Amazon Web Services ANS-C01 Exam Questions Free Practice Test

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Questions # 11:

A company runs a workload in a single VPC on AWS. The company’s architecture contains several interface VPC endpoints for AWS services, including Amazon CloudWatch Logs and AWS Key Management Service (AWS KMS). The endpoints are configured to use a shared security group. The security group is not used for any other workloads or resources.

After a security review of the environment, the company determined that the shared security group is more permissive than necessary. The company wants to make the rules associated with the security group more restrictive. The changes to the security group rules must not prevent the resources in the VPC from using AWS services through interface VPC endpoints. The changes must prevent unnecessary access.

The security group currently uses the following rules:

• Inbound - Rule 1

Protocol: TCP

Port: 443

Source: 0.0.0.0/0

• Inbound - Rule 2

Protocol: TCP

Port: 443

Source: VPC CIDR

• Outbound - Rule 1

Protocol: All

Port: All

Destination: 0.0.0.0/0

Which rule or rules should the company remove to meet with these requirements?

Options:

Outbound - Rule 2

Inbound - Rule 1 and Outbound - Rule 1

Inbound - Rule 2 and Outbound - Rule 1

Outbound - Rule 1

Expert Solution

Questions # 12:

A network engineer is evaluating a network setup for a global retail company. The company has an AWS Direct Connect connection between its on-premises data center and the AWS Cloud. The company has AWS resources in the eu-west-2 Region. These resources consist of multiple VPCs that are attached to a transit gateway.

The company recently provisioned a few AWS resources in the eu-central-1. Region in a single VPC close to its users in this area. The network engineer must connect the resources in eu-central-1 with the on-premises data center and the resources in eu-west-2. The solution must minimize changes to the Direct Connect connection.

What should the network engineer do to meet these requirements?

Options:

Create a new virtual private gateway. Attach the new virtual private gateway to the VPC in eu-central-1. Use a transit VIF to connect the VPC and the Direct Connect router.

Create a new transit gateway in eu-central-1. Create a peering attachment request to the transit gateway in eu-west-2. Add a static route in the transit gateway route table in eu-central-1 to point to the transit gateway peering attachment. Accept the peering request. Add a static route in the transit gateway route table in eu-west-2 to point to the new transit gateway peering attachment.

Create a new transit gateway in eu-central-1. Use an AWS Site-to-Site VPN connection to peer both transit gateways. Add a static route in the transit gateway route table in eu-central-1 to point to the transit gateway VPN attachment. Add a static route in the transit gateway route table in eu-west-2 to point to the new transit gateway peering attachment.

Create a new virtual private gateway. Attach the new virtual private gateway to the VPC in eu-central-1. Use a public VIF to connect the VPC and the Direct Connect router.

Expert Solution

Questions # 13:

A company has developed a web service for language translation. The web service's application runs on a fleet of Amazon EC2 instances that are in an Auto Scaling group. The instances run behind an Application Load Balancer (ALB) and are deployed in a private subnet. The web service can process requests that contain hundreds of megabytes of data.

The company needs to give some customers the ability to access the web service. Each customer has its own AWS account. The company must make the web service accessible to approved customers without making the web service accessible to all customers.

Which combination of steps will meet these requirements with the LEAST operational overhead? (Choose two.)

Options:

Create VPC peering connections with the approved customers only.

Create an AWS PrivateLink endpoint service. Configure the endpoint service to require acceptance that will be granted to approved customers only.

Configure an authentication action for the endpoint service's load balancer to allow customers to log in by using their AWS credentials. Provide only approved customers with the URL.

Configure a Network Load Balancer (NLB) and a listener with the ALB as a target. Associate the NLB with the endpoint service.

Associate the ALB with the endpoint service.

Expert Solution

Questions # 14:

A company has hundreds of VPCs on AWS. All the VPCs access the public endpoints of Amazon S3 and AWS Systems Manager through NAT gateways. All the traffic from the VPCs to Amazon S3 and Systems Manager travels through the NAT gateways. The company's network engineer 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?

Options:

Create a central egress VPC that has private NAT gateways. Connect all the VPCs to the central egress VPC by using AWS Transit Gateway. Use the private NAT gateways to connect to Amazon S3 and Systems Manager by using private IP addresses.

Create a central shared services VPC. In the central shared services VPC, create interface VPC endpoints for Amazon S3 and Systems Manager to access. Ensure that private DNS is turned off. Connect all the VPCs to the central shared services VPC by using AWS Transit Gateway. 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 end

Create a central shared services VPIn the central shared services VPC, create interface VPC endpoints for Amazon S3 and Systems Manager to access. Ensure that private DNS is turned off. Connect all the VPCs to the central shared services VPC by using AWS Transit Gateway. 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. Cre

Create a central shared services VPC. In the central shared services VPC, create interface VPC endpoints for Amazon S3 and Systems Manager to access. Connect all the VPCs to the central shared services VPC by using AWS Transit Gateway. Ensure that private DNS is turned on for the interface VPC endpoints and that the transit gateway is created with DNS support turned on.

Expert Solution

Questions # 15:

A government contractor is designing a multi-account environment with multiple VPCs for a customer. A network security policy requires all traffic between any two VPCs to be transparently inspected by a third-party appliance.

The customer wants a solution that features AWS Transit Gateway. The setup must be highly available across multiple Availability Zones, and the solution needs to support automated failover. Furthermore, asymmetric routing is not supported by the inspection appliances.

