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Exam 350-601 topic 1 question 35 discussion

Actual exam question from Cisco's 350-601
Question #: 35
Topic #: 1
[All 350-601 Questions]

An engineer is implementing OTV on a transport that supports multicast. The solution needs to meet the following requirements:
✑ Establish adjacency to the remote peer by using multicast.
Enable OTV advertisements for VLAN 100 to the other site.

Which two commands should be configured to meet these requirements? (Choose two.)

  • A. otv extend-vlan 100
  • B. otv site-vlan 100
  • C. otv use-adjacency-server 172.27.255.94
  • D. otv data-group 232.2.2.0/28
  • E. otv control-group 232.1.1.1
Show Suggested Answer Hide Answer
Suggested Answer: AE 🗳️
by kkkk_56 at March 15, 2021, 8:54 p.m.

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blurain
Highly Voted 3 years, 8 months ago
A and E are correct. Question clearly asked for VLAN 100 to be extended and adjacencies to be formed.
upvoted 20 times
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kkkk_56
Highly Voted 3 years, 8 months ago
The correct answers would be A, E. The otv data-group command is used to pass the data multicast traffic if there's any. While otv control-group is used to form an adjacency with other TEPs. otv extend <vlan> command is used to enable OTV advertisements for this vlan,
upvoted 12 times
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naleenh
Most Recent 10 months, 1 week ago
Selected Answer: AE
To satisfy both the conditions, the correct answer should be A & E
upvoted 1 times
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Bazic
1 year, 4 months ago
Selected Answer: AE
*otv extend-vlan vlan-range: Extends a range of VLANs over this overlay interface and enables OTV advertisements for these VLANs. The vlan-range is from 1 to 3967 and from 4048 to 4093. *otv control-group mcast-address: Configures the multicast group address used by the OTV control plane for this OTV overlay network. The multicast group address is an IPv4 address in dotted decimal notation.
upvoted 1 times
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pavm
1 year, 9 months ago
I´m not sure about A because the command is abput range no ID vlan otv extend-vlan (vlan-range) Extends a range of VLANs over this overlay interface and enables OTV advertisements for these VLANs. The vlan-range is from 1 to 3967 and from 4048 to 4093.
upvoted 1 times
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GuyThatTakesDumps
2 years, 2 months ago
Selected Answer: AE
A & E correct!
upvoted 3 times
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mahmoudlol
2 years, 4 months ago
Selected Answer: AE
VLAN 100 to be extended The correct ans is A and E
upvoted 1 times
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mku_72
2 years, 5 months ago
Selected Answer: AE
Seems A and E are correct :)
upvoted 1 times
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Samanmal2020
2 years, 7 months ago
A and E are correct
upvoted 1 times
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Smoothey
2 years, 8 months ago
Selected Answer: AE
N7K-4 config: vlan 510 name OTVSITE vlan 100 name OTVEXTEND otv site-vlan 510 interface Overlay1 otv join-interface Ethernet2/1 otv control-group 232.1.1.1 otv data-group 232.1.1.0/28 otv extend-vlan 100 no shutdown
upvoted 1 times
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masal
3 years, 2 months ago
https://www.cisco.com/c/dam/en/us/products/collateral/switches/nexus-7000-series-switches/guide_c07-728315.pdf A and E seem the correct answers.
upvoted 1 times
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designated
3 years, 6 months ago
The correct answer would be B and E. A) It's a form to extend vlan across the overlay = Wrong B) The site adjacency is formed across the site VLAN (AED) = Correct > you can check using "show otv isis internal event-history iih | inc site" = Correct C) Used to form unicast-only type = wrong D) Used to carry multicast data traffic using SSM = wrong E) The control plane is encapsulated in IP multicast packets. Allows for dynamic neighbor discovery by having each OTV ED join the multicast control-group through the transport (ASM) = Correct Reference by book "Troubleshooting Cisco Nexus Switches and NX-OS"
upvoted 1 times
Daeh
3 years, 6 months ago
Wrong. The site VLAN must not be extended into the OTV. This configuration is not supported and this helps to avoid unexpected results. Source (Cisco): https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/OTV/config_guide/b_Cisco_Nexus_7000_Series_NX-OS_OTV_Configuration_Guide/basic-otv.html
upvoted 2 times
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Markeboy
3 years, 6 months ago
I would say A and D are correct as the control-group multicast address needs to be an ASM address, not a SSM address.
upvoted 1 times
Daeh
3 years, 6 months ago
Wrong. The Multicast Data Group is only used to transport Multicast Data flows which are encapsulated as SSM Multicast, but not to form adjacencies.
upvoted 1 times
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Tadese
3 years, 8 months ago
I seem the correct Answer are A&E
upvoted 5 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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