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Data Communication Networks And Reference Models MCQ

Data Communication Networks And Reference Models MCQ

1. A url is a ____-part addressing scheme

Answer

Correct Answer: Four

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2. One task of the ____ layer in a lan is to handle error detection using a crc.

Answer

Correct Answer: Data Link

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3. In a ring network, each workstation acts as a(n) ____ for the transmission.

Answer

Correct Answer: Repeater

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4. A protocol analyzer is also known as ____.

Answer

Correct Answer: Sniffer

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5. ________ is a method for addressing, creating, updating, or querying relational databases.

Answer

Correct Answer: SQLB

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6. Select correct type of line configuration:

Answer

Correct Answer: Multipoint

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7. Half duplex means data transferred and received but not at the same time:

Answer

Correct Answer: True

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8. Star topology does not allow direct traffic between devices:

Answer

Correct Answer: True

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9. Which network has connectivity range up to 10 meters?

Answer

Correct Answer: PAN

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10. OSI model means:

Answer

Correct Answer: Open systems interconnection

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11. Data communications system depends on four fundamental characteristics.

Answer

Correct Answer: Timeliness

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12. Select the wrong data communication system component:

Answer

Correct Answer: Transits

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13. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?

Answer

Correct Answer: Hardware and software

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14. Time required for a message to travel from one device to another:

Answer

Correct Answer: Transit time

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15. 00 represented by which pixel:

Answer

Correct Answer: Black pixel

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16. A data communications system has how many components:

Answer

Correct Answer: 5

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17. Correct method for full duplex mode of communication:

Answer

Correct Answer: Both stations can transmit and receive data at the same time

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18. What is Unicode?

Answer

Correct Answer: Represents symbol or characters used in any language

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19. We often need more throughput and less delay:

Answer

Correct Answer: True

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20. If one link fails, only that link is affected. All other links remain active. Which topology does this?

Answer

Correct Answer: Star topology

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