CompTIA
JK0-018 · Question #229
A firewall technician has been instructed to disable all non-secure ports on a corporate firewall. The technician has blocked traffic on port 21, 69, 80, and 137-139. The technician has allowed…
The correct answer is B. Blocked: FTP, TFTP, HTTP, NetBIOS; Allowed: SFTP, SSH, SCP, HTTPS. See the full explanation below for the reasoning.
Question
A firewall technician has been instructed to disable all non-secure ports on a corporate firewall. The technician has blocked traffic on port 21, 69, 80, and 137-139. The technician has allowed traffic on ports 22 and 443. Which of the following correctly lists the protocols blocked and allowed?
Options
- ABlocked: TFTP, HTTP, NetBIOS; Allowed: HTTPS, FTP
- BBlocked: FTP, TFTP, HTTP, NetBIOS; Allowed: SFTP, SSH, SCP, HTTPS
- CBlocked: SFTP, TFTP, HTTP, NetBIOS; Allowed: SSH, SCP, HTTPS
- DBlocked: FTP, HTTP, HTTPS; Allowed: SFTP, SSH, SCP, NetBIOS
How the community answered
(28 responses)- A4% (1)
- B71% (20)
- C7% (2)
- D18% (5)
Community Discussion
No community discussion yet for this question.