3. (单选题, 3分)路由器A的路由表项是: Net1 3 C Net2 4 D Net4 3 F Net5 10 E Net6 8 G Net7 2 B 根据RIP路由协议,路由器A收到来自其邻居路由器B的RIP包,内容是: Net1 2 D Net2 4 C Net3 3 H Net4 3 F Net5 7 G Net6 4 G Net7 4 C 根据RIP路由算法,A中信息更新后,内容是:()
A. Net1 2 D Net2 4 C Net3 3 H Net4 3 F Net5 7 G Net6 4 G Net7 4 C
B. Net1 3 B Net2 5 B Net3 4 B Net4 4 B Net5 8 B Net6 5 B Net7 5 B
C. Net1 2 B Net2 4 D Net3 3 B Net4 3 F Net5 7 B Net6 4 B Net7 4 B
D. Net1 3 C Net2 4 D Net3 4 B Net4 3 F Net5 8 B Net6 5 B Net7 2 B