Exam 300-425 All Questions

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Exam 300-425 topic 1 question 34 discussion

Actual exam question from Cisco's 300-425

Question #: 34
Topic #: 1

A rapidly expanding company has tasked their network engineer with wirelessly connecting a new cubicle area with Cisco workgroup bridges until the wired network is complete. Each of 42 new users has a computer and VoIP phone. How many APs for workgroup bridging must be ordered to keep cost at a minimum while connecting all devices?

A. 4
B. 5
C. 6
D. 7

Show Suggested Answer

Suggested Answer: B 🗳️

by skh at May 11, 2021, 1:39 p.m.

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skh

Highly Voted 4 years, 1 month ago

looking at the “42” number, but indeed since it mentions computer + VoIP =84 It’s 5. Workgroup bridges support 20 cliens maximum.

upvoted 14 times

RogerTheLodger

3 years, 9 months ago

That's what I thought. The question doesn't specify the type of VoIP phone, so you shouldn't assume you can connect the PC to it, and even if you could you'd only need 3 WGBs for 42.

upvoted 2 times

rrahim

3 years, 4 months ago

The question says: _wirelessly_ connecting a new cubicle area with Cisco workgroup bridges until the wired network is complete. Each of 42 new users has _a computer and VoIP phone_

upvoted 2 times

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rrahim

3 years, 3 months ago

Also the question is "How many APs for workgroup bridging" not how many WGBs. So WGBs will be connected to APs wirelessly and then phones and computers will be connected to WGBs. Some of those computers can be connected to APs wirelessly too.

upvoted 1 times

wirelessvibes

3 years, 2 months ago

Hi, the WGB AP is basically an antenna and an ethernet port. So this would connect upstream to the AP. But in this case they ask for how many APs for workgroup bridging. If max 20 clients per wgb then 5 WGB APs should be correct.

upvoted 3 times

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Farhad123

Most Recent 5 months, 1 week ago

Selected Answer: B

up to 20 wired clients are supported behind of cisco WGB

upvoted 1 times

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ShamsDimashki

10 months, 4 weeks ago

VoIP & Computer together need only 1 port

upvoted 1 times

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Valeronitro

1 year, 10 months ago

Selected Answer: A

Minimum is the key to this answer

upvoted 1 times

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CyborgXCZ

2 years, 4 months ago

Selected Answer: B

The answer should be B. This is from the deployment guide.. A Cisco WGB provides information about its wired clients via Internet Access Point Protocol (IAPP) messaging. This enables the wireless infrastructure to know the MAC addresses of the WGB’s wired clients. Up to 20 wired clients are supported behind a Cisco WGB. https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-1/configuration-guide/b_cg81/workgroup_bridges.pdf Since each user will consume 2 clients (PC/IP Phone) and we have 48 Users we will need minimum of 5x AP's to support 84 Clients

upvoted 3 times

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FabriG

2 years, 5 months ago

Selected Answer: B

According to Cisco ENWLSD Course, it is B. WGBs support up to 20 clients.

upvoted 2 times

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JONATHGA

3 years ago

Selected Answer: B

a WGB is used to provide access to the network through wireless to a device that doesn't have wireless capability, so if they want to use APs on WGB mode, we could assume that the laptops and VoIP phones are not wifi capable, so they will use the ethernet port of the AP to connect to the network. An AP on WGB mode can support up to 20 wired clients, so if there are 42 clients with two devices each, the total amount of devices to be connected to the WGBs will be 84 and we need at least 5 APs on WGB mode to support all those clients: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/workgroup_bridges.html#wgb

upvoted 2 times

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Ram0n_Aya1a

3 years ago

Tricky Question. A general rule-of-thumb is ~20-30 users per AP. https://community.cisco.com/t5/wireless/how-to-limit-maximum-wireless-client-count-per-ap/td-p/2419273 Also look at the book, Chapter 5 page 101 "This time if the room is full of people, each AP might carry around 25 associated clients" The question says "must be ordered to keep cost at minumum while connecting all devices" I will go with answer A

upvoted 2 times

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rrahim

3 years, 4 months ago

https://community.cisco.com/t5/wireless-mobility-documents/how-many-clients-can-be-connected-to-an-access-point/ta-p/3115019 Number of 802.11b devices per AP: Cisco recommends that you have no more than 15 to 25. 4*25=100 42*2=84 Answer A

upvoted 3 times

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fhrat21

3 years, 7 months ago

Answer B - 5 WGBs 42 x 2 = 84 Clients

upvoted 2 times

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ASV2020

3 years, 8 months ago

Answer: A

upvoted 1 times

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