Which component may be considered a field replaceable unit or FRU? 

typedef is used to:

a. Create a type name that is an alias for another type name. b. Make a struct private. c. Cast one struct to another type. d. Initialize struct members.

Which of the following occurs on a network when ICMP is turned off and a router discards packets without sending any notification about its actions?

A. black hole B. agent C. link state D. distance vector