REFER TO THE EXHIBIT. A NETWORK ADMINISTRATOR SUCCESSFULLY PINGS R...

19. Refer to the exhibit. A network administrator successfully pings R1 from R3. Next, the administrator runs the show cdp

neighbors command on R3. The output of this command is displayed.What are two reasons for the absence of R1 in the

output? (Choose two.)

• There is a Layer 2 connectivity problem between R1 and R3.

• The Fa0/0 interface of R1 is configured with an incorrect IP address.

• The no cdp run command has been run at R1.

• The no cdp enable command has been run at Fa0/1 interface of R3.R1 is powered off.