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2018 May Cisco Official New Released 400-351
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CCIE Wireless (v3.1)
Question No: 131 DRAG DROP – (Topic 2)
Refer to the exhibit.
Drag and drop steps of the 802.1x authentication process on the left to the corresponding number on the right.
Answer:
Question No: 132 DRAG DROP – (Topic 2)
Drag and drop the 802.11 standards on the left onto the corresponding descriptions on the right.
Answer:
Question No: 133 – (Topic 2)
Which feature insersection of a Cisco 5760 Wireless LAN Controller with HA AP SSO is not true?
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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.
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Roamed clients that have their data path going through the mobility tunnel endpoint quot; become Localquot; in case of Layer 2 with sticky anchoring an Layer3 roam. Layer 2 roamed clients are not affected except when roaming occurs between Cisco Unified Wireless Network and CA controllers.
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wIPS information is synced to the standby unit. The standby unit does not have to relarn wIPS information upon switchover.
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Switchover during AP preimage download caused the APs to start image download all over again from the new active controller.
Answer: B
Question No: 134 – (Topic 2)
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)
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The default setting of a bridge is nonroot bridge.
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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.
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Only one device can connect to the Ethernet port of a nonroot bridge.
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Two bridges that are in root mode can talk to each other.
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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.
Answer: A,E Explanation:
http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/16041- bridge-faq.html
http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/22950-br-ts- 22950.html#reset
http://www.cisco.com/c/en/us/td/docs/wireless/access_point/15-3- 3/configuration/guide/cg15-3-3/cg15-3-3-chap6-radio.html
Question No: 135 – (Topic 2)
Refer to the exhibit. At which rate are the multicast frames transmitted by an autonomous AP configured with these data rates, considering the client on the AP is a 802.11b client?
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36.0 mbps
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11.0 mbps
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12.0 mbps
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5.5 mbps
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2 mbps
Answer: B
Question No: 136 – (Topic 2)
An autonomous AP is configured with the infrastructure -client command. What is this command used for?
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to allow more than 20 client associations
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to send reliable multicast traffic
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to enable multiple VLANs to cross the bridge link
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to allow only infrastructure device associations
Answer: B
Question No: 137 – (Topic 2)
Which ArieOS release is the first to support New Mobility on the 2504 WLC ?
A. 7.4.x
B. 7.6.x
C. 8.0.x
D. 8.1.x
Answer: B
Question No: 138 – (Topic 2)
Which three statements about 802.11ac are true? (choose three)
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MU-MIMO is supported in wave 1
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MU-MIMO allows one AP to transmit unique data to multiple stations simultaneously
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when using MU-MIMI up to 8 devices can transmit data at the same time
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802.11 a/b/g/n device are able to connect to 802.11ac radios
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it IS possible to reach 160 MHz by combining two discontinuous 80 MHz channel block
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802.11 ac is supported in the 2.4- and 5-Ghz radio band
Answer: B,D,E
Question No: 139 – (Topic 2)
Which multicast mode is recommended when configuring Media Stream on a Cisco WLC?
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multicast-uncast
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multicast-routing
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multicast-multicast
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multicast-direct
Answer: C
Question No: 140 – (Topic 2)
Which two statements are true with regards to RRM? (Choose two.)
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RRM neighbor messages are sent at the lowest mandatory speed.
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RRM neighbor messages are sent on channel 1.
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RRM neighbor messages are sent at minimum power.
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RRM neighbor messages are sent over the air.
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RRM neighbor messages are sent every 120 sec by default.
Answer: B,D
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