Các bạn học trong này xong ; không thi CCIE thì cũng thành chuyên gia mạng cao cấp rùi. Đây là bộ dump của passleader. Các bạn học trong này xong ; không thi CCIE thì cũng thành chuyên gia mạng cao cấp rùi. Đây là bộ dump của passleader Các bạn học trong này xong ; không thi CCIE thì cũng thành chuyên gia mạng cao cấp rùi. Đây là bộ dump của passleader Các bạn học trong này xong ; không thi CCIE thì cũng thành chuyên gia mạng cao cấp rùi. Đây là bộ dump của passleader Các bạn học trong này xong ; không thi CCIE thì cũng thành chuyên gia mạng cao cấp rùi. Đây là bộ dump của passleader
400-201 CCIE Service Provider by theWildOne for CertCollection.org Service Provider Written (400-201) October 2016 By theWildOne for certcollection.org QUESTION When will the primary processor core dump run in case of a switchover? A Never takes place B Periodically C During switchover D After switchover E Before switchover Answer: D QUESTION A company plans to secure its connectivity over its provider Which method can reduce overhead and provide encryption for Layer over the provider cloud? A MACsec B IPsec C L2VPN with 802.1X extensions D L2TPv3 Answer: A QUESTION What statement about Transit AS is true? A Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS B Traffic and prefixes originating from Source AS are carried across a Transit AS to reach their Destination AS C Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Destination AS D None of the above Answer: B QUESTION Due to recent acquisitions, a company's MPLS infrastructure is growing very quickly Concerns arise about labelling each and every IP address on the P router Which command would significantly reduce the label allocations without compromising LDP functionalities? 400-201 CCIE Service Provider by theWildOne for CertCollection.org A ip prefix-list List1 deny prefix/prefix_lengtht mpls ldp label allocate global prefix-list List1 B mpls ldp label allocate global host-routes C access-list permit subnet wildcard mpls ldp neighbor neighbor_ip labels accept D mpls ldp password required for 10 ! access-list 10 permit host_ip_1 access-list 10 permit host_ip_2 access-list 10 permit host_ip_n Answer: B QUESTION Refer to the exhibit When a traceroute is performed from a PC behind R2, the next hop on R1 for IPv4 is 10.0.1.2, and for IPv6 it is 2001:DB8:2::2 What is causing this behaviour? A GigabitEthernet2/1 has a Level 1-only adjacency This causes it to be the preferred path for the IPv6 packets B When SPF ran on R2, it calculated two equal paths to R1 It was a coincidence that than the packets choose different paths C Multitopology is enabled on R2, which causes the IPv6 packets to use a different path than the IPv4 packets D 2001:DB8:2::2 is on a Gigabit Ethernet interface Because its speed is higher than Fast Ethernet, the IS-IS metric is preferred 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: C QUESTION What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choose two.) A a configuration that is grouped by interface B a configuration that is grouped by process C one-stage configuration D a monolithic OS E a two-stage configuration Answer: BE, Process grouped configuration and 2-stage configuration (configure and commit) QUESTION An IS-IS enabled router with multiple IS-IS neighbors is required to have BFD sessions with all neighbors Which BDF mode should you use when you want to save the overhead of periodic protocol control packets? A echo B asynchronous C demand D active Answer: C, on demand saves non necessary periodic petitions QUESTION Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: QUESTION A network engineer wants to decrease the convergence time of a network that is running integrated IS-IS as an IGP, at the expense of bandwidth and CPU usage Which two configuration tasks achieve this goal? (Choose two.) A Configure the hold time to be second B Configure the hello interval to be minimal C Ensure that hello-padding is disabled D Ensure that the hello multiplier is set to E Configure the hello multiplier to be Answer: BE, explicitly set the multiplier to and the minimal hello timer QUESTION 10 Which are two major changes SyncE offers over traditional Ethernet to make it suitable for clock distribution? (Choose two.) A SyncE introduces the concept of "Boundary Clocks" and "Transparent Clocks" improving network scalability and accuracy of clock synchronization B Industry standard that guarantee interoperability, since granular details, such as specific field values are specified C A mandated clock accuracy of 4.6ppm D The ESMC protocol for clock selection, distribution, management, traceability, and failover E High-priority synchronization packets so it can continually adjust its own oscillator Answer: CD, ESMC plus great accuracy 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 11 Which two flexible service mapping features that are used on the ES40 line card can classify traffic into different service instances, in order to consume fewer VLANs? (Choose