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N10-005 · Question #365
N10-005 Question #365: Real Exam Question with Answer & Explanation
The correct answer is C: 443. HTTPS (HTTP Secure) uses TCP port 443, which must be permitted through the firewall for users to access encrypted websites.
Question
Users trying to access a website using HTTPS are being blocked by the firewall. Which of the following ports needs to be allowed?
Options
- A80
- B143
- C443
- D3389
Explanation
HTTPS (HTTP Secure) uses TCP port 443, which must be permitted through the firewall for users to access encrypted websites.
Common mistakes.
- A. Port 80 is the default port for unencrypted HTTP traffic, not HTTPS; allowing only port 80 would permit insecure web traffic but still block HTTPS connections.
- B. Port 143 is the default port for IMAP (Internet Message Access Protocol), which is used to retrieve email from a mail server, not for web browsing.
- D. Port 3389 is the default port for RDP (Remote Desktop Protocol), used for remote desktop connections to Windows systems, not for HTTPS web traffic.
Concept tested. HTTPS protocol default TCP port 443
Reference. https://learn.microsoft.com/en-us/azure/firewall/protect-azure-virtual-networks
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