N10-005 · Question #647
Kurt, a network technician, has configured a new firewall on the network. Users are reporting errors when attempting to access several websites. Kurt attempts to access several popular websites with…
The correct answer is D. Allow TCP port 443. Bank websites use HTTPS (HyperText Transfer Protocol Secure) for encrypted communication to protect sensitive financial data. HTTPS operates on TCP port 443. Since Kurt can access regular (HTTP) websites on TCP port 80 but not the bank's HTTPS site, the firewall is blocking TCP…
Question
Kurt, a network technician, has configured a new firewall on the network. Users are reporting errors when attempting to access several websites. Kurt attempts to access several popular websites with no errors, however, he does receive an error when attempting to access a bank website. Which of the following rules would BEST allow access to the bank website?
Options
- AAllow UDP port 53
- BAllow TCP port 80
- CAllow UDP port 340
- DAllow TCP port 443
How the community answered
(18 responses)- A6% (1)
- C6% (1)
- D89% (16)
Explanation
Bank websites use HTTPS (HyperText Transfer Protocol Secure) for encrypted communication to protect sensitive financial data. HTTPS operates on TCP port 443. Since Kurt can access regular (HTTP) websites on TCP port 80 but not the bank's HTTPS site, the firewall is blocking TCP port 443. Allowing TCP port 443 would enable access to the bank website. TCP port 80 is for unencrypted HTTP, UDP port 53 is for DNS name resolution, and UDP port 340 is not a standard well-known port.
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