3.4 Implement mDNS 300-430 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   What is the main function of an mDNS gateway on a Wireless LAN Controller?

   • ATo forward mDNS queries and responses between different VLANs or subnets
   • BTo translate mDNS packets into DNS packets for external resolution
   • CTo block all multicast traffic between wireless clients
   • DTo provide a central database of all services in the network
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2. 27application · medium

   A hotel offers guests Wi-Fi and wants to allow them to discover only the hotel's own Chromecast devices in the lobby, not guest devices that might also be on the network. What is the most effective way to limit mDNS discovery to only the hotel's devices?

   • AUse an mDNS profile that includes only the Chromecast service type.
   • BPlace the hotel's Chromecast devices on a separate VLAN and configure the mDNS gateway to bridge only that VLAN.
   • CConfigure the Chromecast devices with static IP addresses and add them to an ACL.
   • DDisable mDNS on the guest SSID entirely.
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4. 28application · medium

   A company has two SSIDs: 'Corp' for employees and 'Guest' for visitors. Both SSIDs are on different VLANs. The employees need to discover a network scanner that is on the Corp VLAN. Visitors should not be able to discover any internal services. The WLC is already configured with mDNS enabled globally. What is the most efficient way to achieve this?

   • ACreate a separate policy profile for the scanner and assign it to the Corp SSID.
   • BEnable mDNS on the Corp SSID and leave it disabled on the Guest SSID.
   • CEnable mDNS on both SSIDs and configure a service policy that blocks all services for the Guest profile.
   • DConfigure a global mDNS service filter to block all services for the Guest VLAN.
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5. 29application · medium

   A small business has a single WLC and two SSIDs: 'Office' and 'Lab'. The Office SSID is for general staff, and the Lab SSID is for the engineering team. The engineering team needs to discover a specialized test instrument that advertises a custom mDNS service. The general staff should not see this instrument. What is the best way to configure mDNS on the WLC?

   • AEnable mDNS on both SSIDs and create a service policy that allows the custom service only for the Lab policy profile.
   • BPlace the test instrument on the same VLAN as the Lab SSID and rely on L2 multicast.
   • CCreate a static mDNS entry for the test instrument and apply it to the Lab SSID.
   • DEnable mDNS only on the Lab SSID and leave it disabled on the Office SSID.
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6. 30application · medium

   A company has a single SSID used by both executives and regular employees. The executives should be able to discover a confidential printer, but regular employees should not. The WLC supports policy profiles. What is the most appropriate way to implement this?

   • ACreate two different SSIDs, one for executives and one for employees, and apply different mDNS profiles.
   • BUse a single mDNS profile that includes the printer and rely on the printer's own access controls.
   • CConfigure the WLC to filter mDNS based on the user's IP address using ACLs.
   • DApply different mDNS profiles to different policy profiles and map users to those policy profiles via RADIUS.
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