Refer to the exhibit. Two directly connected routers are unable to ping each other through the only active serial interfaces. What is the problem?
- The IP addressing scheme is incorrect.
- Loopbacks should be set on R1 and R2.
- PPP encapsulation needs to be configured on R1.
- The bandwidth settings must be the same on R1 and R2.
- A no shutdown command needs to be configured on both serial interfaces.
Exam with this question: CCNA Discovery 4: DCompNtwk Chapter 8 Exam