πŸ“Š Operating System Architecture
Q. What is an internal command in Unix ?
  • (A) commands that are executed directly by the kernel
  • (B) commands that are executred directly by the shell
  • (C) commands that are executed directly by shell and kernel
  • (D) commands will have a process id running for it
πŸ’¬ Discuss
βœ… Correct Answer: (B) commands that are executred directly by the shell
πŸ“Š Operating System Architecture
Q. What is major device number ?
  • (A) it is an index to the kernel table that contains the address of all device driver functions known to the system
  • (B) it is an index to theuser process table that contains the address of all device driver functions known to the system
  • (C) it is an index to the kernel table that contains the address of all files
  • (D) it is an index to the kernel table that contains the address of all directories
πŸ’¬ Discuss
βœ… Correct Answer: (A) it is an index to the kernel table that contains the address of all device driver functions known to the system
πŸ“Š Operating System Architecture
Q. What does OSS stand for
  • (A) open system software
  • (B) original source software
  • (C) open source software
  • (D) original system server
πŸ’¬ Discuss
βœ… Correct Answer: (C) open source software
πŸ“Š Operating System Architecture
Q. While providing a text processing system for the patent department at bell labs,the unix system was moved to in 1971
  • (A) pdp-6
  • (B) pdp-7
  • (C) pdp-9
  • (D) pdp-11
πŸ’¬ Discuss
βœ… Correct Answer: (D) pdp-11
πŸ“Š Operating System Architecture
Q. What is minor device number
  • (A) it tells the device driver function what actual physical device it is talking
  • (B) it tells the device driver functionwhat actual physiacl device it is talking to and i/0 buffernig scheme to be used for reading
  • (C) it tells the device driver functionwhat actual physical device it is talking to and i/0 buffernig scheme to be used for writing
  • (D) it tells the device driver functionwhat actual physiacl device it is talking to and i/0 buffernig scheme to be used for data transfer
πŸ’¬ Discuss
βœ… Correct Answer: (D) it tells the device driver functionwhat actual physiacl device it is talking to and i/0 buffernig scheme to be used for data transfer
πŸ“Š Operating System Architecture
Q. What is directory hierarchy ?
  • (A) it is an organizational structure in which directories can contain files and other sub directories
  • (B) it is an organizational structure in which directories can contain only files
  • (C) it is an organizational structure in which directories can contain only sub directories
  • (D) it is an organizational structure in which directory contains only one level
πŸ’¬ Discuss
βœ… Correct Answer: (A) it is an organizational structure in which directories can contain files and other sub directories

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