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2021 Apr 400-351 answers
Q21. You are implementing a WLC at a remote site and want to make sure that you are able to sync up with the Cisco WCS at the central site. Which two statements about this process are true? (Choose two.)
A. If the WLC is behind a firewall, you must make sure that UDP ports 161 and 162 are open.
B. The Cisco WCS server does not need direct IP connectivity to the WLC.
C. Cisco WCS will not be able to communicate with the WLC if the WLC is behind a NAT device.
D. If the WLC is behind a NAT device, the WLC's dynamic AP-manager interface must be configured with the external NAT IP address.
Answer: A, C
Q22. You are conducting a site survey for a customer that is about to deploy Cisco wireless phones. Which three recommendations apply? (Choose three.)
A. Minimum SNR should be 15 dB.
B. The minimum recommended wireless signal strength for voice applications is - 71 dBm.
C. Minimum SNR should be 25 dB.
D. Wireless cell overlap should be 20 percent.
E. Minimum SNR should be 35 dB.
F. The minimum recommended wireless signal strength for voice applications is -57 dBm.
G. Wireless cell overlap should be 10 percent.
H. The minimum recommended wireless signal strength for voice applications is - 67 dBm.
Answer: A, D, F
Q23. After the AP mode is changed from local mode to bridge mode the AP cannot register the WLC considering the debug output into the exhibit .which description of the issue is true?
A. DTLS is not supported in bridge mode
B. The AP priority exceeds the number of joining APs
C. The AP MAC address is not added in the MAC filter list of the WLC
D. The date and time on the WLC and AP do not match
E. The AP does not have a valid certificate
F. The WLC does not have the image for the AP
Answer: C
Q24. DRAG DROP Drag and drop the RRM function on the left to the entity that performs the function on the right
Answer:
Exhibit
Answer:
Q25. Exhibit
Which AAA attribute is not used by the Cisco WLC running AireOS 8.0 ?
A. Tunnel-Pnvate-Group-10
B. Tunnel-Type
C. Airespace-QOS-Level
D. DACL
Answer: D
Update 400-351 practice:
Q26. Which two statement about AP local authentication by FlexConnect AP in standalone mode are true?(choose two)
A. Only LEAP,EAP F AST,PEAP and EAP-TLS authentication are supported
B. Only the vendor certificate authority (CA) certificate has to be downloaded to the Cisco wireless LAN controller for EAP-TLS authentication
C. Cisco wireless LAN controller must generate a certificate signing request by itself for submitting to a certificate authority for signing.
D. A flexconnect group must be created so that the cisco wireless LAN Controller can push the certificate to the flexconnect AP in the Flexconnect group.
Answer: A, D
Q27. Which three statements about 802.11ac are true? (choose three)
A. MU-MIMO is supported in wave 1
B. MU-MIMO allows one AP to transmit unique data to multiple stations simultaneously
C. when using MU-MIMI up to 8 devices can transmit data at the same time
D. 802.11 a/b/g/n device are able to connect to 802.11ac radios
E. it IS possible to reach 160 MHz by combining two discontinuous 80 MHz channel block
F. 802.11 ac is supported in the 2.4- and 5-Ghz radio band
Answer: B, D, E
Q28. based upon the given configuration which two statement are true? (choose two)
A. local RADIUS server is used
B. No password is required everyone can join wireless network
C. Users will be required to provide a username and password for authentication
D. User will be required to provide a password only order to get access
E. Remote RADIUS servers is used
Answer: A, C
Q29. Drag and drop steps of the 802.1x authentication process on the left to the corresponding number on the right.
Answer:
Q30. Which option in the cisco identity service engine allows for authorization based on Active Directory user and domain computer login?
A. Machine access restriction
B. Active directory group
C. Active directory attributes
D. Identity source sequences
Answer: A