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[Practice Question] Which 3 functions are performed by intermediary network devices..

FreddyIWFreddyIW Member Posts: 27 ■□□□□□□□□□
in CCNA & CCENT
Hello, I want to ask about this question I got in my Networking Academy course :D.

Red color = correct answers

A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
  • regenerating data signals
  • acting as a client or a server
  • providing a channel over which messages travel
  • applying security settings to control the flow of data
  • notifying other devices when errors occur
  • serving as the source or destination of the messages

Why isn't the 3rd choice "providing a channel over which messages travel" the correct answer ?
And in the 4th choice, which security settings that control the flow of data ?

Thanks :)
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    aftereffectoraftereffector Member Posts: 525 ■■■■□□□□□□
    Security settings could be access control lists (ACLs), among other things. Regarding the 3rd option, a channel over which messages travel seems to me to point towards the actual transport layer - copper and fiber cables - as opposed to a "network device".
    CCIE Security - this one might take a while...
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    dave0212dave0212 Member Posts: 287
    aftereffector wrote: »
    Security settings could be access control lists (ACLs), among other things. Regarding the 3rd option, a channel over which messages travel seems to me to point towards the actual transport layer - copper and fiber cables - as opposed to a "network device".

    +1

    Agree "providing a channel over which messages travel" would be more related to the connectivity rather than the device/hop
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    FreddyIWFreddyIW Member Posts: 27 ■□□□□□□□□□
    aftereffector wrote: »
    Security settings could be access control lists (ACLs), among other things. Regarding the 3rd option, a channel over which messages travel seems to me to point towards the actual transport layer - copper and fiber cables - as opposed to a "network device".
    dave0212 wrote: »
    +1

    Agree "providing a channel over which messages travel" would be more related to the connectivity rather than the device/hop


    Oh yeah that makes sense icon_thumright.gif. And you mean physical layer right.
    Thanks =)
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    aftereffectoraftereffector Member Posts: 525 ■■■■□□□□□□
    D'oh! Physical layer.
    CCIE Security - this one might take a while...
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    bharvey92bharvey92 Member Posts: 419
    Aftereffector is correct, the channel would be a phyiscal layer technology eg: Copper, Fibre, Wireless.

    The security settings could be an ACL or Zone Based Firewall.

    I remember a question like this when first starting my CCNA studies and it can throw you at 1st.
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