Fortinet FCP_WCS_AD-7.4 Practice Test - Questions Answers, Page 4

Symmetric Traffic Flow with SNAT:

In active-active (A-A) clusters, symmetric traffic flow is essential for maintaining session integrity across multiple instances. Source Network Address Translation (SNAT) is performed inbound to ensure that return traffic is routed correctly (Option A).

Load Balancer Requirement:

A-A clusters require a load balancer to distribute incoming traffic evenly across the active instances. This is crucial for balancing the load and providing high availability (Option C).

API Calls and Failovers:

Option B is incorrect because failovers in A-A clusters do not typically rely on API calls but are managed by the load balancer and the clustering mechanism itself.

Software-Defined Network (SDN) Failover:

Option D is incorrect as SDN is not specifically required for performing failovers in A-A clusters. The failover mechanism is typically managed by the load balancer and FortiGate's clustering technology.

FortiGate High Availability on AWS: FortiGate HA

AWS Elastic Load Balancing: AWS ELB

Understanding VPC Peering:

VPC peering connections allow instances in one VPC to communicate with instances in another VPC. Peering is a one-to-one relationship between two VPCs.

Transit Routing Limitation:

AWS VPC peering connections do not support transitive peering. This means that a packet originating in VPC B cannot be routed through VPC A to reach VPC C. Each pair of VPCs must have its own peering connection.

Routing Table Configuration:

Even if you add a route in the VPC A routing table for the 192.168.0.0/16 network, it won't allow VPC B to communicate with VPC C because of the non-transitive nature of VPC peering.

Comparison with Other Options:

Option A is incorrect because adding a route in VPC A does not overcome the limitation of non-transitive peering.

Option C is incorrect because associating pcx-23232323 with VPC B is not how VPC peering works.

Option D is incorrect because you can create a separate peering connection between VPC B and VPC C, which is the required approach for communication between these VPCs.

AWS VPC Peering Guide: VPC Peering

Limitations of VPC Peering: AWS VPC Peering Limitations

Dynamic Address Object Update:

The debug output shows that the IP address of the AWS Windows Server Lab has been updated automatically, indicating that the dynamic address object feature is working as intended. This allows FortiGate to adapt to changes in the IP addresses of AWS instances dynamically (Option A).

SDN Connector Configuration:

The messages in the debug output confirm that the SDN connector is able to retrieve instance information and update the firewall address objects successfully. This implies that the SDN connector is correctly configured and has the necessary permissions (Option C).

Manual Change and Permissions:

Option B is incorrect because while the address object could theoretically be changed manually, this is not inferred from the debug output.

Option D is incorrect because the debug output does not indicate that the AWS user account must have full administrative rights. The required permissions are typically more scoped to specific actions related to SDN.

FortiGate AWS Integration Guide: FortiGate on AWS

AWS IAM Policies for SDN: AWS IAM Policies