Refer to the Exhibit

Multiple Choice

Refer to the exhibit. A network engineer applied configuration on R1 to summarize all ISIS routes, but R2 is still receiving specific routes from R1. The engineer has confirmed that both routers are configured with the correct summarization configuration, but R1 is not sending the correct summary routes. Which configuration must be applied to router R1 to summarize routes within Level 1?

A) R1(config-router) # no summary-address 1.0.0.0 255.0.0.0 level-1 R1(config-router) # no summary-address 1.0.0.0 255.0.0.0 level-1
B) R1(config-router) # summary-address 1.0.0.0 255.0.0.0 level-2 summary-address 1.0.0.0 255.0.0.0 level-2
C) R1(config-router) # summary-address 1.0.0.0 255.0.0.0 level-1-2 summary-address 1.0.0.0 255.0.0.0 level-1-2
D) R1(config-router) # summary-address 1.0.0.0 255.0.0.0 level-1 summary-address 1.0.0.0 255.0.0.0 level-1