350-601 · Question #74
350-601 Question #74: Real Exam Question with Answer & Explanation
The correct answer is D: The host in EPG Client can connect to TCP destination port 80 on the webserver in EPG Web.. Reverse filter and apply in both directions is default. If a filter allows traffic from any consumer port to a provider port (e.g. 8888), if reverse port filtering is enabled and the contract is applied both directions (say for TCP traffic), either the consumer or the provider ca
Question
A host in EPG Client wants to talk to a webserver in EPG Web. A contract with default settings is defined between EPG Client and EPG Web, which allows TCP communication initiated by the client toward the webserver with TCP destination port 80. Which statement is true?
Options
- AIf EPG Web is made a preferred group member, a contract between EPG Client and EPG Web is
- BIf vzAny is configured to consume and provide a "deny all" contract, traffic between EPG Client
- CThe host in EPG Client can connect to TCP destination port 80 on the webserver in EPG Web.
- DThe host in EPG Client can connect to TCP destination port 80 on the webserver in EPG Web.
Explanation
Reverse filter and apply in both directions is default. If a filter allows traffic from any consumer port to a provider port (e.g. 8888), if reverse port filtering is enabled and the contract is applied both directions (say for TCP traffic), either the consumer or the provider can initiate communication. The provider could open up a TCP socket to the consumer using port 8888, whether the provider or consumer sent traffic first. x/Operating_ACI/guide/b_Cisco_Operating_ACI/b_Cisco_Operating_ACI_chapter_01000.html
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