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SCP Exam SC0-451 Topic 3 Question 99 Discussion

Actual exam question for SCP's SC0-451 exam
Question #: 99
Topic #: 3
[All SC0-451 Questions]

Your network is a mixed environment of Windows, Linux, and UNIX, computers. The routers are primarily Cisco and the network uses a T-1 to connect to the Internet. You are experimenting with setting up a mail server in a production environment for internal use only. You do not want this mail server to receive any requests from anywhere but the internal network. Therefore you have decided to block incoming SMTP traffic at the Firewall. Which port will you block at the Firewall?

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Suggested Answer: B

by Darrin at Sep 17, 2024, 11:23 AM

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Karrie
1 days ago
I'm going with B) 25. Can't go wrong with the classic SMTP port. Unless you want to start a fire in the server room, then you should choose a different port.
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Charlene
12 days ago
I was just about to say B) 25. It's the most obvious choice here. Blocking that port is the way to go to keep your mail server secure.
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Arthur
16 days ago
Definitely B) 25. Blocking that port will prevent any external SMTP requests from reaching your internal mail server. Easy peasy!
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Celestina
18 days ago
I'm not sure about this. Shouldn't we block port 110 instead? That's for POP3 traffic, right?
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Billy
19 days ago
The correct answer is B) 25. SMTP, the Simple Mail Transfer Protocol, uses port 25 for incoming mail traffic.
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Dianne
3 hours ago
C) 53
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Anglea
4 days ago
B) 25
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Whitney
10 days ago
A) 23
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Daniela
21 days ago
I agree with Madelyn. Port 25 is used for SMTP traffic, so blocking it will prevent external requests to the mail server.
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Madelyn
23 days ago
I think we should block port 25 at the Firewall.
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