CDS3001-3

1. 1. What is the characteristics of atomicity?

• Use communication links.

• One processor as coordinator which handles all requests.

• All operations associated are executed to completion or none are performed.

• When responses are received from all processes, then process can enter its CS.

2. 2. Most of the web applications are usign ________ architecture.

• Master-slave

• Two-tier

• Three-tier

• Peer-to-Peer

3. 3. The request and release of resources are ___________

• command line statements

• interrupts

• system calls

• special programs

4. 4. Which of the following is not a valid deadlock prevention scheme?

• Request and all required resources be allocated before execution.

• Never request a resource after releasing any resource.

• Number the resources uniquely and never request a lower numbered resource than the last one requested.

• Release all resources before requesting a new resource.

5. 5. Which of the following is true with respect to deadlock avoidance?

• The Bakery algorithm is used to deal with deadlock avoidane.

• When a process is created in a deadlock, it must declare its minimum claim.

• The avoidance strategy depends on additional information about short-term resource needs.

• With the deadlock avoidance approach, the system is always kept in a safe state.

6. 6. Which one of the following is the deadlock avoidance algorithm?

• Round-robin

• Banker’s

• Elevator

• Karn’s

7. 7. Which of the following condition is required for a deadlock to be possible?

• Mutual Exclusion

• A process may hold allocated resources while awaiting assignment of other resources.

• No resources can be forciby removed from a process holding it.

• All of the above

8. 8. The cirular wait condition can be prevented by _________.

• defining a linear ordering of resource types

• using thread

• using pipes

• all of the mentioned

9. 9. In RMI, the objects are passed by ______.

• Value

• Reference

• Value and Reference

• Object

10. 10. _______ is an object acting as a gateway for the client side.

• Skeleton

• Stub

• Remote

• Server