Computer Science Quiz

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Questions and Answers

Which area of computer science focuses on studying the means for secure communication and preventing security vulnerabilities?

  • Cryptography and computer security (correct)
  • Software engineering
  • Database theory
  • Human-computer interaction

What is central to computer science and involves the study of abstract models of computation and general classes of problems that can be solved using them?

  • Programming language theory
  • Computer graphics and computational geometry
  • Theory of computation (correct)
  • Algorithms and data structures

What area of computer science investigates the interfaces through which humans and computers interact?

  • Software engineering
  • Database theory
  • Cryptography and computer security
  • Human-computer interaction (correct)

Which discipline in computer science addresses the generation of images?

<p>Computer graphics and computational geometry (D)</p> Signup and view all the answers

Which field in computer science concerns the management of repositories of data?

<p>Database theory (B)</p> Signup and view all the answers

What is the name of the conducting coil used to record and retrieve data from the disk?

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

During a read or write operation, what is the state of the head?

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

What happens when electric pulses are sent to the write head during a write operation?

<p>Magnetic patterns are recorded on the surface below (D)</p> Signup and view all the answers

What shape is the write head made of?

<p>Rectangular doughnut with a gap along one side (A)</p> Signup and view all the answers

What induces a magnetic field across the gap in the write head?

<p>An electric current in the wire (B)</p> Signup and view all the answers

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