ANS-C01 Amazon Web Services Amazon AWS Certified Advanced Networking

Amazon AWS Certified Advanced Networking - Specialty

Last Update 19 hours ago Total Questions : 290

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Question # 21

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.)

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.

Question # 22

A company needs to manage Amazon EC2 instances through command line interfaces for Linux hosts and Windows hosts. The EC2 instances are deployed in an environment in which there is

no route to the internet. The company must implement role-based access control for management of the instances. The company has a standalone on-premises environment.

Which approach will meet these requirements with the LEAST maintenance overhead?

Set up an AWS Direct Connect connection between the on-premises environment and the VPC where the instances are deployed. Configure routing, security groups, and ACLs.

Connect to the instances by using the Direct Connect connection.

Deploy and configure AWS Systems Manager Agent (SSM Agent) on each instance. Deploy VPC endpoints for Systems Manager Session Manager. Connect to the instances by

using Session Manager.

Establish an AWS Site-to-Site VPN connection between the on-premises environment and the VPC where the instances are deployed. Configure routing, security groups, and

ACLs. Connect to the instances by using the Site-to-Site VPN connection.

Deploy an appliance to the VPC where the instances are deployed. Assign a public IP address to the appliance. Configure security groups and ACLs. Connect to the instances by

using the appliance as an intermediary.

Question # 23

A security team is performing an audit of a company's AWS deployment. The security team is concerned that two applications might be accessing resources that should be blocked by network ACLs and security groups. The applications are deployed across two Amazon Elastic Kubernetes Service (Amazon EKS) clusters that use the Amazon VPC Container Network Interface (CNI) plugin for Kubernetes. The clusters are in separate subnets within the same VPC and have a Cluster Autoscaler configured.

The security team needs to determine which POD IP addresses are communicating with which services throughout the VPC. The security team wants to limit the number of flow logs and wants to examine the traffic from only the two applications.

Which solution will meet these requirements with the LEAST operational overhead?

Create VPC flow logs in the default format. Create a filter to gather flow logs only from the EKS nodes. Include the srcaddr field and the dstaddr field in the flow logs.

Create VPC flow logs in a custom format. Set the EKS nodes as the resource Include the pkt-srcaddr field and the pkt-dstaddr field in the flow logs.

Create VPC flow logs in a custom format. Set the application subnets as resources. Include the pkt-srcaddr field and the pkt-dstaddr field in the flow logs.

Create VPC flow logs in a custom format. Create a filter to gather flow logs only from the EKS nodes. Include the pkt-srcaddr field and the pkt-dstaddr field in the flow logs.

Question # 24

A software company offers a software-as-a-service (SaaS) accounting application that is hosted in the AWS Cloud The application requires connectivity to the company's on-premises network. The company has two redundant 10 GB AWS Direct Connect connections between AWS and its on-premises network to accommodate the growing demand for the application.

The company already has encryption between its on-premises network and the colocation. The company needs to encrypt traffic between AWS and the edge routers in the colocation within the next few months. The company must maintain its current bandwidth.

What should a network engineer do to meet these requirements with the LEAST operational overhead?

Deploy a new public VIF with encryption on the existing Direct Connect connections. Reroute traffic through the new public VIF.

Create a virtual private gateway Deploy new AWS Site-to-Site VPN connections from on premises to the virtual private gateway Reroute traffic from the Direct Connect private VIF to the new VPNs.

Deploy a new pair of 10 GB Direct Connect connections with MACsec. Configure MACsec on the edge routers. Reroute traffic to the new Direct Connect connections. Decommission the original Direct Connect connections

Deploy a new pair of 10 GB Direct Connect connections with MACsec. Deploy a new public VIF on the new Direct Connect connections. Deploy two AWS Site-to-Site VPN connections on top of the new public VIF. Reroute traffic from the existing private VIF to the new Site-to-Site connections. Decommission the original Direct Connect connections.

Question # 25

A company has hundreds of Amazon EC2 instances that are running in two production VPCs across all Availability Zones in the us-east-1 Region. The production VPCs are named

VPC A and VPC B.

A new security regulation requires all traffic between production VPCs to be inspected before the traffic is routed to its final destination. The company deploys a new shared VPC that

contains a stateful firewall appliance and a transit gateway with a VPC attachment across all VPCs to route traffic between VPC A and VPC B through the firewall appliance for

inspection. During testing, the company notices that the transit gateway is dropping the traffic whenever the traffic is between two Availability Zones.

What should a network engineer do to fix this issue with the LEAST management overhead?

In the shared VPC, replace the VPC attachment with a VPN attachment. Create a VPN tunnel between the transit gateway and the firewall appliance. Configure BGP.

Enable transit gateway appliance mode on the VPC attachment in VPC A and VPC B.

Enable transit gateway appliance mode on the VPC attachment in the shared VPC.

In the shared VPC, configure one VPC peering connection to VPC A and another VPC peering connection to VPC B.

Question # 26

A company has a VPC in the AWS Cloud. The company recently acquired a competitor that also has a VPC in the AWS Cloud. A network engineer discovers an IP address overlap between the two VPCs. Both VPCs require access to an AWS Marketplace partner service.

Which solution will ensure interoperability among the VPC hosted services and the AWS Marketplace partner service?

Configure VPC peering with static routing between the VPCs. Configure an AWS Site-to-Site VPN connection with static routing to the partner service.

