9-9 - Summary Challenge

Question 1

What is true about IPv6 Rapid Deployment (6RD)?

A. It utilizes stateless IPv6 in IPv4 encapsulation in order to transit IPv4-only network infrastructure.
B. It is a combination of tunnel and translation technologies.
C. It supports the translation of one IP address from one address family into another IP address of another address family.
D. It enables you to configure mapping rules for translation between IPv4 and IPv6 addresses.

Answer 1

A

Question 2

What is true about implementing static IPv6-in-IPv4 tunnels in a MPLS VPN backbone?

A. This solution tunnels imposes a major impact on the operation or infrastructure of MPLS.
B. Communication with the PE routers is IPv6-only, and the traffic appears to be IPv6 to the MPLS domain.
C. This solution implemented on the CE routers is the simplest way to deploy IPv6 over MPLS networks.
D. These tunnels permit the delegation of a /48 prefix address from the MPLS service provider address space to customers.

Answer 2

C

Question 3

Which of the following statements about Using Layer 2 MPLS VPNs to support IPv6 is true?

A. Circuit transport requires changes to the P routers in the core and the PE routers that connect to customers.
B. This solution has a major impact on the operation or infrastructure of MPLS.
C. Pseudowires and virtual bridge domains cannot be used with this solution.
D. Communication between remote IPv6 domains runs native IPv6 protocols over a dedicated link.

Answer 3

D

Question 4

What is true about using IPv6 Provider Edge Routers (6PE)?

A. Forwarding in the core of the MPLS network is done by label switching.
B. The Cisco 6PE routers encapsulate IPv4 traffic by using two levels of MPLS labels.
C. It allows the appearance of a native IPv4 service to be offered across the network.
D. A hierarchy of labels at the Cisco 6PE ingress router are not longer required.

Answer 4

A

Question 5

What is true about using IPv6 VPN Provider Edge Router (6VPE)?

A. Configuration and operation are different for IPv4 VPNs.
B. This solution supports both IPv4 and IPv6 VPNs concurrently on the same interfaces.
C. To support this solution, modifications must be made on the MPLS core.
D. ISPs that offer MPLS VPNs for IPv4 can not use Cisco 6VPE.

Answer 5

B

Question 6

Match the following GRE tunnel types to the correct description.

GRE Tunnel Types:
P-to-PE
CE-to-PE
P-to-P
PE-to-PE

Descriptions:
A scalable way to connect multiple customer networks across a non-MPLS network.

Connects a provider edge device to a segment in the MPLS core.

Connects two MPLS core segments across a non-MPLS network.

This solution does not exist.

Answer 6

A scalable way to connect multiple customer networks across a non-MPLS network. == PE-to-PE

Connects a provider edge device to a segment in the MPLS core. == P-to-PE

Connects two MPLS core segments across a non-MPLS network. == P-to-P

This solution does not exist. == CE-to-PE

Question 7

What is true about IPv6 MPLS VPN routing requirements?

A. MLSP labels are not necessary for IPv6 sites to communicate with each other.
B. 6PE/6VPE uses the existing MPLS IPv4 core infrastructure for IPv6 transport.
C. The 6PE multipath feature uses OSPFv3 to distribute IPv6 routes.
D. Routing extensions are not need for IPv6 operations in the VPN environment.

Answer 7

B