CCNP 350-401 ENCOR Question 45 DISCUSSION

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  • 2023-06-21
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    Which two methods are used by an AP that is trying to discover a wireless LAN controller? (Choose two.)

    A. Cisco Discovery Protocol neighbor
    B. querying other APs
    C. DHCP Option 43
    D. broadcasting on the local subnet
    E. DNS lookup CISCO-DNA-PRIMARY.localdomain

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    Which two methods are used by an AP that is trying to discover a wireless LAN controller? (Choose two.)

    A. Cisco Discovery Protocol neighbor
    B. querying other APs
    C. DHCP Option 43
    D. broadcasting on the local subnet
    E. DNS lookup CISCO-DNA-PRIMARY.localdomain

    Correct Answer: CD

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    1 Comments

    test2024

    C. DHCP Option 43
    DHCP Option 43 是一种常见的方法，用于让AP通过DHCP服务器获得WLC的IP地址。在配置中，DHCP服务器会提供包含WLC IP地址的Option 43，当AP通过DHCP获取IP地址时，AP会同时获取WLC的IP地址，从而能建立连接。
    正确：DHCP Option 43 是一种标准的WLC发现方法。

    D. broadcasting on the local subnet（在本地子网广播）
    AP会使用局域网内的广播消息来发现WLC。如果WLC在AP的同一子网内，AP可以通过广播消息来寻找WLC。这是一种自动发现的常用方法，尤其是在没有DHCP Option 43或DNS的情况下。
    正确：本地子网广播是AP发现WLC的标准方法之一。

    E. DNS lookup CISCO-DNA-PRIMARY.localdomain
    AP可以通过DNS查找来发现WLC的IP地址。在一些部署中，AP会查找特定域名（如CISCO-DNA-PRIMARY.localdomain），然后通过DNS服务器获取WLC的IP地址。这种方法主要用于某些高级部署或多子网环境。
    正确：DNS查找是AP发现WLC的常用方法之一。

    2024-10-22 23:13:25
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