3CX BASIC CERTIFICATION ACTUAL
// // //
EXAM 60 QUESTIONS AND CORRECT
// // // // //
DETAILED ANSWERS
// //
In //the //criteria //of //the //"Outbound //Rules", //"Calls //from //Extension(s)" //having //comma
//separated //values //will //allow //multiple //extension //ranges //to //be //defined //- //verified
// answer(s)-✔✔True
The //Virtual //Extension //of //the //slave //must //match //the //master //side //virtual //extension
// number //- //verified //answer(s)-✔✔True
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. //- //verified
// answer(s)-✔✔False
On //outbound //calls //to //external //numbers, //3CX //will //process //"Outbound //Rules" //in //a //"Best
//Matching" //way, //depending //on //how //many //of //the //criteria //match. //- //verified //answer(s)-
✔✔False
Wireshark //can //- //without //any //additional //Plugins //Decode //all //Codecs //including //G711A,
// G711U, //GSM, //G729, //G726 //- //verified //answer(s)-✔✔False
STUN //extensions //can //be //configured //to //connect //to //the //tunnel //port //of //3CX //instead //of
// the //SIP //port //for //more //security. //- //verified //answer(s)-✔✔False
The //log //files //of //3CX //are //never //cleaned //even //when //you //restart //the //3CX //Services //-
// verified //answer(s)-✔✔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. //-
verified //answer(s)-✔✔False
//
Remote //extensions //may //be //provisioned //using //the //HTTP //or //HTTPS //URLs //- //verified
answer(s)-✔✔False
//
The //default //Voicemail //PIN //of //an //extension //consist //of //4 //random //alphanumerical
characters. //- //verified //answer(s)-✔✔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. //- //verified //answer(s)-✔✔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. //-
verified //answer(s)-✔✔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 //- //verified //answer(s)-✔✔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. //- //verified //answer(s)-✔✔True
//
// // //
EXAM 60 QUESTIONS AND CORRECT
// // // // //
DETAILED ANSWERS
// //
In //the //criteria //of //the //"Outbound //Rules", //"Calls //from //Extension(s)" //having //comma
//separated //values //will //allow //multiple //extension //ranges //to //be //defined //- //verified
// answer(s)-✔✔True
The //Virtual //Extension //of //the //slave //must //match //the //master //side //virtual //extension
// number //- //verified //answer(s)-✔✔True
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. //- //verified
// answer(s)-✔✔False
On //outbound //calls //to //external //numbers, //3CX //will //process //"Outbound //Rules" //in //a //"Best
//Matching" //way, //depending //on //how //many //of //the //criteria //match. //- //verified //answer(s)-
✔✔False
Wireshark //can //- //without //any //additional //Plugins //Decode //all //Codecs //including //G711A,
// G711U, //GSM, //G729, //G726 //- //verified //answer(s)-✔✔False
STUN //extensions //can //be //configured //to //connect //to //the //tunnel //port //of //3CX //instead //of
// the //SIP //port //for //more //security. //- //verified //answer(s)-✔✔False
The //log //files //of //3CX //are //never //cleaned //even //when //you //restart //the //3CX //Services //-
// verified //answer(s)-✔✔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. //-
verified //answer(s)-✔✔False
//
Remote //extensions //may //be //provisioned //using //the //HTTP //or //HTTPS //URLs //- //verified
answer(s)-✔✔False
//
The //default //Voicemail //PIN //of //an //extension //consist //of //4 //random //alphanumerical
characters. //- //verified //answer(s)-✔✔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. //- //verified //answer(s)-✔✔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. //-
verified //answer(s)-✔✔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 //- //verified //answer(s)-✔✔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. //- //verified //answer(s)-✔✔True
//