What is ‘separation’ in security of Operating systems?

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What is ‘separation’ in security of Operating systems?

1.To have separate login for different users

2. To have separate Hard disk drive/partition for different users

3.It means keeping one user’s objects separate from other users

4. none of the mentioned

Posted Date:-2022-03-30 07:21:48

More MCQS Questions and answers

  1. A tape holds _______ data than optical or magnetic disk cartridge.
  2. For a domain _______ is a list of objects together with the operation allowed on these objects.
  3. When an attempt is to make a machine or network resource unavailable to its intended users, the attack is called __________
  4. _____ is an approach to restricting system access to authorized users.
  5. A single parity bit can be used for _________
  6. A typical tape drive is ________ a typical disk drive.
  7. Access matrix model for user authentication contains ______
  8. Floppy disks are examples of _______
  9. For system protection, a process should access _______
  10. Global table implementation of the matrix table contains _______
  11. If the set of resources available to the process is fixed throughout the process’s lifetime then its domain is _______
  12. In domain structure what is Access-right equal to?
  13. In UNIX, domain switch is accomplished via ________
  14. Optical disks ______ magnetism.
  15. RAID level ______ is also known as bit interleaved parity organisation.
  16. RAID level ______ is also known as memory style error correcting code(ECC) organization.
  17. RAID level _______ refers to disk mirroring.
  18. RAID level ________ refers to disk arrays with striping at the level of blocks, but without any redundancy.
  19. RAID level 3 does not have _________ as in RAID level 1.
  20. Random access to tape is _______ a disk seek.
  21. s use different physical objects like separate printers ii) cryptographic separation – in which process having different security requirement at different times iii) Logical separation – In which users operate under illusion that no other processes exist iv) cryptographic separation – In which processes conceal their data and computations
  22. Tertiary storage is built with _____
  23. The code segment that misuses its environment is called a _______
  24. The internal code of any software that will set of a malicious function when specified conditions are met, is called ________
  25. The magneto-optic head flies ___________ the disk surface than a magnetic disk head does.
  26. The mean time to failure of a mirrored disk depends on ____________ I) the mean time to failure of individual disks II) the mean time to repair
  27. The pattern that can be used to identify a virus is known as ______
  28. The phase change disk is coated with a material that can freeze into either _______ or ________ state.
  29. The protection domain of a process contains ______
  30. The surface area of tape is ________ the surface area of a disk.
  31. What are the three additional operations to change the contents of the access-matrix?
  32. What are the three copyrights?
  33. What are the various roles of protection?
  34. What does the access matrix represent?
  35. What is a magneto-optic disk?
  36. What is a trap door in a program?
  37. What is ‘separation’ in security of Operating systems?
  38. What is Domain?
  39. What is meaning of right-set?
  40. Which is an unsolvable problem in access-matrix?
  41. Which of the following objects require protection?
  42. Which of the following objects require protection?
  43. Which of the following statements are correct? i) Physical separation – in which process use different physical objects like separate printers ii) Physical separation – in which process having different security requirement at different times iii) Logical separation – In which users operate under illusion that no other processes exist iv) Logical separation – In which processes conceal their data and computations
  44. Which of the following statements are correct? i) Physical separation – in which process use different physical objects like separate printers ii) Temporal separation – in which process having different security requirement at different times iii) Physical separation – In which users operate under illusion that no other processes exist iv) Temporal separation – In which processes conceal their data and computations
  45. Which one of the following is a process that uses the spawn mechanism to revage the system performance?
  46. Which one of the following is capability based protection system?
  47. Which principle states that programs, users and even the systems be given just enough privileges to perform their task?
  48. Which two rights allow a process to change the entries in a column?
  49. Who can add new rights and remove some rights?
  50. WORM stands for ______
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