3CX ACADEMY, ADVANCED CERTIFICATION
EXAM TEST | 2025 COMPLETE 3CX
CERTIFICATION ACTUAL EXAM WITH CORRECT
VERIFIED ANSWERS | ALREADY GRADED A+ |
BRAND NEW
A TLS certificate and key will have to be imported into 3CX so taht SRTP
can be used. - ✔✔✔ Correct Answer > False
3CX can be installed on Linux Debian 7 using KVM as the hypervisor
platform. - ✔✔✔ Correct Answer > Answer: False. 3CX can be installed on
more recent versions of Debian, but Debian 7 is too old for current 3CX
versions.
You cannot create multiple CID "Inbound Rules" and associate them
with different SIP Trunks you have in 3CX. - ✔✔✔ Correct Answer > False
,The 3CX SIP port should be filtered by firewall ACL rules to maximize
security and allow only trusted IPs to reach it (VoIP providers or STUN
extensions if any). - ✔✔✔ Correct Answer > True
SRTP will secure calls so that a middle-man can't see the SIP traffic in
plain-text. - ✔✔✔ Correct Answer > False
When creating a new user 3CX generates a random 10-digit
alphanumeric value as the SIP ID of the extension. - ✔✔✔ Correct Answer >
Answer: False. 3CX typically generates a random 8-digit alphanumeric
value as the SIP ID of the extension, not 10-digit.
In the "Event Log" the following message is shown:
Call from [100] to [+61424000000] has been rejected by the 3CX
Country Blocking Feature [+61]. Reason: +61424000000 contains Prefix
+61. Calls to +61 are not allowed by system
. To allow calls to country code +61 (Australia) add an additional
outbound rule and define +61 as prefix. - ✔✔✔ Correct Answer > Answer:
True. The event log message accurately describes the country blocking
feature and how to allow calls to the blocked country code.
,On outbound calls to external numbers, 3CX will process "Outbound
Rules" in a "Best Matching" way, depending on how many of the
criteria match. - ✔✔✔ Correct Answer > False
Wireshark can - without any additional Plugins Decode all Codecs
including G711A, G711U, GSM, G729, G726 - ✔✔✔ Correct Answer > False
STUN extensions can be configured to connect to the tunnel port of 3CX
instead of the SIP port for more security. - ✔✔✔ Correct Answer > False
The log files of 3CX are never cleaned even when you restart the 3CX
Services - ✔✔✔ Correct Answer > False
Once Secure SIP has been configured in 3CX, Secure SIP certificates will
need to be deployed manually in phones and softphones OS so that
they can communicate. - ✔✔✔ Correct Answer > False
, Remote extensions may be provisioned using the HTTP or HTTPS URLs -
✔✔✔ Correct Answer > False
The default Voicemail PIN of an extension consist of 4 random
alphanumerical characters. - ✔✔✔ Correct Answer > False
Your 3CX has only one SIP Trunk and receives a call from number
8135791691. If you have a "Inbound CID Reformatting" rule on the
Trunk with "Source Pattern" 813(...)(.*) and "Replace Pattern" \1\2, the
extension that receives the call will see "5791691" as the caller ID on its
display. - ✔✔✔ Correct Answer > True
When 3CX has been installed without a FQDN from 3CX and in split DNS
mode, the DNS server must not be installed on the same machine as
the phone system. - ✔✔✔ Correct Answer > True
Your Local IP Phone loses the registration to 3CX and you want do
troubleshoot the issue. You should start a Wireshark Capture on the
3CX Server, reboot the phone, and then apply the Filter
EXAM TEST | 2025 COMPLETE 3CX
CERTIFICATION ACTUAL EXAM WITH CORRECT
VERIFIED ANSWERS | ALREADY GRADED A+ |
BRAND NEW
A TLS certificate and key will have to be imported into 3CX so taht SRTP
can be used. - ✔✔✔ Correct Answer > False
3CX can be installed on Linux Debian 7 using KVM as the hypervisor
platform. - ✔✔✔ Correct Answer > Answer: False. 3CX can be installed on
more recent versions of Debian, but Debian 7 is too old for current 3CX
versions.
You cannot create multiple CID "Inbound Rules" and associate them
with different SIP Trunks you have in 3CX. - ✔✔✔ Correct Answer > False
,The 3CX SIP port should be filtered by firewall ACL rules to maximize
security and allow only trusted IPs to reach it (VoIP providers or STUN
extensions if any). - ✔✔✔ Correct Answer > True
SRTP will secure calls so that a middle-man can't see the SIP traffic in
plain-text. - ✔✔✔ Correct Answer > False
When creating a new user 3CX generates a random 10-digit
alphanumeric value as the SIP ID of the extension. - ✔✔✔ Correct Answer >
Answer: False. 3CX typically generates a random 8-digit alphanumeric
value as the SIP ID of the extension, not 10-digit.
In the "Event Log" the following message is shown:
Call from [100] to [+61424000000] has been rejected by the 3CX
Country Blocking Feature [+61]. Reason: +61424000000 contains Prefix
+61. Calls to +61 are not allowed by system
. To allow calls to country code +61 (Australia) add an additional
outbound rule and define +61 as prefix. - ✔✔✔ Correct Answer > Answer:
True. The event log message accurately describes the country blocking
feature and how to allow calls to the blocked country code.
,On outbound calls to external numbers, 3CX will process "Outbound
Rules" in a "Best Matching" way, depending on how many of the
criteria match. - ✔✔✔ Correct Answer > False
Wireshark can - without any additional Plugins Decode all Codecs
including G711A, G711U, GSM, G729, G726 - ✔✔✔ Correct Answer > False
STUN extensions can be configured to connect to the tunnel port of 3CX
instead of the SIP port for more security. - ✔✔✔ Correct Answer > False
The log files of 3CX are never cleaned even when you restart the 3CX
Services - ✔✔✔ Correct Answer > False
Once Secure SIP has been configured in 3CX, Secure SIP certificates will
need to be deployed manually in phones and softphones OS so that
they can communicate. - ✔✔✔ Correct Answer > False
, Remote extensions may be provisioned using the HTTP or HTTPS URLs -
✔✔✔ Correct Answer > False
The default Voicemail PIN of an extension consist of 4 random
alphanumerical characters. - ✔✔✔ Correct Answer > False
Your 3CX has only one SIP Trunk and receives a call from number
8135791691. If you have a "Inbound CID Reformatting" rule on the
Trunk with "Source Pattern" 813(...)(.*) and "Replace Pattern" \1\2, the
extension that receives the call will see "5791691" as the caller ID on its
display. - ✔✔✔ Correct Answer > True
When 3CX has been installed without a FQDN from 3CX and in split DNS
mode, the DNS server must not be installed on the same machine as
the phone system. - ✔✔✔ Correct Answer > True
Your Local IP Phone loses the registration to 3CX and you want do
troubleshoot the issue. You should start a Wireshark Capture on the
3CX Server, reboot the phone, and then apply the Filter
