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A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.
Q. How do virus writers gain access to computing resources ?
  • a)
    By executing malwares
  • b)
    By employing a variety of mechanisms
  • c)
    By using social engineering
  • d)
    By affecting computing networks
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A computer virus is a type of malware that, when executed, replicates ...
How do virus writers gain access to computing resources?

Social Engineering:
Virus writers often use social engineering techniques to trick users into installing malware on their systems. This could involve sending phishing emails, creating fake websites, or impersonating trusted entities to deceive users into downloading malicious software.

Exploiting Security Vulnerabilities:
Virus writers exploit detailed knowledge of security vulnerabilities in software and operating systems. They may exploit loopholes in outdated software, weak passwords, or unsecured network connections to gain access to computing resources.

Creating Backdoors:
Some virus writers create backdoors in systems, allowing them to bypass security measures and gain unauthorized access to computing resources. These backdoors can be used to remotely control infected systems, steal sensitive data, or launch further attacks.

Using Remote Access Tools:
Virus writers may use remote access tools to gain access to computing resources. These tools allow attackers to remotely control infected systems, view and manipulate files, and carry out malicious activities without the user's knowledge.

Exploiting Zero-Day Vulnerabilities:
Zero-day vulnerabilities are security flaws that are unknown to the software vendor and have not been patched. Virus writers may exploit these vulnerabilities to gain access to computing resources before a fix is released, making it difficult for antivirus software to detect and prevent attacks.
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Directions: Read the passage carefully and select the best answer to the question out of the given four alternatives.There is exciting news for butterfly enthusiasts. By studying 207 species of butterflies, scientists have created an evolutionary tree painting the detailed picture of butterfly relationships and evolution over time.An international team of lepidopterists carried out DNA studies and carbon dating analysis to understand the age and characteristics of butterflies. By comparing and merging previous studies on butterflies, the researchers were able to create the new bigger and better evolutionary tree."We still have a long way to go, but this is the first comprehensive map of butterfly evolution," said Akito Y. Kawahara, associate professor at the Florida Museum of Natural History in a release. "Lots of previous studies cover butterfly evolution on smaller scales — by locality or taxon — but surprisingly few have reached across the breadth of butterfly diversity." Dr. Kawahara is the corresponding author of the paper published in Current Biology.The report also supported previous studies that butterflies originated around 119 million years ago in the late Cretaceous period. After the mass extinction (65 million years ago), most of the butterflies diverged into many different groups. The butterfly species were placed in seven groups — Papilionidae, Hedylidae, Hesperiidae, Pieridae, Riodinidae, Lycaenidae and Nymphalidae."Our analyses support swallowtails (Papilionida e) as sister to all other butterflies, followed by skippers (Hesperiidae) and the nocturnal butterflies (Hedylidae) as sister to the remainder," says the report.The whites (Pieridae) were supported as sister to brush-footed butterflies (Nymphalidae), blues and metalmarks (Lycaenidae and Riodinidae). Previously, swallowtails and birdwings were believed to have a common ancestor but the new study showed that they feed on different plants. "That tells us that butterflies and plants may have evolved together," Dr.Kawahara added. They also studied the association of butterflies with ants. Some butterfly larvae secrete sugars that serve as a meal for ants and the ant in return protects the larva from other predators. This is a well-studied symbiotic relationship. The scientists report that most of the blue butterflies and hairstreaks and some of the metalmark butterflies exhibit this behaviour. "We [India] have about one fifth of the known moths and butterflies represented in Indian collections (3,800 out of an estimated 20,000 species). The only way they could undertake the study was the fact that they have access to a good collection. We lack this in India," explained Smetacek.Q. Which group of butterflies along with birdwings feed on different plants which were believed to have common ancestor in past?

Directions: Read the passage carefully and select the best answer to the question out of the given four alternatives.There is exciting news for butterfly enthusiasts. By studying 207 species of butterflies, scientists have created an evolutionary tree painting the detailed picture of butterfly relationships and evolution over time.An international team of lepidopterists carried out DNA studies and carbon dating analysis to understand the age and characteristics of butterflies. By comparing and merging previous studies on butterflies, the researchers were able to create the new bigger and better evolutionary tree."We still have a long way to go, but this is the first comprehensive map of butterfly evolution," said Akito Y. Kawahara, associate professor at the Florida Museum of Natural History in a release. "Lots of previous studies cover butterfly evolution on smaller scales — by locality or taxon — but surprisingly few have reached across the breadth of butterfly diversity." Dr. Kawahara is the corresponding author of the paper published in Current Biology.The report also supported previous studies that butterflies originated around 119 million years ago in the late Cretaceous period. After the mass extinction (65 million years ago), most of the butterflies diverged into many different groups. The butterfly species were placed in seven groups — Papilionidae, Hedylidae, Hesperiidae, Pieridae, Riodinidae, Lycaenidae and Nymphalidae."Our analyses support swallowtails (Papilionida e) as sister to all other butterflies, followed by skippers (Hesperiidae) and the nocturnal butterflies (Hedylidae) as sister to the remainder," says the report.The whites (Pieridae) were supported as sister to brush-footed butterflies (Nymphalidae), blues and metalmarks (Lycaenidae and Riodinidae). Previously, swallowtails and birdwings were believed to have a common ancestor but the new study showed that they feed on different plants. "That tells us that butterflies and plants may have evolved together," Dr.Kawahara added. They also studied the association of butterflies with ants. Some butterfly larvae secrete sugars that serve as a meal for ants and the ant in return protects the larva from other predators. This is a well-studied symbiotic relationship. The scientists report that most of the blue butterflies and hairstreaks and some of the metalmark butterflies exhibit this behaviour. "We [India] have about one fifth of the known moths and butterflies represented in Indian collections (3,800 out of an estimated 20,000 species). The only way they could undertake the study was the fact that they have access to a good collection. We lack this in India," explained Smetacek.Q. When did the mass extinction of butterflies happen?

