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Q91. Service provider XYZ plans to provide dedicated Internet access and MPLS L3VPN services to business customers. XYZ has these design specifications: 

.  MP-BGP running on the core MPLS P routers with external Internet routes. 

. The core network will include 16 Point of Presence IP POPs throughout the Asia-Pacific region. . An additional nine non-P routers will use EBGP peering with multiple providers for Internet traffic. . An additional 50 PE routers will provide end customers with dedicated Internet access and L3VPN services throughout the Asia-Pacific region. 

In what two ways can the MP-BGP be removed from the MPLS P core routers and still provide dedicated Internet access and MPLS L3VPN services? (Choose two.) 

A. Disable BGP from the MPLS core P routers and have the MPLS core P routers run OSPF and LDP. 

B. Enable separate BGP control plane routers using a route reflector server concept that will be fully meshed with peer route reflector servers and have clients as MPLS PE routers and EBGP peering routers. 

C. Enable all EBGP routers as route reflector servers and MPLS PE routers as their clients. 

D. It is not possible to disable BGP from the MPLS core P routers without impacting the dedicated Internet access and MPLS L3VPN services. 

Answer: BC 


Q92. Which two factors can significantly affect the OSPF network convergence time? (Choose two.) 

A. the tuning of OSPF LSA timers 

B. the number of OSPF routes 

C. the diameter of the OSPF network 

D. different processor capabilities of devices 

Answer: AD 


Q93. You work for a large company that has just acquired another smaller company. You have been asked to lead a group of SAN experts from both companies to design the integration plan that will be used to interconnect the SANs and migrate the data from the newly acquired company to the main storage arrays. The first thing that the team discovers is that the two SANs have the same domain IDs. 

As the SAN team lead, what would you advise your team to do so that you can interconnect the two SANs while minimizing disruption? 

A. Use FCIP with Write Acceleration and IVR version 1 with a transit VSAN to expedite the data transfer between the two SANs. 

B. Change the domain IDs on both SANs so that they are both unique and then connect ISLs between the SANs. 

C. Use IVR NAT with a transit VSAN between the SANs. 

D. The two SANs cannot be merged without disruption. 

Answer:


Q94. What are two design advantages to using virtual port channel? (Choose two.) 

A. enhanced system availability through multiple systems 

B. reduced Spanning Tree Protocol convergence time 

C. loop management without use of Spanning Tree Protocol 

D. ability to use Spanning Tree Protocol blocked ports to forward traffic 

E. enhanced ability to recover from Spanning Tree Protocol changes 

Answer: AC 


Q95. In an OSPF network, users in a particular OSPF non-backbone area are complaining about slow access speeds to a shared corporate resource in another OSPF area. Traceroutes show that theusers are taking a suboptimal default route to the destinations. Which solution will improve access speed? 

A. Make the area totally stubby so that the default can be followed along the best path. 

B. Create a virtual link between the areas so that traffic can shortcut directly between them. 

C. Implement policy routing to channel the traffic in the optimal direction. 

D. Leak specific summaries on the ABRs for the remote subnets in addition to the default. 

Answer:


Q96. A large enterprise customer is migrating thousands of retail offices from legacy TDM circuits to an Ethernet-based service. The network is running OSPF and has been stable for many years. It is now possible to backhaul the circuits directly to the data centers, bypassing the regional aggregation routers. Which two networking issues need to be addressed to ensure stability with the new design? (Choose two.) 

A. Nothing will change if the number of offices is the same. 

B. Nothing will change if the number of physical interfaces stays the same. 

C. The RIB will increase significantly. 

D. The FIB will increase significantly. 

E. The amount of LSA flooding will increase significantly. 

F. The size of the link-state database will increase significantly. 

Answer: EF 


Q97. Refer to the exhibit. 

After this new OSPF design with per-packet load balancing was implemented, Host A reported that large file downloads from Server A became slow and sometimes failed. The operations team discovered that packets are arriving out of order on R1. Which cost-conscious redesign action will fix the issue? 

A. Upgrade all links to 10 Gbps. 

B. Add an IP SLA probe on R1 and R4. 

C. Adjust the OSPF auto-cost reference bandwidth on R4. 

D. Adjust the OSPF auto-cost reference bandwidth on all routers. 

Answer:


Q98. Refer to the exhibit. 

The design is being proposed for use within the network. The CE devices are OSPF graceful restart-capable, and the core devices are OSPF graceful restart-aware. The WAN advertisements received from BGP are redistributed into OSPF. A forwarding supervisor failure event takes place on CE A. During this event, how will the routes learned from the WAN be seen on the core devices? 

A. via CE A and CE B 

B. via CE A 

C. via CE B 

D. no WAN routes will be accessible 

Answer:


Q99. You have been tasked with designing a data center interconnect to provide business continuity. You want to encrypt the traffic over the DCI using IEEE 802.1AE MACsec to prevent the deployment of any firewall or IPS. Which two interconnect technologies support MACsec? (Choose two.) 

A. EoMPLS 

B. MPLS Layer 3 VPN 

C. DMVPN 

D. OTV 

E. VPLS 

F. GET VPN 

Answer: AE 


Q100. When designing a network, which two security features should be added to the design to protect hosts from potential IPv6 neighbor discovery denial of service attacks at the access layer? (Choose two.) 

A. SEND 

B. RA Guard 

C. IKEv2 

D. IPsec 

E. DMVPNv6 

Answer: AB