Q31. Refer to the exhibit.
Which two options are two characteristics of the single-tier headend architecture for DMVPN designs? (Choose two.)
A. The mGRE and crypto functions are on the same router.
B. Each DMVPN cloud has two different headend routers for high availability purposes.
C. It is used in dual-cloud topologies for spoke-to-spoke connectivity.
D. It only supports hub-and-spoke connectivity.
E. Spokes cannot be used as RP in multicast deployments.
Answer: AC
Q32. ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data. Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)
A. 6VPE
B. 6PE
C. dual stack
D. ISATAP
E. 6to4
F. IPv6INIP
Answer: CF
Q33. You have created a network design that has two point-to-point Metro Ethernet circuits extending a single production VLAN between two data centers. Under normal circumstances, one circuit will carry traffic and spanning tree will block the other. If the company wants you to make use of both circuits to carry production traffic, which two technologies and features will you investigate to integrate into your network design? (Choose two.)
A. EtherChannel
B. MST
C. Multichassis EtherChannel
D. PVST+
Answer: AC
Q34. Refer to the exhibit.
What limitations exist in this design, given that the access layer devices are expected to steadily increase by two devices per week for the next year?
A. scalability
B. serviceability
C. redundancy
D. resiliency
Answer: A
Q35. You are the lead IP network designer for a new service provider called XYZ, and you are working closely with the CTO to finalize design requirements. The CTO informs you that they want to transport IPv6 prefixes of customers through the XYZ network at this time; however, they need your advice on whether to deploy dual stack or MPLS 6PE/6VPE. Which two options do you recommend? (Choose two.)
A. Build a dual-stack network. Enable BGP in the core. Redistribute EBGP routes into IGP.
B. Use MPLS 6PE to simplify the operation and keep a BGP-free core. When the LDPv6 becomes available, change to 4PE or keep the core using both IPv4 and IPv6. The main goal is to keep the core BGP-free and ensure that IPv4, IPv6, VPNv4, and VPNv6 are all label-switched.
C. Use MPLS 6VPE to simplify the operation and keep a BGP-free core. When the LDPv6 becomes available, change to 4PE or keep the core using both IPv4 and IPv6. The main goal is to keep the core BGP-free and ensure that IPv4, IPv6, VPNv4, and VPNv6 are all label-switched.
D. Prepare the dual-stack infrastructure from the beginning, even if BGP prefixes would have to be announced via IPv4 in case you decide to maintain the BGP-free core.
Answer: BD
Q36. 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
Q37. Refer to the exhibit.
A service provider would like to use Ethernet OAM to detect end-to-end connectivity failures between SP-SW1 and SP-SW2. In which two of these ways can you design this solution? (Choose two.)
A. Enable Y.1731 Connectivity Fault Management on the SP switches.
B. E-LMI PDUs must be forwarded over VPLS.
C. Cisco Discovery Protocol PDUs must be forwarded over the VPLS.
D. Use upward maintenance endpoints on the SP switches.
E. Enable IEEE 802.1ag Connectivity Fault Management on the SP switches.
Answer: DE
Q38. When network summaries are created for access networks in a network design, how does it change the behavior of the Shortest Path First (SPF) running in a backbone area?
A. There would be fewer incremental SPFs.
B. There would be fewer partial SPFs.
C. There would be fewer full SPFs.
D. There would be no change with the SPFs.
Answer: B
Q39. Refer to the exhibit.
In the DWDM network, a ring topology carries multiple services between two sites. Which option describes the employed protection design?
A. Y-cable protection
B. Splitter protection
C. Client protection
D. UDLD
E. FEC protection
Answer: C
Q40. You are creating a network design that will influence the traffic path across the MPLS core on a virtual private LAN. Which parameter is included in your design to manage the traffic?
A. Deploy MPLS traffic engineering and modify the path using the preferred path.
B. Deploy MPLS traffic engineering and modify the path using auto-route, static routing, or PBR.
C. Create an MPLS traffic engineering tunnel and modify the path using a static route.
D. Create an MPLS traffic engineering tunnel and modify the path using auto-route announce.
Answer: A