NEW QUESTION 1
Which feature should a network engineer enable within a mixed-client network to ensure that the legacy client operates at the best possible rates?

• A. ClientLink
• B. RRM
• C. DCA
• D. Band Select

Answer: A

Explanation:
In mixed client environments, 802.11a/g clients may delay communications for 802.11n clients and reduce overall system performance. Organizations can improve the reliability and coverage for legacy 802.11a/g clients, assist these clients in operating at the best possible rates, and help ensure that
these legacy clients get on and off the wireless network faster by implementing Cisco ClientLink. Cisco ClientLink is easily enabled through the wireless LAN controller or Cisco Wireless Control System (WCS) control panel.

NEW QUESTION 2
Refer to the exhibit.

Which statement describes how the Band Select feature works on the wireless controller?

• A. The access point uses the load balancing feature to move the clients to 5 Ghz.
• B. The access point changes the DTIM period on the 2 4 Ghz band.
• C. The access point recommends the band in the association response to the client.
• D. The access point ignores and delays the probe request of the client on the 2 4 Gh

Answer: C

NEW QUESTION 3
Scenario
The big Engineering IT team has been in the lab to test some new features that the existing network does not support. The AP Groups, AP Failover, and Local Web Auth features are having problems. In this test environment, the controllers support the only Composite Structural Engineering and Aerodynamic Engineering groups. All SSIDs must omit the department name.
Refer to the exhibit. The diagram is the floor plan for the Big Engineering office and the distribution of the departments. These tables show how the controllers have been configured.
Note, not all menu items, text boxes, or radio buttions are active.

BE-GA
Controller Management Interfaces

Composite and Structural Engineering (CSE) WLANs

AP Groups-CSE-WLANs

AE-User Names and Passwords

You review the configuration of the test network controller. Which four changes must be made to resolve the problems? (Choose four.)
When you review the configuration of the test network controller what needs to be changed to resolve the problems? (Choose four.)

• A. Change the High Availability Primary Controller Management Interface IP address.
• B. Remove the current WLANs and replace them with WLANs that have the same SSID names as on the AE-2504A controller.
• C. Add the Local Net User names and passwords
• D. Change the Layer 2 security to none and Layer 3 Security to Web Policy for the CSE-Contractors WLAN
• E. Remove me current WLAN from the CSE-WLAN AP Group and add all three of the WLANs configured in the CSE-2504A
• F. Add the CSE APs to the CSE-WLANs AP-Grou

Answer: BCDF

NEW QUESTION 4
The AP is unable to join the controller. What is the cause of this error? Refer to the exhibit.

• A. The controller code version is lower than the code of the AP attempting to join.
• B. AP code is not the same as the controller and must download firmware.
• C. AP model % not compatible with the controller code version.
• D. The AP is riot conjured in the controller auth-list of acceptable AP

Answer: C

NEW QUESTION 5
A company consists of two adjacent buildings, each with its own Cisco 5508 Wireless Controller with APs joined to the controller in the building. The two controllers are configured identically except for interface IP addresses. Only one SSID is being used in both buildings. The clients in building A are not experiencing any connectivity issues, but (he clients in building B report poor connections An
engineer performs a site survey and finds co-channel interference, yet discovers mac Transmit Power Control was never performed on the APs and that Radio Resource Management is not functioning like it does in building A Furthermore, the controllers are in the same RF group and controller A is elected RF leader Which action will improve client connections in building B?

• A. Ensure WMM is enabled on the SSID.
• B. Manually select controller B as RF group leader.
• C. Configure controller B to be in a separate RF group.
• D. Doable the low data rates on the a radio and the b/g radio in building

Answer: C

NEW QUESTION 6
An engineer uses the shutdown and no shutdown commands on a switch port that an access point is connected to because the AP had disassociated. These commands usually resolve the issue.
Which troubleshooting methodology does this demonstrate?

• A. bottom-up
• B. top-down
• C. divide and conquer
• D. shoot from the hip

Answer: D

NEW QUESTION 7
You have designed your wireless network for data coverage. However, as 5 GHz device a client??s increase over legacy 2.4 GHz devices, you observe roaming issues and instability of wireless communication for the newest devices.
Which element will cause this issue?

• A. You have designed for data coverage, but you need a voice design to accommodate 5 GHz devices.
• B. Band Select is ON and steers clients to connect to 2.4 GHZ over 5 GHz.
• C. RRM is ON and favors 2.4 GHz legacy devices.
• D. 5 GHz cell size is smaller than 2.4 GHz cell size, which results in inadequate overlap for 5 GHz clients.

Answer: B

NEW QUESTION 8
An engineer is attempting to resolve wireless channel overlap issues in the 2.4 GHz network. Which network change reduces channel overlap?

• A. Shut down 802.11b/g/n radios.
• B. Enable 40 MHz channel bonding on 802.11b/g/n.
• C. Enable 802.11b data rates.
• D. Enable all 802.11b/g/n channel

Answer: D

NEW QUESTION 9
Which modulation, which was introduced in 802.11ac standard, influences end-user experience by providing the highest data rates and throughput?

• A. 256 QAM
• B. QPSK
• C. 16 QAM
• D. 64 QAM

Answer: A

NEW QUESTION 10
Refer to the exhibit.
Why did Client 00:25:84:61:92:7d not get a response from the RADIUS server?

• A. The RADIUS server rejected the username that was provided by the client.
• B. The shared-secret keys on the controller and on the RADIUS server do not match.
• C. The wireless controller does not have IP connectivity to the RADIUS server.
• D. The client and the RADIUS server did not agree on the EAP type so the RADIUS server dropped the packet.

