Answer: AWS Network Firewall

## Explanation Among the given options, **AWS Network Firewall** is the most appropriate choice for this requirement because: - **AWS Network Firewall** is a stateful firewall service that can filter traffic at the network level, including blocking access to specific websites based on domain names or IP addresses - It can be configured with custom rules to deny outbound traffic to known malicious websites - It operates at the VPC level, which can protect Amazon WorkSpaces instances running within the VPC ### Why the other options are not suitable: - **AWS Shield Advanced**: This is a DDoS protection service that protects against distributed denial-of-service attacks, not for blocking specific websites - **Amazon Route 53**: This is a DNS service for domain name resolution, not for website blocking - **Amazon GuardDuty**: This is a threat detection service that monitors for suspicious activity and potential threats, but it doesn't actively block access to websites ### Important Note: While AWS Network Firewall can help with network-level blocking, it's worth noting that for comprehensive endpoint web filtering on virtual desktops like Amazon WorkSpaces, companies often use: - Third-party endpoint security solutions - Cloud-based web filtering services (like Zscaler, Cisco Umbrella) - DNS filtering services - Browser security extensions However, among the AWS-native options provided, AWS Network Firewall is the most relevant for this network-level filtering requirement.

Author: Ritesh Yadav