Class 10 NCO Paper 2- Achievers Section

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Question 1

Which of the following is known as minimal super key?

  • Primary key 

  • Candidate key

  • Foreign key

  • None

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Question 2

Which is AS clause used for?

  • Rename

  • Selection 

  • Join 

  • Projection 

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Question 3

How many levels are there in the architecture of the database?

  • 2

  • 3

  • 4

  • 5

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Question 4

 FIFO scheduling is a type of:
 

  • Pre-emptive scheduling


     

  • Non-pre-emptive scheduling

  • Deadline scheduling

  • None of the above


     

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Question 5

What is meant by ready state of a process?


 

  • When the process is scheduled to run after some execution


     

  • When the process is currently using the CPU


     

  • When the process is dependent on the execution time of some other process.


     

  • None of these

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There are 5 questions to complete.

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