3CX Basic Certification Exam Prep Document
2026/2027 | PBX Administration, VoIP, SIP
Trunking & System Configuration | 30 Verified
Questions with Detailed Rationales
Section 1: System Requirements & Installation
1. 3CX can only be installed on operating systems that use which architecture?
• A) 32-bit
• B) 64-bit
• C) ARM
• D) x86 only
Rationale: 3CX requires a 64-bit operating system architecture for installation. This
applies to both Windows Server and Linux distributions .
2. Which versions of Windows Server are supported for 3CX installation?
• A) 2008 R2, 2012
• B) 2012 R2, 2016
• C) 2012 only
• D) All versions of Windows Server
Rationale: 3CX supports installation on Windows Server 2012 R2 and 2016 .
3. Which browsers are supported by 3CX?
, • A) Internet Explorer and Safari
• B) Chrome, Edge, and Firefox
• C) Opera and Safari only
• D) All browsers are supported equally
Rationale: 3CX supports the Google Chrome, Microsoft Edge, and Mozilla Firefox
browsers for the management console and web client .
4. Which third-party software should NOT be installed on a server running 3CX?
• A) Exchange, MS SQL, DNS, VPN
• B) Antivirus software
• C) Web browsers
• D) File sharing services
Rationale: Installing Exchange, MS SQL, DNS, or VPN services on the same server
as 3CX is not recommended, as these can conflict with the PBX services and
interfere with proper operation .
5. What version of .NET is required to run 3CX on Windows?
• A) .NET 3.5
• B) .NET 4.0
• C) .NET 4.6.1
• D) .NET Core 3.1
Rationale: 3CX requires .NET Framework 4.6.1 to be installed on Windows Server .
, 6. On which virtual machine platforms can 3CX be installed? (Select all that
apply)
• A) Hyper-V
• B) ESXi
• C) VirtualBox
• D) KVM
• E) XenServer
Rationale: 3CX supports installation on Hyper-V, ESXi, KVM, and XenServer virtual
platforms .
7. Can 3CX be installed, activated, and operated without internet access?
• A) No
• B) Yes
• C) Yes, but only on Linux
• D) Yes, but only for testing
Rationale: 3CX requires internet access for installation, activation, and operation .
8. What does 3CX require in order to be set up?
• A) A static IP address
• B) A domain controller
• C) A Fully Qualified Domain Name (FQDN)
• D) A dedicated server
Rationale: 3CX requires a FQDN for proper setup and operation .
2026/2027 | PBX Administration, VoIP, SIP
Trunking & System Configuration | 30 Verified
Questions with Detailed Rationales
Section 1: System Requirements & Installation
1. 3CX can only be installed on operating systems that use which architecture?
• A) 32-bit
• B) 64-bit
• C) ARM
• D) x86 only
Rationale: 3CX requires a 64-bit operating system architecture for installation. This
applies to both Windows Server and Linux distributions .
2. Which versions of Windows Server are supported for 3CX installation?
• A) 2008 R2, 2012
• B) 2012 R2, 2016
• C) 2012 only
• D) All versions of Windows Server
Rationale: 3CX supports installation on Windows Server 2012 R2 and 2016 .
3. Which browsers are supported by 3CX?
, • A) Internet Explorer and Safari
• B) Chrome, Edge, and Firefox
• C) Opera and Safari only
• D) All browsers are supported equally
Rationale: 3CX supports the Google Chrome, Microsoft Edge, and Mozilla Firefox
browsers for the management console and web client .
4. Which third-party software should NOT be installed on a server running 3CX?
• A) Exchange, MS SQL, DNS, VPN
• B) Antivirus software
• C) Web browsers
• D) File sharing services
Rationale: Installing Exchange, MS SQL, DNS, or VPN services on the same server
as 3CX is not recommended, as these can conflict with the PBX services and
interfere with proper operation .
5. What version of .NET is required to run 3CX on Windows?
• A) .NET 3.5
• B) .NET 4.0
• C) .NET 4.6.1
• D) .NET Core 3.1
Rationale: 3CX requires .NET Framework 4.6.1 to be installed on Windows Server .
, 6. On which virtual machine platforms can 3CX be installed? (Select all that
apply)
• A) Hyper-V
• B) ESXi
• C) VirtualBox
• D) KVM
• E) XenServer
Rationale: 3CX supports installation on Hyper-V, ESXi, KVM, and XenServer virtual
platforms .
7. Can 3CX be installed, activated, and operated without internet access?
• A) No
• B) Yes
• C) Yes, but only on Linux
• D) Yes, but only for testing
Rationale: 3CX requires internet access for installation, activation, and operation .
8. What does 3CX require in order to be set up?
• A) A static IP address
• B) A domain controller
• C) A Fully Qualified Domain Name (FQDN)
• D) A dedicated server
Rationale: 3CX requires a FQDN for proper setup and operation .
