| 1. | The OSI model has ________layers. |
| a. | 4 |
| b. | 5 |
| c. | 6 |
| d. | 7 |
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Answer: (d).7
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| 2. | TCP/IP model does not have ______ layer but OSI model have this layer. |
| a. | session layer |
| b. | presentation layer |
| c. | application layer |
| d. | both (a) and (b) |
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Answer: (d).both (a) and (b)
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| 3. | OSI stands for |
| a. | open system interconnection |
| b. | operating system interface |
| c. | optical service implementation |
| d. | none of the mentioned |
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Answer: (a).open system interconnection
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| 4. | Which layer links the network support layers and user support layers |
| a. | session layer |
| b. | data link layer |
| c. | transport layer |
| d. | network layer |
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Answer: (c).transport layer
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| 5. | TCP/IP model was developed _____ the OSI model. |
| a. | prior to |
| b. | after |
| c. | simultaneous to |
| d. | none of the mentioned |
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Answer: (a).prior to
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| 6. | Which layer is responsible for process to process delivery? |
| a. | network layer |
| b. | transport layer |
| c. | session layer |
| d. | data link layer |
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Answer: (b). transport layer
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| 7. | Which layer provides the services to user? |
| a. | application layer |
| b. | session layer |
| c. | presentation layer |
| d. | none of the mentioned |
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Answer: (a).application layer
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| 8. | In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are |
| a. | Added |
| b. | Removed |
| c. | Rearranged |
| d. | Modified |
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Answer: (a).Added
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| 9. | The number of layers in Internet protocol stack |
| a. | 5 |
| b. | 7 |
| c. | 6 |
| d. | None of the mentioned |
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Answer: (a).5
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| 10. | The number of layers in ISO OSI reference model |
| a. | 5 |
| b. | 7 |
| c. | 6 |
| d. | None of the mentioned |
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Answer: (b).7
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