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Cisco 300-420 Exam - Topic 1 Question 40 Discussion

A network engineer is redesigning a company's QoS solution. The company is currently using IP Precedence, but the engineer plans to move to DiffServ. It is important that the new solution provide backward compatibility with the current solution. Which technology should the design include?
C) class selector code points
A) expedited forwarding
B) assured forwarding
D) default per hop behavior

Cisco 300-420 Exam - Topic 1 Question 40 Discussion

Actual exam question for Cisco's 300-420 exam
Question #: 40
Topic #: 1
[All 300-420 Questions]

A network engineer is redesigning a company's QoS solution. The company is currently using IP Precedence, but the engineer plans to move to DiffServ. It is important that the new solution provide backward compatibility with the current solution. Which technology should the design include?

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Suggested Answer: C

by Minna at May 03, 2022, 09:08 PM

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Veronika
10 months ago
I thought expedited forwarding was the standard for this kind of upgrade!
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Marjory
10 months ago
Assured forwarding could also work, but not as well as class selectors.
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Jenelle
11 months ago
Wait, are we sure that’s the best option?
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Marquetta
11 months ago
I agree, class selectors make sense here.
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Laura
11 months ago
Class selector code points are the way to go for backward compatibility!
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Domingo
11 months ago
Okay, got it. The key is to upload the activity data from the Excel sheet and then use process mining to discover inefficiencies. Seems like a good approach to meet the stated goal.
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Ernie
11 months ago
I'm pretty confident about this one. The Serializable interface doesn't have any methods that need to be overridden, so the answer is D - nothing. The serialization process is handled automatically by the JVM.
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