Which two statements are true about multihomed customers? (Choose two)

A.
The customer usually uses provider assigned (PA) address space.

B.
The customer usually uses provider independent (PI) address space.

C.
Static routing is always adequate between the customer and service provider.

D.
BGP is only needed if physical link failures on the primary link cannot be detected.

E.
The customer runs BGP with the service provider using either a private or a public AS number.

Explanation:

1. B use PI when possible so route aggregation of ISP is not prevented
2. E Can be either and private or public AS number. However, the private number is not common practice. See ISP essentials.

Wrong answer
1. A Provider assigned is not common for multi-home, common for Single connected
2. C Static routing is not appropriate when multi-homing to multiple ISP’s
3. D multi-homing can be used for load balancing.