| 11. | A list of protocols used by a system, one protocol per layer, is called |
| a. | protocol architecture |
| b. | protocol stack |
| c. | protocol suit |
| d. | none of the mentioned |
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Answer: (b).protocol stack
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| 12. | Network congestion occurs |
| a. | in case of traffic overloading |
| b. | when a system terminates |
| c. | when connection between two nodes terminates |
| d. | none of the mentioned |
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Answer: (a).in case of traffic overloading
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| 13. | Which one of the following extends a private network across public networks? |
| a. | local area network |
| b. | virtual private network |
| c. | enterprise private network |
| d. | storage area network |
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Answer: (b).virtual private network
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| 14. | The IETF standards documents are called |
| a. | RFC |
| b. | RCF |
| c. | ID |
| d. | IEEE |
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Answer: (a). RFC
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| 15. | The structure or format of data is called |
| a. | Syntax |
| b. | Semantics |
| c. | Struct |
| d. | None of the mentioned |
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Answer: (a).Syntax
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| 16. | Communication between a computer and a keyboard involves ______________ transmission |
| a. | Automatic |
| b. | Half-duplex |
| c. | Half-duplex |
| d. | Simplex |
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Answer: (d).Simplex
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| 17. | The first Network was |
| a. | CNNET |
| b. | NSFNET |
| c. | ASAPNET |
| d. | ARPANET |
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Answer: (d).ARPANET
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| 18. | The _______ is the physical path over which a message travels |
| a. | path |
| b. | Medium |
| c. | Protocol |
| d. | Route |
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Answer: (b).Medium
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| 19. | Which organization has authority over interstate and international commerce in the communications field? |
| a. | ITU-T |
| b. | IEEE |
| c. | FCC |
| d. | ISOC |
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Answer: (c).FCC
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| 20. | Which of this is not a network edge device? |
| a. | PC |
| b. | Smartphones |
| c. | Servers |
| d. | Switch |
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Answer: (d).Switch
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