CURRENT AFFAIRS

2020

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
All villages are to be connected with optical fibre in how many days?
A
555 days
B
1000 days
C
1500 days
D
1200 days
Explanation: 

Detailed explanation-1: -He further added that Participation of rural India and villages in Digital India is very important for balanced development of India. To enable this we will rapidly expand our optical fibre network. This will reach all the 6 lakh villages within 1, 000 days.

Detailed explanation-2: -OS1 fiber optic cable is designed for premises where the maximum distance is 2, 000 metres with transmission speeds of 1 to 10 gigabit Ethernet. OS2 fiber optic cable is designed for larger transmission distances in the range of 5, 000 to 10, 000 metres with similar transmission speed of 1 to 10 gigabit Ethernet.

Detailed explanation-3: -Light travels down a fiber optic cable by bouncing off the walls of the cable repeatedly. Each light particle (photon) bounces down the pipe with continued internal mirror-like reflection. The light beam travels down the core of the cable. The core is the middle of the cable and the glass structure.

Detailed explanation-4: -There are two types of fibre optic cables – multimode and single-mode. Multimode optical fibre or OFC is capable of carrying multiple light rays (modes) at the same time as it has varying optical properties at the core. Single-mode fibre has a much smaller core size (9 microns).

Detailed explanation-5: -At 45, 000 km and circling the African continent, the subsea cable is the longest fiber optic cable in the world and will connect three continents: Africa, Asia, and Europe, and 33 countries across 46 landing points. It is due to go live in 2023/2024.

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