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Exam 350-501 topic 1 question 244 discussion

Actual exam question from Cisco's 350-501
Question #: 244
Topic #: 1
[All 350-501 Questions]

The network team is planning to implement IPv6 on the company's existing IPv4 network infrastructure. The network currently uses IS-IS to share routes between peers. Which task must the team perform so that IS-IS will run in multitopology mode on the updated IPv6 network?

  • A. Configure the links between the network routers as point-to-point.
  • B. Configure the network routers to use metric-style wide.
  • C. Configure the network routers as Level 2 routers.
  • D. Configure the IS-IS IPv6 metric on the dual-stack links.
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Suggested Answer: B 🗳️
by oreluc at Sept. 15, 2022, 6:55 p.m.

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rvolfoni
Highly Voted 2 years, 8 months ago
Selected Answer: B
When multitopology support for IPv6 is used, use the metric-style widecommand to configure IS-IS to use new-style TLVs because TLVs used to advertise IPv6 information in link-state packets (LSPs) are defined to use only extended metrics.
upvoted 7 times
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ccie_race
Highly Voted 2 years, 7 months ago
B seems the correct option
upvoted 5 times
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enco
Most Recent 10 months ago
Selected Answer: B
metric is optional os mentioned on config guide: The optional isis ipv6 metric command allows you to differentiate between link costs for IPv6 and IPv4 traffic when operating in multitopology mode.
upvoted 1 times
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thejag
2 years, 2 months ago
B https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-mt/irs-15-mt-book/ip6-route-multi-isis.html#:~:text=multiple%20topology%20mode.-,IS%2DIS%20Multitopology%20Support%20for%20IPv6,-IS%2DIS%20multitopology
upvoted 1 times
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oreluc
2 years, 8 months ago
i would go for B. metric-type wide is mandatory!
upvoted 4 times
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B (20%)
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