813交换有 几题有疑问 请高手指点

delly82

14 Given the above partial configuration, which two statements are true about VLAN traffic? (Choose two.)

A. VLANs 1-5 will use fa0/10 as a backup only.

B. VLANs 6-10 will use fa0/10 as a backup only.

C. VLANs 1-5 will be blocked if fa0/10 goes down.

D. VLANs 1-10 are configured to load share between fa0/10 and fa0/12.

E. VLANs 6-10 have a port priority of 128 on fa0/10. ————————》E为什么错？？

153  答案是D  为什么不是A
Refer to the exhibit. GLBP has been configured on the network. When the interface serial0/0/1 on router R1 goes down, how is the traffic coming from Host1 handled?

A. The traffic coming from Host2 is forwarded through router R2 with no disruption. The traffic from Host1 is dropped due to the disruption of the load balancing feature configured for the glbp group.

B. The traffic coming from both hosts is temporarily interrupted while the switchover to make R2 active occurs.

C. The traffic coming from Host2 is forwarded through router R2 with no disruption. Host1 sends an ARP request to resolve the MAC address for the new virtual gateway.

D. The traffic coming from Host1 and Host2 is forwarded through router R2 with no disruption.

217 答案CE。。。。 什么意思啊 不是BD吗

Which two items are most important for managing the long-term success of high availability?(Choose two.)

A. completing aggressive implementation schedule

B. Stateful Switchover

C. company and user expectations

D. Nonstop Forwarding

E. change control processes

F. dual devices and dual links.

281 答案BD  离谱点吧。。。

Which two statements correctly describe characteristics of the PortFast feature? (Choose two.)

A. STP will be disabled on the port.

B. PortFast can also be configured on trunk ports.

C. PortFast is required to enable port-based BPDU guard.

D. PortFast is used for both STP and RSTP host ports.

E. PortFast is used for STP-only host ports.

chinese_ys

我觉得14题应该选de。因为一旦端口0／12出现问题，那么vlan6-10就会使用端口0／10.

151题，答案应该就是d。

281题，portfast的确可以在trunk上启用，但要小心。

allencheng

14题，BD是肯定对的，但题目说是给出部分配置，没说是默认设置。所以E是不一定。

153题解释，见 http://bbs.hh010.com/thread-111263-1-1.html