单项选择题
A. R3 is an ABR.
B. R3 is not connec ted to the backbone.
C. R3 has four neighbors.
D. R3 is the DR for area 2.
单项选择题 Refer to the exhibit. OSPF is running throughout the network. You want to minimize the propagation of LSAs into and out of A rea 1. Which OSPF feature would best achieve this goal? （）
单项选择题 The administrator wants to verify the current state of the OSPF database loading process. Which show command should the administrator use?（）
多项选择题 Refer to the exhibit. A network administrator wants to reduce the number of OSPF routes advertised from Area 1 into Area 2. As the router configuration specialist, what two things would you do to accomplish this goal?（）
