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Q1. Network designers plan to interconnect two geographically separated data centers using an Ethernet-over-MPLS pseudowire. Within that design, the link between the sites is stable, there are no apparent loops in the topology, and the root bridges for the respective VLANs are stable and unchanging. What additional aspect of the design should be adjusted to mitigate the chance of connectivity issues to the peer data center when the connection takes place?
A. Enable 802.1d on one data center, and 802.1w on the other.
B. Ensure that the spanning tree diameter for one or more VLANs is not too large.
C. Enable UDLD on the link between the data centers.
D. Enable root guard on the link between the data centers.
Answer: B
Q2. A company wants to use SSM as the multicast routing protocol inside its network. Some of its multicast applications do not support IGMPv3. In which two ways can the mapping be done when these applications send IGMPv2 join messages? (Choose two.)
A. The Layer 2 switches can send a request to a DNS server.
B. The Layer 3 multicast routers can send a request to a DNS server.
C. The mapping can be done statically at the Layer 2 switches.
D. The mapping can be done statically at the Layer 3 multicast routers.
E. The Layer 2 switches can transform the IGMPv2 join to an IGMPv3lite join.
F. The Layer 3 multicast routers can transform the IGMPv2 join to an IGMPv3lite join.
Answer: BD
Q3. While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during TCN in a Layer 2 switched network with many VLANs?
A. STP
B. MST
C. PVRSTP
D. PVSTP+
Answer: D
Q4. Which option is a BFD design consideration?
A. BFD should not be used with RSVP-TE backup tunnels.
B. BFD echo mode may reduce convergence time.
C. BFD does not support sessions over MPLS LSPs.
D. BFD is supported on indirectly connected peers.
Answer: B
Q5. Your design plan includes mutual redistribution of two OSPF networks at multiple locations, with connectivity to all locations in both networks. How is this accomplished without creating routing loops?
A. Use route maps on the ASBRs to allow only internal routes to be redistributed.
B. Use route maps on the ASBRs to allow internal and external routes to be redistributed.
C. Use route maps on the ASBRs to set tags for redistributed routes.
D. Use route maps on the ASBRs to filter routes with tags so they are not redistributed.
Answer: D
Q6. A customer is using a service provider to provide a WAN backbone for a 30-site network. In establishing the network, the customer must work within these constraints:
The customer has a self-managed MPLS backbone.
The VPLS WAN backbone of the service provider does not support PIM snooping.
Multicast VPN must be used for multicast support inside some VRFs.
What can the customer do so that multicast traffic is NOT flooded to all sites?
A. Configure static GRE tunnels and run the MPLS and multicast VPN inside these GRE tunnels.
B. Use Label Switched Multicast for the multicast transport.
C. Use PIM-SSM as the multicast routing protocol with IETF Rosen Draft multicast VPN.
D. Configure a static mapping between multicast addresses and MAC addresses.
E. Use GET VPN to encrypt the multicast packets inside the WAN.
Answer: A
Q7. Refer to the exhibit.
In this design, which technology would provide for the best use of resources to provide end-to-end Layer 2 connectivity?
A. MSTP
B. PAgP
C. Multichassis EtherChannel
D. LACP
Answer: C
Q8. You are evaluating convergence characteristics of various interior gateway protocols for a new network design. Which technology allows link-state routing protocols to calculate paths to destination prefixes that are functionally similar to feasible successors in Enhanced Interior Gateway Routing Protocol?
A. Incremental Shortest Path First
B. Cisco Multiprotocol Label Switching Traffic Engineering Fast Reroute
C. Loop-Free Alternate Fast Reroute
D. partial route calculation
E. Fast-Flooding
Answer: C
Q9. A large service provider offers VoIP and Video services to business customers. Which three areas should the service provider monitor related to these services? (Choose three.)
A. bandwidth utilization
B. service response time
C. packet loss
D. jitter
E. latency
F. availability
Answer: CDE
Q10. Which two options are characteristics of firewall transparent mode operations in a firewall solution design? (Choose two.)
A. The firewall acts like a router hop in the network.
B. OSPF adjacencies can be established through the firewall.
C. Changes in the existing IP addressing and subnets are required.
D. Multicast traffic can traverse the firewall.
E. The firewall can participate actively on spanning tree.
Answer: BD
Q11. A network design shows two routers directly connected to an Ethernet switch using optical connections. There is an OSPF adjacency between the routers. In this design, which solution will ensure that interface down detection is reported as quickly as possible to the IGP?
A. optimized OSPF SPF timers
B. Bidirectional Forwarding Detection
C. automatic protection switching
D. optimized OSPF LSA timers
E. Ethernet OAM CFM monitoring
Answer: B
Q12. Refer to the exhibit.
How would you adjust the design to improve convergence on the network?
A. Add an intra-POP link between routers 1A and 1B, and enable IP LFA FRR.
B. Use an IP SLA between the end stations to detect path failures.
C. Enable SSO-NSF on routers 1A and 1B.
D. Use BGP to connect the sites over the WAN.
Answer: A
Q13. Two medium-sized companies recently merged and would like to share their two campus buildings as soon as possible. Employees should be able to sit and work in either building. If the IP addresses in the networks overlap, which virtualization technology could be deployed quickly to achieve the business objective?
A. MPLS-VPN
B. VRF-LITE
C. EoMPLS
D. L2TPv3
Answer: B
Q14. 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: C
Q15. You are designing an IPv4 any source multicast redundancy solution. Which technology ensures the quickest RP convergence?
A. Auto-RP
B. Embedded RP
C. bootstrap router
D. MSDP anycast RP
Answer: D