Operating System Basics Questions and Answers

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Q261
In soft real time tasks
  • A The dead line is always mandatory.
  • B The dead line is desirable butnot mandatory
  • C The results are indepedent of the time, when it took place.
  • D None of these
Answer: Option B
Q262
In real time scheduling: A: Static table driven approach, B: Static priority driven preemptive approach, C: Dynamic planning based approach; 1- A static analysis of feasible scheduler of dispatching is done and implemented. 2- A dispatching is done and assigns priorities to tasks. 3- Feasibility is determined at run time
  • A A-1, B-2, C-3
  • B A-2, B-3, C-1
  • C A-3, B-1, C-2
  • D None of these
Answer: Option A
Q263
Match the following I/O devices : A-Keybord, 1- Human readable, B- Disk and tape drives, 2- Communication, C- Moderms, 3-Machine readable
  • A A-1, B-3, C-2
  • B A-1, B-2, C-3
  • C A-3, B-2, C-1
  • D A-2, B-1, C-3
Answer: Option A
Q264
Arrange the following I/O device in increasing data rate Hard disk, Floppy disk, Key board
  • A Key Board, Floppy disk, Key board
  • B Floppy disk, Key, board, Hard disk
  • C Key board, Hard disk, Floppy disk
  • D Hard disk, Floppy disk, Key board
Answer: Option A
Q265
Resident set of process is
  • A Portion of a process that is actually in main memory at any time.
  • B Portion of a process that is actually in virtually memory at any time.
  • C A and b both true.
  • D None of these
Answer: Option A
Q266
Main memory is referred as
  • A Virtual memory
  • B Real memory
  • C A and B both
  • D None of these
Answer: Option B
Q267
Main memory is referred as
  • A Virtual memory
  • B Real memory
  • C A and B both
  • D None of these
Answer: Option B
Q268
Memory that is located on the disk either Hard or floppy is referred as
  • A Virtual memory
  • B Real memory
  • C Main memory
  • D None of these
Answer: Option A
Q269
The principle of locality states
  • A The program and data references within a process tend to cluster.
  • B The program and data references within a process do not tend to cluster.
  • C A process actually referred in virtual memory
  • D None of these
Answer: Option A
Q270
In Windows operating system the ________________ is the main screen area that one sees after he turn on a computer and log on to windows.
  • A Desktop
  • B Icons
  • C Taskbar
  • D None of these
Answer: Option A

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