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Exam 350-501 topic 1 question 110 discussion

Actual exam question from Cisco's 350-501
Question #: 110
Topic #: 1
[All 350-501 Questions]


Refer to the exhibit. A network operator has two IPv4 and IPv6 dual-stacked networks on each side of the IPv4 core network. The operator must be able to provide connectivity between them while using specific assigned IPv6 space provided from the company IP administrator team. Which technology should the network operator use to accomplish this goal?

  • A. 6rd
  • B. DS-Lite
  • C. NAT44
  • D. NAT46
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Suggested Answer: A 🗳️
by Cprest at Nov. 9, 2021, 3:53 a.m.

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craterman
Highly Voted 10 months ago
Selected Answer: A
Correct answer is A. 6rd is a mechanism to facilitate IPv6 rapid deployment across IPv4 infrastructures of Internet service providers (ISPs). It is derived from 6to4, a preexisting mechanism to transfer IPv6 packets over the IPv4 network, with the significant change that it operates entirely within the end-user's ISP's network, thus avoiding the major architectural problems inherent in the original design of 6to4.
upvoted 6 times
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EdgardoAC
Most Recent 10 months, 3 weeks ago
To further add to the discusion option D can't be right, since NAT46 provides a mechanism for connectivity of IPv4 hosts to IPv6 internet, when dualstack and IPv6 tunneling solutions cannot be used.
upvoted 1 times
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sherlock0
11 months ago
6RD IS CORRECT
upvoted 4 times
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[Removed]
11 months, 2 weeks ago
As per Cprest, the correct answer is A
upvoted 2 times
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Cprest
11 months, 4 weeks ago
please read the question well, it talks about interconnecting two sites with dual stack (IPV4 and IPV6) , using an ipv4 network core, does not talk about NAT services. The 6RD feature is an extension of the 6to4 feature. The 6RD feature allows a service provider (SP) to provide a unicast IPv6 service to customers over its IPv4 network by using encapsulation of IPv6 in IPv4. The answer correct is 6RD https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/xe-16-9/ir-xe-16-9-book/ip6-6rd-tunls-xe.html
upvoted 3 times
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C (25%)
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