Exam 200-201 topic 1 question 161 discussion

Actual exam question from Cisco's 200-201

Question #: 161
Topic #: 1

An engineer is addressing a connectivity issue between two servers where the remote server is unable to establish a successful session. Initial checks show that the remote server is not receiving a SYN-ACK while establishing a session by sending the first SYN. What is causing this issue?

A. incorrect TCP handshake
B. incorrect UDP handshake
C. incorrect OSI configuration
D. incorrect snaplen configuration

Show Suggested Answer

Suggested Answer: A 🗳️
Reference:
https://www.sciencedirect.com/topics/computer-science/three-way-handshake#:~:text=The%20TCP%20handshake,as%20shown%20in%20Figure%
203.8

by Eng_ahmedyoussef at Oct. 7, 2022, 12:45 p.m.

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AhmedAbdalla

9 months, 4 weeks ago

incorrect TCP handshake In a typical TCP handshake, the process involves three steps: SYN: The client sends a SYN (synchronize) packet to the server to initiate the connection. SYN-ACK: The server responds with a SYN-ACK (synchronize-acknowledgment) packet to acknowledge the client's request and indicate readiness to establish the connection. ACK: Finally, the client sends an ACK (acknowledgment) packet back to the server to confirm the connection. If the remote server is not receiving the expected SYN-ACK response after sending the first SYN, it indicates a problem in the TCP handshake, which could be due to network issues, firewall rules, or other misconfigurations.

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Eng_ahmedyoussef

1 year, 9 months ago

Selected Answer: A

A. incorrect TCP handshake

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