Cisco 640-878 - Building Cisco Service Provider Next-Generation Networks, Part 2 Exam
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Total 126 questions
Question #6 (Topic: )
Within an MPLS domain, which table is used by the ingress edge LSR to make forwarding
decisions when an unlabeled IP packet is received?
decisions when an unlabeled IP packet is received?
A. FIB
B. LFIB
C. LIB
D. MP-BGP
E. VRF
Answer: A
Question #7 (Topic: )
On Cisco IOS XR software, which set of commands enables OSPF area 0 on the Gi0/0/0/0
interface that has an IPv4 IP address of 192.168.1.1/24?
interface that has an IPv4 IP address of 192.168.1.1/24?
A. router ospf 1 network 192.168.1.1 0.0.0.0 area 0
B. router ospf 1 network 192.168.1.1 255.255.255.255 area 0
C. router ospf 1 area 0 interface gi0/0/0/0
D. router ospfv3 1 network 192.168.1.1 0.0.0.0 area 0
E. router ospfv3 1 network 192.168.1.1 255.255.255.255 area 0
F. router ospfv3 1 area 0 network 192.168.1.0
G. router ospfv3 1 area 0 interface gi0/0/0/0
Answer: C
Question #8 (Topic: )
Refer to the exhibit.
The access list has been configured on the Gi0/0/0/0 interface in the inbound direction.
Which two packets that are sourced from 172.16.1.1 TCP port 1050, if they are routed to
the Gi0/0/0/0 interface, will be permitted? (Choose two)
The access list has been configured on the Gi0/0/0/0 interface in the inbound direction.
Which two packets that are sourced from 172.16.1.1 TCP port 1050, if they are routed to
the Gi0/0/0/0 interface, will be permitted? (Choose two)
A. destination IP address: 10.10.192.201, destination TCP port: 80
B. destination IP address: 10.10.193.255, destination TCP port: 80
C. destination IP address: 10.10.196.1, destination TCP port: 80
D. destination IP address: 10.10.195.254, destination TCP port: 23
E. destination IP address: 10.10.193.145, destination TCP port: 23
F. destination IP address: 10.10.197.32, destination TCP port: 23
Answer: A,B
Question #9 (Topic: )
You have just enabled IS-IS on the lab testing network. You notice that IS-IS is not using
the optimal path selection based on the interface bandwidth. Currently, the IS-IS routing
process seems to be selecting the best path based on the hop count.
What configuration change can you make to cause IS-IS to select the optimal path based
on the interface bandwidth?
the optimal path selection based on the interface bandwidth. Currently, the IS-IS routing
process seems to be selecting the best path based on the hop count.
What configuration change can you make to cause IS-IS to select the optimal path based
on the interface bandwidth?
A. Enable a wide-style IS-IS metric.
B. Enable a narrow-style IS-IS metric.
C. Change the default auto-cost reference bandwidth to a higher value.
D. Change the default IS-IS metric on each of the router interfaces to better correspond to the interface bandwidth.
E. Change the interface bandwidth by using the bandwidth interface configuration mode command.
Answer: D
Question #10 (Topic: )
What platform is best placed as the edge device within the Cisco Service Provider Next
Generation Network architecture running IOS-XE?
Generation Network architecture running IOS-XE?
A. ASR 9000
B. Catalyst 6509
C. 2921 Router
D. C3560G
E. Catalyst 7609
Answer: A
