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ENARSI MPLS – Topic-Based Mini Quiz 1

CCNP ENARSI 300-410 Practice Pack Topic-Based Mini Quizzes ENARSI MPLS – Topic-Based Mini Quiz 1

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Question 1 of 10

1. Question
How are customer routes isolated on PE routers in an MPLS Layer 3 VPN?
- By using VRFs
- By using VDCs
- By using MP-BGP
- By using LDP
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Question 2 of 10

2. Question
How are MPLS Layer 3 VPN services deployed?
- The RD and RT values must match under the VRR.
- The RD and RT values under a VRF must match on the remote PE router.
- The import and export RT values under a VRF must always be the same.
- The label switch path must be available between the local and remote PE routers.
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Question 3 of 10

3. Question
How are packets forwarded in an MPLS domain?
- Using the destination IP address of the packet.
- Using the source IP address of the packet.
- Using a number that has been specified in a label.
- Using the MAC address of the frame.
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Question 4 of 10

4. Question
Identify the true statements with the MPLS VPN device types. (Choose three).

1. Customer (C) device = A device in the enterprise network that connects to the other customer devices.
2. CE device = A device at the edge of the enterprise network that connects to the CE device.
3. PE device = A device that attaches and detaches the VPN labels to the packets in the provider network.
4. Provider (P) device = A device in the core of the provider network that switches MPLS packets.
- 1, 2, 3
- 2, 3, 4
- 1, 3, 4
- 1, 2, 4
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Question 5 of 10

5. Question
Match the MPLS VPN concepts with its correct definition.
- Route Distinguisher = Controls the import/export of customer prefixes
  Route Target = Uniquely identifies a customer prefix
  Resource Reservation Protocol = Propagates VPN reachability information
  Multiprotocol BGP = Distributes labels for traffic engineering
- Route Distinguisher = Uniquely identifies a customer prefix
  Route Target = Controls the import/export of customer prefixes
  Resource Reservation Protocol = Distributes labels for traffic engineering
  Multiprotocol BGP = Propagates VPN reachability information
- Route Distinguisher = Propagates VPN reachability information
  Route Target = Distributes labels for traffic engineering
  Resource Reservation Protocol = Controls the import/export of customer prefixes
  Multiprotocol BGP = Uniquely identifies a customer prefix
- Route Distinguisher = Distributes labels for traffic engineering
  Route Target = Propagates VPN reachability information
  Resource Reservation Protocol = Uniquely identifies a customer prefix
  Multiprotocol BGP = Controls the import/export of customer prefixes
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Question 6 of 10

6. Question
Refer to the exhibit. What does the imp-null tag represent in the MPLS VPN cloud?
- Include the EXP bit
- Exclude the EXP bit
- Impose the label
- Pop the label
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Question 7 of 10

7. Question
What does the PE router convert the IPv4 prefix to within an MPLS VPN?
- 48-bit route combining the IP and PE router-id
- VPN-IPv4 prefix combined with the 64-bit route distinguisher.
- eBGP path association between the PE and CE sessions.
- Prefix that combines the ASN, PE router-id, and IP prefix.
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Question 8 of 10

8. Question
What statement about route distinguishers in an MPLS network is true?
- Route distinguishers make a unique VPNv4 address across the MPLS network.
- Route distinguishers allow multiple instances of a routing table to coexist within the edge router.
- Route distinguishers are used for label bindings
- Route distinguishers define which prefixes are imported and exported on the edge router
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Question 9 of 10

9. Question
Which component of MPLS VPNs is used to extend the IP address so that an engineer is able to identify to which VPN it belongs?
- VPNv4 address family
- RD
- RT
- LDP
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Question 10 of 10

10. Question
Which IGPs are supported by the MPLS LDP autoconfiguration feature?
- ISIS and RIPv2
- RIPv2 and OSPF
- OSPF and IS-IS
- OSPF and EIGRP
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