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Exam 4A0-100 topic 2 question 29 discussion

Actual exam question from Alcatel-Lucent's 4A0-100
Question #: 29
Topic #: 2
[All 4A0-100 Questions]

Host A receives a TCP SYN/ACK segment. What does this signify?

  • A. Host A has received a request to establish a TCP session.
  • B. Host A has received a request to close a TCP session
  • C. A TCP session is now established to host A.
  • D. The TCP session has been terminated due to a timeout.
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Suggested Answer: C 🗳️

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tiagodfm
3 years, 3 months ago
Since Host A is receiving a SYN/ACK, it means it has initiated the request to establish a session. When Host B(?) send this SYN/ACK, it confirms the session in the direction Host A->Host B, and is establishing its own connection towards A. I think that the right answer is A ( Host A received a request to establish a TCP session - SYN). Option C would be right if it said "A TCP session is now established to Host B", because Host A still didn't ACKed the requested session.... please correct me if I'm wrong, thank you
upvoted 1 times
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tiagodfm
3 years, 3 months ago
Since Host A is receiving a SYN/ACK, it means it has initiated the request to establish a session. When Host B(?) send this SYN/ACK, it confirms the session in the direction Host A->Host B, and is establishing its own connection towards A. I think that the right answer is A ( Host A requested to establish a session and is now receiving the ACK). Option C would be right if it said "A TCP session is now established to Host B", because Host A still didn't ACKed the requested session.... please correct me if I'm wrong, thank you!
upvoted 1 times
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