Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC. Which additional task can you perform to complete the configuration?
AConfigure static routing on the CE router.
BConfigure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE.
CChange the rd value to 65001:65001 under the VRF section of the PE router.
DConfigure OSPF on the PE router.
Refer to the exhibit. PE1 and PE2 are exchanging VPNv4 routes for CE1 and CE2, and PE3 contains the default route to the internet. If the three devices are operating normally, which two conclusions describe this configuration? (Choose two.)
AThe CE1 and CE2 VRFs can exchange routes only between their respective VRFs on PE1 and PE2.
BAll three routers must be running a distance-vector routing protocol.
CAll three routers must be running MP-BGP.
DThe CE1 and CE2 VRFs can access the default route provided by the Internet VRF.
EOnly the CE2 VRF can access the default route provided by the Internet VRF.
What do EVPN single-active and all-active have in common?
AThey are default gateway redundancy options.
BThey are multihoming mechanisms used for CE devices.
CThey are used to provide single connection from a CE device to a service provider.
DThey are both roles that a designated router can take when MPLS is used with EVPN.
Refer to the exhibit. Which statement about this configuration is true?
ARouter 1 will accept multicast routes with a route-target of 12:1.
B192.168.1.2 must be reachable by all routers participating in the mvpn-intranet MVRF.
CRouter 1 has statically defined thresholds for data MDT.
DThe MVRF must be configured on each router on the customer and service provider networks.
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Layer 2 VPNs
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Layer 3 VPNs
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Layer 3 VPNs
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Layer 3 VPNs
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Layer 3 VPNs
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VPN Architecture
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VPN Architecture
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VPN Architecture
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VPN Architecture
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An engineer is investigating an EVPN traffic flow issue. Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?
Aknown unicast from a leaf to another leaf
Bunknown unicast from a leaf to another leaf
Cmulticast from a leaf to another leaf
Dknown unicast from a root to another root
An engineer is troubleshooting an EoMPLS circuit on a Cisco IOS XR router interface that removes a VLAN from the distribution layer. Which configuration should the engineer apply in order to accomplish the task?
Ainterface GigabitEthernet 0/10.l2transport encapsulation dot1q 10 rewrite ingress tag pop 1 symmetric l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 0/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
Binterface GigabitEthernet 0/10.10 encapsulation dot1q 10 rewrite ingress tag pop 1 symmetric l2vpn xconnect group 103588 p2p 103588 interface GigabitEthernet 0/10.10 neighbor ipv4 10.10.10.2 pw-id 103588
Refer to the exhibit. Which statement describes the result of this configuration?
AR1 redistributes BGP routes into the OSPF process of VRF custabc as E1 routes.
BR1 redistributes BGP routes into the OSPF process of VRF custabc as E2 routes.
CR1 mutually redistributes routes between BGP 65001 and the OSPF process of VRF custabc.
DR1 redistributes BGP routes into the OSPF process of VRF custabc as OIA routes.
Refer to the exhibit. A network engineer has been called to configure the four PE devices in order to enable full communication among the four CE devices connected to them. While starting to configure, he experienced a connectivity issue. Which two tasks should the engineer perform in order to begin the process correctly? (Choose two.)
AConfigure PE3 to export route-targets 100:1 and 200:2.
BConfigure PE3 to import route-targets 100:1 and 200:2.
CConfigure PE4 to import route-targets 101:1 and 202:2.
DConfigure PE2 to export route-targets 300:3 and 400:4.
EConfigure PE1 to import route-targets 300:3 and 400:4.
Refer to the exhibit. While provisioning a new BGP session between the PE and CE router, you issue the as-override command. Which statement describes modification of the prefix before being sent to the CE router (10.10.10.1)?
AThe fourth AS changes, but no other autonomous systems change.
BThe first and fourth autonomous systems change.
CThe second and third autonomous systems change.
DThe first AS changes, but no other autonomous systems change.
Refer to the exhibit. What is the effect of this configuration?
AThe mroute table is cleared.
BRouter 1 accepts multicast routes with a tag of 12:1
CA Cisco MPLS TE tunnel is generated with 192.168.1.2 as the source IP address of router 1.
DAn LSP virtual interface tunnel is created.
