Refer to the exhibit. A diagram of a router connected to an MPLS-enabled ATM switch via an LC-ATM MPLS interface, and the partial configuration for the MPLS-enabled ATM switch and router are shown. Which statement describes what is incorrect about the configuration?
Exhibit:

A.
The control VPI/VCI numbers do not match.

B.
The ATM VPI range of 2-3 is invalid.

C.
CEF has not been enabled on the router ATM 3/0.2 subinterface.

D.
VC-merge has not been enabled on the switch ATM 0/1/2 interface.

E.
The router has not been configured to specifically use LDP.

Explanation:

A: no they don’t (5/31 =! 6/31) so this statement is correct.
B: this statement is not correct as you can use vpi 2 and 3
C: No CEF has not been enabled on the interface (but it HAS been configured globally) Statement correct
D: No VC-merge has not been configured n the interface (but is still configured on the switch as this is default) statement is correct
E: “mpls label protocol ldp” has not been specified so this statement is correct.
E must be the correct answer.