Distributed File System - 2 - Operating System Questions & Answers

1.

What are the characteristics of Unix semantics?

   A.) Easy to implement in a single processor system
   B.) Data cached on a per process basis using write through case control
   C.) Write-back enhances access performance
   D.) All of the mentioned

Answer: Option 'D'

All of the mentioned

2.

What is a stateless file server?

   A.) It keeps tracks of states of different objects
   B.) It maintains internally no state information at all
   C.) It maintains some information in them
   D.) None of the mentioned

Answer: Option 'B'

​It maintains internally no state information at all

3.

What are the advantages of file replication?

   A.) Improves availability & performance
   B.) Decreases performance
   C.) They are consistent
   D.) Improves speed

Answer: Option 'A'

Improves availability & performance

4.

What are the characteristics of stateless server?

   A.) Easier to implement
   B.) They are not fault-tolerant upon client or server failures
   C.) They store all information file server
   D.) They are redundant to keep data safe

Answer: Option 'A'

Easier to implement

5.

What are non characteristics of session semantics?

   A.) Each client obtains a working copy from the server
   B.) When file is closed, the modified file is copied to the file server
   C.) The burden of coordinating file sharing is ignored by the system
   D.) Easy to implement in a single processor system

Answer: Option 'D'

Easy to implement in a single processor system

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