A network administrator is reviewing a production web server and observes the following output from the netstat command: Which of the following actions should the network administrator take to…

The correct answer is A. Disable the unused ports. The netstat output shows that multiple ports are open, including Telnet (23), FTP (20), and TFTP (69), which are potential security risks. Disabling unused ports minimizes the attack surface, reducing security vulnerabilities.

Submitted by ngozi_ng· Mar 6, 2026Network Security

Question

A network administrator is reviewing a production web server and observes the following output from the netstat command:

Which of the following actions should the network administrator take to harden the security of the web server?

Exhibits

Options

ADisable the unused ports.
BEnforce access control lists.
CPerform content filtering.
DSet up a screened subnet.

How the community answered

(50 responses)

A
76% (38)
B
8% (4)
C
12% (6)
D
4% (2)

Explanation

The netstat output shows that multiple ports are open, including Telnet (23), FTP (20), and TFTP (69), which are potential security risks. Disabling unused ports minimizes the attack surface, reducing security vulnerabilities.

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