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Exam 400-251 topic 2 question 35 discussion

Actual exam question from Cisco's 400-251
Question #: 35
Topic #: 2
[All 400-251 Questions]

User A at Company A is trying to transfer files to Company B, using FTP. User A can connect to the FTP server at Company B correctly, but User A cannot get a directory listing or upload files.
The session hangs.
What are two possible causes for this problem? (Choose two.)

  • A. Active FTP is being used, and the firewall at Company A is not allowing the returning data connection to be initiated from the FTP server at Company B.
  • B. Passive FTP is being used, and the firewall at Company A is not allowing the returning data connection to be initiated from the FTP server at Company B.
  • C. At Company A, active FTP is being used with a non-application aware firewall applying NAT to the source address of User A only.
  • D. The FTP server administrator at Company B has disallowed User A from accessing files on that server.
  • E. Passive FTP is being used, and the firewall at Company B is not allowing connections through to port 20 on the FTP server.
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Suggested Answer: AC 🗳️
by [deleted] at April 4, 2025, 12:23 a.m.

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