Read the given passage and answer the following questions:-Research conducted by the Nature Conservation Council (NCC) and WWF Australia has found that the koala habitat, which is the size of 14 football fields, is being bulldozed every day in one part of the New South Wales state since the government weakened the laws. This might lead to their extinction by 2050. New South Wales and Queensland Koalas have been listed as vulnerable to extinction under national and state laws. More than 5,000 hectares of koala habitat have been cleared in just one year in north-central NSW. "The area where this habitat destruction has occurred is one of the most heavily cleared in the state, with only 6 percent of forest remaining while an additional 11 percent was in sparse woodlands," said NCC CEO Kate Smolski.Since European colonization, koalas, which have been living in Australia for 25 million years, have lost their habitats due to urban, agricultural, and mining development, climate change, and the commercialization of their skins until the 1930s. The state government 2017 decided to repeal the Native Vegetation Act 2003, which prevented farmers from felling trees. The report concludes that this was likely the primary reason behind the dramatic surge in the forest and woodland destruction in this known clearing hotspot. The koalas are threatened by the destruction of food and shelter trees and forest fragmentation, which exposes them to higher mortalities from vehicle strikes, dog attacks, and stress. In some areas, koalas have also died due to Chlamydia, a bacterial infection that causes injuries to the genitals and eyes, causing infertility and blindness, slowly consuming them to death. WWF Australia estimates there are likely less than 20,000 koalas left in NSW and at the current rate, they are on track to be extinct in the state.Q. Which of the following statement/s is/are correct:-A. By 2050, this might cause Koalas to become extinct.B. The loss of food and shelter trees as well as forest fragmentation pose threats to koalas.C. Chlamydia, a bacterial infection that damages the eyes and genitalia in animals, has also claimed the lives of koalas.

Read the given passage and answer the following questions:-Research conducted by the Nature Conservation Council (NCC) and WWF Australia has found that the koala habitat, which is the size of 14 football fields, is being bulldozed every day in one part of the New South Wales state since the government weakened the laws. This might lead to their extinction by 2050. New South Wales and Queensland Koalas have been listed as vulnerable to extinction under national and state laws. More than 5,000 hectares of koala habitat have been cleared in just one year in north-central NSW. "The area where this habitat destruction has occurred is one of the most heavily cleared in the state, with only 6 percent of forest remaining while an additional 11 percent was in sparse woodlands," said NCC CEO Kate Smolski.Since European colonization, koalas, which have been living in Australia for 25 million years, have lost their habitats due to urban, agricultural, and mining development, climate change, and the commercialization of their skins until the 1930s. The state government 2017 decided to repeal the Native Vegetation Act 2003, which prevented farmers from felling trees. The report concludes that this was likely the primary reason behind the dramatic surge in the forest and woodland destruction in this known clearing hotspot. The koalas are threatened by the destruction of food and shelter trees and forest fragmentation, which exposes them to higher mortalities from vehicle strikes, dog attacks, and stress. In some areas, koalas have also died due to Chlamydia, a bacterial infection that causes injuries to the genitals and eyes, causing infertility and blindness, slowly consuming them to death. WWF Australia estimates there are likely less than 20,000 koalas left in NSW and at the current rate, they are on track to be extinct in the state.Q. What were the implications of the state government loosening the laws?

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A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer?
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A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer? for SSC CGL 2024 is part of SSC CGL preparation. The Question and answers have been prepared according to the SSC CGL exam syllabus. Information about A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC CGL 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC CGL. Download more important topics, notes, lectures and mock test series for SSC CGL Exam by signing up for free.
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Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A computer virus is a type of malware that, when executed, replicates by inserting copies of itself into other computer programs, data files, or the boot sector of the hard drive. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. 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However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without the user’s consent. Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their host’s computing resources. The vast majority of viruses (over 99%) target systems running Microsoft Windows employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Q.How do virus writers gain access to computing resources ?a)By executing malwaresb)By employing a variety of mechanismsc)By using social engineeringd)By affecting computing networksCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice SSC CGL tests.
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