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300-365 · Question #133

Must ensure that new service advertisement are learned if the SP-DB full mDNS setting?

The correct answer is A. MAC Priority. In Cisco mDNS SP-DB configuration, the MAC Priority setting controls which entries are retained or replaced when the database reaches capacity, ensuring new service advertisements can still be learned.

Mobility Deployment

Question

Must ensure that new service advertisement are learned if the SP-DB full mDNS setting?

Options

  • AMAC Priority
  • BmDNS gate
  • CService Advertisiment
  • DLSS

How the community answered

(15 responses)
  • A
    87% (13)
  • B
    7% (1)
  • C
    7% (1)

Why each option

In Cisco mDNS SP-DB configuration, the MAC Priority setting controls which entries are retained or replaced when the database reaches capacity, ensuring new service advertisements can still be learned.

AMAC PriorityCorrect

MAC Priority is the SP-DB setting that governs how the controller handles new mDNS service advertisements when the Service Provider Database has reached its maximum capacity. By assigning priority based on MAC address, the system can evict lower-priority entries and insert new service records, ensuring that newly advertised services are still learned and distributed across the network.

BmDNS gate

mDNS gate refers to the function that controls forwarding or filtering of mDNS traffic between network segments, not the mechanism that manages database capacity for new service advertisements.

CService Advertisiment

Service Advertisement describes the general process by which devices announce mDNS services on the network, but it is not a specific SP-DB configuration setting that governs behavior when the database is full.

DLSS

LSS (Location Specific Services) is a feature that restricts mDNS service visibility based on location or VLAN groupings, not a setting that controls how the SP-DB handles overflow when at capacity.

Concept tested: mDNS SP-DB MAC Priority full database advertisement handling

Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-12/config-guide/b_wl_17_12_cg/m_mdns_service_discovery_gateway.html

Topics

#mDNS#SP-DB#service advertisement#MAC priority

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