Related Questions

Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A Interface
B Modem
C Attenuation
D Teleprocessor
E None of the above
The electricity bill of a certain establishment is partially fixed and partially varies as the number of units of electricity consumed. Wen in a certain month 540 units are sonsumed. the bill is TK 1800. In another month 620 units are consumed are the bill is Tk 2040. Inayet another month if 500 units are consumed what would be the bill (in Tk) for that month?
A 1950
B 1560
C 1840
D 1680
To make the ImageHandler class portable you should create a separate file for it called __________
A imagehandler.inc.php
B images.inc.php
C handler.inc.php
D imghandler.inc.php
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and
A PC
B synchronous port
C crossover cable
D asynchronous port
E None of the above
What kind of battery is most likely included in a cordless electric knife?
A Zinc-carbon battery
B Mercury-cell battery
C Nicad battery
D Lead-acid battery
E None of the above
A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.
A True
B False
The lower and upper cut off frequencies are also called ___________ frequencies
A Sideband
B Resonant
C Half-resonant
D Half-power
Frequencies above ___________ kHz are called radio frequencies
A 2
B 10
C 50
D 200
If machine A polishes x units in 12 minutes and machine B polishes 5x units in 40 minutes, in how many minutes will A and B. working together, polish 50x units?
A 240
B 300
C 350
D 120
কোনো খেলার সরাসরি সম্প্রচারের ডেটা ট্রান্সমিট হবার প্রক্রিয়া- (i) Broadcast Transmission (ii) Duplex Transmission (iii) Simplex Mode Transmission নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i ii ও iii

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