A Security Officer on a military base needs to encrypt several smart phones that will be going into the
field. Which of the following ports should they block on the firewall?
A.
53
B.
110
C.
143
D.
443
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WTF is this?
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As dumb as this question is, I am submitting a possible consideration. We have a situation where we consider the phones to be encrypted to hide information. Now, if someone uses email to disseminate our information, we can track it and punish them. However, if they use SSL/TLS to hide their actions from us, then we will not know if they are sending out unapproved information.
It is a stretch but it is the only one that I can even make a case for. This was an interesting link which ties VPN to the normal HTTPS. I would make this D because I really don’t have any other choices.
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DNS: Domain Name System, allows hosts to resolve hostnames to an Internet Protocol(IP) address. A is the correct answer.
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