3CX BASIC CERTIFICATION EXAM 2024 NEWEST
ACTUAL EXAM VERIFIED 100 QUESTIONS AND
CCORRECT ANSWERS ALREADY GRADED A+
1. 3CX requires a ... in order to be setup
• ANSWER- FQDN
2. NAT translates ... IPv4 IP addresses to ... private IP addresses
• ANSWER- Public, private
3. NAT can also be used to limit who can access the server using?
• ANSWER- ACL
4. IPv4 and ... are supported by 3CX
• ANSWER- IPv6
5. IPv6 ... (NAT) is not supported by 3CX
• ANSWER- Masquerading
6. If IPv6 is used ... rules are needed
• ANSWER- Firewall
7. 3CX PBX requires ... NAT
• ANSWER- Full Cone
8. SIP/SDP defines the port not the ...
• ANSWER- Transport header
9. It is recommended to ... SIP ALG
• ANSWER- Disable
10. The default SIP ports are ... UDP/TCP
• ANSWER- 5060
,11. What NAT port range does 3CX use for audio?
• ANSWER- 9000 - 10999 UDP
12. If you want to use the 3CX app or use an SBC you will need to open the
PBX tunnel port. The default TCP/UDP port is?
• ANSWER- 5090
13. If you want to use the 3CX app or use an SBC you will need to open the
HTTPS port. The default TCP port is?
• ANSWER- 5001
14. To enable the use of 3CX webmeeting you will need to allow outbound
traffic to ...
• ANSWER- webmeeting.3cx.net:443
15. 3CX Webmeeting requires that the HTTPS Port is open for TCP traffic,
which port is this?
• ANSWER- 5001
16. Port ... TCP is used to provision IP phones
• ANSWER- 5001
17. To perform remote configuration of the PBX you will need to allow
inbound traffic on port ... TCP for the duration of the setup.
• ANSWER- 5015
18. On the dashboard of the 3CX Management console we can check to see if
the ... has been configured correctly.
• ANSWER- Firewall
19. Which protocol is used for signalling in 3CX?
• ANSWER- SIP (Session Initiation Protocol)
20. The default SIP TLS port is?
• ANSWER- 5061
, 21. The default SIP Secure (SIPS) port is also?
• ANSWER- 5061 (TCP/TLS)
22. 3CX uses the STUN protocol primarily for?
• ANSWER- Assisting with NAT traversal for remote extensions
23. Which 3CX service handles media (RTP) proxying?
• ANSWER- Media Server (or 3CX Media Server)
24. The 3CX Tunnel Proxy uses which port by default?
• ANSWER- 5090 (TCP/UDP)
25. For remote IP phones (not using SBC), which port must be open inbound?
• ANSWER- 5090 (tunnel port)
26. The 3CX Management Console web interface uses which default HTTPS
port?
• ANSWER- 5001
27. Which port is used for the legacy HTTP management console (not
recommended)?
• ANSWER- 5000
28. The 3CX WebMeeting service requires outbound access to which domain?
• ANSWER- webmeeting.3cx.net
29. Which port is used by 3CX for the WebRTC (WebClient) media?
• ANSWER- 443 (HTTPS) and UDP range 9000-10999
30. The 3CX SBC (Session Border Controller) typically uses which port to
connect to the PBX?
• ANSWER- 5090 (tunnel port)
31. What is the purpose of the 3CX Firewall Checker?
• ANSWER- To verify that all required ports are open and NAT is
properly configured
ACTUAL EXAM VERIFIED 100 QUESTIONS AND
CCORRECT ANSWERS ALREADY GRADED A+
1. 3CX requires a ... in order to be setup
• ANSWER- FQDN
2. NAT translates ... IPv4 IP addresses to ... private IP addresses
• ANSWER- Public, private
3. NAT can also be used to limit who can access the server using?
• ANSWER- ACL
4. IPv4 and ... are supported by 3CX
• ANSWER- IPv6
5. IPv6 ... (NAT) is not supported by 3CX
• ANSWER- Masquerading
6. If IPv6 is used ... rules are needed
• ANSWER- Firewall
7. 3CX PBX requires ... NAT
• ANSWER- Full Cone
8. SIP/SDP defines the port not the ...
• ANSWER- Transport header
9. It is recommended to ... SIP ALG
• ANSWER- Disable
10. The default SIP ports are ... UDP/TCP
• ANSWER- 5060
,11. What NAT port range does 3CX use for audio?
• ANSWER- 9000 - 10999 UDP
12. If you want to use the 3CX app or use an SBC you will need to open the
PBX tunnel port. The default TCP/UDP port is?
• ANSWER- 5090
13. If you want to use the 3CX app or use an SBC you will need to open the
HTTPS port. The default TCP port is?
• ANSWER- 5001
14. To enable the use of 3CX webmeeting you will need to allow outbound
traffic to ...
• ANSWER- webmeeting.3cx.net:443
15. 3CX Webmeeting requires that the HTTPS Port is open for TCP traffic,
which port is this?
• ANSWER- 5001
16. Port ... TCP is used to provision IP phones
• ANSWER- 5001
17. To perform remote configuration of the PBX you will need to allow
inbound traffic on port ... TCP for the duration of the setup.
• ANSWER- 5015
18. On the dashboard of the 3CX Management console we can check to see if
the ... has been configured correctly.
• ANSWER- Firewall
19. Which protocol is used for signalling in 3CX?
• ANSWER- SIP (Session Initiation Protocol)
20. The default SIP TLS port is?
• ANSWER- 5061
, 21. The default SIP Secure (SIPS) port is also?
• ANSWER- 5061 (TCP/TLS)
22. 3CX uses the STUN protocol primarily for?
• ANSWER- Assisting with NAT traversal for remote extensions
23. Which 3CX service handles media (RTP) proxying?
• ANSWER- Media Server (or 3CX Media Server)
24. The 3CX Tunnel Proxy uses which port by default?
• ANSWER- 5090 (TCP/UDP)
25. For remote IP phones (not using SBC), which port must be open inbound?
• ANSWER- 5090 (tunnel port)
26. The 3CX Management Console web interface uses which default HTTPS
port?
• ANSWER- 5001
27. Which port is used for the legacy HTTP management console (not
recommended)?
• ANSWER- 5000
28. The 3CX WebMeeting service requires outbound access to which domain?
• ANSWER- webmeeting.3cx.net
29. Which port is used by 3CX for the WebRTC (WebClient) media?
• ANSWER- 443 (HTTPS) and UDP range 9000-10999
30. The 3CX SBC (Session Border Controller) typically uses which port to
connect to the PBX?
• ANSWER- 5090 (tunnel port)
31. What is the purpose of the 3CX Firewall Checker?
• ANSWER- To verify that all required ports are open and NAT is
properly configured
