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Circuit Switching Network in Telephone Architecture
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Circuit Switching Network in Telephone Architecture

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Questions and Answers

Guard bands are required for AM or FM radio stations.

True

Each signal in Time-Division Multiplexing transmits 2 units every 3T seconds.

False

A T-1 carrier carries Digital Signal 2 (DS-2) that combines 24 voice channels into a digital stream.

False

The bit rate for T-1 carrier system is 1.544 Mbps.

<p>True</p> Signup and view all the answers

Telephone subscribers are connected directly to Toll CO in the network structure.

<p>False</p> Signup and view all the answers

Framing is not required for telephone digital transmission.

<p>False</p> Signup and view all the answers

TV stations do not require guard bands.

<p>False</p> Signup and view all the answers

Twisted Pair Cables can achieve significant savings by combining many signals into one.

<p>False</p> Signup and view all the answers

Reliable communications are possible if the transmission rate R is less than the channel capacity C.

<p>True</p> Signup and view all the answers

Frequency-Division Multiplexing involves dividing channels into time slots instead of frequency slots.

<p>False</p> Signup and view all the answers

The formula for Shannon Channel Capacity C is C = Bc log2 (1 + SNR) bps.

<p>True</p> Signup and view all the answers

Multiplexing always involves using multiple cables for data transmission.

<p>False</p> Signup and view all the answers

In Frequency-Division Multiplexing, individual signals occupy frequency slots, not time slots.

<p>True</p> Signup and view all the answers

Bandwidth Bc and Signal-to-Noise Ratio (SNR) are the factors that determine the Shannon Channel Capacity C.

<p>True</p> Signup and view all the answers

Circuit switching involves establishing a dedicated communication channel before data transfer begins.

<p>True</p> Signup and view all the answers

Hierarchical networks are known for their complex routing mechanisms.

<p>False</p> Signup and view all the answers

Delay in circuit-switched networks does not include connection establishment time.

<p>False</p> Signup and view all the answers

The formula for connection establishment time in circuit-switched networks is 2Ï„ + 2 Tsg.

<p>True</p> Signup and view all the answers

Transmission time is inversely proportional to data rate in circuit-switched networks.

<p>False</p> Signup and view all the answers

Connection tear-down time in circuit-switched networks is equal to the propagation time Ï„.

<p>False</p> Signup and view all the answers

The signaling network in circuit-switched networks does not involve intelligence inside the network.

<p>False</p> Signup and view all the answers

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