Amazon ANS-C00 Practice Test - Questions Answers, Page 22
List of questions
Question 211

You work for an international corporation that uses AWS. Due to regulations, you are now required to route the US and China to two different websites. You set up the records and now no other countries can access your site. Why is this?
Explanation:
Explanation:
A default record is required for traffic that does not match a geolocation criteria to follow.
Question 212

A network engineer must provide additional safeguards to protect encrypted data at Application Load Balancers (ALBs) through the use of a unique random session key. What should the network engineer do to meet this requirement?
Explanation:
Explanation:
Reference: https://aws.amazon.com/about-aws/whats-new/2014/02/19/elastic-load-balancing-perfect-forward-secrecy-andmore-new-security-features/
Question 213

A company uses an AWS Site-to-Site VPN to connect its corporate network. The company recently added an AWS Direct Connect connection. A network engineer wants all traffic to use the Direct Connect connection, and for the VPN to be used as backup. However, after the Direct Connect connection was added, traffic continued to pass through the VPN connection. What should the network engineer do to route the traffic through the Direct Connect connection?
Explanation:
Explanation:
If you are advertising the same routes toward the AWS VPC, the Direct Connect path is always being preferred, regardless of AS path prepending. Reference: https://aws.amazon.com/premiumsupport/knowledge-center/configure-vpn-backup-dx/
Question 214

A company recently migrated its Amazon EC2 instances to VPC private subnets to satisfy a security compliance requirement. The EC2 instances now use a NAT gateway for internet access. After the migration, some long-running database queries from private EC2 instances to a publicly accessible third-party database no longer receive responses. The database query logs reveal that the queries successfully completed after 7 minutes but that the client EC2 instances never received the response.
Which configuration change should a network engineer implement to resolve this issue?
Question 215

An insurance company is planning the migration of workloads from its on-premises data center to the AWS Cloud. The company requires end-to-end domain name resolution. Bi-directional DNS resolution between AWS and the existing onpremises environments must be established. The workloads will be migrated into multiple VPCs. The workloads also have dependencies on each other, and not all the workloads will be migrated at the same time. Which solution meets these requirements?
Explanation:
Explanation:
Reference: https://d1.awsstatic.com/whitepapers/hybrid-cloud-dns-options-for-vpc.pdf
Question 216

A customer is using ABC Telecom as a network provider. The customer has 10 different offices connected to ABC Telecom's MPLS backbone. The customer is setting up an AWS Direct Connect connection to AWS and has provided the LOA-CFA to ABC Telecom. ABC Telecom has terminated the Direct Connect circuit into their MPLS backbone. To uniquely identify the customer's traffic over the MPLS backbone, the customer must encapsulate all traffic with VLAN tag 100. The customer wants to send traffic to multiple VPCs.
Which two steps should be taken to meet the customer's requirement? (Choose two.)
Question 217

A company has an application running on Amazon EC2 instances in a private subnet that connects to a third-party service provider's public HTTP endpoint through a NAT gateway. As request rates increase, new connections are starting to fail. At the same time, the ErrorPortAllocation Amazon CloudWatch metric count for the NAT gateway is increasing. Which of the following actions should improve the connectivity issues? (Choose two.)
Explanation:
Explanation:
Reference: https://aws.amazon.com/premiumsupport/knowledge-center/vpc-resolve-port-allocation-errors/
Question 218

You have two VPCs that require DNS resolution from your on-premises data center. You want to have a DNS server in the cloud, but you don't want to have multiple DNS servers. What two steps should you take? (Choose two.)
Explanation:
Explanation:
Peer the VPCs and configure DHCP option sets. A VPN is not necessary. You cannot create a Route 53 record to forward DNS requests.
Question 219

What are two reasons to have multiple IP addresses or interfaces on one server? (Choose two.)
Explanation:
Explanation:
You cannot bind multiple interfaces for faster speeds on AWS
Question 220

A user has enabled detailed CloudWatch monitoring with the AWS Simple Notification Service. Which of the below mentioned statements helps the user understand detailed monitoring better?
Explanation:
Explanation:
CloudWatch is used to monitor AWS as well as the custom services. It provides either basic or detailed monitoring for the supported AWS products. In basic monitoring, a service sends data points to CloudWatch every five minutes, while in detailed monitoring a service sends data points to CloudWatch every minute. The AWS SNS service sends data every 5 minutes. Thus, it supports only the basic monitoring. The user cannot enable detailed monitoring with SNS.
Reference: http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/supported_services.html
Question