Given the following access list:
ip access-list 100 deny tcp any any eq 646
ip access-list 100 permit ip any any
Which statement is true?

A.
The access list blocks Telnet session and should be applied as an input filter on all of the VT
interfaces for security reasons.

B.
The access list blocks LDP traffic and should be applied as an input filter on the PE-router’s
interface
connected to the CE to clock an attempt by an outside source from exchanging labels with the PErouter.

C.
The access list blocks TCP and should be applied as an input filter on the PE-router’s
interfaced to the CE to block an attempt by an outside source from using programs link traceroute
to identify the core routers.

D.
The access list blocks UDP and should be applied as an input filter on the PE-router’s
interfaced to the CE to block an attempt by an outside source from using programs link traceroute
to identify the core routers.