Amazon ANS-C01 Exam Preparation Materials

A company has expanded its network to the AWS Cloud by using a hybrid architecture with multiple AWS accounts. The company has set up ashared AWS account for the connection to its on-premises data centers and the company offices. The workloads consist of private web-basedservices for internal use. These services run in different AWS accounts. Office-based employees consume these services by using a DNS namein an on-premises DNS zone that is named example.internal.The process to register a new service that runs on AWS requires a manual and complicated change request to the internal DNS. The processinvolves many teams.The company wants to update the DNS registration process by giving the service creators access that will allow them to register their DNSrecords. A network engineer must design a solution that will achieve this goal. The solution must maximize cost-effectiveness and mustrequire the least possible number of configuration changes.Which combination of steps should the network engineer take to meet these requirements? (Choose three.)

A. Create a record for each service in its local private hosted zone (serviceA.account1.aws.example.internal). Provide this DNS record tothe employees who need access.

B. Create an Amazon Route 53 Resolver inbound endpoint in the shared account VPC. Create a conditional forwarder for a domain namedaws.example.internal on the on-premises DNS servers. Set the forwarding IP addresses to the inbound endpoint's IP addresses that werecreated.

C. Create an Amazon Route 53 Resolver rule to forward any queries made to onprem.example.internal to the on-premises DNS servers.

D. Create an Amazon Route 53 private hosted zone named aws.example.internal in the shared AWS account to resolve queries for thisdomain.

E. Launch two Amazon EC2 instances in the shared AWS account. Install BIND on each instance. Create a DNS conditional forwarder oneach BIND server to forward queries for each subdomain under aws.example.internal to the appropriate private hosted zone in each AWSaccount. Create a conditional forwarder for a domain named aws.example.internal on the on-premises DNS servers. Set the forwarding IPaddresses to the IP addresses of the BIND servers.

F. Create a private hosted zone in the shared AWS account for each account that runs the service. Configure the private hosted zone tocontain aws.example.internal in the domain (account1.aws.example.internal). Associate the private hosted zone with the VPC that runsthe service and the shared account VPC.

A European car manufacturer wants to migrate its customer-facing services and its analytics platform from two on-premises data centers tothe AWS Cloud. The company has a 50-mile (80.4 km) separation between its on-premises data centers and must maintain that separationbetween its two locations in the cloud. The company also needs failover capabilities between the two locations in the cloud.The company's infrastructure team creates several accounts to separate workloads and responsibilities. The company provisions resources inthe eu-west-3 Region and in the eu-central-1 Region. The company selects an AWS Direct Connect Partner in each Region and requests tworesilient 1 Gbps fiber connections from each provider.The company's network engineer must establish a connection between all VPCs in the accounts and between the on-premises network andthe AWS Cloud. The solution must provide access to all services in both Regions in case of network issues.Which solution will meet these requirements?

A. Create a Direct Connect gateway. Create a private VIF on each of the Direct Connect connections. Attach the private VIFs to the DirectConnect gateway. Use equal-cost multi-path (ECMP) routing to aggregate the four connections across the two Regions. Attach the DirectConnect gateway directly to each VPC's virtual private gateway.

B. Create a Direct Connect gateway. Create a transit gateway. Attach the transit gateway to the Direct Connect gateway. Create a transitVIF on each of the Direct Connect connections. Attach the transit VIFs to the Direct Connect gateway. Use a link aggregation group (LAG)to aggregate the four connections across the two Regions. Attach the transit gateway directly to each VPC.

C. Create a Direct Connect gateway. Create a transit gateway in each Region. Attach the transit gateways to the Direct Connect gateway.Create a transit VIF on each of the Direct Connect connections. Attach the transit VIFs to the Direct Connect gateway. Peer the transitgateways. Attach the transit gateways in each Region to the VPCs in the same Region.

D. Create a Direct Connect gateway. Create a private VIF on each of the Direct Connect connections. Attach the private VIFs to the DirectConnect gateway. Use a link aggregation group (LAG) to aggregate the four connections across the two Regions. Create a transit gateway.Attach the transit gateway to the Direct Connect gateway. Attach the transit gateway directly to each VPC.

A company has AWS accounts in an organization in AWS Organizations. The company has implemented Amazon VPC IP Address Manager (IPAM) in its networking AWS account. The company is using AWS Resource Access Manager (AWS RAM) to share IPAM pools with other AWS accounts. The company has created a top-level pool with a CIDR block of 10.0.0.0/8. For each AWS account, the company has created an IPAM pool within the top-level pool.

A network engineer needs to implement a solution to ensure that users in each AWS account cannot create new VPCs. The solution also must prevent users from associating a CIDR block with existing VPCs unless the CIDR block is from the IPAM pool for that account.

Which solution will meet these requirements?

A. Create a new AWS Config rule to find all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke an AWS Lambda function to delete these VPCs.

B. Create a new SCP in Organizations. Add a condition that denies the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions if the Ipv4IpamPoolId context key value is not the ID of an IPAM pool.

C. Create an AWS Lambda function to check for and delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke the Lambda function at regular intervals.

D. Create an Amazon EventBridge rule to check for AWS CloudTrail events for the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions. Use the rule to invoke an AWS Lambda function to delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool.