General Awareness

Broadcasting and Television Media

1,065 Questions

Broadcasting and television media questions cover mass communication, signal transmission, and entertainment channels. These topics are frequently included in the general awareness sections of competitive exams. Answer these questions to stay updated on communication technologies.

AM broadcasting frequencyMass communication typesTelevision signal transmissionIndian television channelsDigital versus analog signals

Broadcasting and Television Media Questions

Multiple choice

Consider the following statements:

  1. An artificial satellite can be tracked very precisely from the earth by using Doppler Effect.
  2. Cosmic rays are also known as TV waves.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (1) is correct. Doppler Effect is the change in frequency of a wave for an observer moving relative to its source. The radio signal received from a moving vehicle will help in tracking an artificial satellite. Statement (2) is incorrect. Radio waves are also called TV waves.

Multiple choice

Excessive broadcasts are generally a symptom of a problem at which layer?

  1. Physical

  2. Data link

  3. Network

  4. Transport
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Excessive broadcasts typically occur at Layer 2 (Data Link layer) due to network design issues, spanning tree problems, loops, or malfunctioning devices. Broadcasts propagate through the broadcast domain at Layer 2. Physical layer issues (option A) usually cause connectivity problems or errors, not excessive broadcasts. Network layer (option C) deals with routing, and Transport layer (option D) handles end-to-end communication like TCP/UDP.

Multiple choice

Refer to the exhibit. Hosts B and C attempt to transmit a frame at the same time, but a collision occurs. Which hosts will receive the collision jamming signal?

  1. All hosts that are shown

  2. Only hosts B and C

  3. Only hosts A, B, and C

  4. Only hosts A, B, C, and D

  5. Only hosts A, D, E, and F
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Ethernet, when a collision occurs on a shared medium (like a hub), the jamming signal propagates throughout the collision domain. All hosts connected to the same physical segment receive and process this jam signal, which causes all transmitting stations to stop and back off using the exponential backoff algorithm. The exhibit shows hosts A, B, and C connected to the same collision domain (likely a shared hub), while D, E, and F are separated by a switch, bridge, or router boundary. Only hosts on the same collision domain receive the jamming signal.

Multiple choice

While monitoring traffic on a cable network, a technician notes that data is being transmitted at 38 MHz. Which statement describes the situation observed by the technician?

  1. Data is being transmitted from the subscriber to the headend.

  2. Data is flowing downstream.

  3. Cable television transmissions are interfering with voice and data transmissions.

  4. The system is experiencing congestion in the lower frequency ranges.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In cable networks, downstream data (from headend to subscriber) typically operates in higher frequency ranges (38 MHz is within the downstream range). Upstream data (subscriber to headend) uses lower frequencies (5-42 MHz). 38 MHz is in the downstream direction. Cable TV interference would cause signal quality issues, not just frequency observations, and congestion doesn't explain the specific frequency.

Multiple choice

Which of the following broadcast channels is/are used by the base station in a GSM network to send information about the identity of the network?

  1. Frequency correction channel

  2. Synchronisation channel

  3. Broadcast control channel

  4. Common control channels

  5. Dedicated control channels
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This broadcast channel is a logical broadcast channel used by the base station in a GSM network to send information about the identity of the network.

Multiple choice

What is the easiest way of broadcasting news on internet?

  1. Blog

  2. RSS feed

  3. Portal

  4. CBS feed

  5. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

RSS feeds benefit publishers by letting them syndicate content automatically. A standardized XML file format allows the information to be published once and viewed by many different programs.

Multiple choice

Directions: The statement below is followed by five others. Select the one which most complements the idea contained in the given statement.

Since they first became part of living room furniture, television remote controls have become the advertiser's scourge. Some analysts reckon that _________.

  1. the instruments will make TV advertising completely ineffective

  2. as many as a third of all ads are zapped by viewers

  3. the instrument greatly interferes with the watching of wholesome TV programmes

  4. soon the advertising industry will have no option but to approach the government to ban the instrument

  5. there ought to be advertisements to coax the viewers out of the frequent use of remote controls
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'The advertiser's scourge is the clue. 'If the viewers change the channel during ads, it becomes a menace for advertisers. This results in the remote control becoming a scourge for the advertisers. Hence, (2) is the most appropriate answer choice.

Multiple choice

Which of the following are applications of Infrared and Millimeter waves?

  1. Short range communication/ TV remote control
  2. Personal Area Networks
  3. Data communication/Internet
  4. Satellite communication

  1. 1, 2 & 4

  2. 1 & 2

  3. 3 & 4

  4. 1 & 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Infrared and Millimeter waves are high frequency, low wavelength waves. They can be used for short range applications only. So, only Remote Control and Personal Area Networks are correct.