Operating System Basics Questions and Answers

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Q461
Application programming interface is
  • A A set of function and call programs that allows clients and servers to intercommunicate.
  • B A database, where information access is limited to the selection of rows that satisfy all search criteria.
  • C A computer usually a high powered work station.
  • D None of these.
Answer: Option A
Q462
If in a computer networking environment when all the processing is done on single computer can be referred as
  • A Host based processing
  • B Server based proessing
  • C Client based processing
  • D None of these
Answer: Option A
Q463
In three tier client/server architecture application software match the following: A- user machine, 1-Client, B- Middle-tier, 2-Application server, C-Backend server, 3-data servers.
  • A A -1, B - 2, C - 3
  • B A - 1, B - 3, C - 2
  • C A - 2, B - 1, C - 3
  • D A - 3, B - 2, C - 1
Answer: Option A
Q464
UNIX was developed by
  • A Bell labs for PDP-7 in 1970
  • B Microsoft for IBM computers
  • C Macintosh
  • D None of these
Answer: Option A
Q465
UNIX is a
  • A Operating system
  • B hardware
  • C Programming language
  • D None of these
Answer: Option A
Q466
In UNIX process management, the system process runs in
  • A Kernel mode only
  • B Kernel and user mode both
  • C User mode only
  • D None of these .
Answer: Option A
Q467
In UNIX process management, the user processes runs in
  • A Kernel mode only
  • B Kernel and user mode both
  • C User mode only
  • D None of these
Answer: Option B
Q468
In UNIX process management, the following is true
  • A User process enters kernel mode by issuing a system call when interrupt occurs.
  • B kernel mode is executed in user process.
  • C User process enters kernel mode with out issuing a system call when interrupt occurs.
  • D None of these
Answer: Option A
Q469
The number of process states recognized by UNIX
  • A Two
  • B Nine
  • C Eight
  • D Seven
Answer: Option B
Q470
In process management of UNIX system. which of the following process states are running states in respect of whether the process is executing in user or kernel mode
  • A Ready to run (in memory)stage
  • B Ready to run (in swappe(D) state
  • C Preempted state
  • D A and C are true
Answer: Option D

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