Computer Networks

471. Knowledge are taken as ____________ level of abstraction

1. Highest
2. Middle
3. Lowest
4. None of these

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472. LAN is a network that is restricted to a relatively

1. Small area
2. Large area
3. Both a & b
4. None of these

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473. LANs function over coaxial cable to the ____________ specifications

1. 10BASE5
2. 10BASE2
3. 10BASET
4. All of these

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474. Layering the communications process means breaking down the communication process into ____________ and ____________ to handle interdependent categories

1. Smaller
2. Easier
3. Both a & b
4. None of these

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475. LED means

1. Light Emitting Device
2. Light Emitting Diode
3. Light Exchange Device
4. Light Exchange Diode

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476. Lesser bandwidth is required to move these signal units with ____________ bits for an efficient system

1. Less
2. Large
3. Equal
4. None of these

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477. LLC header contains ____________ additional eight-bit address fields known as service access points or SAPs to request SNAP service

1. 1
2. 2
3. 3
4. 4

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478. Logical channels are identified by a number referred by

1. DLCI(Data Link Connection Identifier)
2. VLCI(Very Large Connection Identifier)
3. HDLC(High Level Data Link Control )
4. QLLC

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479. Logically, every station is considered as ____________ stations

1. 1
2. 2
3. 3
4. 4

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480. MAC(Medium Access Control)sub layer is between the

1. Physical layer
2. Data Link layer
3. Both a & b
4. None of these

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