Computer Networks

511. Network and switching subsystem is composed of the ____________

1. Mobile Services Switching Center(MSC)
2. Home Location Register(HLR)
3. Visitor Location Register(VLR)
4. All of these

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512. Network is the term used for a group of

1. protocols
2. layers
3. Both a & b
4. None of these

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513. Nibble is known as series of ____________

1. 8 bits
2. 4 bits
3. 16 bits
4. 32 bits

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514. Noise is measured in terms of the signal to noise ratio

1. S/N
2. SNR
3. S/M
4. Both a & b

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515. Noise of channel noise ____________ the quality of information and data

1. Upgrades
2. Degrades
3. Both a & b
4. None of these

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516. North American implementation uses DQDB with DS1 at a data rate of

1. 1.5Mbit/s
2. 45Mbits/s
3. 1.6Mbit/s
4. 46Mbit/s

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517. North American implementation uses DQDB with DS3 at a data rate of

1. 1.5Mbit/s
2. 45Mbits/s
3. 1.6Mbit/s
4. 46Mbit/s

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518. Novell NetWare is a ____________ network operating system that was created by Novell, Inc

1. Client type
2. Server type
3. Both a & b
4. None of these

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519. Novell NetWare uses a protocol stack having ____________

1. 3 layers
2. 4 layers
3. 5 layers
4. 6 layers

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520. NRZ has no ____________ state

1. Rest
2. Zero
3. Neutral
4. None of these

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