Podcast
Questions and Answers
Guard bands are required for AM or FM radio stations.
Guard bands are required for AM or FM radio stations.
True (A)
Each signal in Time-Division Multiplexing transmits 2 units every 3T seconds.
Each signal in Time-Division Multiplexing transmits 2 units every 3T seconds.
False (B)
A T-1 carrier carries Digital Signal 2 (DS-2) that combines 24 voice channels into a digital stream.
A T-1 carrier carries Digital Signal 2 (DS-2) that combines 24 voice channels into a digital stream.
False (B)
The bit rate for T-1 carrier system is 1.544 Mbps.
The bit rate for T-1 carrier system is 1.544 Mbps.
Telephone subscribers are connected directly to Toll CO in the network structure.
Telephone subscribers are connected directly to Toll CO in the network structure.
Framing is not required for telephone digital transmission.
Framing is not required for telephone digital transmission.
TV stations do not require guard bands.
TV stations do not require guard bands.
Twisted Pair Cables can achieve significant savings by combining many signals into one.
Twisted Pair Cables can achieve significant savings by combining many signals into one.
Reliable communications are possible if the transmission rate R is less than the channel capacity C.
Reliable communications are possible if the transmission rate R is less than the channel capacity C.
Frequency-Division Multiplexing involves dividing channels into time slots instead of frequency slots.
Frequency-Division Multiplexing involves dividing channels into time slots instead of frequency slots.
The formula for Shannon Channel Capacity C is C = Bc log2 (1 + SNR) bps.
The formula for Shannon Channel Capacity C is C = Bc log2 (1 + SNR) bps.
Multiplexing always involves using multiple cables for data transmission.
Multiplexing always involves using multiple cables for data transmission.
In Frequency-Division Multiplexing, individual signals occupy frequency slots, not time slots.
In Frequency-Division Multiplexing, individual signals occupy frequency slots, not time slots.
Bandwidth Bc and Signal-to-Noise Ratio (SNR) are the factors that determine the Shannon Channel Capacity C.
Bandwidth Bc and Signal-to-Noise Ratio (SNR) are the factors that determine the Shannon Channel Capacity C.
Circuit switching involves establishing a dedicated communication channel before data transfer begins.
Circuit switching involves establishing a dedicated communication channel before data transfer begins.
Hierarchical networks are known for their complex routing mechanisms.
Hierarchical networks are known for their complex routing mechanisms.
Delay in circuit-switched networks does not include connection establishment time.
Delay in circuit-switched networks does not include connection establishment time.
The formula for connection establishment time in circuit-switched networks is 2τ + 2 Tsg.
The formula for connection establishment time in circuit-switched networks is 2τ + 2 Tsg.
Transmission time is inversely proportional to data rate in circuit-switched networks.
Transmission time is inversely proportional to data rate in circuit-switched networks.
Connection tear-down time in circuit-switched networks is equal to the propagation time τ.
Connection tear-down time in circuit-switched networks is equal to the propagation time τ.
The signaling network in circuit-switched networks does not involve intelligence inside the network.
The signaling network in circuit-switched networks does not involve intelligence inside the network.
