ANS-C01AWS Certified Advanced Networking Specialty Exam
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ANS-C01 Online Practice Questions and Answers
A company has hundreds of VPCs on AWS. All the VPCs access the public endpoints of Amazon S3 and AWS Systems Manager through NATgateways. All the traffic from the VPCs to Amazon S3 and Systems Manager travels through the NAT gateways. The company's networkengineer must centralize access to these services and must eliminate the need to use public endpoints.Which solution will meet these requirements with the LEAST operational overhead?
A. Create a central egress VPC that has private NAT gateways. Connect all the VPCs to the central egress VPC by using AWS TransitGateway. Use the private NAT gateways to connect to Amazon S3 and Systems Manager by using private IP addresses.
B. Create a central shared services VPC. In the central shared services VPC, create interface VPC endpoints for Amazon S3 and SystemsManager to access. Ensure that private DNS is turned off. Connect all the VPCs to the central shared services VPC by using AWS TransitGateway. Create an Amazon Route 53 forwarding rule for each interface VPC endpoint. Associate the forwarding rules with all the VPCs.Forward DNS queries to the interface VPC endpoints in the shared services VPC.
C. Create a central shared services VPIn the central shared services VPC, create interface VPC endpoints for Amazon S3 and SystemsManager to access. Ensure that private DNS is turned off. Connect all the VPCs to the central shared services VPC by using AWS TransitGateway. Create an Amazon Route 53 private hosted zone with a full service endpoint name for Amazon S3 and Systems Manager.Associate the private hosted zones with all the VPCs. Create an alias record in each private hosted zone with the full AWS serviceendpoint pointing to the interface VPC endpoint in the shared services VPC.
D. Create a central shared services VPC. In the central shared services VPC, create interface VPC endpoints for Amazon S3 and SystemsManager to access. Connect all the VPCs to the central shared services VPC by using AWS Transit Gateway. Ensure that private DNS isturned on for the interface VPC endpoints and that the transit gateway is created with DNS support turned on.
A company runs an application on Amazon EC2 instances. A network engineer implements a NAT gateway in the application's VPC to replaceself-managed NAT instances. After the network engineer shifts traffic from the self-managed NAT instances to the NAT gateway, users begin toreport issues.During troubleshooting, the network engineer discovers that the connection to the application is closing after approximately 6 minutes ofinactivity.What should the network engineer do to resolve this issue?
A. Check for increases in the IdleTimeoutCount Amazon CloudWatch metric for the NAT gateway. Configure TCP keepalive on theapplication EC2 instances.
B. Check for increases in the ErrorPortAllocation Amazon CloudWatch metric for the NAT gateway. Configure an HTTP timeout value on theapplication EC2 instances.
C. Check for increases in the PacketsDropCount Amazon CloudWatch metric for the NAT gateway. Configure an HTTPS timeout value onthe application EC2 instances.
D. Check for decreases in the ActiveConnectionCount Amazon CloudWatch metric for the NAT gateway. Configure UDP keepalive on theapplication EC2 instances.
A company wants to migrate its DNS registrar and DNS hosting to Amazon Route 53. The company website receives tens of thousands of visitseach day, and the company's current DNS provider cannot keep up. The company wants to migrate as quickly as possible but cannot tolerateany downtime.Which solution will meet these requirements?
A. Transfer the domain name to Route 53. Create a Route 53 private hosted zone, and copy all the existing DNS records. Update the nameservers on the domain to use the name servers that are specified in the newly created private hosted zone.
B. Copy all DNS records from the existing DNS servers to a Route 53 private hosted zone. Update the name servers with the existingregistrar to use the private hosted zone name servers. Transfer the domain name to Route 53. Ensure that all the changes havepropagated.
C. Transfer the domain name to Route 53. Create a Route 53 public hosted zone, and copy all the existing DNS records. Set the TTL valueon each record to 1 second. Update the name servers on the domain to use the name servers that are specified in the newly createdpublic hosted zone.
D. Copy all DNS records from the existing DNS servers to a Route 53 public hosted zone. Update the name servers with the existingregistrar to use the Route 53 name servers for the hosted zone. When the changes have propagated, perform a domain name transfer toRoute 53.
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Amazon ANS-C01 exam official information: This credential helps organizations identify and develop talent with critical skills for implementing cloud initiatives. Earning AWS Certified Advanced Networking - Specialty validates expertise in designing and maintaining network architecture for the breadth of AWS services.
