3CX BASIC LATEST 2026 EXAM TEST PAPER QUESTIONS
AND ANSWERS GRADED A+
✔✔A caller connected to a digital receptionist can directly dial a user's extension
number and be transferred to that extension. - ✔✔T
✔✔The configurable MENU OPTIONS in digital receptionists are 0-9, *and # . - ✔✔F
✔✔A SIP trunk can have more than one number routed through the same account. For
each number that has SIP Trunk, a new trunking needs to be added on the 3CX and the
DID/MSN must be set in the Primary Number field. - ✔✔F
✔✔Firewall verification can detect whether SIP ALG is enabled on the firewall between
3CX and the Internet - ✔✔T
✔✔If you intend to have local (internal) LAN extensions, can the local LAN IP range for
3CX and/or IP phones be 172.32.0.0/24 (which are outside the IP range defined by
RFC1918). This 172.32 segment is public - ✔✔NO
✔✔A 3CX client can use the same 3CX extension number as a desktop IP phone -
✔✔T
✔✔The standard HTTPS protocol port is TCP:80 port - ✔✔F
✔✔An IP phone may have a different time zone setting than the default time zone in the
3CX - ✔✔T
✔✔The Tunnel port can be changed after the installation is complete while the SIP port
cannot - ✔✔F
✔✔Can I install the 3CX switchboard on a Windows 10 x 86 (32bits) operating system?
- ✔✔NO
✔✔If you intend to have local extensions, can the local LAN IP range for 3CX and/or IP
phones be 192.168.35.0/20 (which are outside the IP range defined by RFC1918). -
✔✔Yes
✔✔When using remote extensions behind the 3CX SBC, it is sufficient to simply forward
tunnel ports/NAT (default 5090 TCP/UDP) and HTTPS port (Default 5001 TCP) on your
firewall to the 3CX host to provision, log, and make calls. - ✔✔T
, ✔✔Assuming that you are using the tunnel port (by default the 5090) remote 3CX
clients that use tunnel only require TCP ports: 5090 and TCP:5001 to be
forwarded/NAT, they do not use UDP: 5090 - ✔✔F
✔✔To link multiple digital receptionists to each other, you must have a 3CX /PRO/
edition - ✔✔F
✔✔The configuration of a remote extension in STUN mode requires that only the SIP
port (default 5060 UDP/TCP) be forwarded/NAT on its firewall - ✔✔F
✔✔The speech to text feature is available in all license keys - ✔✔F
✔✔Have a look at the edition comparison page (https://www.3cx.com/ordering/pricing)
and answer the following question: Can you provision and use remote extensions when
using a "3CX Free Edition" license key? - ✔✔T
✔✔The ability of digital receptionists to connect callers directly to internal extensions
can be enabled or disabled by Digital Receptionist - ✔✔F
✔✔When you create the inbound rule, can the destination to which the incoming call is
routed be an external number? - ✔✔Yes
✔✔By default, adding a name to a rule will display on the user's IP phone before or after
the caller ID, indicating where the call comes from. - ✔✔F
✔✔Digital Receptionists have an option that will repeat the message from the options
menu to the caller. - ✔✔T
✔✔No extensions should be created with numbers that are also Emergency numbers in
the country where the 3CX power plant is operating. - ✔✔T
✔✔The recommended way to configure any 3CX Client is the /Welcome Email/ and to
use the attached configuration file or QR code that can be found in the 3CX Web Client
and/or Management Console. - ✔✔T
✔✔A Caller connected to a Digital Receptionist will consume 1 simultaneous call of the
Maximum Simultaneous calls allowed by the system - ✔✔T
✔✔When you choose to use a 3CX FQDN, does the configuration wizard generates a
trusted SSL certificate during installation? - ✔✔Yes
AND ANSWERS GRADED A+
✔✔A caller connected to a digital receptionist can directly dial a user's extension
number and be transferred to that extension. - ✔✔T
✔✔The configurable MENU OPTIONS in digital receptionists are 0-9, *and # . - ✔✔F
✔✔A SIP trunk can have more than one number routed through the same account. For
each number that has SIP Trunk, a new trunking needs to be added on the 3CX and the
DID/MSN must be set in the Primary Number field. - ✔✔F
✔✔Firewall verification can detect whether SIP ALG is enabled on the firewall between
3CX and the Internet - ✔✔T
✔✔If you intend to have local (internal) LAN extensions, can the local LAN IP range for
3CX and/or IP phones be 172.32.0.0/24 (which are outside the IP range defined by
RFC1918). This 172.32 segment is public - ✔✔NO
✔✔A 3CX client can use the same 3CX extension number as a desktop IP phone -
✔✔T
✔✔The standard HTTPS protocol port is TCP:80 port - ✔✔F
✔✔An IP phone may have a different time zone setting than the default time zone in the
3CX - ✔✔T
✔✔The Tunnel port can be changed after the installation is complete while the SIP port
cannot - ✔✔F
✔✔Can I install the 3CX switchboard on a Windows 10 x 86 (32bits) operating system?
- ✔✔NO
✔✔If you intend to have local extensions, can the local LAN IP range for 3CX and/or IP
phones be 192.168.35.0/20 (which are outside the IP range defined by RFC1918). -
✔✔Yes
✔✔When using remote extensions behind the 3CX SBC, it is sufficient to simply forward
tunnel ports/NAT (default 5090 TCP/UDP) and HTTPS port (Default 5001 TCP) on your
firewall to the 3CX host to provision, log, and make calls. - ✔✔T
, ✔✔Assuming that you are using the tunnel port (by default the 5090) remote 3CX
clients that use tunnel only require TCP ports: 5090 and TCP:5001 to be
forwarded/NAT, they do not use UDP: 5090 - ✔✔F
✔✔To link multiple digital receptionists to each other, you must have a 3CX /PRO/
edition - ✔✔F
✔✔The configuration of a remote extension in STUN mode requires that only the SIP
port (default 5060 UDP/TCP) be forwarded/NAT on its firewall - ✔✔F
✔✔The speech to text feature is available in all license keys - ✔✔F
✔✔Have a look at the edition comparison page (https://www.3cx.com/ordering/pricing)
and answer the following question: Can you provision and use remote extensions when
using a "3CX Free Edition" license key? - ✔✔T
✔✔The ability of digital receptionists to connect callers directly to internal extensions
can be enabled or disabled by Digital Receptionist - ✔✔F
✔✔When you create the inbound rule, can the destination to which the incoming call is
routed be an external number? - ✔✔Yes
✔✔By default, adding a name to a rule will display on the user's IP phone before or after
the caller ID, indicating where the call comes from. - ✔✔F
✔✔Digital Receptionists have an option that will repeat the message from the options
menu to the caller. - ✔✔T
✔✔No extensions should be created with numbers that are also Emergency numbers in
the country where the 3CX power plant is operating. - ✔✔T
✔✔The recommended way to configure any 3CX Client is the /Welcome Email/ and to
use the attached configuration file or QR code that can be found in the 3CX Web Client
and/or Management Console. - ✔✔T
✔✔A Caller connected to a Digital Receptionist will consume 1 simultaneous call of the
Maximum Simultaneous calls allowed by the system - ✔✔T
✔✔When you choose to use a 3CX FQDN, does the configuration wizard generates a
trusted SSL certificate during installation? - ✔✔Yes
