Types of Computer Viruses

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Questions and Answers

What type of virus attaches itself to executable files and spreads when the infected file is executed?

  • File Infector Viruses (correct)
  • Macro Viruses
  • Resident Viruses
  • Boot Sector Viruses

Which type of virus infects the master boot record of a computer's hard drive or removable storage?

  • Metamorphic Viruses
  • Boot Sector Viruses (correct)
  • Polymorphic Viruses
  • Resident Viruses

In which type of files are macro viruses typically found?

  • Audio files
  • Executable files
  • Image files
  • Documents or spreadsheets (correct)

Which type of virus changes its code to avoid detection by antivirus programs?

<p>Metamorphic Viruses (B)</p> Signup and view all the answers

What do resident viruses do after embedding themselves in the computer's memory?

<p>Infect files as they are opened, closed, or executed (C)</p> Signup and view all the answers

What makes polymorphic viruses challenging to identify consistently?

<p>They change their code to avoid detection (D)</p> Signup and view all the answers

Which type of virus embeds itself in the computer's memory?

<p>Resident virus (A)</p> Signup and view all the answers

Which type of virus is activated when an infected file is executed?

<p>Non-resident virus (C)</p> Signup and view all the answers

Which type of virus uses multiple methods to infect a system?

<p>Multiparite virus (C)</p> Signup and view all the answers

Which malware encrypts a user's files and demands payment for the decryption key?

<p>Ransomware (D)</p> Signup and view all the answers

Which type of malicious software collects information about a user's activities or displays unwanted advertisements?

<p>Adware (C)</p> Signup and view all the answers

Which type of malicious software disguises itself as legitimate software but contains malicious code?

<p>Trojan horse (B)</p> Signup and view all the answers

Which term refers to the transfer of digital signals over a communication channel?

<p>Digital Communication (C)</p> Signup and view all the answers

What determines the effectiveness of Data Communication?

<p>Accuracy of transfer (D)</p> Signup and view all the answers

In which type of communication do we share facts, ideas, etc. in mutually agreed-upon language and speed with maximum accuracy?

<p>Data Communication (C)</p> Signup and view all the answers

What does Data Communication encompass the transfer of between two points?

<p>Any type of data (D)</p> Signup and view all the answers

Which term is closer to the type and process of sharing involved during communication?

<p>Data Communication (C)</p> Signup and view all the answers

Which term specifically refers to the transfer of digital signals over a communication channel?

<p>Digital Communication (D)</p> Signup and view all the answers

What does the term 'Message' refer to in data communication?

<p>The data or information to be exchanged between two points (C)</p> Signup and view all the answers

What is the role of the 'Source Encoder' in digital communication?

<p>To compress the digitized signal data to minimize the number of bits (D)</p> Signup and view all the answers

What is the function of the 'Input Transducer' in digital communication?

<p>To convert a physical input from the point of source into an electrical signal (D)</p> Signup and view all the answers

What is responsible for the physical transfer of data and information through a suitable communication channel in digital communication?

<p>Transmission Medium (C)</p> Signup and view all the answers

What is the primary purpose of 'Protocol' in data communication?

<p>To establish rules that govern the entire exchange process between sender and receiver (B)</p> Signup and view all the answers

Which component performs the task of converting analog signals into binary numbers, i.e. 0s and 1s in digital communication?

<p>Input Transducer (A)</p> Signup and view all the answers

What type of data origin can be considered as a 'Source' in digital communication?

<p>Any point of data origin offering a piece of information that may be analog or digital (A)</p> Signup and view all the answers

What role does 'Sender' play in data communication?

<p>It is intended to send the information being transferred or communicated (C)</p> Signup and view all the answers

What is responsible for governing the entire exchange process between sender and receiver in data communication?

<p>'Protocol' - rules agreed upon between sender and receiver which govern the entire exchange process (B)</p> Signup and view all the answers

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