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Science, Technology and National Security Questions and Answers

11.

What is 'format war' related to :

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: A

A format war is competition for market dominance.

The term describes a contest between incompatible technical standards for the same kind of product, where each firm tries to make its format the one the whole market adopts. The classic case is VHS against Betamax in video cassettes in the late 1970s and 1980s; Blu-ray against HD DVD in the 2000s is a later one. The winner gains lasting market dominance and the loser's format dies out.

Despite the word 'war' it has nothing to do with military formations, online gaming or software for countering fake news in wartime. Those options play on the word rather than its meaning.

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12.

Which of the following does not include in Malware ?

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: A

The one that is not malware is phishing.

Malware (malicious software) is a program written to damage a system or gain unauthorised access to it. Spyware secretly collects information about a user, a virus attaches itself to other files and spreads when they are run, and a worm copies itself across networks on its own. All three are kinds of malicious software.

Phishing is a social-engineering technique, not a program. It uses fraudulent e-mails or websites that pretend to come from a trusted source to trick people into revealing passwords or card details. A phishing message may carry malware, but phishing itself is a method of deception, so it is the odd one out.

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13.

................... type of software designed to gain unauthorised access or to cause damage to a computer.

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: C

The software described is malware.

Malware is the general name for any software designed to gain unauthorised access to a computer or to cause damage to it. The definition in the stem is the definition of the whole category.

The other options are narrower. Ransomware is one kind of malware, which locks or encrypts data and demands payment. Stuxnet is one particular worm, discovered in 2010, that attacked the centrifuges of Iran's nuclear programme. SQL injection is not software at all but an attack technique in which malicious database commands are typed into a website's input fields.

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14.

Which of the following softwares is mainly designed to extort money ?

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: C

Software designed mainly to extort money is ransomware.

Ransomware encrypts a victim's files or locks the system and demands a ransom, usually in cryptocurrency, for the key that restores access. WannaCry in 2017, which hit hospitals, banks and firms in some 150 countries, is the best-known example.

Malware is the broad category that includes ransomware, but most malware is not designed to extort money. Stuxnet was a sabotage worm aimed at Iranian centrifuges and asked for no payment. Norton is a well-known antivirus product, which protects against such software.

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15.

.................... the practise of sending fraudulent e-mails from reputable sources.

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: D

The practice is phishing.

Phishing means sending fraudulent e-mails that pretend to come from reputable sources, such as banks, tax departments or well-known companies, in order to make the recipient reveal passwords, card numbers or other personal data, or click a malicious link. The name plays on 'fishing': the message is bait.

E-mail spam and junk mail are unsolicited bulk messages, usually advertising, which need not pretend to come from a trusted sender. An e-mail bomber floods a single address with huge numbers of messages to overwhelm it. Neither involves impersonating a reputable source to deceive the reader.

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Answer: A

SASE stands for the Snow and Avalanche Study Establishment.

SASE is a laboratory of the Defence Research and Development Organisation (DRDO), based at Chandigarh with field stations in the Himalaya. It studies snow cover and forecasts avalanches so that troops posted in high-altitude areas such as Siachen and the Kashmir passes can move safely, and it develops avalanche-control measures.

The other expansions are invented. There is no 'South Asian Snow Establishment', no defence body called 'South African Studies on Environment', and no 'Snow and Strategy Establishment'.

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17.

What type of missile is Ashwin ?

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: B

Ashwin is an Advanced Air Defence interceptor missile.

It is the endo-atmospheric interceptor of India's Ballistic Missile Defence programme, developed by DRDO. The Advanced Air Defence (AAD) missile engages incoming ballistic missiles at low altitudes inside the atmosphere, and it was given the name Ashwin after successful tests in 2017. The Prithvi Defence Vehicle handles interception at higher altitudes.

India's intercontinental ballistic missile is Agni-V, its cruise missiles are BrahMos and Nirbhay, and its anti-tank missiles are the Nag family. Ashwin is none of these.

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18.

Statement-(1) e-governance means government of internet.
Statement-(2) e-governance means use of technology by government to perform its duties.

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: B

Statement No. 2 is correct.

E-governance is the use of information and communication technology by government to perform its functions and deliver services: online applications and payments, digital records, and electronic communication between government, citizens and businesses. India's National e-Governance Plan of 2006 is an example.

Statement 1 is wrong, because e-governance is not the government of the internet; regulating the internet is internet governance, a different subject. Since Statement 2 is right, 'Statements 1 and 2 are wrong' and 'None of the above' are wrong too.

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19.

Digital Revolution is known as :

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: B

The Digital Revolution is known as the Third Industrial Revolution.

The usual sequence is: the First Industrial Revolution of steam power and mechanised production from the late eighteenth century; the Second, of electricity, steel and mass production from the late nineteenth century; and the Third, from the 1950s onwards, of electronics, computers and digital technology. The Fourth, a term made popular by Klaus Schwab in 2016, adds artificial intelligence, robotics and cyber-physical systems.

So the digital revolution is the third, not the second, and the option calling it both cannot be right.

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20.

Who is the author of the book "The Third Industrial Revolution" ? How lateral power is transforming energy, the economy and the world ?

Exam Year(s)

MH SET - 2019, SET Exam - 2019,

Answer: A

The author is Jeremy Rifkin.

Rifkin, an American economic and social theorist, published The Third Industrial Revolution: How Lateral Power Is Transforming Energy, the Economy, and the World in 2011. He argues that renewable energy and the internet are combining into a new economic order of distributed, 'lateral' power, and the European Union took up the idea.

Nicholas Georgescu-Roegen was the Romanian-American economist of The Entropy Law and the Economic Process (1971). Stephen Jay Gould was a palaeontologist and writer on evolution. Neither wrote this book, so 'None of the above' is wrong as well.

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