two.) A B C D E F CoS DSCP IP precedence MPLS experimental bit ToS EtherType Answer: AF, CoS and EtherType QUESTION 12 Which three statements about bidirectional PIM are true? (Choose three) A Traffic for a bidirectional group flows along the one shared tree and simultaneously utilizes multiple paths in a redundant network topology B It does not require any traffic signalling in the protocol C Membership to a bidirectional group is signalled using explicit Join messages D It maintains source-specific forwarding state E It reduces memory, bandwidth, and CPU requirements Answer: BCE, no signalling, explicit Joins, reduces memory/CPU QUESTION 13 A network architect is tasked to design and deploy multicast in a service provider core There is a requirement to have two PIM RP routers for PIM-SM distribute mode What can the network architect to satisfy this requirement? A B C D Set two RPs with same priority Set two RPs, one with high priority and the other with low priority Set one RP as the main RP and another as a backup RP Set the RP-BSR method with one high-priority RP and one low-priority RP Answer: D, BSR QUESTION 14 In relation to MPLS Multicast VPN, which three statements about multicast distribution (MDT) groups are true? (Choose three) A Default MDT groups are used for PIM control traffic, low-bandwidth sources, and 400-201 CCIE Service Provider by theWildOne for CertCollection.org B C D E flooding of sparse mode traffic MDTs are built in customer networks Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested PEs MDTs are built in provider networks The number of MDTs depends on PIM modes of MDT groups Answer: CDE, built in provider networks, used to reduce replication, number depends on PIM modes QUESTION 15 What is the role of Forwarding Equivalence Class (FEC) in MPLS? A FEC determines how to establish an LSP path B FEC determines how IP packets are forwarded in MPLS LSP C FEC determines how MPLS labels are stacked in LSP D FEC determines how a group of IP packets are mapped to an LSP Answer: D, how IP packets are mapped to LSP QUESTION 16 In optical channel transport unit overhead (OTU OH), what are general communication channels and (GCC1/GCC2) used for? A For trail trace identification B As the backward defect indicator C To transmit information between OTU termination points D To extend command and management functions over several frames E General communication channels and (GCC1/GCC2) not belong to OTU OH Answer: E QUESTION 17 Which option describes the incorrect usage of the Label Distribution method? A MP-BGP is used for label distribution for VPN customer routes B LDP is primarily used in internal networks of MPLS-VPN providers C MP-BGP is used for label distribution in MPLS Traffic Engineered networks D Directed LDP is used for label distribution in L2-VPN Attachment Circuits Answer: C 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 18 RIPv2 differs from RIPv1 in which three things? (Choose three) A It uses multicast address 224.0.0.10, instead of broadcast B It uses multicast address 224.0.0.9, instead of broadcast C It can use either multicast or broadcast addresses, instead of just broadcast D It sends incremental updates, instead of periodic updates E It is classless, instead of classful F It supports authentication, and RIPv1 does not Answer: BEF QUESTION 19 Which option propagates SRLG membership information to the network? A BGP attribute B IGP extension C RSVP extension D LDP extension E PIM extension Answer: B QUESTION 20 Which are the three benefits of using the Yang model? (Choose three.) A Reduce lab footprint B Improve access to resources C Support interoperability that provides a standard way to model management data D Support simplified network management applications E Provide a scale virtual lab environment F Support programmatic interfaces Answer: CDF QUESTION 21 What IOS commands display MPLS label mapping on an LSR? A Show mpls ldp parameters B Show mpls ldp bindings C Show mpls forwading-table D Show mpls ldp discovery E Show mpls ldp neighbor detail Answer: B 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 22 Answer: QUESTION 23 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 not match the route distinguisher Answer: B 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 24 Which are the three header fields that affect how Equal-Cost Multipath hashes traffic flow into interface groups? (Choose three.) A source MAC address B source port C source IP address D destination IP address E IP protocol ID F Destination MAC address Answer: BCD QUESTION 25 An R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two exit points: through R2 and R3 routers Which two options must be configured on the R1 router to achieve this goal? (Choose two.) A The BGP maximum path feature must be configured on R1 B The BGP PIC core must be enabled on R1 C Weight, local-preference, MED, as-path length, origin, and the BGP next-hop IGP cost must be the same for the R2 and R3 iBGP