[Free] 2018(Mar) EnsurePass Braindumps Cisco 640-878 Dumps with VCE and PDF 31-40

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2018 Mar Cisco Official New Released 640-878
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Building Cisco Service Provider Next-Generation Networks, Part 2

Question No: 31

What feature of the Cisco ASR series enables service providers and enterprise customers to manage their network performance with respect to bandwidth, delay, jitter, and packet loss?

  1. power over ethernet

  2. quality of service architecture

  3. ip sla

  4. layer 3 capability

Answer: B

Question No: 32

ISPs use which protocol to establish peering sessions in an Internet exchange point environment?

  1. LDP

  2. IS-IS

  3. BGP

  4. OSPF

Answer: C

Question No: 33 HOTSPOT


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Question No: 34

Refer to the exhibit.

A network engineer configured BGP PE to CE neighbor sessions with the commands shown. What does #39;address-family ipv4 vrf vrf-cisco#39; from the configuration allow?

  1. activates the advertisement of the IPv4 address family

  2. defines customer#39;s routing context

  3. specifies a network and mask to announce in VRF-Cisco

  4. redistribute VRF-Cisco

Answer: B

Question No: 35 HOTSPOT


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Question No: 36

Refer to the Cisco IOS XR configuration exhibit.

Which statement about the configuration is true?

  1. This is a Level-2-only router.

  2. This is a Level-1-only router.

  3. The maximum IS-IS path metric is 63.

  4. This router belongs to area ID 0001.

  5. This configuration is missing the net configuration for the IPv6 unicast address family.

Answer: D

Explanation: Explanation/Reference: http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a00800a3e6f.shtm l#wp39875

Question No: 37 DRAG DROP


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Question No: 38

Refer to the configuration example exhibit.

Which statement is true?

  1. A trunk port has been created and VLAN has been allowed.

  2. An access port has been created on a UNI.

  3. A customer VLAN of 209 is configured.

  4. A QinQ VLAN of 118 is configured.

Answer: D

Explanation: Explanation/Reference: http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/t unnel.html#wp1026594

Question No: 39

What command will install the image needed on the Cisco IOS-XR if the SSH configuration options are unavailable?

  1. install activate disk0:c12k-k9sec.pie-4.1.2

  2. install activate disk0:c12k-diags.pie-4.1.2

  3. install commit disk0:c12k-diags.pie-4.1.2

  4. install ssh activate disk0:c12k-k9sec.pie-4.1.2

Answer: A

Question No: 40

Which type of service provider is responsible for offering backbone connectivity services to other service providers?

  1. CSP

  2. TSP

  3. NSP

  4. ISP

  5. ASP

Answer: C

Explanation: Explanation/Reference:



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