1. What are two reasons that a network istrator would use access lists? (Choose two.)
A. to control vty access into a router
B. to control broadcast traffic through a router
C. to filter traffic as it passes through a router
D. to filter traffic that originates from the router
E. to replace passwords as a line of defense against security incursions
2. A default Frame Relay WAN is classif as what type of physical network?
B. broadcast multi-access
C. nonbroadcast multi-access
D. nonbroadcast multipoint
E. broadcast point-to-multipoint
3.Refer to the exhibit. How many broadcast domains exist in the exhibited topology?