Cisco 640-878 Dumps For Preparation

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Question No. 1

Which two statements about the BGP weight attribute on Cisco routers are true? (Choose two.)

Answer: B, C

Question No. 2

Which port is the blocking port for vlan 70?

Answer: F

S78 port Fa0/23

Use the “show spanning-tree mst” command on each switch to find the port status that shows BLK for VLAN 70.

Question No. 3

Refer to the configuration snippet below. A new IOS-XR router is being added to the network. What command is required to enable the Label Distribution Protocol on interface GigabitEthernet 0/3/0/0?


mpls ldp


Answer: B

Question No. 4

Which three are examples of a link-state routing protocols and static routing? (Choose three.)

Answer: C, D, E

Question No. 5

Refer to the configuration output below. OSPFv2 is already configured on a customer router and the customer is requesting that OSPFv3 be added. What configuration is needed in order to add OSPFv3 to the fastethernet0/0 interface?


ipv6 router ospf 1


area 2 nssa

interface fastethernet0/0

ip address 2001:DB8:0:7::

Answer: B

Question No. 6

Which three are common ISP access network technologies? (Choose three.)

Answer: A, B, E

Question No. 7

Refer to the exhibit.

A network engineer implemented these configurations. However, Intermediate System-to-Intermediate System (IS-IS) neighbors are unable to establish. What is the reason for this error?

Answer: B

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