Secure Network Administrationintermediate
Which policy in the lesson allows a public-facing web server in a demilitarized zone (DMZ) to receive secure web traffic from the Internet?
Answer
Untrust to DMZ, Hypertext Transfer Protocol Secure (HTTPS), allow
Explanation
### Why this is right
The rule allows traffic from the less-trusted external zone to the DMZ and limits the service to secure web traffic. This matches the lesson's example of exposing a public web service without placing the server in the internal network.
### The concept
A DMZ separates public-facing systems from internal systems. A policy can allow a specific service from the untrusted network to the DMZ while leaving other traffic denied. Reaching the DMZ does not imply permission to reach internal networks.
### The other options
- **B. Untrust to Internal, Remote Desktop Protocol (RDP), allow**: it exposes an internal network service rather than the intended DMZ web service.
- **C. Internal to Untrust, all services, deny**: it does not permit external users to reach the web server.
- **D. DMZ to Internal, all services, allow**: it grants broad access from the DMZ to internal systems, undermining separation.
### Terms
- **DMZ**: Demilitarized Zone. A separated network for systems communicating with less-trusted networks.
- **HTTPS**: Hypertext Transfer Protocol Secure. A protocol for secure web communication.
- **RDP**: Remote Desktop Protocol. A protocol for remote desktop connections.
### Remember
Expose only the intended service to the DMZ, not broad access to the internal network.
Related Questions
- Which statement best describes the protection a Virtual Private Network (VPN) provides?(basic)
- A VPN that encrypts traffic also guarantees that the applications on both endpoints are safe.(basic)
- Explain why a split-tunnel design can reduce central inspection, and identify the traffic affected.(advanced)
- Select ALL protection goals a VPN can support directly through the mechanisms described in the course.(intermediate)
- Compare remote-access and site-to-site VPN designs, including their endpoints and a suitable example of each.(basic)
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