Q1. You are designing a NAC OOB Layer 3 Real-IP Gateway deployment for a customer. Which VLAN must be trunked back to the Clean Access Server from the access switch?
A. untrusted VLAN
B. user VLAN
C. management VLAN
D. authentication VLAN
Answer: A
Q2. You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network. If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?
A. map DSCP bits into the Exp field
B. map IP precedence bits into the DSCP field
C. map flow-label bits into the Exp field
D. map IP CoS bits into the IP Precedence field
E. map IP ToS bits into the Exp field
Answer: A
Q3. There is an MPLS-enabled link constantly flapping on an MPLS VPN network. Given that the network runs OSPF as the IGP protocol, which design mechanism will stabilize the network and avoid constant reconvergences?
A. BFD
B. IP Event Dampening
C. OSPF fast hellos
D. partial SPF
Answer: B
Q4. 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
Q5. 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
Q6. Which of the following design options meet the requirement to provide IPv6 interdomain multicast?
A. MSDP
B. PIM SSM
C. Auto-RP
D. PIM dense mode
Answer: B
Q7. A company is planning to deploy high-availability cluster support for their servers in a collapsed core data center design. Which issue should be a concern with this design?
A. NIC teaming
B. MAC address aging
C. Layer 3 domain sizing
D. Layer 2 domain sizing
Answer: D
Q8. 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
Q9. You are designing a network using multipoint GRE tunnels and need to be able to detect when connectivity between the GRE tunnel endpoints is broken. Which statement is true about configuring keepalives for multipoint GRE tunnels?
A. The keepalive timer values on the routers must have the same value.
B. Both routers must support GRE tunnel keepalives.
C. No configuration is required to detect when connectivity is broken between the GRE tunnel endpoints.
D. GRE tunnel keepalives will not detect when connectivity is broken between the GRE tunnel endpoints.
Answer: D
Q10. 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