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Cisco Certified DevNet Associate (DEVASC) · Cisco
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
There is no correct answer. Usually firewalls block or allow destination port and usually they are statefull, which means if the packer going out from inbound interface Firewall B, the respond to this packet will automatically allowed back. Lets say it is stateless and doesn`t work that way, in that case the packet coming back to firewall B`s inbound interface from Server B, is source port 443 and destination port is randomly selected by developer comp. Which blocking or opening 443 in Firewall B inbound interface will not change anything. Ping is working and packet is arriving to Server B, and respond get dropped somewhere, in most cases it could be MTU issue specially there is VPN between. There should be another answer with MTU, however MTU is heavy topic for this certification exam.
A and D are incorrect because use port 80 HTTP C is correct due F-B block response API REST. The questions says the packet arrived y server B responsed. So interface incoming in F-B block the return
If it is C and the inbound firewall is blocking port 443, how is the server seeing the request and responding then?