Computer Networks

651. The Asynchronous Transfer Mode(ATM) is an ____________ for cell relay

1. ITU-TSS(International Telecommunication Union-Telecommunication Standardization Sector)
2. TIU-ESS
3. PTU-DSS
4. None of these

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652. The ATM cell has a fixed length of

1. 51bytes
2. 62bytes
3. 53bytes
4. 63bytes

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653. The ATM networks are

1. Connection-less service
2. Connection oriented service
3. Both a & b
4. None of these

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654. The authentication process involves transmission of password information between

1. RADIUS server
2. RAS(Remote Access Server)
3. Both a & b
4. None of these

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655. The Authentication transaction used between a Remote access user and RAS can be divided into two categories are

1. PAP(Password Authentication Protocol)
2. CHAP(Challenge Handshake Authentication Protocol)
3. Both a & b
4. None of these

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656. The backbones of MAN has working data rate of ____________

1. 139Mbits/s
2. 140Mbits/s
3. 155Mbits/s
4. 134Mbits/s

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657. The bandwidth is a ____________ property of a transmission medium

1. Physical
2. Logical
3. Both a & b
4. None of these

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658. The bandwidth is typically ____________ over a length of one kilometer of fibre expressed as ‘MHz-Km’

1. 10 to 20
2. 20 to 30
3. 30 to 40
4. 40 to 50

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659. The bandwidth of CATV video channel is approximately

1. 2MHz
2. 4MHz
3. 6MHz
4. 8MHz

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660. The bandwidth of voice grade channel is approximately

1. 4000Hz
2. 5000Hz
3. 6000Hz
4. 3000Hz

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