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Telecommunication — GK Questions with Answers

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6 questions
  1. From which generation of mobile technology did messages first start being sent encrypted?
    1. 1G
    2. 2G
    3. 3G
    4. 4G
    Show answer

    Answer: (B) 2G

    Starting with 2G, mobile messages began being digitally encrypted, so that only the intended recipient could read them.

  2. On what basis does TDMA divide up data streams?
    1. by frequency
    2. by time (time slots)
    3. by code
    4. by distance
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    Answer: (B) by time (time slots)

    TDMA splits different data streams by giving each one its own time slot, in rotation.

  3. In which year was the Telecom Regulatory Authority of India (TRAI) established?
    1. 1992
    2. 1997
    3. 2000
    4. 2012
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    Answer: (B) 1997

    TRAI was set up on 20 February 1997 through an Act of Parliament.

  4. Through what medium does the TV signal reach the home in a DTH service?
    1. through a ground cable
    2. directly from a satellite to a dish antenna
    3. through a mobile tower
    4. through a telephone line
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    Answer: (B) directly from a satellite to a dish antenna

    In DTH (Direct-To-Home), the signal travels straight from a satellite to the home's dish antenna and set-top box.

  5. Which company first introduced the Plasma Display Panel (PDP)?
    1. Sony
    2. Fujitsu
    3. Samsung
    4. LG
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    Answer: (B) Fujitsu

    The Plasma Display Panel was first introduced by Fujitsu in 1997.

  6. Why was TDSAT established?
    1. to license new telecom companies
    2. to take over telecom dispute resolution, separating it from TRAI
    3. to install mobile towers
    4. to fix internet speeds
    Show answer

    Answer: (B) to take over telecom dispute resolution, separating it from TRAI

    TDSAT was created through an ordinance effective 29 May 2000, to carve dispute resolution out of TRAI and hand it to a separate tribunal.

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