updates to R1 D The BGP Link Bandwidth feature must be applied on R1 E BGP extended community exchange must be enabled between iBGP neighbors Answer: AC, Maximum Path ON and equal parameters QUESTION 26 A company is deciding between an HVR and SVR solution in order to finalize a virtualization project proposal Which is an advantage of HVR 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 QUESTION 27 Which three of these are optical channel data unit (ODU) overhead fields? (Choose three) A general communication channel (GCC0) B section monitoring C reserved (RES) D General communication channels and (GCC1 GCC2) E Tandem connection monitoring activation deactivation (TCM ACT) Answer: CDE – RES, GCC1 and 2, TCM-ACT 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 28 Which three modes are the operating of HDLC? (Choose three) A asynchronous balanced mode (ABM) B normal response mode (NRM) C normal peer mode (NPM) D asynchronous client mode (ACM) E asynchronous response mode (ARM) Answer: ABE QUESTION 29 BGP best route selection process is based on what? A path attributes B lowest cost C highest bandwidth D lowest delay E lowest hop-count Answer: A QUESTION 30 Refer to the exhibit In the short-pipe QoS mode, this customer has QoS control for which two links? (Choose two.) A a B c C d D b E e Answer: AE 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 403 Refer to the Exhibit The topology is an inter-AS VPN that is using Option B Given the traceroute output from CE1 to CE2, which three options are VPN labels? (Choose Three) A Label 17 for LSP B Label 21 for LSP C Label 24 for LSP D Label 17 for LSP E Label 20 for LSP F Label 21 for LSP G Label 17 for LSP H Label 20 for LSP Answer: BFG, Alternative 24, 21 20 QUESTION 404 REP has been deployed in a segment A network operations engineer notices that a segment port does not become operational What is the root cause of this issue? A More than one neighbor has the same segment ID B A neighbor is using a different port ID C A local port is in alternate port state D A neighbor port is in blocked state Answer: A, more neighbors with same segment ID QUESTION 405 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 The 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 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: AB QUESTION 406 Refer to the exhibit The P1 router is elected as the DIS on the broadcast link Assuming that all the configurations are applied correctly, how many routers will establish IS-IS neighborship with P1 router on this broadcast link? A B C D Answer: C QUESTION 407 Refer to the exhibit ABC and XY2 MPLS VPN customers require Internet access An ISP engineer deployed the solution on PE1 device Which statement is true? A Only CE-XYZ will have connectivity B Neither CE will have connectivity, as IAR does not have route back to the subnet used on NAT configuration C Both CEs will have connectivity D Only CE-ABC will have connectivity E Neither CE will have connectivity, as both CEs are using the same subnet used on NAT configuration 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: C QUESTION 408 Refer to the following CE_RP# Interface Ethernet 0/0 Ip address 1.1.5.4 255.255.255.0 Ip pim sparse-dense-mode Ip pim accept-rp 10.2.2.2 Ip pim send-rp-announce Ethernet0/0 score 15 Ip pim send-rp-discovery scope 15 Access-list permit 224.0.0.0.255.255.255 CE_RP# show ip pim rp mapping PIM Group-to-RP Mappings This system is an RP (Auto-RP) This system is an RP-mapping agent Group (s) 224.0.0.0/4 RP 1.1.5.4 (?), v2v1 Info source: 1.1.5.4 (?), via Auto-RP Uptime: 01:00:48 expires 00:03:03 Accesslist permit 224.0.0.0.0.255.255.255 CE_RP# show ip pim rp mapping PIM Group-to-RP Mappings This system is an RP (Auto-RP) This system is an RP-mapping agent Group (s) 224.0.0.0/4 RP 1.1.5.4 (?), v2v1 Info source: 1.1.5.4 (?), via Auto-RP Uptime: 01:00:48, expires: 00:02:07 CE_RP is configured as a rendezvous point in an IPv4 multicast domain This router receives this syslog message 00:55:15: %PIM-6-INVALID_RP_JOIN:Received (*,224.1.1.1) Join from 1.1.6.2 for invalid RP 1.1.5.4 00:55:15: %PIM-6-INVALID_RP_JOIN:Received (*^24.1.1.1) Join from 1.1.6.2 for invalid RP 1.1.5.4 What is the root cause of this issue? A A PIM neighbor is sending a PIMv6 message to CE_RP, however IPv6 multicast is not enabled on this router B The multicast application from the 1.1.5.4 source is using a reserved IPv4 multicast address C Downstream PIM router sent a join message, which CE_RP doesn’t want to accept D CE_RP is not configured to be an RP for multicast group 224.1.1 Lit should not have received this RP-Join packet Answer: C QUESTION 409 A service provider engineering team must design a solution that supports end-to-end LSPs for multiple IGP domains within different AS numbers According to RFC 3108, which solution achieves this goal? A LDP and BGP B BGP and send-label C RSVP and IS-IS or OSPF D RSVP and BGP E mLDP4 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: B QUESTION 