单选题What is the function performed by LSA Type 1？（）A Create virtual links.B Advertise external prefixed.C Summarize routes between areas.D Advertise a router’s interfaces and metrics.
题目
单选题
What is the function performed by LSA Type 1？（）
A
Create virtual links.
B
Advertise external prefixed.
C
Summarize routes between areas.
D
Advertise a router’s interfaces and metrics.