Access Matrix MCQ

Test your knowledge with important Access Matrix MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Access Matrix MCQs at Bissoy

• What are the various roles of protection?
  ক

  It is used to detect errors which can prevent contamination of system

  খ

  It is used used to accelerate a process

  গ

  It is used to optimize system downtime

  ঘ

  None of the mentioned
• 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
  ক

  i

  খ

  i and ii

  গ

  ii and iii

  ঘ

  iii and iv
• 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
  ক

  i

  খ

  i and iii

  গ

  ii and iii

  ঘ

  iii and iv
• What is ‘separation’ in security of Operating systems?
  ক

  To have separate login for different users

  খ

  To have separate Hard disk drive/partition for different users

  গ

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

  ঘ

  None of the mentioned
• Which of the following objects require protection?
  ক

  CPU

  খ

  Printers

  গ

  Motherboard

  ঘ

  All of the mentioned
• Which is an unsolvable problem in access-matrix?
  ক

  Owner override

  খ

  Brute force

  গ

  Access denied

  ঘ

  Confinement
• Which two rights allow a process to change the entries in a column?
  ক

  copy and transfer

  খ

  copy and owner

  গ

  owner and transfer

  ঘ

  deny and copy
• What are the three copyrights?
  ক

  copy

  খ

  transfer

  গ

  limited copy

  ঘ

  all of the mentioned
• Who can add new rights and remove some rights?
  ক

  copy

  খ

  transfer

  গ

  limited copy

  ঘ

  owner
• What are the three additional operations to change the contents of the access-matrix?
  ক

  copy

  খ

  Owner

  গ

  control

  ঘ

  all of the mentioned
• What does the access matrix represent?
  ক

  Rows-Domains, Columns-Objects

  খ

  Rows-Objects, Columns-Domains

  গ

  Rows-Access List, Columns-Domains

  ঘ

  Rows-Domains, Columns-Access list
• What is Domain?
  ক

  Domain = Set of all objects

  খ

  It is a collection of protection policies

  গ

  Domain= set of access-rights

  ঘ

  None of the mentioned
• What is meaning of right-set?
  ক

  It is a subset consist of read and write

  খ

  It is a subset of all valid operations that can be performed on the object

  গ

  It is a subset consist of read, write and execute

  ঘ

  None of the mentioned
• In domain structure what is Access-right equal to?
  ক

  Access-right = object-name, rights-set

  খ

  Access-right = read-name, write-set

  গ

  Access-right = read-name, execute-set

  ঘ

  Access-right = object-name, execute-set