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Science & Tech Target- 2018 (Series-4)

Communication & Information Technology By Dr. Ravi P. Agrahari - Scientist in IIT Delhi- Author of Mc Graw Hill Publication for Science & Technology- last 17 years teaching experience for UPSC aspirant


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UNIT-1ENERGY

WHAT TO READ AND HOW TO READ


Lecture 1- Communication vs. Information technology- Mode of Communication: Basic line and wireless- Basic Line : Cupper wire vs. Optical Fibre- Electromagnetic waves in wireless connection- GSM vs. CDMA

Lecture 2- Problem with Chinese handset- Conventional vs Satellite Phone- SIM Card- Generation of Mobile Phone technology- 3G vs. 4G- Different transponders and its uses

Lecture 3 - Internet - www - Global Internet Governance - Internet of Things (IoT) - Net Neutrality - Network

Lecture 4 - Bluetooth - wi-fi direct - Hotspot - Cardless Phone - Wi-fi - Wi-max - NFC - Li-fi (Wi-fi vs. Li-fi) - White-fi

Lecture 5 - E-Governance - National e-governance Programme - State Data Centre - e-district - Mobile governance - Rapid application initiative - E-Bharat - Meghraj - Dial governance - e-Taal - National Optical fiber Network - Pragati, m-krishi, Adhar, Digital locker, - JAM – Trinity - E-Learning : Swayam , Saransh


Lecture 6 - SPECTRUM POLICY (2-G SPECTRUM SCAM, ANTRIX-DEVAS DEAL) - BROADBAND POLICY - ENCRYPTION - NATGRID - BIOMETRICS - DIGITAL SIGNATURE - VR and AR - TKDL (Traditional Knowledge Digital Library) - Digital India Initiative - Poject Nilgiri - Project Loon


Reference Book

UNIT-IV

Chapter 13: Technological Aspects of Information and Communication Technology

(ICT) with Mobile Generation


1. layer in the Earth’s atmosphere called Ionosphere facilitates radio communication. Why? [UPSC (Pre) - 2011]1. The presence of ozone causes the reflection of radio waves to Earth.2. Radio waves have a very long wavelength. Which of the statement(s) given above is/are correct?(a) 1 only (b) 2 only(c) Both 1 and 2 (d) Neither 1 nor 2

2. Which among the following do/does not belong/belongs to the GSM family of wireless technologies?[UPSC (Pre) - 2010](a) EDGE (b) LTE(c) DSL (d) Both EDGE and LTE


Reference Book

UNIT-IV Chapter 14: Internet, Different types of Network, International Telecommunication

Union (ITU), e-Governance


3. ‘SWAYAM’, an initiative of the Government of India, aims at [UPSC (Pre)—2016]

(a) Promoting Self Helps Groups in rural areas (b) Providing financial and technical assistance to young start-up entrepreneurs (c) Promoting the education and health of adolescent girls. (d) Providing affordable and quality education to the citizens for free.

4. Regarding Digi Locker’, sometimes seen in the news, which of the following statements is/are correct? [UPSC (Pre) - 2016]1. It is a digital locker system offered by the Government under Digital India Programme.2. It allows you to access your e-documents irrespective of your physical location.Select the correct answer using the code given below:(a) 1 only (b) 2 only(c) Both 1 and 2 (d) Neither 1 nor 2

5. With reference to ‘Li-Fi, recently in the news, which of the following statements is/are correct? [UPSC (Pre) - 2016]1. It uses light as the medium for high-speed data transmission.2. It is a wireless technology and is several times faster than ‘Wi-Fi’.Select the correct answer using the code given below:(a) 1 only (b) 2 only(c) Both 1 and 2 (d) Neither 1 nor 2


6. With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/are correct? [UPSC (Pre) - 2015]1. It is a contactless communication technology that uses electromagnetic radio fields.2. NFC is designed for use by devices which can be at a distance of even a meter from each other.3. NFC can use encryption when sending sensitive information.

Select the correct answer using the code given below: (a) 1 and 2 only (b) 3 only(c) 1 and 3 only (d) 1, 2 and 3


7.What is the difference between Bluetooth and Wi-Fi devices?[UPSC (Pre) - 2011]

(a) Bluetooth uses 2.4 GHz radio frequency band, whereas Wi-Fi can use 2.4 GHz or 5GHz frequency band.(b) Bluetooth is used for Wireless Local Area Networks, (WLAN) only, whereas Wi-Fi is used for Wireless Wide Area Networks (WWAN) only.(c) When information is transmitted between two devices using Bluetooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used, the devices need not be in the line of sight of each other.(d) The statements (a) and (b) given above are correct in this context.


8. Consider the following: [UPSC (Pre) - 2010]1. Bluetooth device 2. Cordless phone3. Microwave oven 4. Wi-Fi deviceWhich of the above can operate between 2.4 and 2.5 GHz range of radio frequency band?(a) 1 and 2 only (b) 3 and 4 only(c) 1, 2 and 4 only (d) 1, 2, 3 and 4 9. WiMAX is related to which one of the following? [UPSC (Pre) - 2009](a) Biotechnology(b) Space technplogy(c) Missile technology(d) Communication technology


Reference Book

UNIT-IV Chapter 15: Spectrum Policy, Broadband Policy and different recent approaches used under Information and Communication Technology and cyber security with different

recent issues in India


10. In India, it is Legally mandatory for which of the following to report on cyber security incidents ? [UPSC (Pre) 2017]

1. Service Providers 2. Data Centres3. Body corporates

Select the correct answer using the code given below: (a) 1 only (b) 1 and 2 only(c) 3only (d) 1, 2 and 3

11. ‘Project Loon’, sometimes seen in the news, is related to [UPSC (Pre) - 2016](a) Waste management technology(b) Wireless communication technology(c) Solar power production technology(d) Water conservation technology

12. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? [UPSC (Pre) - 2014]1. Iris scanning 2. Retinal scanning3. Voice recognitionSelect the correct answer using the code given below.(a) 1 only (b) 2 and 3 only(c) 1and 3 only (d) 1, 2 and 3

A Complete Solution for

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