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NSE 7 - Secure Networking 7.6 Architect Exam Materials - Question #9 Discussion

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If you configure set tcp-mss-sender and set tcp-mss-receiver in a firewall policy, how does it affect the size and handling of TCP packets in the network? (Choose one answer)

  • A. The commands affect the payload size of the packet and the size of the IP header for handling TCP packets.
  • B. The TCP packet modifies the packet size only if no fragmentation occurs.
  • C. Applying commands in a firewall policy determines the largest payload a device can handle in a single TCP segment.
  • D. The maximum segment size permitted in the firewall policy determines whether TCP packets are allowed or denied.
Correct Answer: C

Brave-Dump Community Votes

Answer: C (4 votes) 80%
Answer: B (1 vote) 20%

Community Explanations & Comments (5)

Anonymous User 1 month ago
Selected: C
correct
IBS 1 month ago
Selected: B
I think it should be B:
the TCP MSS value can be changed. By doing this, the firewall will modify the TCP MSS sent by client/server in the TCP syn/syn-ack packets so the remote end receives a smaller MSS and sends smaller packets.
https://community.fortinet.com/fortigate-3/technical-tip-setting-tcp-mss-value-96548
marek Marucha 1 month ago
Selected: C
The maximum segment size (MSS) is only the payload size and does not include the TCP headers.
You configure this parameter within a firewall policy and it determines the largest payload a device can handle in
a single TCP segment.
Anonymous User 3 weeks ago
Selected: C
c
Kurt Richter 2 days ago
Selected: C
mss-adjust does NOT make any adjustments to any packets; it only specifies the maximum TCP segment (and thus packet) size that may be transmitted through the interface