Podcast
Questions and Answers
True or false: The datalink layer is responsible for framing, error coding, and switched networks.
True or false: The datalink layer is responsible for framing, error coding, and switched networks.
True
True or false: The physical layer is responsible for information transfer using electrical signals, optical signals, and EM waves.
True or false: The physical layer is responsible for information transfer using electrical signals, optical signals, and EM waves.
True
True or false: Information carriers can only be electrical signals and optical signals.
True or false: Information carriers can only be electrical signals and optical signals.
False
True or false: Modulation is the process of changing a signal to convey information.
True or false: Modulation is the process of changing a signal to convey information.
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True or false: Amplitude Modulation (AM) changes the frequency of the signal.
True or false: Amplitude Modulation (AM) changes the frequency of the signal.
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True or false: Baseband modulation is simpler hardware compared to carrier modulation.
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
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True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is zero.
True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is zero.
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The bandwidth and distance of networks are limited by the physical properties of the media.
The bandwidth and distance of networks are limited by the physical properties of the media.
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Nyquist's formula gives an accurate measure of the idealized throughput of a network.
Nyquist's formula gives an accurate measure of the idealized throughput of a network.
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Multiple users can be supported using space, time, or frequency division multiplexing.
Multiple users can be supported using space, time, or frequency division multiplexing.
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True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H
True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H
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True or false: Every transmission medium supports transmission in a certain fixed frequency range
True or false: Every transmission medium supports transmission in a certain fixed frequency range
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True or false: Shannon's theorem states that the maximum capacity of a noisy channel is given by C = B x log2(1 + S/N), where C is the maximum capacity (bps), B is the channel bandwidth (Hz), and S/N is the signal to noise ratio of the channel
True or false: Shannon's theorem states that the maximum capacity of a noisy channel is given by C = B x log2(1 + S/N), where C is the maximum capacity (bps), B is the channel bandwidth (Hz), and S/N is the signal to noise ratio of the channel
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True or false: Time Division Multiplexing requires spectrum proportional to aggregate bandwidth
True or false: Time Division Multiplexing requires spectrum proportional to aggregate bandwidth
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True or false: Frequency Division Multiplexing (FDM) allows different users to use different parts of the frequency spectrum.
True or false: Frequency Division Multiplexing (FDM) allows different users to use different parts of the frequency spectrum.
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True or false: Time Division Multiplexing (TDM) allows different users to send at different times.
True or false: Time Division Multiplexing (TDM) allows different users to send at different times.
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True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 100 Mbit/s up to 100 m.
True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 100 Mbit/s up to 100 m.
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True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m.
True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m.
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True or false: Information transfer is only a physical process, involving electrical signals, optical signals, and EM waves?
True or false: Information transfer is only a physical process, involving electrical signals, optical signals, and EM waves?
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True or false: Information carriers can also be sound waves, quantum states, proteins, ink & paper, etc?
True or false: Information carriers can also be sound waves, quantum states, proteins, ink & paper, etc?
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True or false: Time Division Multiplexing (TDM) requires spectrum proportional to aggregate bandwidth?
True or false: Time Division Multiplexing (TDM) requires spectrum proportional to aggregate bandwidth?
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True or false: Amplitude Modulation (AM) changes the phase of the signal?
True or false: Amplitude Modulation (AM) changes the phase of the signal?
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True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m?
True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m?
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True or false: Baseband modulation is more complex hardware compared to carrier modulation?
True or false: Baseband modulation is more complex hardware compared to carrier modulation?
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True or false: The physical layer places constraints on what the network infrastructure can deliver.
True or false: The physical layer places constraints on what the network infrastructure can deliver.
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True or false: MAC rules are used to increase interference in a network?
True or false: MAC rules are used to increase interference in a network?
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True or false: Modulation is the process of changing a signal to convey information.
True or false: Modulation is the process of changing a signal to convey information.
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True or false: Aggressive encoding techniques make a signal more sensitive to noise?
True or false: Aggressive encoding techniques make a signal more sensitive to noise?
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True or false: Frequency Modulation (FM) changes the frequency of the signal.
True or false: Frequency Modulation (FM) changes the frequency of the signal.
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True or false: Multipath fading and security are the only other effects to consider in a network?
True or false: Multipath fading and security are the only other effects to consider in a network?
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True or false: Baseband modulation is simpler hardware compared to carrier modulation.
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
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True or false: Ether has unlimited bandwidth?
True or false: Ether has unlimited bandwidth?
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True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H.
True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H.
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True or false: Bandwidth and distance of networks are not limited by physical properties of media?
True or false: Bandwidth and distance of networks are not limited by physical properties of media?
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True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is nonzero.
True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is nonzero.
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True or false: Shannon's theorem states that C = B x log2(1 + S/N)?
True or false: Shannon's theorem states that C = B x log2(1 + S/N)?
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True or false: Fiber optic cables use lasers to transmit signals at different wavelengths?
True or false: Fiber optic cables use lasers to transmit signals at different wavelengths?
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True or false: Single mode fiber has a larger core size compared to multimode fiber?
True or false: Single mode fiber has a larger core size compared to multimode fiber?
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True or false: Wavelength Division Multiplexing allows multiple signals to be sent simultaneously through different optical carriers?
True or false: Wavelength Division Multiplexing allows multiple signals to be sent simultaneously through different optical carriers?
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True or false: Wireless technologies have high attenuation, limiting the distance over which they can transmit signals?
True or false: Wireless technologies have high attenuation, limiting the distance over which they can transmit signals?
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True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 1000 Mbit/s up to 100 m?
True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 1000 Mbit/s up to 100 m?
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True or false: The physical layer is responsible for information transfer using only electrical signals?
True or false: The physical layer is responsible for information transfer using only electrical signals?
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True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is zero?
True or false: Bandwidth is the width of the frequency range in which the Fourier transform of the signal is zero?
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True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m?
True or false: Single mode fiber has a typical limit of 1 Gbps at 100 m?
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True or false: The datalink layer is responsible for framing, error coding, and switched networks?
True or false: The datalink layer is responsible for framing, error coding, and switched networks?
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True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H?
True or false: The Nyquist Limit states that a noiseless channel of width H can at most transmit a binary signal at a rate 2 x H?
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True or false: Baseband modulation is simpler hardware compared to carrier modulation?
True or false: Baseband modulation is simpler hardware compared to carrier modulation?
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True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 100 Mbit/s up to 100 m?
True or false: Unshielded twisted pair (UTP) copper wire can transmit data at a speed of 100 Mbit/s up to 100 m?
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