Related Questions

Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?
A Paperless office
B Electronic mail
C Global network
D Electronic newspaper
E None of the above
If you have a PowerPoint show you created and want to send using email to another teacher you can add the show to your email message as a (an)
A Inclusion
B Attachment
C Reply
D Forward
It is an email address. In this sentence 'email' is-
A Adjective
B Adverb
C Verb
D None of the above.
একই পদার্থ ও ব্যাসার্ধের দুটি তারের দৈর্ঘ্যের অনুপাত 1:2 । যদি সমান বল দ্বারা তার দুটিকে টানা হয়, তাহলে তার দুটির বিকৃতির অনুপাত কত? (Two wires of same material and same radius have the ratio of length 1:2 . If you pull the wires with same force, what will be the ratio of their strains?)
A 1:2
B 4:1
C 2:1
D 1:4
Technology used to provide internet by transmitting data over wires of telephone network is
A Transmitter
B DSL
C Diodes
D HHL
Overhead telephone wires are made of
A aluminium
B steel
C ACSR conductors
D Copper
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
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
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
A Telex
B Word processor
C Facsimile
D Electronic mail
E None of the above
There are tow examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same . If 20 candidates are sent from B to A, then the number of students in a is double the number of students in B. what is the number of students in room A?
A 20
B 80
C 100
D 200

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