Exam 300-415 topic 1 question 398 discussion

Actual exam question from Cisco's 300-415

Question #: 398
Topic #: 1

The application team is getting ready to deploy a new business-critical application to the network. To protect the traffic, the network team must add another queue to the QoS map and then deploy the map to the fabric. Which configuration step must be completed prior to adding the queue to the QoS map and applying it?

A. The relationship between the new QoS class and the hardware queue must be configured from the "lists" page of the Local Policy section of vManage. The QoS map is then applied to the WAN interface.
B. The relationship between the new QoS class and the hardware queue must be configured from the "lists" page of the Local Policy section of vManage. The QoS map is then applied to the service-side interface.
C. The relationship between the new QoS class and the hardware queue must be configured from the "lists" page of the Centralized Policy section of vManage. The QoS map is then applied to the service-side interface.
D. The relationship between the new QoS class and the hardware queue must be configured from the "lists" page of the Centralized Policy section of vManage. The QoS map is then applied to the WAN interface.

Show Suggested Answer

Suggested Answer: A 🗳️

by Stanleymahamadi at March 15, 2024, 10:45 p.m.

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mikidvd51

8 months, 1 week ago

Selected Answer: C

Why A ? - Why on WAN interface? WAN interface (VPN0) traffic is being IPsec encrypted. Only QOS overall traffic shaping can be applied out there. - Why Local policy? When app is being deployed on wide client network. Not to one router only.

upvoted 1 times

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Raynecore

1 year, 1 month ago

Selected Answer: A

Map Each Forwarding Class to an Output Queue From the Cisco SD-WAN Manager menu, choose Configuration > Policies. From the Custom Options drop-down, select Lists under Localized Policy. Select the Class Map from the list types. Click the New Class List. The Class List pop-up page is displayed. Enter a name for the class. Select a required queue from the Queue drop-down list. Click Save. Repeat the last three steps to add more class lists as required. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/qos/ios-xe-17/qos-book-xe/forwarding-qos.html#Cisco_Concept.dita_aa3e0d07-462e-463f-8f45-681f38f61ab0

upvoted 1 times

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Networkchamp87

1 year, 2 months ago

Selected Answer: A

Logically approaching this answer; -It would be a local policy so that rules out C,D -You would apply the QoS on the WAN interface 99% of the time in any network as that where the bottle neck will be.

upvoted 3 times

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