I think it's A & C

I believe it's A &C as well

Selected Answer: BC 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 the right fit here. Please comment

Selected Answer: AC 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

Selected Answer: AC Realistically, A and C are the best answers. MSTP needs you to configure each switch manually, which creates more administrative overhead. It's also suspicious that the answer said "MST" instead of MSTP, so that's another reason i am choosing A instead of B.

Selected Answer: AC It's A and C

A C is answer

Selected Answer: AC For MST to work properly, the config has to be correctly set 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.

Selected Answer: AC A. Implement Rapid PVST+ instead of STP. C. Use VTP to propagate VLAN information and to prune unused VLANs. To meet 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 these 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 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 chance of manual configuration errors.

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.

Selected Answer: AC Also think A and C

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

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.

VTP server mode not recommeded

Selected Answer: BC 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.

Selected Answer: BC 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.

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 by going around and pruning vlans. If we are choosing C, then the other one may be A.

Selected Answer: BC A. Implement Rapid PVST+ instead of STP This is the most tempting distractor. Rapid PVST+: ✅ Faster convergence than 802.1D. But: ❌ Still keeps one STP instance per VLAN. ❌ Does not cut administration time. ❌ Does not reduce manual VLAN configuration errors. MST gives both scalability and less impact from topology changes, which makes it the better design answer.

A. Implement Rapid PVST+ instead of STP This is the most tempting distractor. Rapid PVST+: ✅ Faster convergence than 802.1D. But: ❌ Still keeps one STP instance per VLAN. ❌ Does not cut administration time. ❌ Does not reduce manual VLAN configuration errors. MST gives both scalability and less impact from topology changes, which makes it the better design answer.