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Q1. Refer to the exhibit.
The vrf MAINT has been provisioned and used by the Service Provider management network. The engineer discovers that syslog messages are not being received on the syslog server. IP reachability has been validated using ping. Which issue in the configuration must be corrected?
A. logging on must include the vrf MAINT keyword.
B. logging host must include the vrf MAINT keyword.
C. The logging facility must be configured for syslog processing.
D. The route targets that are configured do not match the route distinguisher.
Answer: B
Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2sr/12_2sra/feature/guide/srvrfslg.html#wp10 59076
Q2. Network Operations team has configured the routers with the logging buffered warnings command. Which three severity levels appear in the router syslog? (Choose three.)
A. errors
B. notifications
C. informational
D. alerts
E. debugging
F. emergencies
Answer: A,D,F
Q3. DRAG DROP
Refer to the exhibit.
PE1 and PE2 has a Layer 2 VPN over a GRE tunnel. This GRE tunnel built between P1 and P2 has LDP enabled. Consider a packet capture of the packets from CE1 and CE2 at P1 and R1 link. Drag the headers on the left and drop them on the right in the order of the encapsulation, starting from the inner header (at the top) to the outer header (at the bottom).
Answer:
Q4. An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP configuration in the network?
A. Enable LDP Fast Synch.
B. Enable IP Fast Reroute.
C. Enable the auto tunnel primary feature.
D. Enable Cisco MPLS TE Fast Reroute.
E. Enable the auto tunnel backup feature.
Answer: B
Explanation:
http://www.cisco.com/en/US/docs/ios/12_0st/12_0st10/feature/guide/fastrout.html
Q5. An engineer is tasked with configuring Lawful-Intercept on the Internet facing routers. Which two security issues must the engineer take into consideration? (Choose two)
A. Default SNMP does not include all the MIB references needed to respond to the request.
B. A new and dedicated loopback interface is required to communicate with the MD device.
C. Encryption might be required depending on the request.
D. The communication between the MD and the Content IAP happens over UDP port 161.
E. QoS and CoPP should be implemented to protect and optimize the tasks.
F. SNMFV2c should be enabled in order to provide the correct message format.
Answer: A,D
Q6. In an end-to-end Layer 2 service, which technology provides the capability to detect, verify, isolate, and report faults across a provider network?
A. carrier detect
B. UDLD
C. BFD
D. CFM
Answer: D
Q7. An engineer is troubleshooting L3VPN traffic loss over the MPLS-enabled core network when new core links were enabled. Assuming that the IGP is properly configured, which issue causes a temporary data flow blackholing when the IGP and LDP reconvenes?
A. LDP is a Layer 2 protocol forwarding label packets before the IGP reconvened.
B. IP packets are forwarded as soon as routes are learned over a new IGP adjacency before the label exchange happens over the new links
C. MP-BGP sessions between PE and RR routers require extra time to reconverge than the underlying IGP.
D. MPLS-TE tunnels without LDP adjacencies are used over the new links black-holing the traffic before the LDP label exchange is completed
Answer: B
Q8. A company is deciding between an HVR and SVR solution in order to finalize a virtualization project proposal. Which is an advantage of a HVR solution versus a SVR solution?
A. A HVR solution implements dedicated data plane resources.
B. A HVR solution implements shared control plane resources.
C. A HVR solution introduces significant contention of resources.
D. A HVR solution implements dedicated chassis resources.
Answer: A
Explanation:
Comparison of Virtualized Routing Architectures
Category Hardware-Isolated Virtual Router Software-Isolated Virtual Router
Control plane resources (CPU, memory)
Dedicated
Shared
Data plane resources (forwarding engine, queues)
Dedicated
Shared
Chassis resources (power supplies, blowers, fabric)
Shared
Shared
Management, configuration
Dedicated
Typically shared, but varies depending on degree of virtualization
Connections between virtualized routing entities
Typically external
Typically internal, but possibly external
Per-chassis scalability (routing adjacencies, prefixes)
Increased with additional logical routers
Unaffected by additional virtual routers
Reference: http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c1 1-512753_ns573_Networking_Solutions_White_Paper.html
Q9. Which are the two advantages if an ISP chooses a platform that runs Cisco IOS-XR Software instead of Cisco IOS Software? (Choose two.)
A. Cisco IOS XR Software functions as a message-passing operating system.
B. The system's scheduler is priority-based.
C. He context switching is based on Cisco Express Forwarding.
D. VoIP traffic is hardware-processed for real-time response.
E. Communication between client and server is realized by a dedicated mechanism.
Answer: A,B
Q10. Refer to the exhibit.
A service provider is using the configuration to determine traffic paths based on MPLS EXP markings. Which technology is being implemented?
A. MPLS TE FRR
B. CBTS
C. IP FRR
D. MPLS TE
E. PBTS
F. DS-TE
Answer: B
Q11. An engineer is implementing an MPLS within the core of the Service Provider network. What two components are required to build the control and data plane for MPLS Label Switched Paths? (Choose two.)
A. FIB
B. CEF
C. LDP
D. LFIB
E. OSPF
Answer: B,C
Q12. SSO was configured on a Cisco ASR 1006 Router by using two RPs. When the main RP failed, a service disruption occurred. What are two reasons that the SSO did not work? (Choose two.)
A. The standby RP has a different DRAM configuration than the primary RP.
B. HSRP and NSF are not configured.
C. The ESP that is installed in the Cisco ASR 1006 Router does not support SSO.
D. The standby RP was not ready to switch over when the primary RP failed.
E. The standby RP has a different IOS version than the primary RP.
Answer: B,E
Explanation:
http://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg /High_Availability.html
Q13. A Service Provider connects to a client site that has two CEs. These CEs have a backdoor link for backup. OSPF is used as the routing protocol in this environment. You want to ensure that client traffic prefers the service provider connections for routing instead of the secondary connection. Which option describes the default behavior and the action that accomplishes your goal?
A. The routes to the Service Provider are not preferred, due to the increased OSPF cost through the service provider network. Ensure that the cost on the links to the service provider are lower than the secondary connection.
B. The routes to the Service Provider are seen as external type 1 in the OSPF database. Configure a domain ID that is the same across all PEs, to ensure that customers see routes as intra-area.
C. The routes to the Service Provider are seen as inter-area OSPF routes through the network. Configure a sham link to create a new intra-area path across the service provider network between the PE routers that service the client.
D. The routes to the Service Provider are seen as equal and cause nondeterministic traffic patterns. Ensure that the secondary connection has a higher cost than the links to the service provider.
Answer: C
Explanation: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-sy/iro-15-sy-book/iro-sham-link.html#GUID-BEA06826-713E-4F71-B4A4-9E3DA3BAC3FC
Q14. Refer to the exhibit. The Service Provider does not have IPv6 support in the core, however it does have MPLS support. Customer requires IPv6 connectivity in all sites including Internet access. Without a requirement to create VRF, which method is preferred to support IPv6 traffic between these sites?
A. 6VPE
B. H-VPLS
C. L2TPv3
D. VPLS
E. 6CE
F. 6PE
Answer: F
Explanation:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_data_sheet09186a008 052edd3.html
Q15. DRAG DROP
Drag and drop each fast detection mechanism on the left to its definition on the right.
Answer: