वायरस प्रायः फ्लॉपी डिस्क ड्राइव में रह गई फ्लॉपी डिस्क से आता है । 

निम्नलिखित में से कौन सबसे बड़ा जीवित पक्षी है? 

Read the following passage carefully and answer the questions given below it. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions.

In the second week of August 1998, just a few days after the incidents of bombing the US embassies in Nairobi and Dar-es-Salaam, a high-powered, brain-storming session was held near Washington D.C., to discuss various aspects of terrorism. The meeting was attended by ten of America’s leading experts in various fields such as germ and chemical warfare, public health, disease control and also by the doctors and the law-enforcing officers. Being asked to describe the horror of possible bio-attack, one of the experts narrated the following gloomy scenario. A culprit in a crowded business centre or in a busy shopping mall of a town empties a test tube containing some fluid, which in turn creates an unseen cloud of germ of a dreaded disease like anthrax capable of inflicting a horrible death within 5 days on any one who inhales it. At first 500, or so victims feel that they have mild influenza which may recede after a day or two. Then the symptoms return again and their lungs start filling with fluid. They rush to local hospitals for treatment, but the panic-stricken people may find that the Medicare services run quickly out of drugs due to excessive demand. But no one would be able to realise that a terrorist attack has occurred. One cannot deny the possibility that the germ involved would be of contagious variety capable of causing an epidemic. The meeting concluded that such attacks, apart from causing immediate human tragedy,  would have dire long-term effects on the political and social fabric of a country by way of ending people’s trust on the competence of the government. The experts also said that the bombs used in Kenya and Tanzania were of the old-fashion variety and involved quantities of high explosives, but new terrorism will prove to be more deadly and probably more elusive than hijacking an aeroplane or a gelignite of previous decades.
According to Bruce Hoffman, an American specialist on political violence, old terrorism generally had a specific manifesto - to overthrow a colonial power or the capitalist system and so on. These terrorists were not shy about planting a bomb or hijacking an aircraft and they set some limit to their brutality. Killing so many innocent people might turn their natural supporters off. Political terrorists want a lot of people watching but not a lot of people dead. “Old terrorism sought to change the world while the new sort is often practised by those who believe that the world has gone beyond redemption”, he added. Hoffman says, “New terrorism has no long-term agenda but is ruthless in its short-term intentions. It is often just a cacophonous cry of protest or an outburst of religious intolerance or a protest against the West in general and the US in particular. Its perpetrators may be religious fanatics or diehard opponent of a government and see no reason to show restraint. They are simply intent on inflicting the maximum amount of pain on the victim.”

Choose the word which is most OPPOSITE in meaning of the word printed in bold as used in the passage.
gloomy

निम्नलिखित में से कौन-सी छोटी से छोटी संख्या 2486 से घटाकर इसे पूर्ण वर्ग बनाया जा सकता है?