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2021 Apr 400-351 practice

Q1. Which two statement about LAG in the Cisco wireless LAN controller running Aire OS 8.0 are true?(choose two) 

A. LAG bundles all of the crsco WLC distribution system ports into a single 802.3ad port channel. 

B. There can be only one AP-manager interface if LAG is enabled 

C. LAG configuration change take effect immediately after they are configured 

D. Channel negotiation LACP and PAgP are supported 

Answer: A, B 


Q2. 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 


Q3. Your customer has high availability Clint SSO configure using a pair of Cisco 5508 WlCs running 8.0 code. The primary unit failed over and the secondary unit is now active. Which two statement are true. (Choose two) 

A. Both controller RMIcan be in different subnets. 

B. Only the clients that are in the run state are maintained during failover 

C. Clients that are in transition such as roaming are dissociated 

D. New mobility is supported 

Answer: B, C 


Q4. Given the IPV6 address and subnet 2001:adcb:3257:9048::/64,which option list the start and ending IP address of this subnet? 

A. 2001:adcb:3257:9048: ,2001:adcb:3257:9048:0000:0000:0000:ffff 

B. 2001:adcb:3257:9048:0:0:0:0 .2001:adcb:3257:9048:0000:ffff:ffff:ffff 

C. 2001:adcb:3257:9048:0:0:0:0 ,2001:adcb:3257:9048: ffff'ffff:ffff:ffff 

D. 2001:adcb:3257 9048 0 0 0 0 ,2001adbc: 3257 9048 0000:0000:0000:ffff E. 2001:adcb:3257:9048 :0:0:0:0, 2001:adcb:3257: 9048: 0000:0000:ffff: ffff 

E. 2001:adcb:3257:9048:0::, 2001:adcb:3257:9048:0000:0000:0000:ffff 

Answer: C 


Q5. In a VWLAN deployment, what autonomous ISO command should be used to ensure that VWLAN performance is not adversely impacted by an unexpected channel change resulting from a DFS event triggered by a nearby airport radar system? 

A. ap(config-if)#DFs band 1block 

B. ap(config-if)#DFs band 23 block 

C. ap(config-if)#DFs band 123 block 

D. ap(config-if)#DFs band 13 block 

E. ap(config-if)#DFs band 2 block 

Answer: B 


Abreast of the times 400-351 free exam:

Q6. DRAG DROP 

Drag and drop the AVC configuration feature on the left to their respective function on the right.? 

Answer: 

Exhibit 


Q7. Your customer plans to deploy a location-aware WLAN in a campus.which statements about the planning considera tion for location-aware WLAN are true ? 

(Choose two) 

A. Cisco PI allow as APS that are defined equipped with third-party antennas participate in client tag or rogue on demand location tracking 

B. Perimeter APs should complement APs located w1thin floor intenor areas m add1 t1on APs should be place m each of the four corners of the floor and at any other corner that are encountered along the floor perimeters. 

C. Onsite calibration is require otherwise location tracking for clients cannot be performed 

D. At least one AP are resident in each quadrant that surrounds the pomt-in- QUESTION NO: 

E. At least one AP that resides in each of at least three of the surrounding quadrant IS located within 70feet(-21.3meters) of the point-in- QUESTION NO: 

F. active RFID tags transmit directly to the APs and require 802.11authentication and require 802.11 authentication and association to pass data traffic to the realtime locating. 

Answer: C, E 


Q8. You are a network administrator at ACME corporation where you have a pair of Cisco 5760 Wireless LAN Controllers deployed for HA AP SSO mode. A failover event occurs and the secondary Cisco 5760 controller moves into the active role. Which three statements about the failover event are true? (Choose three) 

A. Rogue APs and clients are not synced to the standby and are releamed upon switchover. 

B. With SSO,wIPS information is already synced with the stanby unit and this information need not be releamed upon switchover. 

C. Upon guest anchor controller switchover, mobility tunnels stay active, APs remain connected, clients rejoin at MA or MC, and clients are anchored on the new active controller. 

D. Switchover during AP preimage download causes the APs to start image download all over again from the new active controller. 

E. The new active controller does not need to releam the shun list from IPS and other MCs, which eliminates the need to redistribute it to the Mas. 

F. Netflow records are already exported upon switchover and collection starts resuming in the new active controller. 

Answer: C, D, E 


Q9. Which statement about wireless LAN security in a Cisco Unified Wireless Network VoWLAN deployment is false? 

A. EAP-FAST, if available, is the recommended EAP type for use in VoWLAN deployments. 

B. Although LEAP is considered secure for VoWLAN handsets when correctly deployed, it is recommended that a different EAP method (FAST, PEAP, TLS) is used, if available. 

C. Dynamic WEP mitigates the security weaknesses in static WEP, making it a viable option that can be relied upon to secure a VoWLAN deployment. 

D. When using EAP authentication, the EAP-Request timeout value should be adjusted based only on the advice of the VoWLAN handset vendor. 

E. When using WPA Personal, strong keys should be used to avoid a dictionary attack. 

Answer: D 


Q10. Your customer is having wireless VoIP problems. When the Cisco 7925 phones roam from APtlo AP2, the voice drops out and comes back. The phones are set up for PEAP/WPA2-AES with CCKM to an external RADIUS server .The APs and WLAN are setup in FlexConnect mode. Which statement explains the issue? 

A. PEAP with WPA2-AES is not supported with Cisco Centralized Key Management, use EAP-FAST. 

B. The APs have not been added to the FlexConnectgroup . 

C. PEAP with WPA2-AES is not supported with Cisco Centralized Key Management, use LEAP. 

D. The APs have been added to the FlexConnectgroup . 

Answer: B