CWNP CWNA-109 Exam - Topic 5 Question 5 Discussion

Actual exam question for CWNP's CWNA-109 exam

Question #: 5
Topic #: 5

ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you to perform the RF site survey. During the interview with the network manager, you are told that the new Ethernet edge switches will support VoIP phones and 802.11 access points, both using 802.3 PoE.

After hearing this information, what immediate concerns do you note?

AThe power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.

BThe edge Ethernet switches should support Ether-channel to get the best results out of the network.

CVoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.

DIf the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs

Show Suggested Answer

Suggested Answer: A

An immediate concern that you note after hearing this information is thatthe power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices. PoE stands for Power over Ethernet and is a technology that allows Ethernet switches to deliver power along with data to devices such as VoIP phones and 802.11 access points. PoE devices are classified into different classes based on their power consumption and output. The edge switches have a limited power budget that determines how many PoE devices they can support simultaneously. If the power budget is exceeded, some PoE devices may not receive enough power or may shut down unexpectedly. Therefore, it is important to plan and monitor the power budget in the edge switches based on the number and class of PoE devices connected to them. Using Ether-channel, placing switches in optimal locations, or avoiding distortion are not immediate concerns related to PoE devices.Reference:[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 234; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 224.

by Rodolfo at Jun 24, 2024, 12:42 PM

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Jackie

3 months ago

Not sure about the placement issue; can't they work together?

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Mitsue

3 months ago

Ether-channel support is a must for better performance!

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Denny

3 months ago

Wait, can VoIP and Wi-Fi really cause distortion if on the same switch?

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Delsie

4 months ago

I agree, power management is crucial here.

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Cyril

4 months ago

Definitely need to plan the power budget for PoE devices!

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Samira

4 months ago

I feel like Ether-channel could be beneficial, but I can't recall if it's essential for this scenario. It might help with bandwidth, though.

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Micaela

4 months ago

I practiced a similar question about switch placement and VoIP quality. I think the location of the switches really matters for both devices.

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Wilda

4 months ago

I'm not entirely sure, but I think powering VoIP phones and access points from the same switch could lead to some interference issues.

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Mitsue

5 months ago

I remember we discussed the importance of the power budget for PoE devices in class. It seems like a critical factor here.

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James

5 months ago

Separating the VoIP phones and APs onto different switches is an interesting idea. I'll need to look into any potential interference or distortion issues between the two device types.

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Leana

5 months ago

Hmm, I'm not sure about the Ether-channel recommendation. That might be overkill for this setup. I'd focus more on ensuring the switch ports can handle the combined throughput of the VoIP and wireless traffic.

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Myong

5 months ago

The power budget is definitely going to be a key concern here. I'll need to carefully calculate the power requirements for all the PoE devices to ensure the switches can handle the load.

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Cassandra

5 months ago

Good point about the switch locations. The optimal spots for the VoIP phones may not be ideal for the wireless coverage. I'll need to carefully plan the AP placement to get the best overall network performance.

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Willis

5 months ago

I remember a practice question where it was emphasized that we should first gather evidence discreetly before jumping to conclusions.

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Shannan

5 months ago

I'm a bit confused by the wording of these options. I'll need to take my time and make sure I understand what each one is asking before I select my answers.

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Dawne

5 months ago

Hmm, I'm not entirely sure about this one. I'll need to think it through carefully and consider the different options.

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Joseph

5 months ago

Ah, I've seen this type of question before. The key is to create an HTTP profile and assign it to the right place.

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Tenesha

5 months ago

Hmm, I'm not sure about this one. I'll need to review the group policy settings again to make sure I understand how to prevent lower-level policies from overriding the new one.

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Nana

2 years ago

I'm just wondering, do these switches come with a built-in crystal ball to predict the future power needs? Seriously, that power budget planning is going to be crucial!

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Camellia

2 years ago

Haha, good luck finding the 'optimal' switch locations that work for both VoIP and wireless! Sounds like the network manager is in for some serious trial and error on that one.

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Alise

1 year ago

Haha, good luck finding the 'optimal' switch locations that work for both VoIP and wireless! Sounds like the network manager is in for some serious trial and error on that one.

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Werner

2 years ago

B) The edge Ethernet switches should support Ether-channel to get the best results out of the network.

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Dortha

2 years ago

A) The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.

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Ailene

2 years ago

Haha, good luck finding the 'optimal' switch locations that work for both VoIP and wireless! Sounds like the network manager is in for some serious trial and error on that one.

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Ty

2 years ago

B) The edge Ethernet switches should support Ether-channel to get the best results out of the network.

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Tammy

2 years ago

A) The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.

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Annmarie

2 years ago

I see your point, Timothy. It's important to consider the optimal locations for both devices.

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Bobbie

2 years ago

Putting VoIP phones and APs on the same switches? That's a recipe for disaster! The distortion and interference issues could be a real headache. Definitely need to separate them onto different switches.

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Bev

2 years ago

C) VoIP phones and 802.11 access points should not be powered by the same edge switch due to distortion.

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Wava

2 years ago

A) The power budget in the edge switches must be carefully planned and monitored based on the number of supported PoE devices.

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Edna

2 years ago

Ether-channel is a great idea to get the most out of the network! Combining multiple links for increased bandwidth and redundancy will really help handle the increased traffic from the VoIP and wireless devices.

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Timothy

2 years ago

D) If the switches are in optimal locations for VoIP phones, they are likely to be suboptimal locations for 802.11 APs.

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Ashley

2 years ago

The power budget is definitely the biggest concern here. With VoIP phones and 802.11 APs sharing the same PoE switches, the network manager needs to be really careful in planning and monitoring the power requirements.

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