Consider the following communication technologies : 1. Closed-circuit Television 2. Radio Frequency Identification 3. Wireless Local Area Network Which of the above are considered Short-Range devices/technologies ?

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Q: 36 (IAS/2022)
Consider the following communication technologies :
1. Closed-circuit Television
2. Radio Frequency Identification
3. Wireless Local Area Network
Which of the above are considered Short-Range devices/technologies ?

question_subject: 

Science & Technology

question_exam: 

IAS

stats: 

0,177,109,29,25,55,177

keywords: 

{'communication technologies': [0, 0, 0, 1], 'range devices': [0, 0, 0, 1], 'wireless local area network': [0, 0, 0, 1], 'technologies': [0, 0, 1, 4], 'circuit television': [0, 0, 0, 1], 'radio frequency identification': [0, 0, 0, 1]}

  1. All of the communication technologies mentioned are considered short-range devices/technologies.

    Closed-circuit Television (CCTV) is a video surveillance system that uses a closed circuit to transmit video signals from a camera to a designated monitor or set of monitors. CCTV systems are typically used for security purposes and are limited to short-range transmission.

    Radio Frequency Identification (RFID) is a wireless technology that uses radio waves to communicate between a tag and a reader. RFID is used for tracking and identification purposes and is generally limited to short-range transmission.

    Wireless Local Area Network (WLAN) is a wireless network that connects devices within a limited area, such as a home, office, or campus. WLANs use radio waves to communicate between devices and are generally limited to short-range transmission.

 

Preparing for Future Exams: Learning from the Analysis of Past Questions

Topics to study:

  1. Communication technologies - Learning about the different ways we can communicate with each other using devices.
  2. Wireless communication - Understanding how devices can communicate without wires or cables.
  3. Short-range communication - Understanding the distance limit for communication between devices.
  4. Closed-circuit Television (CCTV) - Learning about video cameras that are used for surveillance and security.
  5. Radio Frequency Identification (RFID) - Understanding how small devices with chips can transmit information wirelessly.
  6. Wireless Local Area Network (WLAN) - Learning about wireless networks that allow devices to connect to the internet or each other.
  7. Electromagnetic spectrum - Understanding the range of frequencies that can be used for wireless communication.
  8. Antennas - Learning about the devices that are used to send and receive signals wirelessly.
  9. Signal propagation - Understanding how signals travel through the air and other materials.
  10. Modulation techniques - Understanding how signals are encoded and transmitted wirelessly.
  11. Wireless network security - Learning about the methods that are used to keep wireless networks safe and secure.

Sources:

  1. NCERT textbooks on Physics and Computer Science - These books provide an introduction to the concepts of communication and wireless communication.
  2. Online resources such as tutorials, blogs, and videos on Wireless communication and networking - These resources are a good starting point for understanding the basics.

NCERT book chapters:

  1. Physics: Chapter 8 - Electromagnetic Waves - This chapter introduces the concept of electromagnetic waves, which are used for wireless communication.
  2. Computer Science: Chapter 5 - Networking and Open Standards - This chapter explains how devices can communicate with each other over a network.
  3. Computer Science: Chapter 6 - Database Management Systems - This chapter explains how data is stored and managed in computer systems.

Related concepts:

  1. Frequency bands and spectrum allocation - Understanding how different frequencies are used for wireless communication.
  2. Wireless communication protocols and standards - Learning about the rules and standards that govern wireless communication.
  3. Radio propagation models - Understanding how signals travel through the air and other materials.
  4. Antenna design and radiation patterns - Understanding how antennas are designed to send and receive signals wirelessly.
  5. Noise and interference in wireless communication - Learning about the factors that can affect wireless signal quality.
  6. Channel coding and modulation schemes - Understanding how signals are encoded and transmitted wirelessly.
  7. Security protocols and authentication methods in wireless networks - Learning about the methods used to keep wireless networks safe and secure.
  8. RFID tag technologies and applications - Understanding how RFID tags are used to transmit information wirelessly.
  9. WLAN standards and architectures - Learning about the different types of wireless networks and how they are structured.
  10. Transmission power control and energy efficiency in wireless networks - Understanding how devices can be optimized for power and energy consumption.