Configure a NAT gateway in the VPCs. Configure default routes in each VPC to point to the local NAT gateway. Attach each NAT gateway to a transit gateway. Configure an AWS Site-to-Site VPN connection with static routing to the partner service.

Configure AWS PrivateLink to facilitate connectivity between the VPCs and the partner service. Use the DNS name that is created with the associated interface endpoints to route traffic between the VPCs and the partner service.

Configure a NAT instance in the VPCs. Configure default routes in each VPC to point to the local NAT instance. Configure an interface endpoint in each VPC to connect to the partner service. Use the DNS name that is created with the associated interface endpoints to route traffic between the VPCs and the partner service.

Question # 27

A company has AWS accounts in an organization in AWS Organizations. The company has implemented Amazon VPC IP Address Manager (IPAM)in its networking AWS account. The company is using AWS Resource Access Manager (AWS RAM) to share IPAM pools with other AWS accounts. The company has created a top-level pool with a CIDR block of 10.0.0.0/8. For each AWS account, the company has created an IPAM pool within the top-level pool.

A network engineer needs to implement a solution to ensure that users in each AWS account cannot create new VPCs. The solution also must prevent users from associating a CIDR block with existing VPCs unless the CIDR block is from the IPAM pool for that account.

Which solution will meet these requirements?

Create a new AWS Config rule to find all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke an AWS Lambda function to delete these VPCs.

Create a new SCP in Organizations. Add a condition that denies the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions if the lpv4lpamPoolld context key value is not the ID of an IPAM pool.

Create an AWS Lambda function to check for and delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke the Lambda function at regular intervals.

Create an Amazon EventBridge rule to check for AWS CloudTrail events for the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions. Use the rule to invoke an AWS Lambda function to delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool.

Question # 28

A company is migrating critical applications to AWS. The company has multiple accounts and VPCs that are connected by a transit gateway.

A network engineer must design a solution that performs deep packet inspection for any traffic that leaves a VPC network boundary. All inspected traffic and the actions that are taken on the traffic must be logged in a central log account.

Which solution will meet these requirements with the LEAST administrative overhead?

Create a central network VPC that includes an attachment to the transit gateway. Update the VPC and transit gateway route tables to support the new attachment. Deploy an AWS Gateway Load Balancer that is backed by third-party, next-generation firewall appliances to the central network VPC. Create a policy that contains the rules for deep packet inspection. Attach the policy to the firewall appliances. Create an Amazon S3 bucket in the centr

Create a central network VPC that includes an attachment to the transit gateway. Update the VPC and transit gateway route tables to support the new attachment. Deploy an AWS Application Load Balancer that is backed by third-party, next-generation firewall appliances to the central network VPC. Create a policy that contains the rules for deep packet inspection. Attach the policy to the firewall appliances. Create a syslog server in the centr

Deploy network ACLs and security groups to each VPC. Attach the security groups to active network interfaces. Associate the network ACLs with VPC subnets. Create rules for the network ACLs and security groups to allow only the required traffic flows between subnets and network interfaces. Create an Amazon S3 bucket in the central log account. Configure a VPC flow log that captures and saves all traffic flows to the S3 bucket.

Create a central log VPC and an attachment to the transit gateway. Update the VPC and transit gateway route tables to support the new attachment. Deploy an AWS Network Load Balancer (NLB) that is backed by third-party, next-generation intrusion detection system (IDS) security appliances to the central VPC. Activate rules on the security appliances to monitor for intrusion signatures. For each network interface, create a VPC Traffic Mirrorin

Question # 29

Company A recently acquired Company B. Company A has a hybrid AWS and on-premises environment that uses a hosted AWS Direct Connect connection, a Direct Connect gateway, and a transit gateway. Company A has a transit VIF to access the resources in its production environment in the us-east-1 Region.

Company B has applications that run across multiple VPCs in the us-west-2 Region in a single AWS account. A transit gateway connects all Company B's application VPCs. The CIDR blocks for both companies do not overlap.

Company A needs to use the existing Direct Connect connection to access Company B’s applications from the on-premises environment.

Which solution will meet these requirements?

Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a transit VIF on the existing hosted connection for Company B.

Create an association proposal from the Company B account to associate the Company B transit gateway with the Company A Direct Connect gateway. Accept the transit gateway association proposal by logging into the Company A account.

Create multiple virtual private gateways. Attach the virtual private gateways to each of Company B's application VPCs. Create a hosted private VIF for each virtual private gateway.

Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a hosted private VIF for Company B.

Question # 30

A development team is building a new web application in the AWS Cloud. The main company domain, example.com. is currently hosted in an Amazon Route 53 public hosted zone in one of the company's production AWS accounts.

The developers want to test the web application in the company's staging AWS account by using publicly resolvable subdomains under the example.com domain with the ability to create and delete DNS records as needed. Developers have full access to Route 53 hosted zones within the staging account, but they are prohibited from accessing resources in any of the production AWS accounts.

Which combination of steps should a network engineer take to allow the developers to create records under the example.com domain? (Select TWO.)

Create a public hosted zone for example.com in the staging account.

Create a staging.example.com NS record in the example.com domain. Populate the value with the name servers from the staging.example.com domain. Set the routing policy type to simple routing.

Create a private hosted zone for stagmg.example.com in the staging account.

Create an example.com NS record in the staging.example.com domain. Populate the value with the name servers from the example.com domain. Set the routing policy type to simple routing

Create a public hosted zone for staging.example.com in the staging account.