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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 ?

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 ? Correct Answer 1, 2 and 3

The correct answer is 1, 2 and 3.

Key PointsShort Range Devices (SRD)

  • Short Range Devices (SRD) are radio devices that offer a low risk of interference with other radio services, usually because of their transmitted power, and hence their range is low.
  • The definition 'Short Range Device' may be applied to many different types of wireless equipment including various forms of:
    • Access control (including door and gate openers).
    • Alarms and movement detectors
    • Cordless audio devices, including wireless microphones.
    • Closed-circuit television (CCTV): CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. 
    • Wireless Local Area Networks: A wireless local area network (WLAN) is a wireless distribution method for two or more devices.
      • WLANs use high-frequency radio waves and often include an access point to the Internet.
      • A WLAN allows users to move around the coverage area, often a home or small office, while maintaining a network connection.
      • A WLAN is sometimes called a local area wireless network (LAWN).
    • Radio Frequency Identification: Radio Frequency Identification (RFID) is a technology that uses radio waves to passively identify a tagged object.
      • It is used in several commercial and industrial applications, from tracking items along a supply chain to keeping track of items checked out of a library.

Related Questions

Consider the statements given below and select the correct statement(s)
1. Computer-mediated communication (CMC) is defined as any human communication that occurs through the use of two or more electronic devices.
2. Computer-mediated Communication can be broken down into two forms i.e. synchronous and asynchronous.
3. Synchronous computer mediated communication refers to communication which occurs in real time.
4. Asynchronous computer mediated communication refers to communication which takes place when the parties engaged are not communicating in unison.
In each of the questions below are given some statements followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: Only a few Laptop are Wireless. Only a few Internet are Wifi. All Wireless are Wifi. Conclusion: I. All Wireless are Internet. II. Some Wireless are not Internet.
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. How does television affect our lives? P. On the other hand, there are several serious disadvantages of television.  Q. It can be very helpful to people who carefully choose the shows that they watch. R. Television can increase our knowledge of the outside world, there are high quality programmes that help us to understand many fields of study. S. Moreover, television benefits very old people, who can't often leave the house as well as patients in hospitals.  6. Many children stare at a television screen for more hours each day than they do anything else including studying & sleeping. 
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
The human eye is a complex part of the body that is used for seeing. Eyes enable people to perform daily tasks and to learn about the world that surrounds them. Sight, or vision, is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. When someone looks at an object, what he really sees is the light reflected from the object. This reflected light passes through the lens and falls on the retina of the eye. Here the light induces nerve impulses that travel through the optic nerve to the brain and then over other nerves to muscles and glands.
The eye is similar to a television camera. Both the eye and the television camera convert light energy to electrical energy. The eye converts light to nerve impulses that are interpreted by the brain as the sense perception called sight. A television camera converts light to electronic signals that are broadcast and transformed into light images in a television receiver. It is wonderful that human eyes blink an average of once every six seconds. This washes the eye with the salty secretion from the tear or lachrymal glands. Each tear gland is about the size and shape of an almond. These glands are situated behind the upper eyelid at the outer corner of the eye. After passing over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye. The eye is similar to the television camera because both
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. Artificial Intelligence (AI) and Machine Learning (ML) are the buzzwords in today’s technology and business landscape. P. However, the general thought is that both these technologies are meant for larger companies. Q. Both AI and ML are touted to give businesses the edge they need. R. That may not be entirely true as technologies like AI & ML become ubiquitous. S. In fact, in some cases, one may not even know the presence of such technologies in our everyday life.  6. As the cost of technology comes down, it becomes more affordable to invest in such technologies.
Which of the following has announced a collaboration with Intel to develop a 5G network by leveraging virtualized radio access network (vRAN) and open radio access network (O-RAN) technologies?
Which of the following set of statements are correct for describing the human communication process?
1. Non-verbal communication can stimulate ideas.
2. Communication is a learnt ability.
3. Communication is not a universal panacea.
4. Communication cannot break down.
5. More communication means more effective learning by students.
6. Value of what is learnt through classroom communication is not an issue for students.
Select the correct answer
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