Types of Communication

Q.

Write the full form of the following terms: RAM, HDD, CPU, DVD, WAN, UPS, OMR, MICR, USB, IC, OCR, MAN, CD, PC, BCR, LAN, ROM, CRT, FTPS and HTML.

Q.

What Is Digital Modulation And Its Types?

Q.

What are digital signals?

Q.

Why over modulation is undesirable in Amplitude Modulation(AM)?

Q.

What causes over modulation?

Q.

Which Is a Time-Sensitive Service?

1. E-mail

2. File transfer

3. Internet telephony

4. File download

Q.

The content of the communication is called: (1) a message (2) noise (3) media richness (4) jargon.

Q.

Which devices do we use for AM demodulation?

Q. What are analog and digital signals? Explain with diagram.

Q.

What is the difference between DSMX And DSM2?

Q.

Give the basic difference between broadband transmission and baseband transmission.

Q. Match the scientists according to their inventions:

1. Television
2. Telephone
3. Wireless Telegraphy
4. Telegraph

Q.

Speakers, Monitor and Plotter are examples of - GK Q&A a) Output devices b) Input devices c) Storage devices d) None of the option

Q. Match the scientists according to their inventions:

1. Television
2. Telephone
3. Wireless Telegraphy
4. Telegraph

Q. Internet access by transmitting digital data over the wires of a local telephone network is provided by

1. leased line
2. digital subscriber line
3. digital signal line
4. none of the mentioned

Q. The data transmission error is

1. more in LAN as compared to WAN
2. more in WAN as compared to LAN
3. same in LAN and WAN
4. None of the above

Q. Mobile consists of a portable microchip called :

1. Subscriber Index Module
2. Safe Index Meter
3. Simple Identification Module
4. Secure Index Model

Q. A local area network is

1. a collection of two or more connected computers sharing certain resources in a relatively small geographic location, often in the same building
2. a collection of more than twenty connected computers sharing certain resources in a relatively small geographic location, often in the same building
3. a collection of two or more connected computers sharing only system resources in a relatively small geographic location, often in the same building
4. a collection of two or more connected computers sharing file storage space only in a relatively small geographic location, often in the same building

Q. Television is an example of point to point communication.

1. False
2. True

Q. The telephone with cables was invented by:

1. Alexander Graham Bell
2. Alexander Bain
3. Martin Cooper
4. John Logie Baird

Q. Most common channel used by networks today is?

1. Internet
2. Telephone lines
3. Satellite
4. Mail

Q.

In an amplitude modulated wave for an audio frequency of 500 cycles/second, the appropriate carrier frequency will be

Q. Communication between computers using standard telephone service ______________.

1. Is most efficient
2. Produces little noise and few disturbances
3. All of the above
4. None of the above
5. Requires a change to an analog signal

Q. Internet uses

1. Packet switching
2. Circuit switching
3. Telephone switching
4. Telex switching

Q. Which of the following is not the advantage of communication through mobile?

1. Voice message, text message facilities.
2. It can be used as a mini computer
3. It can be used to print the documents saved
4. Communication between two persons even if they are moving