READ Free Dumps For Cisco- 400-101

Question ID 18545	Refer to the exhibit. Which two statements about the output are true? (Choose two.)
Option A	802.1D spanning tree is being used.
Option B	Setting the priority of this switch to 0 for VLAN 1 would cause it to become the new root.
Option C	The hello, max-age, and forward delay timers are not set to their default values.
Option D	Spanning-tree PortFast is enabled on GigabitEthernet1/1.
Correct Answer	A,B

Explanation Explanation: 802.1D is the standard for Spanning tree, which is being used here. For priority, The priority order starts from 0 (yes, 0 is valid) and then increases in 4096. 0, 4096, 8192, 12288, . Etc. The lower the number is, the higher is the priority. Here we see that the current root has a priority of 8192, so configuring this with a priority of 0 will make it the new root.

Question ID 18546	Which technology can be affected when switches are used that do not support jumbo frames?
Option A	802.1x
Option B	BFD
Option C	OSPFv3
Option D	802.1q
Correct Answer	D

Explanation Explanation: The 802.1Q tag is 4 bytes. Therefore, the resulting Ethernet frame can be as large as 1522 bytes. If jumbo frames are not supported, then typically the MTU on an Ethernet link needs to be lowered to 1496 to support this extra 802.1Q tag.

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