[多选]

In a lab, R1 connects to R2, which connects to R3. R1 and R2 each have several working interfaces, all assigned addresses in class A network 10.0.0.0. Router R3 has some working interfaces in class A net work 10.0.0.0, and others in class B network 172.16.0.0. The engineer experiments with the auto -summary command on R2 and R3, enabling and disabling the command in various combinations.
Which of the following combinations will result in R1 seeing a rout e for 172.16.0.0/16, instead of the individual subnets of class B network 172.16.0.0?（）

简述斯宾塞的社会进化学说。 生态学 股票 Refer to the exhibit. Initially， LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA.  Which two statements are true about the possible result of attaching the second link？（） The switch port attached to LinkB will not transistion to up.。 One of the two switch ports attached to the hub will go into blocking mode when a BPDU is received.。 Both switch ports attached to the hub will transition to the blocking state.。 A heavy traffic load could cause BPDU transmissions to be blocked and leave a switching loop. 。 The switch port attached to LinkA will immediately transition to the blocking state.。 有效期内某一时点借款人的可用贷款额度是由（）决定的。 借款人希望得到的贷款数额。 抵押物价值。 核定的贷款额度。 已使用的贷款总额。 未清偿贷款余额。

In a lab, R1 connects to R2, which connects to R3. R1 and R2 each have several working interfaces, all assigned addresses in class A network 10.0.0.0. Router R3 has some working interfaces in class A net work 10.0.0.0, and others in class B network 172.16.0.0. The engineer experiments with the auto -summary command on R2 and R3, enabling and disabling the command in various combinations.
Which of the following combinations will result in R1 seeing a rout e for 172.16.0.0/16, instead of the individual subnets of class B network 172.16.0.0?（）