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Which is single user operating system

  • MS-DOS
  • UNIX
  • XENIX
  • LINUX

Answer: Option A

Similar Questions :

1. Which technique is used by operating systems to execute several programs concurrently by switching back and forth

  • Partitioning
  • Multitasking
  • Windowing
  • Paging

Answer: Option C

2. Dirty bit is used to show

  • Page with corrupted data
  • Wrong page in memory
  • Page that is modified after being loaded in the cache memory
  • page that is less frequently accessed

Answer: Option C

3. A public key encryption system

  • Allows only the correct sender to decode the data
  • Allows only the correct receiver to decode the data
  • Allows anyone to decode the data
  • none of above

Answer: Option B

4. Which one is true

  • The linkage editor is used to edit programs which have to later link together
  • The linkage editor links object module during compiling
  • The linkage editor links objects modules and resolves external references between them before loading
  • none of above

Answer: Option C

5. A thread is

  • lightweight process where the context switching is low
  • lightweight process where the context swithching is high
  • used to speed up paging
  • used in dead locks

Answer: Option A

Read more from - Operating System Questions Answers - Chapter 1
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