3CX BASIC
CERTIFICATION PRACTICE
EXAM
Question 1: Which architectures does 3CX support for installation?
Choices:
1) 64-bit only 2) 32-bit only 3) Both 32-bit and 64-bit 4) ARM only
Correct Answer: 64-bit only
Explanation: 3CX is a modern PBX designed for 64-bit operating systems only.
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Question 2: Which versions of Windows Server are o�cially supported to run 3CX?
Choices:
1) Windows Server 2008 and 2012 2) Windows Server 2012 R2 and 2016 3) Windows Server 2019 and 2022 only 4) Windows Server 2003 and 2008 R2
Correct Answer: Windows Server 2012 R2 and 2016
Explanation: 3CX o�cially supports Windows Server 2012 R2 and 2016 for basic installations.Question 3: Which of the following ports must be open on the �rewall to allow 3CX App and SBC remote connections?
Choices:
1) 5060 (UDP/TCP)
2) 5090 (UDP/TCP)
3) 443 (TCP)
4) 80 (TCP)
Correct Answer: 5090 (UDP/TCP)
Explanation: Port 5090 (UDP and TCP) is the proprietary 3CX tunnel port used by the SBC and 3CX Apps.Page 2
Question 4: What port does 3CX use by default for SIP tra�c (UDP/TCP)?
Choices:
1) 5001
2) 5060
3) 5090
4) 5015
Correct Answer: 5060
Explanation: Port 5060 is the industry standard default port for SIP tra�c.Question 5: In order for the 3CX system to be setup properly, which of the following is required?
Choices:
1) FQDN
2) Dynamic IP without DDNS 3) NAT Masquerading 4) IPv6 only
Correct Answer: FQDN
Explanation: An FQDN (Fully Quali�ed Domain Name) is required during the initial setup of a
3CX PBX.
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