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Exam 220-1101 topic 1 question 137 discussion

Actual exam question from CompTIA's 220-1101
Question #: 137
Topic #: 1
[All 220-1101 Questions]

A systems administrator has been tasked with allowing SMTP traffic through the system's host-based firewall. Which of the following ports should the administrator enable?

  • A. 23
  • B. 25
  • C. 80
  • D. 161
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Suggested Answer: B 🗳️
by fiela1 at Nov. 28, 2022, 10:23 a.m.

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fiela1
Highly Voted 2 years ago
A. 23 = Telnet B. 25 = Simple Mail Transfer Protocol (SMTP) C. 80 = Hypertext Transfer Protocol (HTTP) D. 161 = Simple Network Management Protocol (SNMP)
upvoted 18 times
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e643de3
Most Recent 7 months, 2 weeks ago
Selected Answer: B
Long story short, Port 25 is Simple Mail Transfer Protocol.
upvoted 2 times
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Raffaelloo
1 year, 1 month ago
Selected Answer: B
Originally, the Simple Mail Transfer Protocol (SMTP) used port 25. Today, SMTP should instead use port 587 — this is the port for encrypted email transmissions using SMTP Secure (SMTPS).
upvoted 1 times
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Dadadagreat
1 year, 7 months ago
B is the correct answer
upvoted 1 times
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C (25%)
B (20%)
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