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Cisco® 300-430 Exam Practice Questions (P. 3)

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Question #21
A network engineer wants to implement QoS across the network that supports multiple VLANs. All the APs are connected to switch ports and are configured in local mode. Which trust model must be configured on the switch ports to which the APs are connected?
  1. A
    CoS
  2. B
    WMM UP
  3. C
    DSCP
  4. D
    IPP

Correct Answer:
C

Question #22
An enterprise started using WebEx as a virtual meeting solution. There is a concern that the existing wireless network will not be able to support the increased amount of traffic as a result of using WebEx. An engineer needs to remark the QoS value for this application to ensure high quality in meetings. What must be implemented to accomplish this task?
  1. A
    QoS preferred call index
  2. B
    UP to DSCP map
  3. C
    AVC profiles
  4. D
    WLAN quality of service profile

Correct Answer:
C
Reference:
https://www.ciscolive.com/c/dam/r/ciscolive/apjc/docs/2018/pdf/BRKEWN-3003.pdf

Question #23
A corporation has a wireless network where all access points are configured in FlexConnect. The WLC has a Data WLAN and a VoWiFi WLAN implemented where centrally-switched SSID is configured for the APs. Which QoS configuration must be implemented for the wireless packets to maintain the marking across the wired and wireless network?
  1. A
    Set QoS to Platinum.
  2. B
    Enable CAC.
  3. C
    Allow WMM.
  4. D
    Trust DSCP.

Correct Answer:
D

Question #24
A company is collecting the requirements for an on-premises event. During the event, a wireless client connected to a dedicated WLAN will run a video application that will need on average 391595179 bits per second to function properly. What is the QoS marking that needs to be applied to that WLAN?
  1. A
    Platinum
  2. B
    Gold
  3. C
    Silver
  4. D
    Bronze

Correct Answer:
B

Question #25

Refer to the exhibit. Which two items must be supported on the VoWLAN phones to take full advantage of this WLAN configuration? (Choose two.)
  1. A
    TSPEC
  2. B
    SIFS
  3. C
    802.11e
  4. D
    WMM
  5. E
    APSD

Correct Answer:
CD

Question #26
An engineer must use Cisco AVC on a Cisco WLC to prioritize Cisco IP cameras that use the wireless network. Which element do you configure in a rule?
  1. A
    permit-ACL
  2. B
    WMM required
  3. C
    mark
  4. D
    rate-limit

Correct Answer:
C

Question #27
An IT administrator is managing a wireless network in which most devices are Apple iOS. A QoS issue must be addressed on the WLANs. Which configuration must be performed?
  1. A
    Enable Fastlane globally under Wireless > Access Points > Global Configuration.
  2. B
    Create a new AVC Profile named AUTOQOS-AVC-PROFILE and apply to all WLANs.
  3. C
    Enable Fastlane under each WLAN setting.
  4. D
    Enable WMM TSPEC/TCLAS negotiation under Wireless > Advanced.

Correct Answer:
C
Reference:
https://www.cisco.com/c/dam/en/us/td/docs/wireless/controller/technotes/8-3/Optimizing_WiFi_Connectivity_and_Prioritizing_Business_Apps.pdf

Question #28
What is the Cisco recommended configuration for a Cisco switch port connected to an AP in local mode for optimal voice over WLAN performance with an 8821 wireless phone?
  1. A
    switchport encapsulation dot1q switchport mode trunk mls qos trust device cisco-phone
  2. B
    switchport mode access mls qos trust device cisco-phone
  3. C
    switchport mode access mls qos trust cos
  4. D
    switchport mode access mls qos trust dscp

Correct Answer: D ?️

Question #29
An engineer has configured Media Stream on the WLC and must guarantee at least 2 Mbps stream per user. Which RRC template should the engineer use?
  1. A
    coarse
  2. B
    medium
  3. C
    low
  4. D
    ordinary

Correct Answer:
B
Reference:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/ b_cg74_CONSOLIDATED_chapter_0101010.html

Question #30
Refer to the exhibit.

Which COS to DSCP map must be modified to ensure that voice traffic is tagged correctly as it traverses the network?
  1. A
    COS of 6 to DSCP 46
  2. B
    COS of 3 to DSCP 26
  3. C
    COS of 7 to DSCP 48
  4. D
    COS of 5 to DSCP 46

Correct Answer:
D

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