410 Which standard provides insurance that the new hardware rollout plan meets certain environment design guidelines before deployment? A NAS B eTOM C ITIL@ D NEBS E COBIT Answer: D QUESTION 411 A Service provider NOC engineer received numerous support tickets from their VPN customers These customers are reporting packet loss between two PE routers The NOC engineer created a VRF TEMP to run tests between these two PE routers, and no errors were reported ECMP links are use between P and PE routers Which test can quickly identify the core link that is causing the problems? A A vrf traceroute between customer's CE and service provider's remote PE B An mpls traceroute with multipath option between the PE's loopbacks C An extend ping with sweep option between the PE's loopbacks D An mpls ping with sweep option between the PE's loopbacks E A vrf ping between customer's CE router and service provider's remote PE router Answer: B, multipath traceroute between PE loopbacks QUESTION 412 Drag and Drop Question: Drag and drop the Ethernet Virtual Circuit characteristics on the left onto the correct classification according to the current Metro Ethernet forum term on the right Not all options are used 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: QUESTION 413 A service provider NOC engineer received numerous support tickets from their VPN Customer are connected to two PE routers The NOC Engineer created a VRF TEMP to run tests between these PEs routers and no error were received ECMP is between P and PE routers. Which test Can quickly identify the CORE Link causing the problem? A An MPLS traceroute with multipath option between the PEs loopback B And extended ping with multipath option between PEs loopback C A vrf Ping between customer CE Router and SP remote PE router D Vrf trace route between customer CE router and SP remote PE router E An MPLS ping with sweep option between the PE loopback Answer: A QUESTION 414 Refer to the exhibit 400-201 CCIE Service Provider by theWildOne for CertCollection.org New Questions (not in the original 414Q PL) QUESTION 414 Which protocol function as transfer protocol between Cisco open SDN controller and forwarding device: A PCEP B BGP LS C openflow D ospf or isis QUESTION 415 A postman script to poll object was working, but suddenly stop: A APIC license expired B the object data being returned as JSON instead XML C a man in the middle attack D authentication token expired Answer: B, the object data being returned as JSON instead XML QUESTION 416 In a network function virtualization reference architecture which statement about virtualized network function: (choose two) A VNF functionality include control and management of compute, storage and network resource ==> VIM B one VNF can be deployed over multiple VMs C VNF is virtualization of legacy network function D VNF is totally of hardware and software component that build up the NFV environment ==> NFV E VNF perform orchestration and lifecycle management of software resource ==> NFV Orchestrator (NFVO) Answer: BC QUESTION 417 Which Cisco IOS XR configuration creates ad L2VPN using BGP as auto-discovery and LDP as signalling? Hint: Look for BGP as auto-discovery and LDP as signalling in the answer autodiscovery bgp signalling-protocol ldp 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 418 In IOT Infrastructure, which two option considered Low-power and Lossy Networks (Choose 2) A Routers B Sensors C Controllers D Nodes E Access points Answer: BC QUESTION 419 Which security mechanism could be used to secure CoAP (choose answers) A DTLS B MACsec C IPsec D TLS Answer: DTLS QUESTION 420 Which technology provides fast forwarding path failure detection times for all media type A IP Dampening B UDLD C BFD D NSF E MPLS TE Answer: C, BFD QUESTION 421 Which open source cloud computing platform uses the Neutron project as Network: A OpenStack B opendaylight C Ansible D Cisco UCS Director Answer: A 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 422 Which controller uses policy-based application profile? A cisco open SDN controller B openflow control C cisco ucs director D openstack E cisco APIC Answer: E QUESTION 423 Which feature allows an MPLS TE Tunnel to be used by an IGP at the headend of the tunnel: A MPLS TE link management B MPLS TE auto-route announce C generalized MPLS D MPLS TE Forwarding Adjacency E Differentiated Service TE Answer: B, MPLS TE auto-route announce QUESTION 424 Which option describes a service/network (forget between network or service) function as defined in SDN? A a virtual server B a virtual device C a virtual chain D a virtual network function Answer: D QUESTION 425 Which solution meets these requirements: - prevent multicast transit - reduce overall processing of pim controll - protect against multicast spoofing A PIM allow RP B explicit tracking of receivers C multicast stub routing D source specific multicast Answer: D, SSM 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 426 Which two components