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  1. Home
  2. Cisco Certification
  3. 350-401 Exam
  4. Cisco.350-401.v2023-12-14.q298 Dumps
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Question 1

Refer to the exhibit. An engineer attempts to configure a trunk between switch sw1 and switch SW2 using DTP, but the trunk does not form. Which command should the engineer apply to switch SW2 to resolve this issue?

Correct Answer: D
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Question 2

A customer has recently implemented a new wireless infrastructure using WLC-5520S at a site directly next to a large commercial airport Users report that they intermittently lose Wi-Fi connectivity, and troubleshooting reveals it is due to frequent channel changes Which two actions fix this issue? (Choose two)

Correct Answer: A,C
Explanation
In the 5GHz spectrum some of the channels used by 802.11 are subject to Dynamic Frequency Selection (DFS) requirements. This is due to our clients coexistence with other RF technologies such as Maritime, Aviation and Weather RADAR.
Dynamic Frequency Selection (DFS) is the process of detecting radar signals that must be protected against interference from 5.0 GHz (802.11a/h) radios, and upon detection switching the operating frequency of the 5.0 GHz (802.11a/h) radio to one that is not interfering with the radar systems.
Reference: https://www.cisco.com/en/US/docs/routers/access/wireless/software/guide/RadioChannelDFS.pdf Although DFS helps reduce interference with radar systems but "DFS channels" refer to the 5GHz channels that require DFS check. In other words, DFS channels are channels that may interfere with radar signal.
Therefore we should disable these DFS channels -> Answer C is correct.
UNII-2 (5.250-5.350 GHz and 5.470-5.725 GHz) which contains channels 52, 56, 60, 64, 100, 104, 108, 112,
116, 120, 124, 128, 132, 136, and 140 are permitted in the United States, but shared with radar systems.
Therefore, APs operating on UNII-2 channels are required to use Dynamic Frequency Selection (DFS) to avoid interfering with radar signals. If an AP detects a radar signal, it must immediately stop using that channel and randomly pick a new channel.
Reference:
https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Channel_Planning_Best_Practices
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Question 3

Based on this interface configuration, what is the expected state of OSPF adjacency?

Correct Answer: C
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Question 4

When using TLS for syslog, which configuration allows for secure and reliable transportation of messages to its default port?

Correct Answer: A
Explanation
The TCP port 6514 has been allocated as the default port for syslog over Transport Layer Security (TLS).
Reference: https://tools.ietf.org/html/rfc5425
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Question 5

Refer to the exhibit.

An engineer must ensure that all traffic leaving AS 200 will choose Link 2 as an entry point. Assuming that all BGP neighbor relationships have been formed and that the attributes have not been changed on any of the routers, which configuration accomplish task?

Correct Answer: A
Explanation
R3 advertises BGP updates to R1 with multiple AS 100 so R3 believes the path to reach AS 200 via R3 is farther than R2 so R3 will choose R2 to forward traffic to AS 200.
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