Free Access Cisco.350-401.v2021-10-13.q148 Practice Test (Page 13)

Question 56

Refer to the exhibit.

An engineer reconfigures the pot-channel between SW1 and SW2 from an access port to a trunk and immediately notices this error in SW1's log.
Which command set resolves this error?
A)

A.Option D

B.Option A

C.Option B

D.Option C

Question 57

In a Cisco Catalyst switch equipped with two supervisor modules an administrator must temporally remove the active supervisor from the chassis to perform hardware maintenance on it. Which mechanism ensure that the active supervisor removal is not disruptive to the network operation?

A.NSF/NSR

B.SSO

C.HSRP

D.VRRP

Question 58

An engineer configures a WLAN with fast transition enabled Some legacy clients fail to connect to this WLAN Which feature allows the legacy clients to connect while still allowing other clients to use fast transition based on then OLTIs?

A.over the DS

B.adaptive R

C.802.11V

D.802.11k

Correct Answer: B

Explanation
802.11r Fast Transition (FT) Roaming is an amendment to the 802.11 IEEE standards. It is a new concept for roaming. The initial handshake with the new AP occurs before client roams to the target AP. Therefor it is called Fast Transition. 802.11rprovides two methods of roaming:
+ Over-the-air: With this type of roaming, the client communicates directly with the target AP using IEEE
802.11authentication with the Fast Transition (FT) authentication algorithm. + Over-the-DS (distribution system): With this type of roaming, the client communicates with the target AP through the current AP. The communication between the client and the target AP is carried in FT action frames between the client and the current AP and is then sent through the controller.
But both of these methods do not deal with legacy clients.
The 802.11k allows 11k capable clients to request a neighbor report containing information about known neighbor APs that are candidates for roaming.
Reference: https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/80211r-ft/b-80211r-dg.html IEEE 802.11v is an amendment to the IEEE 802.11 standard which describes numerous enhancements to wireless network management. One such enhancement is Network assisted Power Savings which helps clients to improve the battery life by enabling them to sleep longer. Another enhancement is Network assisted Roaming which enables the WLAN to send requests to associated clients, advising the clients as to better APs to associate to. This is useful for both load balancing and in directing poorly connected clients.
Reference:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/802-11v.pdf Cisco 802.11r supports three modes: + Pure mode: only allows 802.11r client to connect + Mixed mode:
allows both clients that do and do not support FT to connect + Adaptive mode: does not advertise the FT AKM at all, but will use FT when supported clients connect Therefore "Adaptive mode" is the best answer here.

Question 59

On which protocol or technology is the fabric data plane based in Cisco SD-Access fabric?

A.IS-IS

B.Cisco TrustSec

C.VXLAN

D.LISP

Question 60

Refer to the exhibit.

Which privilege level is assigned to VTY users?

A.1

B.7

C.13

D.15

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Question 56

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Question 58

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Question 60

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