Answer: B

NEW QUESTION 11
A client is failing EAP authentication and a debug shows that the server is sending an Access-Reject message. Which action must you take to resolve authentication?

• A. Verify that the Validate server certificate on the client is disabled.
• B. Verify that the client certificates are from the proper CA and server certificate.
• C. Verify that the client server certificate has the proper Windows OlDs.
• D. Verify that the user account is the same in the client certificate.
• E. Verify that the user is using the same password that is on the server

Answer: B

NEW QUESTION 12
A user reports being unable to connect to a server with a certain program while connected to
wireless. Wh.ch troubleshooting methodology can be used to begin the troubleshooting process?

• A. top-down
• B. shoot from the hip
• C. follow the path
• D. bottom-up
• E. divide and conquer

Answer: A

NEW QUESTION 13
While reviewing CleanAir data in Cisco Prime Infrastructure, an engineer notices that a wideband jammer is not sending its Interferer Security Trap correctly. The engineer determines that the default seventy level has been changed. Which value does the engineer select to reset the seventy level to its factory setting?

• A. informational
• B. major
• C. minor
• D. warning
• E. critical

Answer: D

NEW QUESTION 14
When designing your wireless network for iOS devices, which two limits of packet loss and jitter ensure stable, quality communication? (Choose two.)

• A. Jitter should be kept to less than 500 ms.
• B. Packet loss should remain under 1 percent.
• C. Packet loss should remain under 5 percent.
• D. Packet loss should remain under 2 percent.
• E. Jitter should be kept to less than 100 m

Answer: BE

Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/wireless/technology/vowlan/troubleshooting/vowlan_troubleshoot/8_Site_Survey_RF_Design_Valid.pdf

NEW QUESTION 15
An engineer has discovered that a number of new access points are failing to join the wireless controller
module that has been recently enabled on a switch stack of three Cisco Catalyst 3850 switches running
3.02.03 SE version of Cisco IOS-XE. All cables have been verified and all access point switch port configurations are identical.
Which options is the likely root cause of the issue?

• A. Stacked Cisco Catalyst 3850 switches only support 100 CAPWAP termination licences.
• B. Cisco IOS-XE version 3.02.03 SE supports only access points on the master switch.
• C. The EULA has not been accepted on the switch wireless controller module.
• D. When stacked, the Cisco Catalyst 3850 cannot use the wireless controller modul

Answer: D

NEW QUESTION 16
Refer to the exhibit.


An access point joins the secondary wireless controller but not the primary wireless controller. Another access point has joined the controller and is working fine. The network engineer can ping the wireless controller and the access point from the core switch.
Which option is the cause of the issue?

• A. The trunk ports are missing a spanning tree configuration.
• B. The EtherChannel configuration is incorrect.
• C. The port channels configured with the wrong negotiation protocol.
• D. The trunk port configuration is incorrec

Answer: B

NEW QUESTION 17
Which ports require unrestricted port access for CleanAir RF spectrum analysis between the AP and Cisco Spectrum Expert?

• A. UDP 5246 and 5247
• B. UDP 37540 and 37550
• C. TCP 16113 and 16114
• D. TCP 37540 and 37550
• E. TCP 5246 and 5247
• F. UDP 16113and 16114

Answer: D

NEW QUESTION 18
Refer to the exhibit.

An engineer is troubleshooting non-802.11 interference and observes the shown output. Which interference signature is depicted?

• A. cordless phone
• B. analog video cameras
• C. microwave oven
• D. FHSS Bluetooth

Answer: B

NEW QUESTION 19
Which Cisco WLC debug command allows you to determine if the certificate process is failing in the CAPWAP messages?

• A. debug pm pki enable
• B. debug cert events enable
• C. debug capwap events enable
• D. debug capwap packet enable
• E. debug capwap errors enable

Answer: E

NEW QUESTION 20
Two 5508 Wireless Lan Controllers are managing all Access Points throughout the network The WLCs are located in different locations to provide geographical redundancy A Mobility Group has been configured on both WLCs and has a UP status on both Controllers The APs m location A are statically configured to use Controller A as the Primary and Controller B as the Secondary If the WLC in location A goes offline, the APs successfully join the WLC m location B but they do not failover to their Primary configured Controller What configuration task will fix this issue'

• A. Change the AP Failover Priority to critical.
• B. Enable AP Fallback globally on the WLC.
• C. Configure the WLC in location A as Primary using the CAPWAP AP Controller IP Address commandon all the location A Access Points.
• D. Use DHCP Option 43 and specify WLC in location A as Primar

Answer: C

NEW QUESTION 21
A wireless engineer has completed the configuration of a new WLAN on the existing Cisco wireless infrastructure. During testing he found that the wireless client's authenticate and received the
correct ip address from the switch, but they were not able to access any of the internal or external resources. Which action will resolve the issue?

• A. Configure static ip addresses for the wireless clients.
• B. Configure the default-router on the switch DHCP pool.
• C. Configure option 82 on the switch DHCP pool.
• D. Configure a dns-server on the switch DHCP poo

Answer: C

NEW QUESTION 22
Which three details are contained within the LWAPP discovery response sent by each WLC to enable the LAP to choose a WLC? (Choose three.)

• A. the controller sysName
• B. an AP-manager IP address
• C. the WLC IOS version
• D. the mobility domain name
• E. the master controller flag
• F. the DNS server address

Answer: ABE

NEW QUESTION 23
Wireless users encounter choppy VoVLAN on one floor of a building. Which troubleshooting approach will determine the cause of the issue in the least amount of time?

• A. move the problem
• B. top down
• C. shoot from the hip
• D. bottom up

Answer: A

NEW QUESTION 24
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