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Question 54

An engineer must perform an assessment of a customer LAN for a future IEEE 802.11ac Wave 2 wireless deployment. All access switches are Fast Ethernet- capable only, and the wired infrastructure between existing APs and access switches is based on the CAT 6A standard. Which two actions provide maximum support of Cisco 3800 Series access points? (Choose two.)

    Correct Answer: A, D

    To provide maximum support for Cisco 3800 Series access points in an 802.11ac Wave 2 deployment, it is important to upgrade the existing Fast Ethernet switches to multi-gigabit (mGig) switches. This is because mGig switches can handle the higher data rates required by 802.11ac Wave 2. Additionally, the existing CAT 6A wiring is suitable for supporting these higher data rates over distances up to 100 meters. Therefore, ensuring that the distance between access switches and access points does not exceed 100 meters will optimize the performance and reliability of the deployment.

Discussion
RogerTheLodgerOptions: AD

AD - mGIG switches recommended for 802.11AC wave 2 AP deployment Cisco 802.11ac Wave 2 Access Points - Cisco CAT 6A cable can support mGIG links when they do not exceed 100m Cisco Aironet Series 2800/3800 Access Point Deployment Guide

Coffee313Options: AD

AD is correct

ASV2020Options: AD

Answer: A & D

FabriGOptions: AD

According to Cisco ENWLSD Course, it is A and D.

Matha83Options: AC

I`ll go with A and C A - Yes you need Mgig switches C- What is the point of doing Mgig with APs if the uplinks are limited to 100 or a gi D- since its an existing site that means APs are already working and distances between APs and SWs are less than 100M.

gopoloOptions: AC

AC is right answer Get up-to-date https://www.pinterest.com/pin/937522847419120025

CyborgXCZOptions: AC

A - For sure C - As some one already mentioned what is the point to use mGig if rest is FE capable only D - Not D based on keyword in the question " existing infra....based on the CAT6A standard" CAT6A Standard = Supports up to 100m in other words the Infra is built up to the code.

ciscoturd01

I'm going to say it like this, I don't know of a single switch manufacturer whether it is cisco or 3rd party that would create a switch with mGig Access ports and make their uplinks with less bandwidth than their access ports. generally if you have a 2.5 gig port, the uplinks are atleast 10gig. So that argument is invalid. Answer is A&D

JCastroGOptions: AD

A&D Cat 6A support 10Gbps with mgig switches up to 100 mts Cat 6 support 10Gbps only up to 55 mts.

Lakshan__97

why do we need 10G for UTP even 3800 Series mGig supports up to 5 Gbps which works with CAT6 and CAT 6A for 100 meters . your point is correct CAT6A is the one for 10G for 100 meters and CAT 6 for 55 m only but here the 10G for AP is not an answer even the AP doesnt support 10G uplink.

Bembs

I believe Uplink in this context means switch trunk (uplink) port, not AP to switch connection.

Lakshan__97Options: AC

A and C , A is correct for mGig since the scenario has fast ethernet , C is correct becasse to get he maximum support from 3900 series at least ports should be 1G port and uplinks should be 10G to have a better oversubscribe ratio. D is not an answer or this question. because CAT 6 and CAT 6A support 5 Gbps till 100 meters since the 3800 series supports maximum 5Gbps, no need to worry 10Gbps for AP.

yaramhuOptions: CD

CD, C3800 does not have mGig port

Gab99

they do, check your facts