Which of the following is the most effective way to protect an application server running software that is no longer supported from network threats?

The correct answer is D. Screen subnet. One of the most effective ways to protect an application server is to use a screened subnet. A screened subnet is a network segment that is isolated from both the internet and the internal network by two firewalls. The application server is placed in the screened subnet, also kno

Submitted by carlos_mx· Mar 6, 2026Security architecture

Question

Options

AAir gap
BBarricade
CPort security
DScreen subnet

How the community answered

(40 responses)

A
5% (2)
B
18% (7)
C
10% (4)
D
68% (27)

Explanation

One of the most effective ways to protect an application server is to use a screened subnet. A screened subnet is a network segment that is isolated from both the internet and the internal network by two firewalls. The application server is placed in the screened subnet, also known as the demilitarized zone (DMZ), and only the necessary ports are opened for communication. This way, the application server is shielded from external attacks and internal breaches, and the impact of a compromise is minimized.

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