3CX Academy Advanced Certification 62 Questions with 100% Correct Answers Verified Latest, Exams of Nursing

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[Date] 3CX Academy Advanced Certification 62 Questions with 100% Correct Answers Verified Latest Update 1) In the criteria of the "Outbound Rules", "Calls from Extension(s)" having comma separated values will allow multiple extension ranges to be defined - ✔✔️T️rue 2) The Virtual Extension of the slave must match the master side virtual extension number - ✔✔️T️rue 3) For extensions that are registered over multiple site-to-site VPNs, by default 3CX delivers the audio between phones if they are on different subnets. - ✔✔️F️alse 4) On outbound calls to external numbers, 3CX will process "Outbound Rules" in a "Best Matching" way, depending on how many of the criteria match. - ✔✔️F️alse 5) Wire shark can - without any additional Plugins Decode all Codecs including G711A, G711U, GSM, G729, G726 - ✔✔️F️alse 6) STUN extensions can be configured to connect to the tunnel port of 3CX instead of the SIP port for more security. - ✔✔️F️alse [Date] 7) The log files of 3CX are never cleaned even when you restart the 3CX Services - ✔✔️F️alse 8) 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. - ✔✔️F️alse 9) Remote extensions may be provisioned using the HTTP or HTTPS URLs - ✔✔️F️alse 10) The default Voicemail PIN of an extension consist of 4 random alphanumerical characters. - ✔✔️F️alse 11) 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. - ✔✔️T️rue 12) 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. - ✔✔️T️rue 13) Your Local IP Phone loses the registration to 3CX and you want do troubleshoot the issue. You should start a Wire shark Capture on [Date] sip.Cseq.Method==SUBSCRIBE in order to see if registrations are reaching 3CX. - ✔✔️F️alse 25) The "Server Activity Log" will provide information for: Phone Registrations, Gateway and SIP Trunk Interactions, All Related Calls - ✔✔️T️rue 26) Each extension gets a default password which is always the same and should be changed for more safety. - ✔✔️F️alse 27) You are debugging an audio issue using wire shark by analyzing 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. - ✔✔️T️rue 28) If you want to check 3CX routing of a call then only a Wire shark capture is needed, - ✔✔️F️alse 29) Knowing only the FQDN/port of 3CX and the MAC address of a phone I could guess its provisioning URL. - ✔✔️F️alse 30) An outbound call is routed through the VoIP Provider. This "Route" of the "Outbound Rule" has "Strip Digits" set as 0 and has no [Date] values in the "Prepend" field. A user dials 004433272020. 3CX will send the call to the provider exactly as dialed - ✔✔️T️rue 31) You can use the same VoIP Provider in all of the Outgoing Routes of a rule - ✔✔️T️rue 32) If you want to decode audio in wire shark without any plugins, your calls will need to be using either G711A or G711U - ✔✔️T️rue 33) If you want to check the internal PBX routing of a call, the most reliable way is through the use of the Binary Log Viewer, or which you must know some information about the call you are investigating, like the Caller ID, the time of the call, etc. - ✔✔️T️rue 34) Assume the following scenario: 3CX is connected via a site-to- site VPN with two different buildings where remote phones have been provisioned. 3CX is on network 192.168.9.xxx, Phones on location A are on network 192.168.3.xxx, Phones on location B are on network 192.168.8.xxx. When a call is established, between an extension on remote location A to an extension to remote location B, by default 3CX will proxy the SIP and audio traffic and send it to the extensions - ✔✔️T️rue [Date] 35) Assume the following scenario: 2 Phone Systems bridged over a site-to-site VPN connection. Phone system A on network 192.168.9.xxx, Phone System B on network 192.168.3.xxx. The options "Supports Re-Invite" and "Supports Re-places" are enabled on the bridge settings. When a call is established between an extension from PBX A to an extension behind PBX B, the audio will be exchanged directly between the 2 extensions. - ✔✔️F️alse 36) When an established call from your local extension to an external number is terminated from your IP Phone you should see a BYE being send in from the Provider / PSTN gateway, towards your PBX IP address in wire shark - ✔✔️F️alse 37) When 3CX has been installed without an FQDN from 3CX and in split DNS mode, the DNS server must not be installed on the same machine as the phone system - ✔✔️T️rue 38) A TLS certificate and key will have to be imported into 3CX so that SRTP can be used. - ✔✔️F️alse 39) You cannot create multiple CID "Inbound Rules" and associate them with different SIP Trunks you have in 3CX. - ✔✔️F️alse [Date] 53) You are having an issue with incoming call routing being sent to the wrong internal destination once it is received by 3CX. The first step to troubleshoot the issue would be to set your System to Verbose Logging, start wire shark, replicate the issue and then Restart all 3CX Services, generate the support files and send them to 3CX Support for troubleshooting - ✔✔️F️alse 54) Setting a Name when creating a "CID Inbound Rule" is mandatory - ✔✔️F️alse 55) When the option "Remote PBX uses SBC/Tunnel Connection" is enabled on the master bridge, the Slabe bridge must be registered behind the SBC. - ✔✔️F️alse 56) You can take a phone that has already been provisioned with RPS as remote STUN Extension and configure it as a Local LAN extension, as long as 2 weeks have passed since the phone was provisioned as a STUN extension - ✔✔️F️alse 57) You have run the 3CX "Firewall Checker" and come up as Green, but you still have audio issues and calls dropping on outbound / inbound calls. Can SIP ALG be the culprit? - ✔✔️T️rue [Date] 58) Remote presence of a bridged system is available in both IP Phones (via BLF) and the 3CX Phone for Windows - ✔✔️F️alse 59) The numbering plan of bridged systems must be different in order for outgoing calls to the bridge to work - ✔✔️F️alse 60) ZRTP and SRTP are both supported to secure the audio stream of calls within the 3CX Phone System. - ✔✔️F️alse 61) The 3CX Instance Manager is available for 3CX v16+ installs on what Operating System? - ✔✔️L️inux x86 with no failover or hosting mode enabled 62)The 3CX Instance Manager allows you to perform batch updates - ✔✔️T️rue