[Free] 2017(Apr) Ensurepass Braindumps Cisco 400-351 Latest Dumps 121-130

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CCIE Wireless Written Exam v3.1

QUESTION 121

You need to open the appropriate firewall port for RLDP. Which port must you open?

 

A.

UDP 6352

B.

UDP 5246

C.

TCP 37540

D.

TCP 8443

E.

TCP 16113

F.

UDP 16666

 

Correct Answer: A

Explanation:

Rogue Location Discovery Protocol (RLDP) is an active approach, which is used when rogue AP has no authentication (Open Authentication) configured. This mode, which is disabled by default, instructs an active AP to move to the rogue channel and connect to the rogue as a client. During this time, the active AP sends de-authentication messages to all connected clients and then shuts down the radio interface. Then, it associates to the rogue AP as a client. The AP then tries to obtain an IP address from the rogue AP and forwards a User Datagram Protocol (UDP) packet (port 6352) that contains the local AP and rogue connection information to the controller through the rogue AP. If the controller receives this packet, the alarm is set to notify the network administrator that a rogue AP was discovered on the wired network with the RLDP feature.

 

 

QUESTION 122

DRAG DROP

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Correct Answer:

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QUESTION 123

Refer to the exhibit. What is the best way to resolve this issue?

 

clip_image006

 

A.

Install a publicity signed wildcard certificate by a well-known CA on the RADIUS server

B.

Disable certificate checks on the client.

C.

Use the certificate authority on the Cisco identity services Engine.

D.

Install a publicly signed server certificate by a well-known CA on the RADIUS server

 

Correct Answer: A

 

 

QUESTION 124

Refer the exhibit. Wireless voice users on VLAN 2150 report poor voice quality during heavy network usage.The WLC is configured correctly. Given the configuration in the exhibit,which possible cause of the problem is true?

 

clip_image008

 

A.

MLSQoS is not enabled on the switch.

B.

VLAN 2150 is not allowed on the trunkport of the switch

C.

The WLC switch port dose not trust CoS values for Voice traffic that traverses the WLC

D.

The wireless voice VLAN does not have the proper QoS settings.

 

Correct Answer: C

 

 

QUESTION 125

Which two statement about a Cisco WLC (5500/7500/8500 Series/WiSM-2) High Availability setup running code 8.0 are true? (Choose two)

 

A.

Certificates are downloaded only to the primary WLC, which then pushes them to the secondary instance

B.

You can have one active WLC and multiple standby-hot

C.

It is possible to achieve HA between two Cisco Wireless Services Module 2 (WiSM2) platforms only if the controllers have been deployed on a single chassis

D.

Enabling HA requires only a reboot of the primary controller

E.

Before you enable HA, ensure that both controllers are physically connected through the redundant port using an Ethernet cable

F.

The IP addres
ses of the redundancy management interface and the management interface must be in the same subnet for the primary and secondary Cisco WLCs

 

Correct Answer: EF

 

 

QUESTION 126

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.

 

Correct Answer: AC

 

 

QUESTION 127

Which two option are new feature that are supported by IGMPv3 Compared to IGMPv2? (Choose two)

 

A.

It adds support for IGMP Leave Message

B.

Routers can now send a group-specific query

C.

It extends IGMP, which allows for an explicit maximum response time field

D.

It supports the link local address 224.0.0.22, which is the destination IP address for membership reports

E.

It adds support for source filtering

 

Correct Answer: BE

 

 

QUESTION 128

Your customer is having wireless VoIP problems. When the Cisco 7925 phones roam from AP1 to 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 .

 

Correct Answer: B

 

 

QUESTION 129

Which of the following organizations certifies WLAN product compatibility and interoperability between vendors by providing certification testing?

 

A.

CCX

B.

ETSI

C.

FCC

D.

IEEE

E.

Wi-Fi Alliance

Correct Answer: E

 

 

QUESTION 130

DRAG DROP

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Correct Answer:

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