Microsoft 70-346 Exam

Your company has a subscription to Office 365 for midsize business and enterprises. The company uses Microsoft Skype for Business Online. You need to open ports on the network firewall to enable all of the features of Skype for Business Online. Which port or ports should you open? (Each correct answer presents part of the solution. Choose all that apply.)

  • A. inbound TCP443
  • B. outbound TCP 5061
  • C. outbound UDP 3478
  • D. outbound TCP 443
  • E. outbound UDP 50000 to outbound UDP 59999
  • F. inbound TCP 8080
Answer: Option A. C. D. E.
Explanation: 

A: inbound TCP 443 is the port for the Skype for Business for Business client service.

C: outbound UDP 3478 is the UDP port for Skype for Business audio and video sessions.

D: outbound TCP 443 is the port for the Skype for Business data sharing sessions as well as the Video and Audio and application sharing sessions.

E: outbound UDP 50000 to outbound UDP 59999 is the port for Skype for Business audio and video sessions.
References:
Firewall Ports for Office 365

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