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Q61. You are tasked with implementing a 1000-phone remote access solution, where phone calls will traverse a WAN edge router. Assuming all of the following features are supported in a hardware-assisted manner, which of the following will have the most negative impact 

on the delay of the packet? 

A. encryption 

B. stateful firewall 

C. MPLS encapsulation 

D. GRE encapsulation 

Answer: A 


Q62. Refer to the exhibit. 

A service provider using IS-IS has designed this network with all core links at the Layer 2 control plane. How will they adjust the design to reduce the flooding of update packets? 

A. Change the area type of the links to be level-1-2 to allow level-1 updates. 

B. Change the network type of the links from broadcast to point-to-point. 

C. Use IS-IS mesh groups. 

D. Configure SPF timers to be more aggressive so that updates are more quickly cleared from the queue. 

Answer: C 


Q63. In an MPLS-VPN environment, what is the effect of configuring an identical set of route targets for a particular VRF, but then configuring nonidentical route distinguisher across multiple PE devices? 

A. The routes will be correctly handled by the control plane, but there will be instances where routes take up twice as much memory. 

B. The routes will propagate to the remote PE, but the PE will never install them in its forwarding table. 

C. The routes will be rejected by the remote PE because they have a different RD than its routes. 

D. The routes will not even be sent to any remote PE with a different RD. 

Answer: A 


Q64. As part of the security protocol for your network design, you have designated that option 82 is enabled for DHCP snooping. When option 82 is enabled, which information will be added to the DHCP request? 

A. switch MAC address and VLAN, module, and port 

B. remote ID and circuit ID 

C. switch IP address and VLAN, module, and port 

D. switch MAC address and switch IP address 

Answer: A 


Q65. Your company requires two diverse multihop External Border Gateway Protocol peerings to a partner network. Which two methods would you use to improve lost peer detection? (Choose two.) 

A. Use Bidirectional Forwarding Detection for the peers. 

B. Use Selective Address Tracking and match the peers. 

C. Use subsecond keepalives for the peers. 

D. Use subsecond hold timers for the peers. 

E. Use Fast Peering Session Deactivation for the peers. 

F. Use subsecond minimum route advertisement Interval timers for the peers. 

Answer: BE 


Q66. Refer to the exhibit. 

On this MPLS-based network ring, links have failed between router A and router E. These failures formed microloops while the network converged, when A forwarded traffic to B but B forwards it back to A. 

Which technology is the simplest solution to avoid microloops without enabling a new protocol in the network? 

A. TE Fast ReRoute 

B. IP Fast ReRoute 

C. Loop-Free Alternate 

D. Remote Loop-Free Alternate 

Answer: D 


Q67. You are asked to design a large campus network that will be using multicast for data transport. Which feature should be enabled at the Layer 2 access edge for host-only ports? 

A. PortFast 

B. BPDU guard 

C. PIM-SM 

D. PIM query interval 

Answer: A 


Q68. A company plans to use BFD between its routers to detect a connectivity problem inside the switched network. An IPS is transparently installed between the switches. Which packets should the IPS forward for BFD to work under all circumstances? 

A. IP packets with broadcast IP source addresses 

B. IP packets with identical source and destination IP addresses 

C. fragmented packets with the do-not-fragment bit set 

D. IP packets with the multicast IP source address 

E. IP packets with the multicast IP destination address 

F. IP packets with the destination IP address 0.0.0.0 

Answer: B 


Q69. A company wants to use an external appliance between its data center and WAN to optimize email and HTTP communications. The traffic flow must pass this appliance in both directions. The appliance is connected with only one interface to a Cisco IOS router and has a single IP address. Which two adjustments can you make to the network design so that the appliance is added into the traffic path? (Choose two.) 

A. Configure static routes to route the traffic to the appliance. 

B. Adjust the dynamic routing to route the traffic to the appliance. 

C. Configure NAT to force the traffic to the appliance. 

D. Configure a route map at the data center-side interface to forward the traffic to the appliance IP address. 

E. Configure a route map at the appliance-facing interface to forward the traffic to the appliance IP address. 

F. Configure a route map at the WAN-side interface to forward the traffic to the appliance IP address. 

Answer: DF 


Q70. When developing an MVPN design, which performance and scalability consideration must be taken into account? 

A. CE end-to-end PIM adjacency establishment 

B. multicast data sent to all PE routers on the default MDT 

C. RP placement in the multicast VRF 

D. RP placement in the customer network 

Answer: B