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Question 1 of 5
1. Question
Consider the following statements regarding Goldilocks zone.
- Goldilocks zone, is the area around a star where it is not too hot and not too cold for liquid water to exist on the surface of surrounding planets.
- Earth is the only planet in the Sun’s Goldilocks zone.
- If a planet is in the Goldilocks Zone of a star, it necessarily means the planet is going to have life or liquid water.
Which of the above statements is/are correct?
Correct
Solution: a)
The Goldilocks Zone refers to the habitable zone around a star where the temperature is just right – not too hot and not too cold – for liquid water to exist on a planet.
Just because a planet or moon is in the Goldilocks Zone of a star, doesn’t mean it’s going to have life or even liquid water.
After all, Earth isn’t the only planet in the Sun’s Goldilocks Zone – Venus and Mars are also in this habitable zone, but aren’t currently habitable.
Incorrect
Solution: a)
The Goldilocks Zone refers to the habitable zone around a star where the temperature is just right – not too hot and not too cold – for liquid water to exist on a planet.
Just because a planet or moon is in the Goldilocks Zone of a star, doesn’t mean it’s going to have life or even liquid water.
After all, Earth isn’t the only planet in the Sun’s Goldilocks Zone – Venus and Mars are also in this habitable zone, but aren’t currently habitable.
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Question 2 of 5
2. Question
Consider the following statements regarding Low Earth Orbit (LEO).
- It is an Earth-centered orbit with an altitude of 2,000 km or less.
- The International Space Station conducts operations in LEO.
- Major disadvantage of low Earth orbit is that it requires high amount of energy for placing the satellites.
Which of the above statements is/are incorrect?
Correct
Solution: c)
Low earth orbit refers to an altitude up to 2,000 km or less. A satellite in the LEO can monitor activities on the ground and water surfaces.
A low Earth orbit requires the lowest amount of energy for satellite placement. It provides high bandwidth and low communication latency. Satellites and space stations in LEO are more accessible for crew and servicing.
Earth observation satellites and spy satellites use LEO as they are able to see the surface of the Earth clearly by being close to it.
The International Space Station is in a LEO about 330 km to 420 km above Earth’s surface.
Incorrect
Solution: c)
Low earth orbit refers to an altitude up to 2,000 km or less. A satellite in the LEO can monitor activities on the ground and water surfaces.
A low Earth orbit requires the lowest amount of energy for satellite placement. It provides high bandwidth and low communication latency. Satellites and space stations in LEO are more accessible for crew and servicing.
Earth observation satellites and spy satellites use LEO as they are able to see the surface of the Earth clearly by being close to it.
The International Space Station is in a LEO about 330 km to 420 km above Earth’s surface.
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Question 3 of 5
3. Question
Consider the following statements regarding ‘Quantum Supremacy’.
- When quantum computers are being able to solve a problem that a classical computer can’t, it is said to have achieved quantum supremacy.
- It also denotes domination of countries who have successfully developed quantum computers.
Which of the above statements is/are correct?
Correct
Solution: a)
Quantum Supremacy describes the point where quantum computers can do things that classical computers cannot.
Google had announced in 2019 that they achieved quantum supremacy in computing through Sycamore.
Incorrect
Solution: a)
Quantum Supremacy describes the point where quantum computers can do things that classical computers cannot.
Google had announced in 2019 that they achieved quantum supremacy in computing through Sycamore.
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Question 4 of 5
4. Question
Dark fibre is
Correct
Solution: d)
A dark fibre or unlit fibre is an unused optical fibre, available for use in fibre-optic communication. Dark fibre may be leased from a network service provider.
Dark fibre is the extra optical fibre laid by companies in order to avoid cost repetition when more bandwidth is needed.
Incorrect
Solution: d)
A dark fibre or unlit fibre is an unused optical fibre, available for use in fibre-optic communication. Dark fibre may be leased from a network service provider.
Dark fibre is the extra optical fibre laid by companies in order to avoid cost repetition when more bandwidth is needed.
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Question 5 of 5
5. Question
The term ‘Data Scraping’ sometimes seen in news, rightly denotes
Correct
Solution: c)
Data scraping, or web scraping, is the process of extracting data from a website. Scraper bots are designed to derive information from these websites. A user designing a bot to extract data is called a scraper.
Incorrect
Solution: c)
Data scraping, or web scraping, is the process of extracting data from a website. Scraper bots are designed to derive information from these websites. A user designing a bot to extract data is called a scraper.
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