DS CO4

If timestamps of two events are same, then the events are ____________

• a)concurrent
  

• b) non-concurrent
  

• c) monotonic
  

• d) non-monotonic

In distributed systems, a logical clock is associated with ______________

• a) each instruction
  

• b) each process
  

• c) each register
  

• d) none of the mentioned

In the token passing approach of distributed systems, processes are organized in a ring structure ____________

• a)logically
  

• b) physically
  

• c) both logically and physically
  

• d) none of the mentioned

If a process is executing in its critical section ____________

• a) any other process can also execute in its critical section
  

• b) no other process can execute in its critical section
  

• c) one more process can execute in its critical section
  

• d) none of the mentioned

For proper synchronization in distributed systems ____________

• a) prevention from the deadlock is must
  

• b) prevention from the starvation is must
  

• c) prevention from the deadlock & starvation is must
  

• d) none of the mentioned

In distributed systems, what will the transaction coordinator do?

• a) starts the execution of transaction
  

• b) breaks the transaction into number of sub transactions
  

• c) coordinates the termination of the transaction
  

• d) all of the mentioned

In distributed systems, election algorithms assumes that ____________

• a) a unique priority number is associated with each active process in system
  

• b) there is no priority number associated with any process
  

• c) priority of the processes is not required
  

• d) none of the mentioned

According to the ring algorithm, links between processes are ____________

• a) bidirectional
  

• b) unidirectional
  

• c) both bidirectional and unidirectional
  

• d) none of the mentioned

What are the types of distributed operating system?

• a) Network Operating system
  

• b) Zone based Operating system
  

• c) Level based Operating system
  

• d) All of the mentioned

What are the characteristics of data migration?

• a) transfer data by entire file or immediate portion required
  

• b) transfer the computation rather than the data
  

• c) execute an entire process or parts of it at different sites
  

• d) none of the mentioned