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Ericsson ECP-206 Exam - Topic 5 Question 29 Discussion

Actual exam question for Ericsson's ECP-206 exam
Question #: 29
Topic #: 5
[All ECP-206 Questions]

In your network, video traffic is being marked with DSCP code AF31.

Based on industry standard practice, which code would you use to assign higher priority to VoIP traffic?

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Suggested Answer: A

The code that is commonly used to assign higher priority to VoIP traffic is EF, which stands for Expedited Forwarding. EF is a per-hop behavior (PHB) defined by the Differentiated Services (DiffServ) model for QoS. EF provides low delay, low jitter, and low loss for real-time applications such as VoIP.EF is marked by setting the DSCP value to 101110, which corresponds to decimal 4678. AF31, which stands for Assured Forwarding class 3 low drop probability, is another PHB defined by DiffServ, but it provides lower priority than EF.AF31 is marked by setting the DSCP value to 011010, which corresponds to decimal 2678. DF, which stands for Default Forwarding, is a PHB defined by DiffServ that provides best-effort service for unmarked traffic.DF is marked by setting the DSCP value to 000000, which corresponds to decimal 078. AF11, which stands for Assured Forwarding class 1 low drop probability, is another PHB defined by DiffServ, but it provides lower priority than EF and AF31.AF11 is marked by setting the DSCP value to 001010, which corresponds to decimal 1078.


by Mirta at Sep 18, 2024, 07:28 AM

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Tyisha
6 months ago
AF21 could be a decent alternative, but EF is still king!
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Annmarie
6 months ago
DF is not for VoIP, just saying.
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Mitsue
6 months ago
Wait, is EF really the best option? I thought AF might work too.
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Tanesha
7 months ago
Totally agree, EF is the standard for voice traffic!
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Lavera
7 months ago
EF is the right choice for VoIP priority.
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Brock
7 months ago
I’m a bit confused about the AF codes. I thought AF31 was already for video, so wouldn’t AF21 be a better choice for VoIP?
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Lasandra
7 months ago
I practiced a question like this before, and I believe EF is the standard for voice traffic. It just makes sense to prioritize it that way.
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Lilli
7 months ago
I’m not entirely sure, but I remember something about AF codes being for different classes of service. Maybe AF11 or AF21 could work too?
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Ellsworth
7 months ago
I think VoIP traffic should be marked with EF, right? It’s supposed to have the highest priority.
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Dorcas
7 months ago
I'm a little confused. I know DSCP codes are used for QoS, but I'm not sure how the different codes relate to each other. I'll have to review my notes on this before answering.
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Tamra
7 months ago
Okay, let's see. We're dealing with video traffic marked as AF31, and the question is asking about assigning higher priority to VoIP. Based on that, I'd say the answer is EF.
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Laurel
8 months ago
I'm a bit unsure here. I know DSCP codes are used for QoS, but I can't remember the specific codes off the top of my head. I'll have to think this through carefully.
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Viki
8 months ago
Hmm, this seems straightforward. I think the answer is EF, since that's the standard for high-priority VoIP traffic.
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Nakisha
8 months ago
I'm pretty confident the answer is EF. That's the standard DSCP code used for high-priority VoIP traffic, so it makes sense to use that here.
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Hailey
2 years ago
I'm not sure about this one. Can someone explain why EF is the best choice for prioritizing VoIP traffic over video traffic marked with AF31?
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Regenia
2 years ago
AF21? More like 'Awfully Frustrating 21' if you ask me. EF is the clear winner here.
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Gerald
2 years ago
EF is the industry standard for prioritizing VoIP traffic, so it's the clear winner.
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Shizue
2 years ago
AF21 might be frustrating, but EF is definitely the way to go for VoIP.
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Laquita
2 years ago
I agree, EF is the best choice for assigning higher priority to VoIP traffic.
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Jani
2 years ago
I agree with Gail. EF is the Expedited Forwarding codepoint, which is commonly used for VoIP traffic to ensure low latency and high quality.
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Gail
2 years ago
I think the answer is A) EF because it provides the highest priority for VoIP traffic.
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Davida
2 years ago
Hey, I heard that DF stands for 'Delicious Fries' - maybe we should just go with that for VoIP!
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Sharika
2 years ago
EF is the way to go for VoIP traffic. That's the industry standard, right?
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Nichelle
2 years ago
That's correct. EF is the code used to assign higher priority to VoIP traffic.
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Leah
2 years ago
Yes, EF is the industry standard for VoIP traffic.
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