11. Java Message Service is an asynchronous communication mechanism in the distributed system field. 12. Processes are global objects that represent the concurrent entities of the distributed system . 13. Sirer is best known for his contributions to operating systems and distributed systems . 14. A second group studied automatic call distributing systems . 15. Lamport timestamps and vector clocks are concepts of the logical clocks in distributed systems . 16. In distributed systems , the promise mechanism also minimizes delays caused by network latency. 17. Pepsi left Izze at their headquarters in Boulder and left their distributing system untouched. 18. A critical problem in deploying distributed systems is monitoring and debugging concurrently running processes. 19. The authors were considering distributed systems , stating: 20. Services and servers ( e . g . an distributed systems and component replication.