Exam 300-425 topic 1 question 99 discussion

Actual exam question from Cisco's 300-425

Question #: 99
Topic #: 1

An engineer must create data-link redundancy for the company's Cisco Wireless LAN Controller. The engineer has decided to configure LAG-based redundancy instead of port-based redundancy. Which three features of LAG-based redundancy influenced this decision? (Choose three.)

A. Packets are always sent out on the same port they are received on.
B. All interface traffic passes as long as one port is up.
C. The same port has multiple untagged dynamics interfaces.
D. Interface connection to two separate nonstacked switches is available.
E. Full bandwidth of all links is available.
F. Ports are grouped into multiple LAGs.

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Suggested Answer: ABF 🗳️

by skh at May 12, 2021, 12:43 p.m.

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skh

Highly Voted 3 years, 12 months ago

I would say ABE You cannot configure the controller’s ports into separate LAG groups. Only one LAG group is supported per controller. Therefore, you can connect a controller in LAG mode to only one neighbor device.

upvoted 15 times

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Farhad123

Most Recent 6 months, 3 weeks ago

make sense ABE

upvoted 1 times

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jzzmth

1 year, 1 month ago

Selected Answer: ABE

https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/m_configuring_link_aggregation.html A: Correct - "When you enable LAG, the controller sends packets out on the same port on which it received them" B: Correct - "When you enable LAG, only one functional physical port is needed for the controller to pass client traffic." C: Incorrect - "When you enable LAG, all dynamic AP-manager interfaces and untagged interfaces are deleted, D: Incorrect - "With LAG, all of the controller ports need to connect to the same neighbor switch." E: Correct - No reference, but correct by process of elimination F: Incorrect - "You cannot configure the controller’s ports into separate LAG groups. Only one LAG group is supported per controller."

upvoted 2 times

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ASV2020

3 years, 6 months ago

Answer: ABE

upvoted 3 times

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Goatgirl20

3 years, 9 months ago

https://community.cisco.com/t5/wireless-mobility-documents/lag-link-aggregation/ta-p/3128669 L AGs multiply the bandwidth, increase port flexibility, and provide link redundancy between two devices. ABE

upvoted 4 times

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