are shared among SDR: A forwarding engine B fans C memory D cpu E fabric Answer: BE QUESTION 427 Which statement about the Cisco Intercloud Fabric is true? A it provides a L2 extension of an enterprise network into the public cloud B it dynamically establishes adjacencies between cisco intercloud Switch VMs C it provides a virtual storage space for VMs inside of public cloud D it facilitates encrypted communications between VMs inside private cloud Answer: A QUESTION 428 A service provider has requirement to prevent spoofing attack by verify the reachability source address in a packet that forwarded into network, which method should be used: A CoPP B iACL C uRPF D RTBH Answer: D QUESTION 429 A Service provider is working to develop evolving security toolset in regard to increasing amount of attack in which scenario of Backscatter Traceback solution recommend: A Network attack tcp/udp scan B ping of death C rogue dns/dhcp server D DDoS Answer: D QUESTION 430 Which option is the cisco cloud management platform that is designed for enterprise and public sec hybrid cloud: A cisco intelligent automation for cloud 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: A QUESTION 431 Which description of Russian Dolls Model is true: B RDM provide bandwidth sharing C RDM quarantine a predefined amount of bandwidth D RDM can be used simultaneously to ensure bandwidth efficiency E RDM matches simple bandwidth control policies Answer: D QUESTION 432 Which cisco IOS XR feature define route strategies: A RPL policy Answer: A QUESTION 433 Question about IaaS Answer: Operating System and Running Apps QUESTION 434 What is the main goal of incident management? B ensure the same incident doesn't recur C enable the customer to report issue D restore a normal service operation as quick as possible E create possible workaround for issue that might recur Answer: B ensure the same incident doesn't recur QUESTION 434 In the MvPN profile (rosen GRE with BGP-AD), which information is included: A RD S,G B type-1 source PE global ID C not applicable D type-2 root address vpn-id Answer: 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 435 Question about in SDN environment, which two steps take place in BGP-LS: A bgp download the received bgp-ls data to the igp B enable access to the adj rib BGP raw format C advertise bgp-ls nlri to topology D igp is redistributed into BGP-LS E IGP is use BGP-ls data from remote peers Answer: QUESTION 436 Drag and Drop DND Multicast VPN, the steps on the left for how the P2MP TE traffic is forwarded across the network The correct steps are: The packet is encapsulated with a unique MPLS label associated the P2MP TE tunnel The label is switched in the P2MP Tree The packet is replicated at branch and bud nodes along the P2MP tree The label is removed and forwarded to the ip multicast tree toward the endpoint QUESTION 437 Drag and Drop DND L2VPN steps from inner header to outer header Similar with PL, but in the PL was MPLS VPN instead of VC label The correct order is: - GRE - MPLS transport label - VC label - Ethernet transport frame - CE IPv4 header QUESTION 438 Drag and Drop DND OSPF PE CE components Left: - sham-link - domain ID - route tag - down-bit Right - 32 bit value encoding the origin of the route and supported as extended community in MP-BGP - LSA option bit set by the PE downward the CE for type and LSAs - virtual link over ospf super-backbone - LSA option bit set by the PR downward the CE for type LSAs 400-201 CCIE Service Provider by theWildOne for CertCollection.org Correct order: sham-link=> virtual link over ospf super-backbone domain ID=> 32 bit value encoding the origin of the route and supported as extended community in MP-BGP route tag => LSA option bit set by the PE downward the CE for type and LSAs down-bit => LSA option bit set by the PR downward the CE for type LSAs QUESTION 439 What multicast protocols require RP? (Choose two) A SM B DM C SSM D BiDir E anything like mLDP Answer: SM, BiDir QUESTION 440 What is a paradigm of segment routing? Answer: source routing [just remember this option, as it’s the correct answer] QUESTION 441 Which are three characteristics of Cisco Embedded Packet Capture? A It has the ability to preserve Ethernet encapsulation information when exported B It has the ability to capture packets in the Cisco Express Forwarding path C It uses EXEC-level commands to start and stop the capture D The capture can be performed only on physical interfaces and sub-interfaces E It has the facility to export the packet capture in pcap format F The Cisco IOS output is displayed in a human-readable format Answer: BCE QUESTION 442 LDP uses which two components to discover neighbors on a network segment (choose two) A 224.0.0.1 multicast address B 224.0.0.14 multicast address C 711 udp port D 224.0.0.2 multicast address E 646 tcp port F 711 tcp port G 646 udp port Answer: DG, 224.0.0.2 port 646 UDP 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 443 Which option is the cisco