---
topology_description:
type: Single
servers:
- &1
address: a:27017
avg_rtt_ms: 5
type: Standalone
tags:
- data_center: dc
operation: write
read_preference:
mode: SecondaryPreferred
tags:
- data_center: nyc
candidate_servers:
- *1
eligible_servers:
- *1
suitable_servers:
- *1
in_latency_window:
- *1