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Exam 350-401 topic 1 question 991 discussion

Actual exam question from Cisco's 350-401
Question #: 991
Topic #: 1
[All 350-401 Questions]



Refer to the exhibit. Users in the Operations VLAN on Switch A are unable to communicate with users in the Operations VLAN on Switch B. Which action resolves the issue?

  • A. Set the switchport mode to dynamic desirable on Switch B.
  • B. Set the EtherChannel mode to LACP on Switch A.
  • C. Configure the same allowed VLAN list on Switch A and Switch B.
  • D. Set the EtherChannel mode to PAGP on Switch B.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by yasmiine at May 21, 2024, 10:14 p.m.

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Zeruz
3 months ago
Selected Answer: A
auto and auto won't make a trunking. At least one of the switches has to be configured in desireable to form a trunk. Answer A is the correct option.
upvoted 1 times
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chiacche
3 months, 3 weeks ago
Selected Answer: A
auto -> desirable
upvoted 1 times
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Miro07
5 months, 1 week ago
Selected Answer: A
A seems to be correct We need a trunk to form before VLANs can communicate. Option C is condition for PAGP to create etherchannel but is not necessary for VLANs to communicate.
upvoted 1 times
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Mohaned990_go
6 months ago
Selected Answer: C
c is correct A incorrect because switch B it is desirable already
upvoted 1 times
Reavr
5 months, 3 weeks ago
C is not correct. This is because the Operations VLAN (VLAN 30) is already allowing in both switches. The switchport is not in desirable already, only the channel group. The switchport command decides if it will be in trunk or access. Desirable means it will actively try to be in trunk as long as the other side is also "desirable" or "auto." We see both A and B are in dynamic auto so one of them needs to be switched to desirable. The only answer that does that is A. A is the correct answer.
upvoted 2 times
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Swiz005
7 months, 3 weeks ago
Selected Answer: A
Operations VLAN is 30. and VLAN 30 exists on both switches. Makes A the most sensible option
upvoted 3 times
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[Removed]
7 months, 3 weeks ago
Selected Answer: A
A is correct
upvoted 1 times
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shefo1
7 months, 3 weeks ago
Selected Answer: C
why A is wrong :: A. Set the switchport mode to dynamic desirable on Switch B: This option would not resolve the issue. The switchport mode is already set to dynamic auto on both switches, which is the correct setting for a trunk link.
upvoted 1 times
Megon
5 months, 3 weeks ago
no, Auto/auto will not form trunking.
upvoted 3 times
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yasmiine
7 months, 4 weeks ago
A is OK, but C is OK too, the etherchannel must have the same allowed vlan (1,10,20,30,50) in switch B. Am i wrong ?
upvoted 2 times
BenMTL
2 months, 1 week ago
Agree with you yasmiine. Either the question is not correct or both A and C are correct in my opinion
upvoted 1 times
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C (25%)
B (20%)
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