ANS-C01 Quick Quiz — 10 Questions

Question 1

A company wants to allow its employees to securely access internal applications hosted in a VPC without traversing the internet. The company also wants to be able to enforce security policies at the user level. Which AWS service should the company use?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

AWS Client VPN. AWS Client VPN is a managed, cloud-based VPN service that allows employees to securely access internal applications hosted in a VPC from any location without traversing the internet. It uses OpenVPN-based client software and integrates with AWS Identity and Access Management (IAM) and Active Directory to enforce security policies at the user level, such as group-based access controls and multi-factor authentication.

Answer

Bastion host in a public subnet

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AWS Direct Connect

Answer

AWS Site-to-Site VPN

Question 2

A company is setting up a Direct Connect connection between its on-premises data center and AWS. The company wants to use a single virtual interface (VIF) to access multiple VPCs in the same AWS Region. Which AWS service should be used to achieve this?

Accepted Answer

Direct Connect gateway. A Direct Connect gateway allows you to associate multiple Virtual Private Clouds (VPCs) in the same AWS Region with a single Direct Connect virtual interface (VIF). This is achieved by creating a Direct Connect gateway and attaching it to the VIF, then associating the desired VPCs with the gateway via virtual private gateways (VGWs) or transit gateways. This enables centralized, private connectivity from on-premises to multiple VPCs without needing separate VIFs per VPC.

Answer

VPC peering connection

Answer

AWS VPN CloudHub

Answer

Transit VPC

Question 3

Which TWO of the following are best practices for securing a VPC with AWS Network Firewall? (Choose two.)

Accepted Answer

Deploy firewall endpoints in at least two Availability Zones for high availability.. Option A is correct because AWS Network Firewall firewall endpoints are Availability Zone–scoped, so deploying endpoints in at least two AZs ensures high availability and prevents a single-AZ failure from taking down inspection. Option C is correct because stateful rule groups allow deep packet inspection and application-layer (Layer 7) filtering using Suricata-compatible rules, which is essential for detecting and blocking sophisticated threats. Option B is incorrect because stateless rules alone cannot perform application-layer inspection and are not a best practice for comprehensive security. Option D is incorrect because Network Firewall can inspect both inbound and outbound traffic, not just outbound. Option E is incorrect because the firewall should be deployed in a dedicated subnet (typically a firewall subnet) rather than the same subnet as workloads, to maintain proper traffic segmentation and routing.

Answer

Use only stateless rules to minimize processing overhead.

Answer

Use Network Firewall only for outbound traffic filtering.

Answer

Deploy the firewall in the same subnet as the workload for low latency.

Question 4

Which TWO of the following are valid methods to connect a VPC to an on-premises network? (Choose TWO.)

Accepted Answer

AWS Site-to-Site VPN. AWS Site-to-Site VPN creates an encrypted tunnel over the public internet between a VPC and an on-premises network using IPsec. It is a fully managed, quick-to-deploy method that supports both static routes and BGP dynamic routing via the virtual private gateway.

Answer

VPC endpoints

Answer

AWS Transit Gateway

Answer

VPC peering

Question 5

Which THREE AWS services can be used to improve the availability of a web application across multiple AWS Regions? (Choose 3.)

Accepted Answer

AWS Global Accelerator. AWS Global Accelerator improves availability across multiple AWS Regions by using the AWS global network to route user traffic to the optimal regional endpoint based on health, latency, and geography. It provides static anycast IP addresses and automatically reroutes traffic to healthy endpoints during a regional failure, thereby enhancing fault tolerance and performance for global web applications.

Answer

VPC peering

Answer

AWS Direct Connect

Question 6

A company uses AWS Direct Connect with a private VIF to connect to a VPC. The network team wants to monitor the bandwidth utilization of the Direct Connect connection in real time. Which AWS service should be used?

Accepted Answer

Amazon CloudWatch. Amazon CloudWatch is the AWS service that collects and displays Direct Connect metrics such as ConnectionBpsEgress, ConnectionBpsIngress, and VirtualInterfaceBpsEgress/Ingress, allowing real-time bandwidth utilization monitoring. These metrics are published automatically to CloudWatch under the AWS/DX namespace. CloudWatch dashboards and alarms can then be built on top of them.

Answer

AWS CloudTrail

Answer

VPC Flow Logs

Answer

AWS Config

Question 7

Which THREE of the following are considerations when designing a multi-account VPC architecture using AWS Transit Gateway? (Choose 3.)

Accepted Answer

Transit Gateway can be integrated with Direct Connect Gateway. AWS Transit Gateway acts as a central hub for interconnecting VPCs and on-premises networks. It can be integrated with Direct Connect Gateway, allowing a single Direct Connect connection to reach multiple VPCs attached to the Transit Gateway, simplifying hybrid network design and reducing operational overhead.

Answer

Each VPC must have a unique route table

Answer

VPCs with overlapping CIDR blocks can be attached

Question 8

A company has a VPC with public and private subnets. An application running in a private subnet needs to access an S3 bucket to read and write data. The security team wants to ensure that traffic to S3 does not traverse the internet. Which solution should the team implement?

Accepted Answer

Create a gateway VPC endpoint for S3 and add a route to the endpoint in the private subnet route table.. A gateway VPC endpoint for S3 allows instances in a private subnet to access S3 privately using AWS's internal network, without traversing the internet. By adding a route to the endpoint's prefix list in the private subnet route table, traffic destined for S3 is directed through the endpoint, which uses AWS PrivateLink to provide highly available, redundant connectivity.

Answer

Establish a VPN connection to AWS and route S3 traffic through the VPN.

Answer

Configure a NAT gateway in the public subnet and update the private subnet route table with a default route pointing to the NAT gateway.

Answer

Attach an internet gateway to the VPC and add a route to the S3 prefix list in the private subnet route table.

Question 9

A company is deploying a critical application across multiple AWS accounts. The network team wants to simplify IP address management and ensure that VPCs in different accounts can communicate securely. The company has a centralized network account with a transit gateway. Which architecture should the company use?

Accepted Answer

Use AWS Resource Access Manager to share the transit gateway in the network account with other accounts and attach their VPCs.. AWS Resource Access Manager (RAM) allows you to share a transit gateway from a centralized network account with other AWS accounts, enabling VPCs in those accounts to attach to the shared transit gateway. This simplifies IP address management by providing a single hub for inter-VPC routing and avoids the complexity of managing multiple VPC peering connections. The transit gateway supports transitive routing, so VPCs in different accounts can communicate securely through the centralized gateway without needing direct peering.

Answer

Create VPC peering connections between each VPC in different accounts.

Answer

Configure VPC endpoints in each account to communicate through the network account.

Answer

Set up AWS Direct Connect between accounts and route through the network account.

Question 10

Refer to the exhibit. A flow log record shows ACCEPT for traffic from 10.0.1.5 to 10.0.2.10 on port 443. Which AWS service is most likely the destination?

Accepted Answer

Application Load Balancer. An Application Load Balancer (ALB) terminates HTTPS (port 443) connections and forwards traffic to targets. Flow logs showing ACCEPT for traffic to port 443 on an ALB's internal IP (10.0.2.10) are expected because the ALB listens on that port for incoming client connections. The ALB operates at Layer 7 and is the only listed service that natively accepts HTTPS traffic on port 443 within a VPC.

Answer

Amazon RDS instance

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NAT Gateway

Answer

Amazon S3