You deploy Office 365.
You must implement Microsoft Skype for Business Online for all users. including audio and video for all desktop
clients. All company desktop machines reside behind a company firewall.
You need configure the firewall to allow clients to use Skype for Business Online.
Which three outbound ports or port ranges should you open? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.
A.
TCP 80
B.
TCP 5061
C.
UDP 3478
D.
TCP 443
E.
TCP and UDP 50000-59999
Explanation:
https://support.microsoft.com/en-za/help/2409256/you-can-t-connect-to-skype-for-business-online–
or-certain-features-do
According to document : https://techcommunity.microsoft.com/t5/Skype-for-Business-Blog/Simplified-port-requirements-for-Skype-for-Business-Online/ba-p/77094
it is :
80
443
3478,3479,3480,3481
Optional: 50,000 – 59,999
So answer : A,C,D
2
0
Answer is correct.
https://support.office.com/en-us/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2
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0
Correct:
Required: Audio, Video, & Desktop sharing
client computer | logged on user
*.lync.com
yes
Skype for Business IP ranges.
TCP 443, UDP 3478, 3479, 3480, & 3481
Optional: TCP & UDP 50,000-59,999
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0
A, C, D
TCP 80, 443
UDP 3478, 3479, 3480, 3481
Optional: UDP/TCP 50,000-59,999
https://techcommunity.microsoft.com/t5/Skype-for-Business-Blog/Simplified-port-requirements-for-Skype-for-Business-Online/ba-p/77094
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Ports 50,000-59,999 are only optional, not allowing traffic through these ports means traffic will be forced to take an extra hop to an additional Relay Server homed on the Microsoft Network sent over a highly reliable pipe.
Answer is A, C, D
https://support.office.com/en-us/article/office-365-urls-and-ip-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2
to learn more:
https://myadvisor.fasttrack.microsoft.com/CloudVoice/academy?TechnicalProductTrainings=Skype%20for%20Business%20media%20flows
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