Computer Science: Software Piracy
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Questions and Answers

How do viruses typically spread?

  • Via removable media (correct)
  • Through internet downloads
  • Through computer networks only
  • Through email attachments only

    • What type of files do direct action viruses typically attach themselves to?

  • PDF and JPEG files
  • MP3 and MP4 files
  • EXE and COM files (correct)
  • DOC and TXT files

    • What is a characteristic of direct action viruses?

  • They install themselves on a computer
  • They don't install themselves or remain hidden in a computer's memory (correct)
  • They delete files and hinder system performance
  • They remain hidden in a computer's memory

    • What is the impact of direct action viruses on a user's system?

    <p>They make some files inaccessible, but have a minimal impact on the system</p> Signup and view all the answers

    What is a characteristic of resident viruses?

    <p>They install themselves on a computer</p> Signup and view all the answers

    What type of resident viruses cause as much damage as quickly as possible?

    <p>Fast infectors</p> Signup and view all the answers

    What can resident viruses potentially do to anti-virus software?

    <p>Attach themselves to it, infecting every file it scans</p> Signup and view all the answers

    What has led to a reduction in the prevalence of viruses?

    <p>Improvements in BIOS architecture</p> Signup and view all the answers

    What is the primary consequence of software piracy for publishers?

    <p>Significant lost revenue</p> Signup and view all the answers

    What is the licensed user permitted to do with the software program?

    <p>Make copies of the software program for back-up purposes only</p> Signup and view all the answers

    What is softlifting?

    <p>Borrowing and installing a copy of a software application from a colleague</p> Signup and view all the answers

    What is the primary characteristic of a computer virus?

    <p>It is a type of malicious software program that replicates itself</p> Signup and view all the answers

    What is the consequence of client-server overuse?

    <p>Violation of copyright laws</p> Signup and view all the answers

    What is hard-disk loading?

    <p>Installing and selling unauthorized copies of software on refurbished or new computers</p> Signup and view all the answers

    What is online piracy?

    <p>Typically involves downloading illegal software from peer-to-peer network, Internet auction or blog</p> Signup and view all the answers

    What is counterfeiting?

    <p>Duplicating and selling copyrighted programs</p> Signup and view all the answers

    What type of computer virus is notoriously difficult to remove and often requires a full system format?

    <p>Boot Sector Virus</p> Signup and view all the answers

    What is the term commonly used to refer to all forms of malicious software?

    <p>Malware</p> Signup and view all the answers

    What makes multipartite viruses tough to remove?

    <p>They can simultaneously infect both the boot sector and executable files</p> Signup and view all the answers

    What is one of the reasons why people create viruses?

    <p>To demonstrate a vulnerability in software</p> Signup and view all the answers

    What is the estimated annual economic damage caused by computer viruses?

    <p>Billions of dollars</p> Signup and view all the answers

    What is unique about polymorphic viruses?

    <p>They change their signature every time they replicate</p> Signup and view all the answers

    What type of malware is a form of malicious software that demands payment in exchange for restoring access to data?

    <p>Ransomware</p> Signup and view all the answers

    What is the effect of an overwrite virus on a file?

    <p>It deletes the contents of the file</p> Signup and view all the answers

    Why do antivirus firms need to spend days or months creating detection routines for polymorphic viruses?

    <p>Because they change their signature every time they replicate</p> Signup and view all the answers

    What is a result of computer viruses infecting a system?

    <p>System failure</p> Signup and view all the answers

    What is a characteristic of multipartite viruses?

    <p>They can spread in multiple ways</p> Signup and view all the answers

    What is the term erroneously used to refer to other types of malware?

    <p>Virus</p> Signup and view all the answers

    What is a response to the threat of computer viruses?

    <p>Creating free, open-source antivirus tools</p> Signup and view all the answers

    What happens if a multipartite virus remains in the boot sector after cleaning a machine's program files?

    <p>The virus will immediately reproduce once the computer is turned on again</p> Signup and view all the answers

    What makes polymorphic viruses difficult to detect?

    <p>They change their signature every time they replicate</p> Signup and view all the answers

    What is a consequence of deleting a file infected by an overwrite virus?

    <p>The contents of the file are lost</p> Signup and view all the answers

    What happens when you open an infected document?

    <p>The macro virus is loaded into main memory and destroys the data stored in the hard disk</p> Signup and view all the answers

    How often should you update your anti-virus software?

    <p>Weekly</p> Signup and view all the answers

    What is a good practice when using floppy drives?

    <p>Empty them of diskettes before turning on computers</p> Signup and view all the answers

    What should you do when receiving unexpected email attachments?

    <p>Delete them without opening them</p> Signup and view all the answers

    Why is it important to have multiple backups of important files?

    <p>So you can lower the chance that all are infected</p> Signup and view all the answers

    Why is it important to install security updates for your operating system and programs?

    <p>So you can protect your computer from virus infections</p> Signup and view all the answers

    Study Notes

    Software Piracy

    • Software piracy is the illegal copying, distribution, or use of software, causing significant lost revenue for publishers and higher prices for consumers.
    • Most software programs are licensed for use by one user or at one computer site, and making copies of the software for anything other than backup purposes is a violation of copyright laws.
    • Types of software piracy include:
      • Softlifting: borrowing and installing a copy of a software application from a colleague
      • Client-server overuse: installing more copies of the software than licensed for
      • Hard-disk loading: installing and selling unauthorized copies of software on refurbished or new computers
      • Counterfeiting: duplicating and selling copyrighted programs
      • Online piracy: downloading illegal software from peer-to-peer networks, Internet auctions, or blogs

    Computer Viruses

    • A computer virus is a type of malicious software that replicates itself by modifying other computer programs and inserting its own code.
    • Infected computer programs can include data files, the "boot" sector of the hard drive, and other areas.
    • Computer viruses cause billions of dollars' worth of economic damage each year, due to system failure, wasted computer resources, corrupted data, and increased maintenance costs.
    • Motives for creating viruses can include seeking profit, sending a political message, personal amusement, demonstrating vulnerabilities, sabotage, and denial of service.

    Types of Viruses

    • Boot Sector Virus: infects the master boot record, making it difficult to remove, often requiring a full system format.
    • Direct Action Virus: attaches itself to a particular type of file, typically EXE or COM files, and spreads to other similar files in the directory.
    • Resident Virus: installs itself on a computer, allowing it to work even when the original source of the infection has been eradicated.
    • Multipartite Virus: spreads in multiple ways and takes different actions on an infected computer depending on variables like the operating system installed or the existence of certain files.
    • Polymorphic Virus: changes its signature (binary pattern) every time it replicates, making it difficult to detect for anti-virus programs.
    • Overwrite Virus: deletes the contents of any file it infects, requiring the file to be deleted to remove the virus.

    Actions to Prevent Virus Infection

    • Always update your anti-virus software at least weekly.
    • Back up your important files and ensure they can be restored.
    • Change the computer's boot sequence to always start the PC from its hard drive.
    • Don't share Drive C: without a password and without read-only restrictions.
    • Empty floppy drives of diskettes before turning on computers, especially laptops.
    • Forget opening unexpected e-mail attachments, even if they're from friends.
    • Get trained on your computer's anti-virus software and use it.
    • Have multiple backups of important files.
    • Install security updates for your operating system and programs as soon as possible.
    • Jump at the chance to learn more about your computer to help spot viruses.

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    Description

    This quiz covers the basics of software piracy, its effects on revenue, and licensing rules. Learn about the illegal copying, distribution, and use of software.

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