| 1. |
A distributed system is defined as a collection of autonomous computers linked by a network with software designed to produce an integrated computing facility. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 2. |
A “glue” between client and server parts of application |
| A. | middleware |
| B. | firmware |
| C. | package |
| D. | system software |
| Answer» A. middleware | |
| 3. |
The hardware of DS has two types |
| A. | multiprocessor system,multicomputer system |
| B. | multiprocessor system,unicomputer system |
| C. | uniprocessor system,multicomputer system |
| D. | uniprocessor system,unicomputer system |
| Answer» A. multiprocessor system,multicomputer system | |
| 4. |
Process Fail - Stop in process omission faults |
| A. | can be detected in synchronous system. |
| B. | can be detected in asynchronous system. |
| C. | can be detected in synchronous and asynchronous system. |
| D. | can be detected in standalone system. |
| Answer» A. can be detected in synchronous system. | |
| 5. |
Distributed pervasive system is also known as |
| A. | ubiquitous computing |
| B. | user interface design |
| C. | graphical user interface |
| D. | peer to peer system |
| Answer» A. ubiquitous computing | |
| 6. |
Type of cluster computing is |
| A. | load sharing cluster |
| B. | load holding cluster |
| C. | load replication cluster |
| D. | load balancing cluster |
| Answer» D. load balancing cluster | |
| 7. |
Type of grid computing is |
| A. | collaborative grid |
| B. | system grid |
| C. | process grid |
| D. | channel grid |
| Answer» A. collaborative grid | |
| 8. |
Scaling transparency hides |
| A. | system expansion |
| B. | system collaboration |
| C. | system failure |
| D. | system security |
| Answer» A. system expansion | |
| 9. |
Internet provides for remote login. |
| A. | telnet |
| B. | http |
| C. | ftp |
| D. | rpc |
| Answer» A. telnet | |
| 10. |
The header usually consists of the following elements in IPC I. Sequence number II. Structural information III. Address IV. File mode(Read/ Write) |
| A. | i,iii, iv |
| B. | i,ii, iii |
| C. | i, ii, iv |
| D. | i,iv |
| Answer» B. i,ii, iii | |
| 11. |
In RMI, the objects are passed by . |
| A. | value |
| B. | reference |
| C. | value and reference |
| D. | object |
| Answer» A. value | |
| 12. |
What are the exceptions which have to be handled in a RMI client program? |
| A. | malformedurlexception |
| B. | notfoundexception |
| C. | arithmeticexception |
| D. | class•not•found•excepti on |
| Answer» A. malformedurlexception | |
| 13. |
Transient communication done by layer |
| A. | network |
| B. | transport |
| C. | physical |
| D. | session |
| Answer» B. transport | |
| 14. |
The local operating system on the server machine passes the incoming packets to the |
| A. | server stub |
| B. | client stub |
| C. | client operating system |
| D. | binding agent |
| Answer» A. server stub | |
| 15. |
Machine that places the request to access the data is generally called as . |
| A. | server machine |
| B. | client machine |
| C. | request machine |
| D. | database server |
| Answer» B. client machine | |
| 16. |
provides programmers a familiar programming model by extending the local procedure call to a distributed environment |
| A. | distributed environment |
| B. | permanent procedure call |
| C. | process and file |
| D. | remote procedure call |
| Answer» D. remote procedure call | |
| 17. |
An architecture where clients first communicate the server for data then format and display it to the users, is known as |
| A. | client/server architecture |
| B. | three-tier architecture |
| C. | two-tier architecture |
| D. | peer-to-peer architecture |
| Answer» A. client/server architecture | |
| 18. |
is an object acting as a gateway for the client side. |
| A. | skeleton |
| B. | stub |
| C. | remote |
| D. | server |
| Answer» B. stub | |
| 19. |
Message passing provides a mechanism to allow processes to communicate and to synchronize their actions |
| A. | by sharing the same address space |
| B. | without sharing the same address space |
| C. | by sharing the same process number and process identifier |
| D. | by sharing port number |
| Answer» A. by sharing the same address space | |
| 20. |
Which of the following allocates/deallocates buffers |
| A. | rrl |
| B. | stub/skeleton layer |
| C. | transport layer |
| D. | networking layer |
| Answer» A. rrl | |
| 21. |
OSI stands for |
| A. | open system interconnection |
| B. | operating system interface |
| C. | optical service implementation |
| D. | open service internet |
| Answer» A. open system interconnection | |
| 22. |
Which address is used to identify a process on a host by the transport layer? |
| A. | physical address |
| B. | logical address |
| C. | port address |
| D. | specific address |
| Answer» C. port address | |
| 23. |
In all reliable multicast group communication |
| A. | n\ response expected from the receiver |
| B. | response from any of the receiver required |
| C. | response from \m\(1<m<n) of the \n\ receiver required |
| D. | response needed from all the receivers |
| Answer» D. response needed from all the receivers | |
| 24. |
If processes p and q both receive messages m and m', then p receives m before m' if and only if q receives m before m'.The order delivery is called |
| A. | absolute ordering |
| B. | consistent ordering |
| C. | causal ordering |
| D. | fifo ordering |
| Answer» B. consistent ordering | |
| 25. |
What is close group in group communication? |
| A. | only members can send messages to the group as a whole |
| B. | processes that are not members (clients) can send message to the group. |
| C. | the idea of groups is to support replicated servers |
| D. | processes that are not members (clients) but close to the group can send message to the group. |
| Answer» A. only members can send messages to the group as a whole | |
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