how many questions of 400-351 pdf?

Q1. 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. 

View Answer

Q2. Your customer is thinking of migrating the exiting IEEE 802.11b/g network to an IEEE 802.11ac network which two statement are true ?(choose two) 

A. Backward compatibility need to be considered for the existing legacy IEEE 802.11b/g mobile devices. 

B. Channel option are limited on the radio band UNII 3 due to DFS 

C. Ensure that the WLANs have WMM enabled and support open or WPA2/AES encryption 1n order to reach IEEE 802.11ac speeds even on IEEE. 802.11ac clients 

D. Fewer APs have to be proposed because the IEEE 802.llac network provides a faster speed and larger converge area compared with the IEEE 802.11b/g network. 

View Answer

Q3. Refer to the exhibit. 

You enabled NAT to make sure that your WLC is publicly reachable . if other NAT parameters are left to default1 which statement is true. ? 

A. The AP WLC discovery fails for APs int local mode using 209.165.200.44 

B. The AP WLC discover succeeds for OEAPsjoning the WLC using 192.168.3.44 

C. The AP WLC discover succeeds for OEAPsJoning the WLC using 192.168.3.44 or 209 165.200.44D. The AP WLC discover Fail for APs in local mode using 

192.168.3.44 

View Answer

Q4. Which two Characteristic of U-APSD are true ?(Chosse two) 

A. U-APSD is enabled automatically when WMM is enabled 

B. In addition to extending battery life, U-APSD increases the latency of the traffic flow delivered over the wireless media 

C. U-APSD is configured on the access point switch port and supports the Power over Ethernet feature D. (Unscheduled automatic power save delivery) U-APSD is a Qos facility defined in IEEE 802.11e that extends the battery life of mobile clients 

View Answer

Q5. Drag and drop steps of the 802.1x authentication process on the left to the corresponding number on the right. 

View Answer

Q6. Refer to the exhibit. 

A wireless user has roamed from an AP connected to MA 1to AP connected to MA 3the traffic flow for the user between roam is shown . Which option shows the traffic flow for the user after roam, considering default sticky anchoring is enabled on the WLAN? 

A. MA-3>Distribution switch>core>mc>distribution switch >MA-1 

B. MA-3>Distribution switch>MA-1distribution switch >core 

C. MA-3> Distribution switch>MA-2>Distribution switch >core 

D. MA-3> Distribution switch >ma -2> MA-l>Distribution switch>core 

View Answer

Q7. You are working on a deployment that uses two Cisco APs as wireless bridges. One of the bridges is configured as a root bridge and the second bridge is configured as a nonroot bridge. Client A associates to the root bridge and client B associates to the nonroot bridge. Which two statements about this scenario are true? (Choose two) 

A. The default setting of a bridge is nonroot bridge. 

B. For two bridges to communicate with each other, one of the bridges must be in root mode and the other bridge must be in nonroot mode. 

C. Only one device can connect to the Ethernet port of a nonroot bridge. 

D. Two bridges that are in root mode can talk to each other. 

E. In point-to-multipoint bridging, WGB is not recommended with the root bridge. WGB must be associated to the root AP in point-to-multipoint bridging setup. 

View Answer

Q8. 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 

View Answer

Q9. Which mechanism incorporates the channel capacity into the CAC determination And gives a much more accurate assessment of the current Call-carrying capacity of the AP ? 

A. Expedited bandwidth 

B. Admission control 

C. Reserved roaming bandwidth(%) 

D. Load-based AC 

E. Max RF bandwidth(%) 

F. Metrics collection 

View Answer

Q10. Exhibit 

A. Group Temporal Key 

B. Pairwise Transient Key 

C. Master Session Key 

D. Pairwise Master Key 

View Answer