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HP Exam HPE7-A01 Topic 10 Question 33 Discussion

Actual exam question for HP's HPE7-A01 exam
Question #: 33
Topic #: 10
[All HPE7-A01 Questions]

For the Aruba CX 6400 switch, what does virtual output queueing (VOQ) implement that is different from most typical campus switches?

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Suggested Answer: A

The Aruba CX 6400 switch is a modular switch that supports high-performance and high-density Ethernet switching for campus and data center networks. One of the features that distinguishes the Aruba CX 6400 switch from most typical campus switches is virtual output queueing (VOQ).VOQ is a technique that implements large ingress packet buffers on each port to prevent head-of-line blocking and packet loss due to congestion2.VOQ allows each port to have multiple queues for different output ports and prioritize packets based on their destination and QoS class2.VOQ enables the Aruba CX 6400 switch to achieve high throughput and low latency for various traffic types and scenarios. Reference:2https://www.arubanetworks.com/assets/ds/DS_CX6400Series.pdf


by Marylin at Nov 13, 2024, 05:17 AM

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Meghann
27 days ago
Personally, I'm leaning towards A. Large ingress buffers can absorb traffic bursts and smooth out the flow to the egress ports.
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Shayne
7 days ago
I agree, large ingress buffers can definitely help with smoothing out traffic flow.
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Graciela
8 days ago
I think A makes sense, it helps with traffic bursts.
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Taryn
1 months ago
I'm not sure, but I think it might be C) per port ASICs.
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Veda
1 months ago
I agree with Emerson, VOQ in Aruba CX 6400 switch uses large ingress packet buffers.
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Margart
2 months ago
Hold up, is this a trick question? Virtual output queueing sounds like something from the future, not a typical campus switch!
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Penney
2 months ago
Hmm, I'm going with D. VSX is a feature that allows two switches to act as one, so it could be related to virtual output queueing.
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Precious
25 days ago
I agree with you, D) VSX sounds like it could be related to virtual output queueing.
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Aleta
26 days ago
I'm leaning towards C) per port ASICs.
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Maybelle
1 months ago
I think A) large ingress packet buffers is the correct answer.
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Florinda
2 months ago
I think it's got to be C. Per port ASICs help scale the switch and handle more concurrent traffic flows.
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Matthew
20 days ago
D) VSX
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Burma
21 days ago
C) per port ASICs
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Eura
29 days ago
B) large egress packet buffers
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Daren
1 months ago
A) large ingress packet buffers
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Emerson
2 months ago
I think the answer is A) large ingress packet buffers.
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Geraldine
2 months ago
Option B sounds right. Large egress buffers help handle congestion and avoid packet drops.
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Ariel
29 days ago
C) per port ASICs
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Louvenia
1 months ago
Option B sounds right. Large egress buffers help handle congestion and avoid packet drops.
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Cassie
1 months ago
B) large egress packet buffers
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Latanya
1 months ago
A) large ingress packet buffers
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