- A. The subnet mask for this interface is 255.255.255.248.
- B. The subnet mask for this interface is 255.255.255.252.
- C. The IP address that is configured on s0/0/0 is a public address.
- D. This interface can be enabled by issuing a no shutdown command.
- E. The default encapsulation protocol for a Cisco serial interface is PPP.
Answer: Option D.
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