cloud management platform that is designed for enterprise and public sector hybrid cloud: A cisco intelligent automation for cloud B cisco ucs director C cisco cloud orchestrator D cisco intercloud fabric Answer: D QUESTION 444 Drag and Drop DND QOS Characteristics on the left onto its correct QOS Mechanism on the right : Left: - replenishes token bucket continuously - replenishes token bucket on intervals - may increase latency of traffic - can be implemented inbound on interfaces - must be implemented on CEs when a service provider rate limits a circuit - does not support overhead accounting Right: - Policing (3 places to drop) - Shaping (3 places to drop) Answer: * Policing - replenishes token bucket continuously - can be implemented inbound on interfaces - does not support overhead accounting * Shaping - replenishes token bucket on intervals - must be implemented on CEs when a service provider rate limits a circuit - may increase latency of traffic QUESTION 445 Drag and Drop signals downstream the tunnel is being removed ==> RSVP PATHTEAR confirms that the resources are available long the LSP ==> RSVP RESV signals upstream that resources are not available ==> RSVP RESVERR is used to signal the future TE LSP at each MPLS node ==> RSVP PATH 400-201 CCIE Service Provider by theWildOne for CertCollection.org QUESTION 446 Which feature allows an MPLS TE Tunnel to be used by an IGP at the headend of the tunnel: A MPLS TE link management B MPLS TE autoroute announce C generalized MPLS D MPLS TE Forwarding Adjacency E Differentiated Service TE Answer: B QUESTION 447 Which statement about LDP session protection and ldp-igp sync is true: A both LDP feature can't be used at the same time in MPLS LDP network B ldp-igp sync re-exchanges label info when a down-up event occurs, keep the adjacency info in down-up event C ldp section protection sync re-exchanges label info when a down-up event occurs, keep the adjacency info in down-up event D both ldp feature must be used together to increase fast convergence on mpls ldp network Answer: D QUESTION 448 Which option describes a service function as defined in SDN? A a virtual server B a virtual device C a virtual chain D a virtual network function Answer: D virtual network function (VNF) QUESTION 449 Refer to exhibit Customer reported internet stop working for a few times, and it occurred when ASBR1 router reloaded and ospf convergence faster than BGP which command will solve the issue? A graceful restart B bfd min_rx 100 max rx 100 multiplier C max-metric router lsa on startup 300 D set overload bit on startup wait for bgp 400-201 CCIE Service Provider by theWildOne for CertCollection.org Answer: C, max-metric router lsa on startup 300 QUESTION 450 Which two characteristics of GMPLS are true? (Choose two) A LMP can be used by the natively photonic switches network element type only B The LSP is established directionally through only one signaling message C The control channel can terminate on different node types that bearer channels span D Two light paths traversing the same fiber link can share the same wavelength on that link E OXCs manipulate wavelength that bear the label implicitly Answer: AE QUESTION 452 Drag and Drop DND Multicast VPN, Arrange the steps on the left in order of how the P2MP TE traffic is forwarded across the network: - The packet is replicated at branch and nodes along the P2MP tree - The packet is encapsulated with a unique MPLS label associated the P2MP TE tunnel - At each branch, all labels are removed and a new label stack is imposed before the replication - The label is removed at penultimate hop popping and multicast traffic is sent to the tailend - The label is removed and forwarded to the ip multicast tree toward the endpoint - The label is switched in the P2MP Tree Answer: Forwarding order is The packet is encapsulated with a unique MPLS label associated the P2MP TE tunnel The label is switched in the P2MP Tree At each branch, all labels are removed and new label stack is imposed before replication The packet is replicated at branch and nodes along the P2MP tree The label is removed at penultimate hop and multicast traffic is sent to the tail-end The label is removed and forwarded to the ip multicast tree toward the endpoint QUESTION 453 What are the improvements in SNMPv3 regarding security? ... establish an LSP path B FEC determines how IP packets are forwarded in MPLS LSP C FEC determines how MPLS labels are stacked in LSP D FEC determines how a group of IP packets are mapped to an LSP Answer:... (Choose three.) A The LSPs are built from tailend to headend B The LSPs are built from headend to tailend C It supports only P2MP LSPs D It supports both P2MP and MP2MP LSPs E Signalling is periodic... corresponding SMU E SMUs are release-specific If an issue affects multiple platforms or releases, an SMU is built separately for each release and each platform Answer: E, release-specific 400-201 CCIE Service Provider by theWildOne for CertCollection.org