3CX ADVANCED CERTIFICATION EXAM 2024
NEWEST ACTUAL EXAM DETAILED 100
QUESTIONS AND GUARANTEED ANSWERS
ALREADY GRADED A+.
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. - 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. -
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 sip.Cseq.Method==REGISTER in order to see if registrations are
reaching 3CX - ANSWER- True
Your 3CX has only one SIP Trunk and receives a call from number 422033272020 and
you want it to be presented on the extension display as +44272020. You can do this
with a "Inbound CID Reformatting" rule on the Trunk with "Source Pattern" 44(..)(..)(.*)
and "Replace Pattern" +44\3. - ANSWER- True
, When selecting the option "I need a 3CX FQDN" an internal DNS is not mandatory -
ANSWER- True
Each extension gets a default password which is always the same and should be
changed for more safety. - ANSWER- False
You are debugging an audio issue using wireshark by analysing the RTP streams.
While using the RTP Stream analysis tools you see that the MAX Delta of packages
from the Provider to 3CX is 8-- MS while the Max Delta for the reverse direction is 20
Ms. The issue is located at the provider end and not 3CX end. - ANSWER- True
If you want to check 3CX routing of a call then only a Wireshark capture is needed, -
ANSWER- False
Knowing only the FQDN/port of 3CX and the MAC address of a phone I could guess its
provisioning URL. - ANSWER- False
An outbound call is routed through the VoIP Provider. This "Route" of the "Outbound
Rule" has "Strip Digits" set as 0 and has no values in the "Prepend" field. A user dials
004433272020. 3CX will send the call to the provider exactly as dialed - ANSWER- True
You can use the same VoIP Provider in all of the Outgoing Routes of a rule - ANSWER-
True
NEWEST ACTUAL EXAM DETAILED 100
QUESTIONS AND GUARANTEED ANSWERS
ALREADY GRADED A+.
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. - 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. -
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 sip.Cseq.Method==REGISTER in order to see if registrations are
reaching 3CX - ANSWER- True
Your 3CX has only one SIP Trunk and receives a call from number 422033272020 and
you want it to be presented on the extension display as +44272020. You can do this
with a "Inbound CID Reformatting" rule on the Trunk with "Source Pattern" 44(..)(..)(.*)
and "Replace Pattern" +44\3. - ANSWER- True
, When selecting the option "I need a 3CX FQDN" an internal DNS is not mandatory -
ANSWER- True
Each extension gets a default password which is always the same and should be
changed for more safety. - ANSWER- False
You are debugging an audio issue using wireshark by analysing the RTP streams.
While using the RTP Stream analysis tools you see that the MAX Delta of packages
from the Provider to 3CX is 8-- MS while the Max Delta for the reverse direction is 20
Ms. The issue is located at the provider end and not 3CX end. - ANSWER- True
If you want to check 3CX routing of a call then only a Wireshark capture is needed, -
ANSWER- False
Knowing only the FQDN/port of 3CX and the MAC address of a phone I could guess its
provisioning URL. - ANSWER- False
An outbound call is routed through the VoIP Provider. This "Route" of the "Outbound
Rule" has "Strip Digits" set as 0 and has no values in the "Prepend" field. A user dials
004433272020. 3CX will send the call to the provider exactly as dialed - ANSWER- True
You can use the same VoIP Provider in all of the Outgoing Routes of a rule - ANSWER-
True
