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
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
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
The bit rate for T-1 carrier system is 1.544 Mbps.
The bit rate for T-1 carrier system is 1.544 Mbps.
Signup and view all the answers
Telephone subscribers are connected directly to Toll CO in the network structure.
Telephone subscribers are connected directly to Toll CO in the network structure.
Signup and view all the answers
Framing is not required for telephone digital transmission.
Framing is not required for telephone digital transmission.
Signup and view all the answers
TV stations do not require guard bands.
TV stations do not require guard bands.
Signup and view all the answers
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.
Signup and view all the answers
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.
Signup and view all the answers
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.
Signup and view all the answers
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.
Signup and view all the answers
Multiplexing always involves using multiple cables for data transmission.
Multiplexing always involves using multiple cables for data transmission.
Signup and view all the answers
In Frequency-Division Multiplexing, individual signals occupy frequency slots, not time slots.
In Frequency-Division Multiplexing, individual signals occupy frequency slots, not time slots.
Signup and view all the answers
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.
Signup and view all the answers
Circuit switching involves establishing a dedicated communication channel before data transfer begins.
Circuit switching involves establishing a dedicated communication channel before data transfer begins.
Signup and view all the answers
Hierarchical networks are known for their complex routing mechanisms.
Hierarchical networks are known for their complex routing mechanisms.
Signup and view all the answers
Delay in circuit-switched networks does not include connection establishment time.
Delay in circuit-switched networks does not include connection establishment time.
Signup and view all the answers
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.
Signup and view all the answers
Transmission time is inversely proportional to data rate in circuit-switched networks.
Transmission time is inversely proportional to data rate in circuit-switched networks.
Signup and view all the answers
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.
Signup and view all the answers
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.
Signup and view all the answers
