CCNP 350-401 ENCOR Question 48 DISCUSSION

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  • 2023-06-21
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    A client with IP address 209.165.201.25 must access a web server on port 80 at 209.165.200.225. To allow this traffic, an engineer must add a statement to an access control list that is applied in the inbound direction on the port connecting to the web servers.
    Which statement allows this traffic?

    A. permit tcp host 209.165.200.225 lt 80 host 209.165.201.25
    B. permit tcp host 209.165.201.25 host 209.165.200.225 eq 80
    C. permit tcp host 209.165.200.225 eq 80 host 209.165.201.25
    D. permit tcp host 209.165.200.225 host 209.165.201.25 eq 80

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    A client with IP address 209.165.201.25 must access a web server on port 80 at 209.165.200.225. To allow this traffic, an engineer must add a statement to an access control list that is applied in the inbound direction on the port connecting to the web servers.
    Which statement allows this traffic?

    A. permit tcp host 209.165.200.225 lt 80 host 209.165.201.25
    B. permit tcp host 209.165.201.25 host 209.165.200.225 eq 80
    C. permit tcp host 209.165.200.225 eq 80 host 209.165.201.25
    D. permit tcp host 209.165.200.225 host 209.165.201.25 eq 80

    Correct Answer: C

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    1 Comments

    test2024

    the inbound traffic coming from the port connected to the server will contain the server's IP address therefore the ACL statement must have the source IP as the server's IP. The client will reach the server using TCP 80 as the destination so the return traffic sourced by the server will have port 80 as the source TCP. Which in this case I'd go with C.

    2024-10-23 01:51:24
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