4 topic 1 question 35 discussion

D. IP addressing and subnetting are not shared is the correct answer. In an active-passive (A-P) FortiGate cluster deployed across multiple availability zones (AZs), each AZ operates independently with its own set of subnets and IP addresses. The IP addressing and subnetting between the instances in different AZs are not shared, which is a key distinction compared to deploying in the same AZ, where such resources may be more closely integrated. Here's why the other options are incorrect: A: The FortiGate devices in an A-P setup do not act as a single, logical instance; they operate in a failover configuration, with one being active and the other passive. B: Secondary IP addressing is used in both single AZ and multi-AZ deployments, so this is not a unique characteristic of a multi-AZ setup. C: The number of subnets required typically increases when deploying across multiple AZs, as each AZ requires its own subnet for redundancy and separation.

D, p.132

D is correct Enhanced Redundancy: Deploying an active-passive (A-P) FortiGate cluster across two availability zones (AZs) provides enhanced redundancy by ensuring that if one AZ fails, the other can take over, maintaining high availability and uptime. IP Addressing and Subnetting: One of the major differences when deploying across different AZs compared to the same AZ is that IP addressing and subnetting are not shared between the instances. Each AZ operates independently with its own set of subnets and IP addresses, which must be managed separately (Option D). Other Options Analysis: Option A is incorrect because the FortiGate devices in an A-P setup do not act as a single logical instance; they operate in a failover setup. Option B is incorrect because secondary IP address configuration is used in both single AZ and multi-AZ deployments. Option C is incorrect because the number of subnets required is typically more when deploying across multiple AZs for redundancy.