[Free] 2018(Aug) Dumps4cert Cisco 640-875 Dumps with VCE and PDF Download 21-30

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Building Cisco Service Provider Next-Generation Networks, Part 1 (SPNGN1)

Question No: 21 DRAG DROP – (Topic 2)

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Question No: 22 – (Topic 2)

What is the size difference in bits between an IPv4 address and an IPv6 address?

A. 128

B. 100

  1. 98

  2. 96

  3. 32

Answer: D

Question No: 23 DRAG DROP – (Topic 2)

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Question No: 24 – (Topic 2)

Given a ring topology, which loop prevention mechanism provides the fastest reconvergence time after a link failure?

  1. Rapid Per-VLAN Spanning Tree Protocol

  2. Resilient Ethernet Protocol

  3. Multiple Spanning Tree Protocol

  4. Spanning Tree Protocol

Answer: B

Question No: 25 – (Topic 2)

Which three of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN? (Choose three.)

  1. Designated ports

  2. Alternate ports

  3. Converged ports

  4. Root bridge

  5. Root ports

  6. Backup ports

Answer: A,D,E

Question No: 26 DRAG DROP – (Topic 2)

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Question No: 27 DRAG DROP – (Topic 2)

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Topic 3, Switched Network Technologies

Question No: 28 – (Topic 3)

Which Cisco IOS CLI command is used to verify the speed and duplex settings on the Fa0/1 port on a Cisco switch?

  1. show ip interfaces fa0/1

  2. show interfaces fa0/1

  3. show interfaces fa0/1 switchport

  4. show ip interfaces brief

  5. show interfaces switchport

Answer: B

Question No: 29 – (Topic 3)

If a bridge port is in the non-designated state, which two statements about spanning-tree operations on this port are true? (Choose two.)

  1. This port is in the Forwarding state.

  2. This port sends BPDUs on the attached link.

  3. This port has the lowest cost to the root bridge.

  4. This port is considered the root port.

  5. This port receives BPDUs.

  6. This port is in the Blocked state.

Answer: E,F

Question No: 30 – (Topic 3)

What two commands enable port security and allow the switch to dynamically learn the connected MAC address? (Choose two.)

  1. switch5(config-if)#switchport port-security

  2. switch5(config)#switchport port-security

  3. switch5(config-if)#switchport port-security mac-address sticky

  4. switch5(config)#switchport port-security mac-address sticky

  5. switch5(config-if)#switchport port-security mac-address dynamic

  6. switch5(config-if)#switchport port-security mac-address auto

Answer: A,C

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