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Exam 300-420 topic 1 question 20 discussion

Actual exam question from Cisco's 300-420
Question #: 20
Topic #: 1
[All 300-420 Questions]

An engineer must design a solution to provide backup connectivity between two sites. The engineer plans to use an Internet connection, but company policy requires the connection to be encrypted. Additionally, there are several applications that utilize multicast to deliver video streams between the sites. Which technology should the design include?

  • A. GRE over IPsec
  • B. IPsec direct encapsulation
  • C. GETVPN
  • D. DMVPN
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Suggested Answer: A 🗳️
by XalaGyan at March 25, 2022, 8:55 a.m.

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Beehurls
6 months ago
Selected Answer: A
I would say GETVPN is the ideal choice because of the multicast video, but the only thing holding me back is that this is a backup connection. So the cost and complexity may be too high for something rarely used. GRE over IPSEC has more overhead, but will be simple to setup and manage.
upvoted 1 times
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uzu13
1 year ago
Selected Answer: A
DMVPN is useful when where are many remote sites. For site to site connection, GETVPN is the reasonable solution.
upvoted 1 times
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python_tamer
1 year, 1 month ago
Selected Answer: A
A - GRE over IPsec. There is no need for GETVPN or DMVPN as there are only 2 sites and question does not say there will be more. Keep it simple.
upvoted 3 times
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cwoolie
1 year, 3 months ago
Answer is A. GRE over IPSEC is encrypted..
upvoted 2 times
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cwoolie
1 year, 3 months ago
Answer A
upvoted 2 times
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XalaGyan
1 year, 3 months ago
Selected Answer: D
According to this website i recommend DMVPN https://www.cisco.com/c/dam/en_us/solutions/industries/docs/gov/IntegNet_Feb17_915_Lynn.pdf Dynamic Multipoint VPN (DMVPN) Major F eatures  Configuration reduction and no-touch deployment  I P unicast, I P multicast and dynamic routing protocol s  Spokes with dynamical l y assigned addresses
upvoted 1 times
python_tamer
1 year, 1 month ago
No need to DMVPN. Question states a single VPN between just 2 sites.
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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