When a fault occurs, the fault can be classified to reduce the scope of fault location. Which of the following is not an interface configuration fault?

When a fault occurs, the fault can be classified to reduce the scope of fault location. Which of the following is not an interface configuration fault?
A . The duplex modes of the interfaces on both ends are inconsistent
B . IP address conflict
C . Inconsistent interface authentication
D . The receiving and emitting power of both ends is inconsistent

Answer: D