Which combination of steps is part of a solution that meets these requirements? (Choose two.)

Options:

Deploy two clusters that consist of multiple appliances across multiple Availability Zones in a designated inspection VPC. Connect the inspection VPC to the transit gateway by using a VPC attachment. Create a target group, and register the appliances with the target group. Create a Network Load Balancer (NLB), and set it up to forward to the newly created target group. Configure a default route in the inspection VPCs transit gateway subnet

Deploy two clusters that consist of multiple appliances across multiple Availability Zones in a designated inspection VPC. Connect the inspection VPC to the transit gateway by using a VPC attachment. Create a target group, and register the appliances with the target group. Create a Gateway Load Balancer, and set it up to forward to the newly created target group. Configure a default route in the inspection VPC’s transit gateway subnet towar

Configure two route tables on the transit gateway. Associate one route table with all the attachments of the application VPCs. Associate the other route table with the inspection VPC’s attachment. Propagate all VPC attachments into the inspection route table. Define a static default route in the application route table. Enable appliance mode on the attachment that connects the inspection VPC.

Configure two route tables on the transit gateway. Associate one route table with all the attachments of the application VPCs. Associate the other route table with the inspection VPCs attachment. Propagate all VPC attachments into the application route table. Define a static default route in the inspection route table. Enable appliance mode on the attachment that connects the inspection VPC.

Configure one route table on the transit gateway. Associate the route table with all the VPCs. Propagate all VPC attachments into the route table. Define a static default route in the route table.

Expert Solution

Questions # 16:

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?

Options:

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.

Expert Solution

Questions # 17:

AnyCompany deploys and manages networking resources in its AWS network account, named Account-A. AnyCompany acquires Example Corp, which has an application that runs behind an Application Load Balancer (ALB) in Example Corp's AWS account, named Account-B.

Example Corp needs to use AWS Global Accelerator to create an accelerator to publish the application to users. AnyCompany's networking team will manage the accelerator.

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

Options:

Create an accelerator in Account-В. Use a cross-account role from Account-A to grant the networking team access to manage the accelerator.

Deploy a Network Load Balancer (NLB) in Account-A to route traffic to the ALB in Account-В. Create an accelerator, and set the NLB as the endpoint in Account-A.

Create a cross-account Global Accelerator attachment in Account-В for the Account-A principal. Create an accelerator in Account-A by using the shared attachment.

Create an accelerator in Account-A. Use AWS Resource Access Management (AWS RAM) to share the accelerator with Account-В. Associate the ALB in Account-В with the accelerator in Account-A.

Expert Solution

Questions # 18:

A company deploys an internal website behind an Application Load Balancer (ALB) in a VPC. The VPC has a CIDR block of 172.31.0.0/16. The company creates a private hosted zone for the domain example.com for the website in Amazon Route 53. The company establishes an AWS Site-to-Site VPN connection between its office network and the VPC.

A network engineer needs to set up a DNS solution so that employees can visit the internal webpage by accessing a private domain URL (https://example.com) from the office network.

Which combination of steps will meet this requirement? (Choose two.)

Options:

Create an alias record that points to the ALB in the Route 53 private hosted zone.

Create a CNAME record that points to the ALB internal domain in the Route 53 private hosted zone.

Create a Route 53 Resolver inbound endpoint. On the office DNS server, configure a conditional forwarder to forward the DNS queries to the Route 53 Resolver inbound endpoint.

Create a Route 53 Resolver outbound endpoint. On the office DNS server, configure a conditional forwarder to forward the DNS queries to the Route 53 Resolver outbound endpoint.

On the office DNS server, configure a conditional forwarder for the private domain to the VPC DNS at 172.31.0.2.

Expert Solution

Questions # 19:

An organization is replacing a tape backup system with a storage gateway. there is currently no connectivity to AWS. Initial testing is needed.

What connection option should the organization use to get up and running at minimal cost?

Options:

Use an internet connection.

Set up an AWS VPN connection.

Provision an AWS Direct Connection private virtual interface.

Provision a Direct Connect public virtual interface.

Expert Solution

Questions # 20:

A company is using an AWS Site-to-Site VPN connection from the company's on-premises data center to a virtual private gateway in the AWS Cloud Because of congestion, the company is experiencing availability and performance issues as traffic travels across the internet before the traffic reaches AWS. A network engineer must reduce these issues for the connection as quickly as possible with minimum administration effort.

Which solution will meet these requirements?

Options:

Edit the existing Site-to-Site VPN connection by enabling acceleration. Stop and start the VPN service on the customer gateway for the new setting to take effect.

Configure a transit gateway in the same AWS Region as the existing virtual private gateway. Create a new accelerated Site-to-Site VPN connection. Connect the new connection to the transit gateway by using a VPN attachment. Update the customer gateway device to use the new Site to Site VPN connection. Delete the existing Site-to-Site VPN connection

Create a new accelerated Site-to-Site VPN connection. Connect the new Site-to-Site VPN connection to the existing virtual private gateway. Update the customer gateway device to use the new Site-to-Site VPN connection. Delete the existing Site-to-Site VPN connection.

Create a new AWS Direct Connect connection with a private VIF between the on-premises data center and the AWS Cloud. Update the customer gateway device to use the new Direct Connect connection. Delete the existing Site-to-Site VPN connection.

Expert Solution

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