单选题What is the function performed by LSA Type 1?（）ACreate virtual links.BAdvertise external prefixes.CSummarize routes between areas.DAdvertise a router's interfaces and metrics.
单选题
What is the function performed by LSA Type 1?（）
A
Create virtual links.
B
Advertise external prefixes.
C
Summarize routes between areas.
D
Advertise a router's interfaces and metrics.
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