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2021 Nov dt 355 wattstopper dw-200:

Q121. Which statement best describes the ability of a wireless client to access and transmit a data frame to an AP? 

A. The client listens to the media until polled by the AP using PCF to send its data. 

B. The client listens to the media until a data frame is finished, at which time it transmits, unless a collision of data frames has occurred. 

C. The client uses random countdown timers to start the transmission of a data frame. 

D. The client listens to the media and countdown timers to start the transmission of a data frame. 

Answer:


Q122. What is an interferer that an engineer may see in Cisco CleanAir? 

A. microwave ovens 

B. rogue APs 

C. malicious clients 

D. co-channel interference 

Answer:


Q123. What 802.1x role is responsible for moving a port to the authorized state? 

A. Supplicant 

B. Authenticator 

C. Authentication Server 

D. RADIUS Server 

Answer:


Q124. Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR? 

A. channel aggregation 

B. spatial multiplexing 

C. MAC layer efficiency 

D. TxBF 

E. MRC 

F. MCS 

Answer:


Q125. You are in a coffee shop and you have connected to their wireless hot-spot. Your Windows 7 wireless client shows five green bars with a yellow shield. 

Which statement about the level of signal strength and the WLAN security that is present is true? 

A. You have excellent signal strength and a secure network connection. 

B. Your wireless client needs a username and password before it can connect to the WLAN. 

C. You have excellent signal strength and the client is waiting for you to enter a username and password. 

D. Your laptop is not receiving a signal. 

E. Your laptop is receiving an excellent signal and the network security is open. 

Answer:


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Q126. An enterprise needs their iPhones to connect to the EAP-TLS network. How should the devices be configured? 

A. push profile and certificate through Configuration Utility 

B. configure directly through Settings application 

C. email certificate to device then configure through Settings application 

D. download certificate from web page then configure through Settings application 

E. push profile and certificate through iTunes 

Answer:


Q127. When adding a controller to manage through Cisco WCS, which address type is used and which SNMP function does the Cisco WCS perform? 

A. The controller is managed through its MAC address and the Cisco WCS acts as a SNMP TRAP authenticator. 

B. The IP address of the controller is used and the Cisco WCS acts as a SNMP TRAP receiver. 

C. The controller is managed through its MAC address and the Cisco WCS acts as a SNMP agent. 

D. The controller connects through its MAC address to the Cisco WCS and the Cisco WCS uses the SNMP to manage the controller for all configured SNMP parameters. 

Answer:


Q128. When a wireless client is authenticated in a controller-based wireless network, which three pieces of source identification information can be used by the controller for an Access-Request message that is sent to an external RADIUS server? (Choose three.) 

A. wireless client IP address 

B. controller IP address 

C. AP IP address 

D. wireless client MAC address 

E. controller MAC address 

F. AP MAC address 

Answer: B,E,F 


Q129. An access point is currently transmitting at 4 mW. The customer needs to increase its signal strength by 6 dB to create a larger wireless cell. What should the new transmit power be? 

A. 8 mW 

B. 10 mW 

C. 12 mW 

D. 16 mW 

E. 24 mW 

Answer:


Q130. Refer to the exhibit. 

A customer has enabled the primary DNS server to return the correct controller IP address in response to a CISCO-CAPWAP-CONTROLLER.localdomain request coming from new access points associating to the wireless network. The access points seem to still be receiving the wrong IP address and cannot associate to the primary controller. 

Why are the access points receiving the wrong IP information? 

A. The DHCP option 43 has an incorrect controller IP address configured. 

B. The DNS server must be configured to respond to CISCO-LWAPP-CONTROLLER.localdomain request. 

C. The controller and wireless action point need to be Layer 2 adjacent. 

D. The controller must be configured for DHCP option 15 request. 

Answer: