NEED A SECOND OPENION SOMEONE HELP

I will be very happy to get a second openion on this quetion i read in a magazine the quetion :SENDING MORE THAN ONE SIGNAL OVER A TELECOMMUNICATIONS CHANNEL SIMULTAINEOUSLY WOULD MOST LIKELY UTILIZE A A
A)MULTIPLEXER and DEMULTIPLEXER
D)MODEM AND DEMODEM.

Can someone help me pls which of the two is most likely to be used for simultaineouse tramsmission.thanks

Mux vs Modem.

en.wikipedia.org/wiki/Multiplexer

en.wikipedia.org/wiki/Modem

Good luck. Africa needs telecom infrastructure pretty badly.

GEORGE KENNEDY in Ghana said: I will be very happy to get a second openion on this quetion i read in a magazine the quetion :SENDING MORE THAN ONE SIGNAL OVER A TELECOMMUNICATIONS CHANNEL SIMULTAINEOUSLY WOULD MOST LIKELY UTILIZE A A
A)MULTIPLEXER and DEMULTIPLEXER
D)MODEM AND DEMODEM.

Can someone help me pls which of the two is most likely to be used for simultaineouse tramsmission.thanks

The correct answer would be Multiplexer and demultiplexer

GEORGE KENNEDY in Ghana said: I will be very happy to get a second openion on this quetion i read in a magazine the quetion :SENDING MORE THAN ONE SIGNAL OVER A TELECOMMUNICATIONS CHANNEL SIMULTAINEOUSLY WOULD MOST LIKELY UTILIZE A A
A)MULTIPLEXER and DEMULTIPLEXER
D)MODEM AND DEMODEM.

Can someone help me pls which of the two is most likely to be used for simultaineouse tramsmission.thanks

Mux can transmit simultaneously one or more apps. modem can only send one simultaneous transmission.

GEORGE KENNEDY in Ghana said: I will be very happy to get a second openion on this quetion i read in a magazine the quetion :SENDING MORE THAN ONE SIGNAL OVER A TELECOMMUNICATIONS CHANNEL SIMULTAINEOUSLY WOULD MOST LIKELY UTILIZE A A
A)MULTIPLEXER and DEMULTIPLEXER
D)MODEM AND DEMODEM.

Can someone help me pls which of the two is most likely to be used for simultaineouse tramsmission.thanks

I am a Transmission/Transport Engineer by trade. The Multplexer is used to transport multiple signals. A mux can be as small as and OC3 (a little over 2,000 people talking simultaneously) and as large as and OC192 (a little over 129,,000 people talking simultaneously) The OC's transport their signal over four fiber glass cables. Transmit and receive "West" and "East". These mux's typically are on a fiber ring. Small as an OC3 in a downtown eviroment, an OC192 which may have been constructed thruough many states.

This site has been very helpful to me,and i must say i am very grateful to all my coleague technicians and my seniors too.
I JUST COMPLETED MY DIPLOMA IN TELECOMMUNICATION TECHNICIAN COURSE WITH AN ONLINE SCHOOL IN THE US,AND HAVE WANTED TO FURTHER IT BY TAKING THE DEGREE,BUT UNFORTUNATLY,THE SCHOOL HAS STOPED OFFERING COURSES TO GHANA.
CAN SOMEONE HELP ME FIND AN ONLINE SCHOOL(TELECOMMUNICATIONS OR ELECTRONICS TRANSMISSION.) IN THE US,OR AUSTRALIA THAT OFFERS COURSES ONLINE TO AFRICA,
PLEASE I NEED IT BADLY.

Multiplexer does combination of more channels(baseband) into a broadband and transmit them as a single channel and at the rx end demux does the reverse

GEORGE KENNEDY in Ghana said: I will be very happy to get a second openion on this quetion i read in a magazine the quetion :SENDING MORE THAN ONE SIGNAL OVER A TELECOMMUNICATIONS CHANNEL SIMULTAINEOUSLY WOULD MOST LIKELY UTILIZE A A
A)MULTIPLEXER and DEMULTIPLEXER
D)MODEM AND DEMODEM.

Can someone help me pls which of the two is most likely to be used for simultaineouse tramsmission.thanks

It depends on your capacity need actually. Modems will be sufficient for short haul, low capacity transmission. Mux (multiplexers) are ideal for long haul higer capacity transmission. Other options would be Wifi or wireless IP and microwave point to point transmission. Hope this is helpful.