Cisco 400-351 Online Practice Questions and Exam Preparation

Cisco 400-351 Online Questions & Answers

• Question 91:

  What is the primary purpose of trickle timers in RPL?

  A. Trickle timers control the frequency of DIO update messages towards the root of the DODAG tree
  B. Trickle timers are used to refresh the Latency object every 15 seconds
  C. Trickle timers control the frequency of DAO-ACK messages towards the root of the DODAG tree
  D. Trickle timers are used to suppress redundant messages.
  A. Trickle timers control the frequency of DIO update messages towards the root of the DODAG tree

• Question 92:

  In which direction does Application Visibility and Control mark the DSCP value of the original packet in the wireless LAN controller?

  A. In both directions, upstream and downstream.
  B. In one direction, downstream only.
  C. In one configured direction, either upstream or downstream.
  D. In one direction, upstream only.
  A. In both directions, upstream and downstream.

• Question 93:

  Which Cisco WLC configuration option should be used if you do not want to require guest user to re authenticate via local web authentication when their device has not been associated to the cisco WLC for a longer period?

  A. Condition Web Redirect
  B. Client user idle timeout
  C. Session Timeout
  D. Sleeping Client
  D. Sleeping Client

• Question 94:

  You troubleshoot the switch that a WLC is connected to and find that some VLANs were missing and the wireless clients did not receive IP details. Which VTP mode must be configured on the switch for the switch to receive the VLAN details automatically from the central switch?

  A. off
  B. transparent mode
  C. client mode
  D. server mode
  C. client mode

• Question 95:

  Which action is needed to edit the settings of an RF profile?

  A. If the RF profile has been applied to multiple AP Groups, remove the desired RF profile from just the AP group that affects the APs whose RF behavior you want to see modified.
  B. RF profiles cannot be edited. They must be removed and recreated with the desired values.
  C. Disable the network that will be affected by the changes that you will be making either for 802.11a or 802.11b.
  D. Disable custom power level settings for all APs within the group to which the profile linked.
  C. Disable the network that will be affected by the changes that you will be making either for 802.11a or 802.11b.

• Question 96:

  A wireless engineer has just completed the configuration of client provisioning in Cisco ISE. During testing, when clients attempt to connect, they receive a warning message indicating that they are unable to download provisioning resources.

  What is the root cause of this problem?

  A. Accounting is disabled on the WLC for this RADIUS server.
  B. The WLC needs to be configured with the ISE details.
  C. The OS version of the device is unsupported.
  D. Client provisioning is disabled.
  D. Client provisioning is disabled.

• Question 97:

  which two types of interface events are common for cleanAir?(choose two)

  A. Microwave interference
  B. Co-channel interference
  C. Spontaneous interference
  D. Persistent mterference
  C. Spontaneous interference
  D. Persistent mterference

• Question 98:

  A newly installed autonomous access point is tested, and an issue is found with multicast packets.

  When walking around, the wireless cfient misses some packets. Why do clients at the edge of the cell fail to receive multicast packets?

  A. multicast packets are not retransmitted at the MAC layer
  B. multicast frames are not retransmitted at the network layer
  C. multicast packets are not retransmitted at the network layer
  D. multicast frames are not retransmitted at the MAC layer
  D. multicast frames are not retransmitted at the MAC layer

• Question 99:

  Which statement about deploying web authentication within a Cisco Unified (AireOS controllers) wireless solution is true?

  A. When configuring Layer3 security, the controller forwards DNS traffic to and from wireless clients prior to authentication in absence of an explicit deny rule for DNS traffic in the pre-auth ACL.
  B. When doing local web authentication, the user must obtain an IP address and must be able to resolve the WLC hostname.
  C. When configuring a WLAN for local web authentication you must configure a pre-auth ACL to allow DNS traffic.
  D. When configring a WLAN for local web authentication you must use the WLC login page.
  D. When configring a WLAN for local web authentication you must use the WLC login page.

• Question 100:

  Your customer has a Cisco Unified Wireless Network running AireOS 8.0 and wants to learn about the FlexConnect mode that is available on his APs. Which two statements are true? (Choose two.)

  A. A newly connected AP can be booted in FlexConnect mode.
  B. When an AP is changed from Local mode to FlexConnect mode, a reboot is required.
  C. Enhanced FlexConnect mode allows to enable wIPS on FlexConnect APs.
  D. When an AP is changed from Local mode to FlexConnect mode, reboot is not required.
  E. Using CCKM with FlexConnect APs requires the use of FlexConnect Groups.
  F. FlexConnect was previously know as "H-TEEP"
  D. When an AP is changed from Local mode to FlexConnect mode, reboot is not required.
  E. Using CCKM with FlexConnect APs requires the use of FlexConnect Groups.