Exam 300-420 topic 1 question 65 discussion

I think its A & C

B can not work with C. The basic idea of MSTP is to have all vlans configured on all interfaces. If this is the case, then you can not have something like VTP disturbing that system via going around and pruning vlans. If we are choosing C, then the other one may be A.

Lets not forget this is a Cisco exam and unless stated that another vendor is used or a specific protocol is not compatible, go with Cisco proprietary protocols. I would say it's A and C.

Realistically speaking A and C are the best answers. MSTP requires you to configure each switch manually causing more administrative overhead. It's also fishy that the answer said "MST" instead of MSTP so that's another reason i am choosing A instead of B.

Answers are B & C please hear me out so you don't get this wrong on the exam. - We need a Protocol that is best suited to reduce admin overhead (RSTP and MSTP are both suited) - We need a protocol that helps us reduce VLAN configuration, this is without a doubt VTP. - We need a protocol that reduces MANUAL CONFIGURATION, unfortunately RSTP does not meet this requirement because you have to configure everything manually on every switch in the network therefor leaving MSTP as the our only and final winner. Hope this helps you guys.

The correct answers are B & C Rapid PVST+ requires too much manual configuration on it's ports, one of the requirements is to reduce Administrator Overhead, you reduce Admin Overhead with MST, MSTP is the entire reason you can run it on Data Centers because of how many VLANs can be ran. VTP Allows VLAN to flow through out the Network again reducing Administrator Overhead. MSTP is also fast to converge. I hope this clears up your doubts.

A. Implement Rapid PVST+ instead of STP. C. Use VTP to propagate VLAN information and to prune unused VLANs. To achieve the stated goals of reducing the impact of topology changes, reducing the time spent on network administration, and reducing manual configuration errors, the architect should implement the following solutions: A. Implement Rapid PVST+ (Per VLAN Spanning Tree Plus) instead of STP (Spanning Tree Protocol). Rapid PVST+ is based on the IEEE 802.1w standard (Rapid Spanning Tree Protocol) and converges faster than the traditional 802.1d STP. This will help to reduce the impact of topology changes. C. Use VTP (VLAN Trunking Protocol) to propagate VLAN information and to prune unused VLANs. VTP is a Cisco proprietary protocol that simplifies VLAN administration across multiple switches by automatically distributing VLAN configuration information. This reduces the time spent on network administration and the potential for manual configuration errors.

environement may include non cisco switch so in this case i will go wtih MST and VTP as PVST+ is cisco proprietary. MST is standard.

AC is the best answer. CD will not reduce the impact of topology change.

A - N/A - running Spanning Tree 802.1d B - N/A - running Spanning Tree 802.1d C and D E - N/A

B- implement MST require certain downtime if network contrains lots of switches D- not related to any requirement E- DTP is not propagate VLAN info, instead how the trunk link form so rest A, C A - RPVST and PVST (STP) can coexist C- setup VTP server (although answer does not mention but requrire when purning) and purning unused VLAN..... on the other hand, the biggest errors is removing VLAN(s) on the VTP server accidentally and propergate to whole switch network. So most of real implementation are using VTP mode transparent instead

Also think A and C

For MST to work properly, the config has to be correctly configured on every switch in the L2 domain. I think this goes against the requirement for "reduce manual configuration errors", so I'm going with A and C.

A C is answer

A customer's current Layer 2 infrastructure is running Spanning Tree 802.1d, and all configuration changes are manually implemented on each switch. An architect must redesign the Layer 2 domain to achieve these goals: * reduce the impact of topology changes ==> MST * reduce the time spent on network administration ==> VTP (with MST vtp3) * reduce manual configuration errors ==> VTP Pruning ??? Which two solutions should the architect include in the new design? (Choose two.) I strongly believe MST and VTP ( B and C) should be appropriate here. Please comment

It's A and C

I believe its A &C as well