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Q1. Which is the main characteristic of LTE architecture compared to other mobile architectures? A. Provides supports to deploy Layer 3 MPLS VPN model, where other mobile architectures do not support. B. Offers node redundancy with the static route configured on the IP NodeB using the HSRP/VRRP virtual ip address. C. Provides a simpler, less hierarchical model with the capability of simplistically distributing…
Q1. 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…
Q1. In a frame, the MPLS label is imposed where? A. Before the layer 2 header B. Within the Layer 3 header C. After the Layer3 header and before Layer2 header D. After the Layer2 header and before Layer3 header View AnswerAnswer: D Q2. Refer to the exhibit. Which MPLS TE component keeps track of the flooding and admission control? A. MPLS TE priorities B. RSVP C. link attributes D. link…
Q1. Refer the exhibit. Two Autonomous Systems are enabled to support multicast. An engineer wants to set up configuration so that a multicast client at AS 100 can receive multicast traffic from the M-Server at AS 200. However, the RP announcements must be limited within each autonomous system site. Which Cisco IOS configuration achieves this goal? A. On both ASBRs Eth0/0…
Q1. 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 View AnswerAnswer: A,D,F Q2. 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 View…
Q1. An engineer is troubleshooting Precision Time Protocol on Cisco ASR 9000 router and noticed the protocol is running in a Multicast mode. Which two results regarding the messages can the engineer expect? (Choose two) A. IPTP messages that use unicast messages and those that use multicast messages must be specified. B. Announce and Sync messages are sent as multicast messages. C. Signaling.…
Q1. A service provider is using multicast flows to provide streaming video content to its customers. Video streams are sometimes interrupted, and network instability is determined to be the cause. Which action should the service provider take to decrease the burden on the router resources in an unstable unicast routing environment? A. Reduce the volume of query messages. B. Tune the RPF…
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…
Q1. Which are the three characteristics of SDR? (Choose three) A. The logical router can span across chassis. B. Each logical router has a distinct fabric and system controller module. C. Owner SDR can be reloaded, without affecting all non-SDRs. D. The logical router has dedicated route processor. E. The logical router can share line cards. F. The fabric and system controller module are shared by…
Q1. Refer the exhibit. Two Autonomous Systems are enabled to support multicast. An engineer wants to set up configuration so that a multicast client at AS 100 can receive multicast traffic from the M-Server at AS 200. However, the RP announcements must be limited within each autonomous system site. Which Cisco IOS configuration achieves this goal? A. On both ASBRs Eth0/0…
Q1. QoS is applied on an outgoing interface as shown below: What will the QoS result be for egress traffic with an average queue depth of 40 that is marked as DSCP AF32? A. Traffic will be dropped with a random rate less than the one defined by MPD. B. All traffic will be tail dropped. C. Traffic will be dropped with a rate…
Q1. Refer to the exhibit. PIM sparse mode is implemented in the network RPF succeeds under which condition? A. The RPF check succeeds for the next hop whose router ID is the highest. B. The RPF check succeeds for the highest DR priority for the PIM router. C. The RPF check succeeds for both PIM neighbors, and traffic load-balances across both neighbors. D. The RPF…
Q1. Refer to the exhibit. A service provider is running MPLS TE across its network. IS-IS is deployed as the IGP for the ISP network. The MPLS TE tunnel 0 configured on PE2 is seen in an operational down state. PE2 is a level-1 router and the destination 192.168.1.1 is located in the IS-IS level-2 area. Which action is required to…
Q1. 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…
Q1. A Service Provider is designing control policies at the customer edge of the network, in order to prevent usage that exceeds the contracted terms. A new client that is contracted for only 2 Gbps is connecting to the Service Provider edge with a 10 Gbps interface. Which two QoS strategies meet the design goal? (Choose two.) A. On the service…
Q1. Refer to the exhibit. IS-IS configuration has been deployed using the default IS-IS metric value and default IS-IS metric-style. The SP decides to implement MPLS TE in all routers, except R5. In order to maintain IS-IS adjacency between R3 and R5 without impacting reachability, which command should be configured on R3 router under the IS-IS process? A. metric-style narrow B. metric-style wide C.…
Q1. What are the four key design requirements for mobile IP backhaul? (Choose four.) A. X2 interface turning point B. bandwidth C. Layer 2 Tunneling D. native IPv6 support E. DiffServQoS F. MPLS-enabled interface G. network timing distribution and recovery H. mandatory Layer 3 access up to a cell site View AnswerAnswer: C,D,G,H Explanation: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_14-3/143_backhaul.html Q2. Refer to the exhibit. R3 cannot install a route to R1-R2 subnet 2001:1:155:12::/64. Which action…
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…
Q1. Which technology is a forwarding decision point in a PE router that provides flexibility to make many Layer 2 flow decisions within an interface? A. local connect B. AToM C. VPLS D. pseudowire E. EFP View AnswerAnswer: E Q2. MPLS Service Providers use Route Distinguishers and Route Targets as methods to control routing for customer VRFs. Which two statements are true about Route Distinguishers and Route…
Q1. Refer to the exhibit. Why is RC unable to receive prefix 1.1.1.1/32? A. On RB. neighbor 10.10.12.1 send-community is not configured. B. On RA, ip bgp-community new-format is not configured. C. On RB. neighbor 10.10.23.3 send-community is not configured. D. On RA, neighbor 10.10.12.2 send-community is not configured. E. On RC. ip bgp-community new-format is not configured. F. On RB, ip bgp-community new-format is not configured G.…
Q1. A Service Provider is offering VoIP services and a service level agreement to customers. Which configuration provides validation to customers that the service level agreement has been honored? A. ip sla 999 udp-jitter 209.165.200.225 1000 codec g729a tos 160 ip sla schedule 999 life forever start-time now B. ip sla 999 icmp-jitter 209.165.200.225 tos 160 ip sla schedule 999 life forever…
Q1. In an MPLS VPN environment, the QoS marking over the MPLS backbone must be different from the one that is received from the customer. The forwarding on the egress PE is based on the marking that is set by the ingress PE. Which null label and QoS mode can achieve this? A. MPLS explicit null with pipe mode B. MPLS implicit…
Q1. What is the minimum hardware configuration of the multishelf Cisco CRS-1 system? A. One route processor (RP) card and one modular services card (MSC) B. One distributed route processor (DRP) and one S13 fabric card (SFC) C. One line card chassis (LCC) and one fabric card chassis (FCC) D. One route processor (RP) and one fabric card chassis (FCC) E. One line card chassis…
Q1. A Service Provider provides a Layer 2 connection that is based on IEEE 802.1ad. When the customer tries to access a switch at the other side of the link by using SSH, the connection fails. What is the cause of this failure? A. The Service Provider omitted the command l2protocol-tunnel stp. B. The Service Provider omitted the command l2protocol-tunnel vtp. C. The…
Q1. Refer to the exhibit. IS-IS configuration has been deployed using the default IS-IS metric value and default IS-IS metric-style. The SP decides to implement MPLS TE in all routers, except R5. In order to maintain IS-IS adjacency between R3 and R5 without impacting reachability, which command should be configured on R3 router under the IS-IS process? A. metric-style narrow B. metric-style wide C.…