Access Networks - Computer Networks Questions and Answers

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1.

Which of this is not a constituent of residential telephone line?

   A.) A high-speed downstream channel
   B.) A medium-speed downstream channel
   C.) A low-speed downstream channel
   D.) None of these

Answer: Option 'C'

A low-speed downstream channel

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2.

The function of DSLAM is

   A.) Convert analog signals into digital signals
   B.) Amplify digital signals
   C.) Convert digital signals into analog signals
   D.) None of these

Answer: Option 'A'

Convert analog signals into digital signals

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3.

In DSL telco provides these services

   A.) Wired phone access
   B.) ISP
   C.) All of the mentioned
   D.) None of the mentioned

Answer: Option 'C'

All of the mentioned

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4.

The following term is not associted with DSL

   A.) DSLAM
   B.) CO
   C.) Splitter
   D.) CMTS

Answer: Option 'D'

CMTS

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5.

HFC contains

   A.) Fibre cable
   B.) Coaxial cable
   C.) Both of the mentioned
   D.) None of these

Answer: Option 'C'

Both of the mentioned

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6.

Among the optical-distribution architectures that is essentially switched ehternet is

   A.) AON
   B.) PON
   C.) NON
   D.) None of these

Answer: Option 'A'

AON

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7.

Choose the statement which is not applicable for cable internet access

   A.) It is a shared broadcast medium
   B.) It includes HFCs
   C.) Cable modem connects home PC to Ethernet port
   D.) Analog signal is converted to digital signal in DSLAM

Answer: Option 'D'

Analog signal is converted to digital signal in DSLAM

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8.

Home Access is provided by

   A.) Cable
   B.) DSL
   C.) FTTP
   D.) All of these

Answer: Option 'D'

All of these

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9.

ONT is connected to splitter using

   A.) High speed fibre cable
   B.) HFC
   C.) Optical cable
   D.) None of these

Answer: Option 'C'

Optical cable

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10.

These factors affect transmission rate in DSL

   A.) The gauge of the twisted-pair line
   B.) Degree of electrical interfernece
   C.) Shadow fading
   D.) Both a and b

Answer: Option 'D'

Both a and b

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