NSE7_PBC-7.2 Dumps with Practice Exam Questions Answers

Confirming to delete all the resources in Terraform will have the following impact:

D.It destroys all the resources in the state file.

• Terraform State File Role:Theterraform.tfstatefile contains a real-time mapping of the resources that Terraform manages, including their current configuration and relationships. This file tracks the actual state of resources provisioned by Terraform.
• Impact of Destruction:When Terraform prompts for confirmation to destroy resources, and 'yes' is entered, Terraform reads the state file and systematically removes all the resources that are managed as part of that state. This is not limited to a specific .tfvars file, IAM user, or resource group—it is a global action that affects all resources tracked by the state file associated with the current Terraform workspace and configuration.

References:The function of theterraform.tfstatefile and the impact of resource destruction are detailed in Terraform's official documentation. This behavior is fundamental to how Terraform manages infrastructure as code.

• Spoke VPC Routing: The 0.0.0.0/0 (default) route in the spoke VPC must point to the Transit Gateway attachment for traffic to reach other VPCs or external destinations.
• Security VPC Routing: Traffic from the security VPC needs to pass through the FortiGate for inspection and security controls. Therefore, the 0.0.0.0/0 route in the security VPC's TGW subnet routing table must point to the FortiGate's internal port.
• FortiGate Routing: The FortiGate's internal subnet must have its 0.0.0.0/0 route configured to point to the Transit Gateway attachment, allowing traffic to be returned to other VPCs or reach the internet.

In an SD-WAN TGW Connect topology, when routing traffic from a spoke VPC to a security VPC through a Transit Gateway, the mandatory initial steps include:

• From the spoke VPC internal routing table, point 0.0.0.0/0 traffic to the TGW (Option A):This step is crucial for ensuring that all traffic from the spoke VPC destined for external networks is directed through the Transit Gateway, allowing for centralized management and security inspection.
• From the security VPC TGW subnet routing table: point 0.0.0.0/0 traffic to the FortiGate internal port (Option B):Routing all traffic from the TGW subnet in the security VPC to the FortiGate's internal port ensures that traffic is subjected to the necessary security policies and inspections provided by the FortiGate appliance before it proceeds to other destinations or returns to the spoke VPCs.
• From the security VPC FortiGate internal subnet routing table, point 0.0.0.0/0 traffic to the TGW (Option D):This configuration ensures that traffic returning from the security processes handled by the FortiGate is routed back through the Transit Gateway, maintaining the integrity of the secure transit path and ensuring proper routing back to the originating spoke or onward to the internet.

References:These steps align with best practices for implementing SD-WAN solutions in a cloud environment, ensuring that all traffic is appropriately routed through security appliances for necessary controls and monitoring, asdetailed in the Fortinet SD-WAN documentation and AWS Transit Gateway connectivity guidelines.

According to the AWS documentation for Transit Gateway, a transit gateway is a network transit hub that connects VPCs and on-premises networks. A transit gateway route table is a set of rules that determines how traffic is routed among the attachments to the transit gateway1.

A transit gateway can have multiple route tables, and you can associate different attachments with different route tables. This allows you to control how traffic is routed between your VPCs and VPNs based on your network design and security requirements1.

The other options are incorrect because:

• Both the TGW attachment and propagation must be in the same TGW route table is not true. You can associate an attachment with one route table and enable propagation from another attachment to a different route table. This allows you to separate the routing domains for your attachments1.
• A TGW attachment can be associated with multiple TGW route tables is not true. You can only associate an attachment with one route table at a time. However, you can change the association at any time1.
• The TGW default route table cannot be disabled is not true. You can disable the default route table by deleting all associations and propagations from it. However, you cannot delete the default route table itself1.

1: Transit Gateways - Amazon Virtual Private Cloud

The correct answer is C and D. Use a transit VPC with hub and spoke topology to create multiple VPN connections to the on-premises data center. Use the transit gateway attachment with VPN option to create multiple VPN connections to the on-premises data center.

According to the Fortinet documentation for Public Cloud Security, a transit VPC is a VPC that serves as a global network transit center for connecting multiple VPCs, remote networks, and virtual private networks (VPNs). A transit VPC can use a hub and spoke topology to create multiple VPN connections to the on-premises data center, using the FortiGate VM as a virtual appliance that provides network security and threat prevention.A transit VPC can also leverage Equal-Cost Multi-Path (ECMP) routing to achieve higher bandwidth and load balancing across multiple VPN tunnels1.

A transit gateway is a network transit hub that connects VPCs and on-premises networks. A transit gateway attachment is a resource that connects a VPC or VPN to a transit gateway. You can use the transit gateway attachment with VPN option to create multiple VPN connections to the on-premises data center, using the FortiGate VM as a virtual appliance that provides network security and threat prevention.A transit gateway attachment with VPN option can also leverage ECMP routing to achieve higher bandwidth and load balancing across multiple VPN tunnels2.

The other options are incorrect because:

• Using ECMP and VPN to achieve higher bandwidth is not a complete solution, as it does not specify how to replace the existing VPC peering topology or how to connect the AWS VPCs to the on-premises data center.
• Using transit VPC to build multiple VPC connections to the on-premises data center is not a correct solution, as it does not specify how to use a hub and spoke topology or how to leverage ECMP routing for higher bandwidth.

1:Fortinet Documentation Library - Transit VPC on AWS2:Fortinet Documentation Library - Deploying FortiGate VMs on AWS

Immutable infrastructure is a DevOps approach that emphasizes the creation of disposable resources instead of modifying existing ones1. This approach helps to achieve stability, consistency, and predictability in IT operations by reducing the risk of configuration drift and eliminating stateful components1.

One way to implement immutable infrastructure is to use a blue-green deployment strategy, which runs two live environments for configuration changes2. The blue environment is the current production environment, while the green environment is the new version of the application or service. When the green environment is ready, the traffic is switched from blue to green, and the blue environment is destroyed or kept as a backup2. This way, there is no need to update or patch the existing infrastructure, but rather replace it with a new one.

References:

• 1: Immutable Infrastructure, Architecture, and its benefits
• 2: Introduction to Immutable Infrastructure – BMC Software | Blogs