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QUESTION 61
What is required on a Cisco IOS XR router to assign an interface to a VRF?
A. Assign the VRF to the interface, and then re-enable Cisco Express Forwarding on the interface.
B. Assign the VRF to the interface, and then reset the CE-to-PE routing protocol process.
C. Shut the interface, assign the VRF to the interface, and then no shut the interface.
D. Remove the IP address configuration on the interface, assign the VRF to the interface, and then
reconfigure the IP address on the interface.
Answer: D
QUESTION 62
When implementing VPLS on Cisco IOS XR routers, the VPLS PW neighbors can be statically defined under which configuration mode?
A. bridge group
B. bridge-domain
C. vfi
D. mpls ldp
E. l2transport
Answer: C
QUESTION 63
On Cisco IOS XR platforms using the EVC infrastructure, which command is used to enable a Layer 2 VPN subinterface?
A. interface gi0/0/0/0.10
switchport access vlan 10
B. interface gi0/0/0/0.10
switchport mode tunnel dot1q-tunnel
C. interface gi0/0/0/0.10
switchport mode trunk
D. interface gi0/0/0/0.10
bridge-group 10
E. interface gi0/0/0/0.10 l2transport
Answer: E
QUESTION 64
In Layer 3 MPLS VPN implementations, which protocol is used to carry the VPNv4 routes from PE to PE?
A. RSVP
B. IGP
C. MP-BGP
D. LDP
Answer: C
QUESTION 65
What happens if the destination MAC address is not present in the table for the packets that are received on one of the ACs in VPLS?
A. Packets are switched only to the PW.
B. Packets are flooded only to the other local ACs.
C. Packets are flooded on all other ACs and on all PWs that are associated with the bridge domain.
D. Packets are dropped.
Answer: C
QUESTION 66
Drag and Drop Question
Drag each item on the left to match the correct standard organization on the right.
Answer:
QUESTION 67
Drag and Drop Question
Answer:
QUESTION 68
Drag and Drop Question
Answer:
Hotspot Questions
QUESTION 69 – QUESTION 76
On PE7, which interface connects to the CE7 and what is the name of the VRF that interface is assoicated to? (Choose two.)
A. Gi0/0/0/0
B. Gi0/0/0/1
C. Gi0/0/0/2
D. Customer_1
E. Customer_A
F. Customer_CE7
Answer: BC
Explanation:
# show ip vrf interfaces
QUESTION 70
What type of routing is used between CE7 and PE7?
A. OSPF
B. BGP
C. is-is
D. RIPv2
E. Static routing
Answer: E
Explanation:
# show ip route
QUESTION 71
On PE7, how many multiprotocol IBGP routes are learned from PE8 and what is the next-hop IP address? (Choose two.)
A. 1
B. 2
C. 3
D. 10.8.1.1
E. 172.16.8.1
F. 192.168.108.81
Answer: BE
Explanation:
show ip bgp vpnv4 all — i tag field is the answer
QUESTION 72
On PE7, which three statements are correct regarding the MPLS VPN configurations used to supportthe connectivity between the CE7 and CE8 sites? (Choose three.)
A. The RD is 1:1
B. The import and export RTs are 1:1
C. Interface GiO/0/0/0 is associated to the “default” VRF
D. The network that connects PE7to CE7 is redistributed into multiprotocol IBGP
E. The multiprotocol IBGP routes learned have a BGP origin code of”i”
Answer: BCE
Explanation:
# show ip route
show ip vrf
show ip vrf detail
QUESTION 73
On PE7, what is the pseudowire ID that connects to the 10.8.1.1 neighbor?
A. 70
B. 80
C. 123
D. 0x840001
E. 0x4000080
Answer: C
Explanation:
# show vfi
QUESTION 74
Which statement is correct regarding the pseudowire on connects PE7 to the 10.8.1.1 neighbor?
A. The control word is enabled on both ends of the pseudowire
B. The MTU size is 1500 bytes on both ends of the pseudowire
C. Pseudowire backup is enabled
D. The pseudowire is in the down state
Answer: B
Explanation:
show xconnect all
show ip interface brief
show mpls l2transport vc
show cable l2-vpn xconnect mpls-vc-map
QUESTION 75
On PE7, which encapsulation method is used on the pseudowire that connects to the 10.8.1.1 neighbor?
A. MPLS
B. L2TPv3
C. IP
D. LDP
E. Ethernet
Answer: B
Explanation:
show xconnect all
check value is mpls or l2tp or Ethernet etc in segment field
QUESTION 76
On PE7, what is the PWtype on the p2p ac-pw named “testpw”?
A. MPLS
B. L2TPv3
C. PPP
D. LDP
E. Ethernet
Answer: B
Explanation:
show mpls l2transport vc testpw detail
QUESTION 77
When implementing MPLS Layer 3 VPN services, which CE-PE routing method does not require the use of the redistribute command to enable the customer routes to be advertised through the MPLS cloud between the customer sites?
A. EIGRP
B. OSPF
C. IS-IS
D. BGP
E. static routing
F. OSPF or IS-IS
Answer: D
QUESTION 78
In MPLS Layer 3 VPN implementations, what is used at the PEs to transform the customer IPv4 prefixes into a unique 96-bit prefix?
A. RT
B. RD
C. VC ID
D. PW ID
E. AS number
Answer: B
QUESTION 79
In Layer 3 MPLS VPN implementations, if some of the VPNv4 routes on one PE router do not appear on another PE router, what could be the problem?
A. RD mismatch between the PE routers
B. RT export and import configuration errors
C. RD export and import configuration errors
D. VRF name mismatch between the PE routers
Answer: B
QUESTION 80
When implementing CSC services, which two methods can be used to exchange label information between the downstream CSC customer carrier and the CSC backbone carrier? (Choose two.)
A. using MP-BGP
B. using RSVP
C. using IGP and LDP
D. using back-to-back VRF
E. using front VRF and internal VRF
Answer: AC
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