| 11. | The Application layer in OSI is implemented in |
| a. | NIC |
| b. | Ethernet |
| c. | End System |
| d. | None |
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Answer: (c).End System
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| 12. | Application developer has permission to decide the following on transport layer side |
| a. | Transport layer protocol |
| b. | Maximum buffer size |
| c. | Both a and b |
| d. | None of the mentioned |
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Answer: (c).Both a and b
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| 13. | Application layer offers _______ service |
| a. | End to end |
| b. | Process to process |
| c. | Both of the mentioned |
| d. | None of the mentioned |
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Answer: (a).End to end
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| 14. | E-mail is |
| a. | Loss-tolerant application |
| b. | Bandwidth-sensitive application |
| c. | Elastic application |
| d. | None of the mentioned |
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Answer: (c).Elastic application
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| 15. | Which of the following is an application layer service ? |
| a. | Network virtual terminal |
| b. | File transfer, access, and management |
| c. | Mail service |
| d. | All of the mentioned |
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Answer: (d).All of the mentioned
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| 16. | This is a time-sensitive service |
| a. | File transfer |
| b. | File download |
| c. | |
| d. | Internet telephony |
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Answer: (d).Internet telephony
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| 17. | _______ is the standard mechanism provided by TCP/IP for copying a file from one host to another. |
| a. | TELNET |
| b. | SMTP |
| c. | TFTP |
| d. | none of the above |
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Answer: (d).none of the above
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| 18. | FTP uses the services of ________. |
| a. | UDP |
| b. | IP |
| c. | TCP |
| d. | none of the above |
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Answer: (c).TCP
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| 19. | In FTP, the well-known port ____ is used for the control connection and the well-known port ________ for the data connection. |
| a. | 21; 22 |
| b. | 21; 20 |
| c. | 20; 21 |
| d. | none of the above |
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Answer: (b).21; 20
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| 20. | In FTP, _______ is the service type used by the IP protocol because this is an interactive connection between a user (human) and a server. |
| a. | maximize throughput |
| b. | minimize delay |
| c. | minimize error |
| d. | none of the above |
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Answer: (b).minimize delay
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