Sure Pass Exam NSE7_PBC-7.2 PDF

When deploying resources in multiple places and regions in the public cloud using Terraform, the most efficient way is:

A. Use multiple terraform.tfvars files with a variables.tf file.

Terraform.tfvars File: This file is used to assign values to variables defined in your Terraform configuration. By having multiple .tfvars files, you can define different sets of values for different deployments, such as for different regions or environments, without changing the main configuration.

Variables.tf File: This file contains the definition of variables that will be used within your Terraform configuration. It works in conjunction with terraform.tfvars files, allowing you to parameterize your configuration so that you can deploy the same template in multiple environments with different variables.

References: This method is outlined in Terraform's official documentation and is a best practice for reusing code for different environments in infrastructure as code (IaC) deployments.

The two best connection solutions available between your company headquarters, branch sites, and the Azure vWAN hub are A. ExpressRoute and E. VPN Gateway.

According to the Azure documentation for Virtual WAN, ExpressRoute and VPN Gateway are two of the supported connectivity options for connecting your on-premises sites and Azure virtual networks to the Azure vWAN hub1. These options provide secure, reliable, and high-performance connectivity for your network traffic.

ExpressRoute is a service that lets you create private connections between your on-premises sites and Azure. ExpressRoute connections do not go over the public internet, and offer more reliability, faster speeds, lower latencies, and higher security than typical connections over the internet2.

VPN Gateway is a service that lets you create encrypted connections between your on-premises sites and Azure over the internet using IPsec/IKE protocols. VPN Gateway also supports point-to-site VPN connections for individual clients using OpenVPN or IKEv2 protocols3.

The other options are incorrect because:

GRE tunnels are not a supported connectivity option for Azure vWAN. GRE is a protocol that encapsulates packets for tunneling purposes. GRE tunnels are established between the connect attachment and your appliance in Azure vWAN4.

SSL VPN connections are not a supported connectivity option for Azure vWAN. SSL VPN is a type of VPN that uses the Secure Sockets Layer (SSL) protocol to secure the connection between a client and a server. SSL VPN is not compatible with the Azure vWAN hub5.

An L2TP connection is not a supported connectivity option for Azure vWAN. L2TP is a protocol that creates a tunnel between two endpoints at the data link layer (Layer 2) of the OSI model. L2TP is not compatible with the Azure vWAN hub.

1: Azure Virtual WAN Overview | Microsoft Learn 2: [ExpressRoute overview - Azure ExpressRoute | Microsoft Docs] 3: [VPN Gateway - Virtual Networks | Microsoft Azure] 4: [Transit Gateway Connect - Amazon Virtual Private Cloud] 5: [SSL VPN - Wikipedia] : [Layer 2 Tunneling Protocol - Wikipedia]

When using an AWS CloudFormation template to add a new spoke to an existing transit VPC environment, the necessary components are:

The BGPASN value used for the transit VPC (Option C): BGP Autonomous System Number (ASN) is required for setting up BGP routing between the transit VPC and the new spoke. This number uniquely identifies the system in BGP routing and is crucial for correct routing and avoiding routing conflicts.

The tag value of the spoke (Option D): Tags in AWS are used to identify and manage resources. The tag value assigned to a spoke VPC helps in organizing, managing, and locating the VPC within the larger AWS environment. Tags are essential for automation scripts and policies that depend on specific identifiers to apply configurations or rules.

References: AWS CloudFormation and AWS Transit Gateway documentation provide guidance on the use of BGPASN and tags for managing and automating VPC deployments effectively.