| Q 1: | A subschema expresses
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| (1) | the logical view |
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| (2) | the physical view |
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| (3) | the external view |
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| (4) | All |
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| Correct Answer: the external view |
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| Q 2: | Index sequential file is made of all of these expect
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| (1) | Primary data storage area |
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| (2) | Overflow area |
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| (3) | Hierarchy of indices |
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| (4) | Address of prime data track |
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| Correct Answer: Address of prime data track |
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| Q 3: | The following device is used to join different kinds of networks at data link layer
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| (1) | Repeater |
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| (2) | Gateway |
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| (3) | Router |
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| (4) | Bridge |
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| Correct Answer: Bridge |
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| Q 4: | In Ethernet when Manchester Encoding is used bit rate is:
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| (1) | Half the baud rate |
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| (2) | Twice the baud rate |
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| (3) | Same as the baud rate |
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| (4) | None |
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| Correct Answer: Half the baud rate |
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| Q 5: | How may bits are in Ethernet address?
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| (1) | 32 |
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| (2) | 16 |
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| (3) | 64 |
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| (4) | 48 |
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| Correct Answer: 48 |
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| Q 6: | The first network was
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| (1) | ASAPNET |
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| (2) | ARPANET |
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| (3) | CNNET |
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| (4) | NSFNET |
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| Correct Answer: ARPANET |
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| Q 7: | The X.25 standard specifies a
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| (1) | Technique for dial access |
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| (2) | Data bit rate |
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| (3) | Technique for start-stop data |
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| (4) | DTE/DCE interface |
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| Correct Answer: DTE/DCE interface |
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| Q 8: | Which of the following is not a service primitive
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| (1) | Send |
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| (2) | Listen |
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| (3) | Connect |
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| (4) | Sound |
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| Correct Answer: Sound |
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| Q 9: | What is flow control
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| (1) | To find the best route to a destination |
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| (2) | To be able to send a beacon message when congestion occurs. |
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| (3) | To determine which transmits packets on the wire on a given instance. |
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| (4) | To keep the transmitting device from transmitting no faster than the receiving device can receive. |
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| Correct Answer: To keep the transmitting device from transmitting no faster than the receiving device can receive. |
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| Q 10: | The minimum frame length for 10-Mbps Ethernet is .................. bytes
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| (1) | 32 |
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| (2) | 80 |
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| (3) | 128 |
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| (4) | none |
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| Correct Answer: none |
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