Amazon Web Services passcert ans-c01 Vce Exam Download by Zack q0 vce pdf

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Exam Name:	Amazon AWS Certified Advanced Networking - Specialty
Exam Code:	ANS-C01 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Specialty
Questions:	288 Q&A's	Shared By:	zack

Question 72

An organization launched an IPv6-only web portal to support IPv6-native mobile clients. Front-end instances launch in an Amazon VPC associated with an appropriate IPv6 CIDR. The VPC IPv4 CIDR is fully utilized. A single subnet exists in each of two Availability Zones with appropriately configured IPv6 CIDR associations. Auto Scaling is properly configured, and no Elastic Load Balancing is used.

Customers say the service is unavailable during peak load times. The network engineer attempts to launch an instance manually and receives the following message: “There are not enough free addresses in subnet ‘subnet-12345677’ to satisfy the requested number of instances.”

What action will resolve the availability problem?

Options:

Create a new subnet using a VPC secondary IPv6 CIDR, and associate an IPv6 CIDR. Include the new subnet in the Auto Scaling group.

Create a new subnet using a VPC secondary IPv4 CIDR, and associate an IPv6 CIDR. Include the new subnet in the Auto Scaling group.

Resize the IPv6 CIDR on each of the existing subnets. Modify the Auto Scaling group maximum number of instances.

Add a secondary IPv4 CIDR to the Amazon VPC. Assign secondary IPv4 address space to each of the existing subnets.

Discussion

Question 73

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:

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

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

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

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

Discussion

Question 74

A company runs applications in two VPCs that are in separate AWS Regions. One VPC is in the us-east-1 Region. The second VPC is in the us-west-1 Region. The company needs to establish connectivity between the two VPCs. The company also needs to connect the VPCs to applications that run in an on-premises data center.

The current traffic requirement between the VPCs is 50 ТВ per month. The company expects traffic volume between the VPCs to increase. The traffic requirement from the VPCs to the on-premises data center is 10 ТВ per month. The company expects the traffic between the VPCs and the data center to remain constant.

Which solution will meet these requirements MOST cost-effectively?

Options:

Create a transit gateway in each Region. Create VPN connections from the transit gateways to the on-premises firewall. Create a peering connection between the transit gateways.

Create a virtual private gateway in each Region. Create VPN connections from the on-premises firewall to the virtual private gateways. Configure the on-premises firewall to route the traffic between the two VPCs.

Create a virtual private gateway in each Region. Create VPN connections from the on-premises firewall to the virtual private gateways. Create a VPC peering connection between the two VPCs.

Create a virtual private gateway in each Region. Create VPN connections from the on-premises firewall to the virtual private gateways. Create a VPN connection between the virtual private gateways.

Discussion

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Question 75

A company is using a NAT gateway to allow internet connectivity for private subnets in a VPC in the us-west-2 Region. After a security audit, the company needs to remove the NAT gateway.

In the private subnets, the company has resources that use the unified Amazon CloudWatch agent. A network engineer must create a solution to ensure that the unified CloudWatch agent continues to work after the removal of the NAT gateway.

Which combination of steps should the network engineer take to meet these requirements? (Choose three.)

Options:

Validate that private DNS is enabled on the VPC by setting the enableDnsHostnames VPC attribute and the enableDnsSupport VPC attribute to true.

Create a new security group with an entry to allow outbound traffic that uses the TCP protocol on port 443 to destination 0.0.0.0/0

Create a new security group with entries to allow inbound traffic that uses the TCP protocol on port 443 from the IP prefixes of the private subnets.

Create the following interface VPC endpoints in the VPC: com.amazonaws.us-west-2.logs and com.amazonaws.us-west-2.monitoring. Associate the new security group with the endpoint network interfaces.

Create the following interface VPC endpoint in the VPC: com.amazonaws.us-west-2.cloudwatch. Associate the new security group with the endpoint network interfaces.

Associate the VPC endpoint or endpoints with route tables that the private subnets use.

Discussion

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