Are these 2 questions 100% correct?

sukur1998222

z               Okay I think answer can be A for this
( I think the answer can be A.)
Link for diagr
http://www.ciscopress.com/articl ... 578504&seqNum=2
http://www.9tut.com/troubleshooting-questions

NOW SECOND QUESTIOB




https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/5234-5.htmlbelow text
Description of the Technology

With STP, the key is for all the switches in the network to elect a root bridge that becomes the focal point in the network. All other decisions in the network, such as which port to block and which port to put in forwarding mode, are a when you implement a root bridge in a switching network, you usually refer to the root bridge as the root switch. a convert environment, which is different from a bridge environment, most likely deals with multiple VLANs. . Each VLAN must have its own root bridge if each VLAN is a separate broadcast domain. The roots for the different VLANs can all reside in a single switch or in various switches.

Note:  The selection of the root switch for a particular VLAN is very important. You can choose the root switch, or you can let the partners decide, which is risky. If you do not control the root selection process, there can be suboptimal paths in your network

All the switches exchange information for use in the root switch selection and for the subsequent configuration of the network. Bridge protocol data units (BPDUs) carry this information. Each switch compare the parameters in the BPDU that the switch sends to a neighbor with the parameters in the BPDU that the switch receives from the neighbor.

In the STP root selection process, less is better. If Switch A advertises a root ID that is a lower number than the root ID that Switch B advertises, the information from Switch A is better. Switch B stops the advertisement of its root ID, and accepts the root ID of Switch A.

I think B ( I think this question can answer B )

Please IF so
( Please read my reference. If someone thinks about it, please share your thoughts. )

小乔

建议你按照题库答案