Cisco 640-878 Online Practice Questions and Exam Preparation

Cisco 640-878 Online Questions & Answers

• Question 1:

  On Cisco IOS-XR, which command is used to review previous configuration events committed on the router?

  A. show configuration history
  B. show configuration commit changes
  C. show configuration commit list
  D. show configuration commit failed
  C. show configuration commit list

• Question 2:

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

  A. EIGRP
  B. RIP
  C. OSPF
  D. IS-IS
  E. IP default-gateway
  F. ODR
  G. Proxy Arp
  C. OSPF
  D. IS-IS
  E. IP default-gateway

• Question 3:

  

  Hot Area:

  

  

• Question 4:

  Which of the following commands would be used to prevent a switchport from processing Bridge Protocol Data Units?

  A. switch(config)#bpdu filter enable
  B. switch(config)#no bpdu enable
  C. switch(config-if)#spanning-tree bpdufilter enable
  D. switch(config-if)#no spanning-tree bpdu filter enable
  E. switch(config-if)#spanning-tree bpdu guard
  C. switch(config-if)#spanning-tree bpdufilter enable

• Question 5:

  Which three are correct statements based on the BGP configuration below? (Choose three.)

  Router#config t Router(config)#router bgp 1 Router(config-router)#neighbor 1.1.1.1 remote-as 1 Router(config-router)#neighbor 3.3.3.3 remote-as 2

  A. local AS is 1
  B. local AS is 2
  C. neighbor 1.1.1.1 remote-as 1 is iBGP peer
  D. neighbor 1.1.1.1 remote-as 1 is eBGP peer
  E. neighbor 3.3.3.3 remote-as 2 is iBGP peer
  F. neighbor 3.3.3.3 remote-as 2 is eBGP peer
  G. neighbor 2.2.2.2 remote-as 2 is iBGP peer
  H. neighbor 2.2.2.2 remote-as 2 is eBGP peer
  A. local AS is 1
  C. neighbor 1.1.1.1 remote-as 1 is iBGP peer
  F. neighbor 3.3.3.3 remote-as 2 is eBGP peer

• Question 6:

  

  

  Hot Area:

  

  

• Question 7:

  Refer to the show command exhibit.

  

  Which statement is true?

  A. It shows the result of the target configuration merged with the running configuration.
  B. It shows the contents of the uncommitted configuration.
  C. It shows the contents of the failed configuration.
  D. It shows the contents of the running configuration.
  B. It shows the contents of the uncommitted configuration.

• Question 8:

  A network engineer is trying to determine the mac address of a server attached to a switchport on a Cisco Catalyst 6500 Switch. The interface is connected, but no MAC address is present. The server has an IP address of 169.x.x.x. At which layer of the OSI Model does the problem exist?

  A. Layer 1
  B. Layer 2
  C. Layer 3
  D. Layer 4
  E. Layer 5
  F. Layer 6
  G. Layer 7
  A. Layer 1

• Question 9:

  Which configuration error within an AS can cause a Cisco IOS XR router to not announce certain prefixes to its EBGP peers?

  A. Some prefixes were mistagged with the no-export BGP community.
  B. Some prefixes were set with a MED of 0.
  C. The outbound BGP route policy has only set actions that are defined without any pass actions that are defined.
  D. The inbound BGP route policy has only set actions that are defined without any pass actions that are defined.
  A. Some prefixes were mistagged with the no-export BGP community.

• Question 10:

  On the Cisco ME 3400 switch, spanning tree is enabled by default on which type of switch port?

  A. UNI
  B. ENI
  C. NNI
  D. ENI and NNI
  E. UNI, ENI, and NNI
  C. NNI