Cisco 400-351 Online Practice Questions and Exam Preparation

Cisco 400-351 Online Questions & Answers

• Question 321:

  With RF group "auto mode", the Cisco WLCs dynamically form an RF neighborhood and elect an RF group leader to maintain a master power and channel scheme for the group. For this to work, access points on different Cisco WLCs must

  hear validated neighbor messages at a minimal signal strength.

  What is the minimum signal strength?

  A. -67 dBm
  B. -70 dBm
  C. -80 dBm
  D. -90 dBm
  C. -80 dBm

• Question 322:

  In Cisco Wireless LAN Controller .the transmit power level of an AP radio is assigned an integer value inserted of a value in mW or dBm. Which two statements about the power level are true (Choose two)

  A. The integer corresponds to a power level that vanes depending on the regulatory domain in which the access points are deployed
  B. Each successive lower power level always represents 50% of the previous power level.
  C. Power Level 1 is always the minimum power level allowed per country code setting.
  D. There are always eight power levels for configuration.
  A. The integer corresponds to a power level that vanes depending on the regulatory domain in which the access points are deployed
  B. Each successive lower power level always represents 50% of the previous power level.

• Question 323:

  Refer to the exhibit. Which two statements about this output are true? (Choose two.)

  

  A. Unclassified traffic belongs to the traffic class default, and packets in this class are treated as FIFO.
  B. For traffic to match class1, the traffic that is being evaluated must match one of the specified criteria.
  C. For traffic to match class1, the traffic that is being evaluated must match both of the specified criteria.
  D. Unclassified traffic will be dropped because no default class is created.
  B. For traffic to match class1, the traffic that is being evaluated must match one of the specified criteria.

• Question 324:

  

  Refer to the exhibit. You are troubleshooting location accuracy problems on a customer deployment. You have done the wireless design and you are sure that the APs are correctly placed on the Cisco Prime map. Everything is correctly synchronized between WLC, PI, and MSE but you are sometimes getting elements tracked on the wrong floor. After you get this debug output from MSE, which step is next?

  A. Reduce the confidence level on MSE when the last heard value is higher than 150 seconds.
  B. Run a new calibration model and ensure that it is applied on the floor.
  C. Discard RSSI values lower than ?75 dbm.
  D. Check it the AP with MAC address 001c 0f 4c 45 60 is physically located on the floor where the element was wrongly located and if the inter-floor attenuation is weak.
  A. Reduce the confidence level on MSE when the last heard value is higher than 150 seconds.

• Question 325:

  Which statement about NTP on a Cisco Wireless LAN Controller is true?

  A. If your wIPS deployment consists of Cisco APs, WLC, and MSE, you must set all the three entities to the UTC time zone.
  B. You cannot configure an authentication channel between the WLC and the NTP server.
  C. You can enter an IPv4 or an IPv6 address when configuring the NTP/SNTP server but, you cannot use the fully qualified domain name (FQDN) of the server.
  D. Wrong date and time on the WLC has no effect to the AP joining process.
  C. You can enter an IPv4 or an IPv6 address when configuring the NTP/SNTP server but, you cannot use the fully qualified domain name (FQDN) of the server.

• Question 326:

  Refer to the exhibit.

  

  A network administrator has configured dot1X credentials for access points in the WLC and, after this, enabled dot1X in all the 3750-X access switches. Given the switch access port configuration shown in the exhibit, which action is the result if the back-end RADIUS server becomes unreachable?

  A. If the back-end RADIUS is not reachable, the switch detects AP via Cisco Discovery Protocol and assigns it to the access VLAN, as a trusted device, to mitigate service loss.
  B. If the back-end RADIUS is not reachable, access points are authorized to VLAN 112 due to server no-response event.
  C. If the back-end RADIUS is not reachable, authentication fails and the access points are placed in VLAN 111.
  D. If the back-end RADIUS is not reachable, access points are assigned to VLAN 113.
  D. If the back-end RADIUS is not reachable, access points are assigned to VLAN 113.

• Question 327:

  DRAG DROP

  Drag and drop the CAPWAP events on the left into the order in which they occur on the right during the WLC discovery and join processes.

  Select and Place:

  

  

• Question 328:

  Which three statements about QoS handling on Cisco IOS access points are true? (Choose three.)

  A. Access points support only 802.1Q/P tagged packets.
  B. Access points carry out EDCF like queuing on the radio ingress port only.
  C. Access points carry out EDCF like queuing on the radio egress port only.
  D. Access points classify packets; they do not prioritize packets based on DSCP value.
  E. Access points do not classify packets; they prioritize packets based on DSCP value.
  F. Access points support only 802.1Q/P tagged packets and ISL encapsulation.
  A. Access points support only 802.1Q/P tagged packets.
  C. Access points carry out EDCF like queuing on the radio egress port only.
  E. Access points do not classify packets; they prioritize packets based on DSCP value.

• Question 329:

  You are troubleshooting an autonomous access point, where the AP is reachable but the wireless clients are connecting without receiving an IP address. The BVI interface is set to VLAN 10 and the WLAN to VLAN 20. Which option is the issue?

  A. The switch port that the AP is connected to is a trunk port, and it has been configured to allow VLAN 20.
  B. The switch port that the AP is connected to is an access port on VLAN 10.
  C. The AP must be configured to use the mbssid command to support multiple VLANs.
  D. The AP must be upgraded to support multiple VLANs.
  B. The switch port that the AP is connected to is an access port on VLAN 10.

• Question 330:

  A wireless engineer is trying to implement LAG on the WLC. The engineer has copied a working EtherChannel configuration that connects two switches. However, after applying the configuration to the switch ports where the WLC connects, the EthernetChannel still shows as down. To which mode must the EtherChannel be set to fix the issue?

  A. auto
  B. desirable
  C. silent
  D. on
  D. on