Amazon ANS-C00 Practice Test - Questions Answers, Page 28
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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-12345678' to satisfy the requested number of instances." What action will resolve the availability problem?
You have a data center with a 2 connection LAG. You wish to add 2 more connections, how many LOAs must you complete?
An unfortunate situation has just come to your attention. A business critical application with sensitive data running on-prem will run out of storage disk space in 24hrs. This business critical application is dependent a very large set of routes - required for integration with other system. You make a quick but well informed decision to migrate this application quickly to AWS. You are able to quickly launch a new VPC and within it equivalent infrastructure to re-home the application. In order to complete the replication of application data and ensure the application remains operational beyond the next 24hrs, select the best implementation.
A company has 225 mobile and desktop devices and 300 partner VPNs that need access to an AWS VPC. VPN users should not be able to reach one another. Which approach will meet the technical and security requirements while minimizing costs?
You have to set up an AWS Direct Connect connection to connect your on-premises to an AWS VPC. Due to budget requirements, you can only provision a single Direct Connect port. You have two border gateway routers at your onpremises data center that can peer with the Direct Connect routers for redundancy.
Which two design methodologies, in combination, will achieve this connectivity? (Choose two.)
A company is using AWS to host all of its applications. Each application is isolated in its own Amazon VPC. Different environments such as Development, Test, and Production are also isolated in their own VPCs. The network engineer needs to automate VPC creation to enforce the company's network and security standards. Additionally, the CIDR range used in each VPC needs to be unique. Which solution meets all of these requirements?
A company runs a large-scale application on a fleet of Amazon EC2 instances that are distributed across several VPCs. A Network Load Balancer (NLB) in a separate VPC routes traffic to the EC2 instances. The NLB's VPC is peered to all the application VPCs.
The application must process millions of requests each minute during times of peak utilization. Users are reporting that the connections to the application are failing during peak times. Monitoring shows an increase in port allocation errors on the NLB.
Which action will solve this issue with the LEAST change to the architecture?
You need to create a baseline of normal traffic flow in order to implement some security changes to your organization.
What two items would be best to use? (Choose two.)
What are two routing methods used by Route 53? (Choose two.)
A company is running services in a VPC with a CIDR block of 10.5.0.0/22. End users report that they no longer can provision new resources because some of the subnets in the VPC have run out of IP addresses. How should a network engineer resolve this issue?
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