QuestionQ17

Analyze requirements

Which uplink oversubscription ratios satisfy A.B.C.'s requirements, assuming they can be adjusted later based on actual performance and capacity requirements?

Choose two
  • A 12:1
  • B 4:1
  • C 7:1
  • D 24:1
  • E 1:10
Explanation

Lower access-to-aggregation oversubscription ratios preserve more uplink bandwidth and reduce the likelihood of congestion, which supports low-latency, highly available, mission-critical wireless traffic. Cisco’s campus design examples for 5GbE access-point deployments show realistic ratios of about 3.6:1 for a single access switch and 7.2:1 for an access-layer switch stack; therefore, 4:1 and 7:1 are appropriate starting points. Higher ratios increase the risk of transient uplink congestion.

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