You are troubleshooting ARP connectivity issues for an Ethernet interface on an IOS XR network that runs IS-IS. You verify that the IGP protocol is running, but an
ARP entry has not yet been created.
Which action should you take?
Adebug ping packets
Bdebug ARP
Cping the connected neighbor
Dverify the RIB table routes
While troubleshooting an AToM L2VPN service, a network consultant notices that the AC Layer 2 encapsulations are different. Which action should the consultant take in order to make the MPLS L2VPN work?
Atag-rewrite on the ingress and egress PE router
Binterworking IP configuration on the last PE router before label disposition
Cnonrouted interworking setup to properly translate only the Layer 2 information from the AC
Dinterworking IP configuration on both the AC terminations on the PEs
Which utility can you use to validate an LSP in an MPLS environment?
AuRPF
BMPLS LSP ping
Clogging
DRSVP
What is the primary function of a VRF on a router?
AIt enables the router to support multiple separate routing tables, which allows the device to handle overlapping IP addresses.
BIt enables a router to run BGP and a distance vector routing protocol at the same time, which allows it to serve as a VPN endpoint between remote sites.
CIt enables a router to configure VLANs locally, which provides segregation between networks.
DIt enables the router to provide faster switching through the network by using labels to identify the input and output interfaces for neighbor routers.
Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs? (Choose two.)
ALayer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use L2TPv3 tunneling.
BLayer 2 VPNs use AToM, but Layer 3 VPNs use MPLS/BGP.
CLayer 2 VPNs use BGP, but Layer 3 VPNs use VPLS.
DLayer 2 VPNs use L2TPv3 tunneling, but Layer 3 VPNs use GRE tunneling.
ELayer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use pseudowires to provide tunneling.
Refer to the exhibit. If the two devices are operating normally, which two conclusions can you draw from this configuration? (Choose two.)
ACE1 must use OSPF to establish a neighbor relationship with PE1.
BPE1 labels the routes it learns from CE1 with the route-target 222:2 and shares them with its VPNv4 peers.
CPE1 labels the routes it learns from CE1 with the route-target 111:1 and shares them with its VPNv4 peers.
DThe PE-CE routes between the devices are being exchanged by OSPF
ECE1 is supporting CSC.
Refer to the exhibit. An engineer is implementing an MPLS P2MP TE solution. Which type of router can serve as the midpoint router and the tailend router in this
P2MP TE network implementation?
Aheadend
Bsource
Ctransit
Dbud
While configuring the VRF Selection feature, you get an error message after typing the below statement:
Router(config)#no vrf selection source 172.16.0.0 255.255.0.0 vrf VRF1
Which action caused this message?
Athe entry of an inconsistent IP address and mask for VRF Selection
Ban attempt to configure a VRF instance on an interface that already has VRF Selection configured
Can attempt to remove a VRF Selection entry that does not exist
Dan attempt to configure a VRF Selection table that does not exist
Which two frames can be configured on an Ethernet flow point? (Choose two.)
Aof a specific VLAN
Bwith different type of service values
Cwith identical type of service value
Dwith different class of service values
Ewith no tags
In an Ethernet Virtual Circuit environment, which restriction do bridge domains have when STP is running?
AThe STP mode must be RSTP or PVST+
BBridge domains must be mapped to a different VLAN.
CThe STP mode must be MSTP
DBridge domains must belong to different MST instances.
An engineer is investigating an MPLS LDP issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?
Ashow mpls forwarding-table
Bshow mpls ldp neighbors
Cshow mpls ldp labels
Dshow mpls ldp bindings
An engineer is troubleshooting an ongoing network outage. Which command should he use that can display the live log files for a process or service running on a network device?
Atraceroute
Bshow run
Cping
Ddebug
Refer to the exhibit. Which statement about this output is true?
AThe router IP 192.168.1.2 sent an implicit null, and the output is from the penultimate LSR.
BThe adjacent router is the egress LSR and has mpls ldp explicit-null configured.
CThe adjacent LSR router configured mpls label range 0.
DThe zero in the second column is the normal behavior of an egress router LSR.
Which tool identifies the point of failure in a P2MP LSP from the ingress LSR?
