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ANS-C01 Exam Dumps : Amazon AWS Certified Advanced Networking - Specialty

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Amazon AWS Certified Advanced Networking - Specialty Questions and Answers

Question 1

A company runs an application on Amazon EC2 instances. A network engineer implements a NAT gateway in the application's VPC to replace self-managed NAT instances. After the network engineer shifts traffic from the self-managed NAT instances to the NAT gateway, users begin to report issues.

During troubleshooting, the network engineer discovers that the connection to the application is closing after approximately 6 minutes of inactivity.

What should the network engineer do to resolve this issue?

Options:

A.

Check for increases in the Amazon CloudWatch IdleTimeoutCount metric for the NAT gateway. Configure TCP keepalive on the application EC2 instances.

B.

Check for increases in the Amazon CloudWatch ErrorPortAIlocation metric for the NAT gateway. Configure an HTTP timeout value on the application EC2 instances.

C.

Check for increases in the Amazon CloudWatch PacketsDropCount metric for the NAT gateway. Configure an HTTPS timeout value on the application EC2 instances.

D.

Check for decreases in the Amazon CloudWatch ActiveConnectionCount metric for the NAT gateway. Configure UDP keepalive on the application EC2 instances.

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Question 2

A company has multiple AWS accounts. Each account contains one or more VPCs. A new security guideline requires the inspection of all traffic between VPCs.

The company has deployed a transit gateway that provides connectivity between all VPCs. The company also has deployed a shared services VPC with Amazon EC2 instances that include IDS services for stateful inspection. The EC2 instances are deployed across three Availability Zones. The company has set up VPC associations and routing on the transit gateway. The company has migrated a few test VPCs to the new solution for traffic inspection.

Soon after the configuration of routing, the company receives reports of intermittent connections for traffic that crosses Availability Zones.

What should a network engineer do to resolve this issue?

Options:

A.

Modify the transit gateway VPC attachment on the shared services VPC by enabling cross-Availability Zone load balancing.

B.

Modify the transit gateway VPC attachment on the shared services VPC by enabling appliance mode support.

C.

Modify the transit gateway by selecting VPN equal-cost multi-path (ECMP) routing support.

D.

Modify the transit gateway by selecting multicast support.

Question 3

A company has an AWS account with four VPCs in the us-east-1 Region. The VPCs consist of a development VPC and three production VPCs that host various workloads.

The company has extended its on-premises data center to AWS with AWS Direct Connect by using a Direct Connect gateway. The company now wants to establish connectivity to its production VPCs and development VPC from on premises. The production VPCs are allowed to route data to each other. However, the development VPC must be isolated from the production VPCs. No data can flow between the development VPC and the production VPCs.

In preparation to implement this solution, a network engineer creates a transit gateway with a single transit gateway route table. Default route table association and default route table propagation are turned off. The network engineer attaches the production VPCs. the development VPC. and the Direct Connect gateway to the transit gateway. For each VPC route table, the network engineer adds a route to 0.0.0.0/0 with the transit gateway as the next destination.

Which combination of steps should the network engineer take next to complete this solution? (Select THREE.)

Options:

A.

Associate the production VPC attachments with the existing transit gateway route table. Propagate the routes from these attachments.

B.

Associate all the attachments with the existing transit gateway route table. Propagate the routes from these attachments.

C.

Associate the Direct Connect gateway attachment with the existing transit gateway route table. Propagate the Direct Connect gateway attachment to this route table.

D.

Change the security group inbound rules on the existing transit gateway network interfaces in the development VPC to allow connections to and from the on-premises CIDR range only.

E.

Create a new transit gateway route table. Associate the new route table with the development VPC attachment. Propagate the Direct Connect gateway and developmentVPC attachment to the new route table.

F.

Create a new transit gateway with default route table association and default route table propagation turned on. Attach the Direct Connect gateway and development VPC to the new transit gateway.