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 (A)
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 (A)
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 (B)
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.
True or false: Amplitude Modulation (AM) changes the frequency of the signal.
True or false: Amplitude Modulation (AM) changes the frequency of the signal.
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
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.
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.
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.
Multiple users can be supported using space, time, or frequency division multiplexing.
Multiple users can be supported using space, time, or frequency division multiplexing.
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
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
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
True or false: Time Division Multiplexing requires spectrum proportional to aggregate bandwidth
True or false: Time Division Multiplexing requires spectrum proportional to aggregate bandwidth
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.
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.
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.
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.
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?
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?
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?
True or false: Amplitude Modulation (AM) changes the phase of the signal?
True or false: Amplitude Modulation (AM) changes the phase of the signal?
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?
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?
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.
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?
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.
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?
True or false: Frequency Modulation (FM) changes the frequency of the signal.
True or false: Frequency Modulation (FM) changes the frequency of the signal.
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?
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
True or false: Baseband modulation is simpler hardware compared to carrier modulation.
True or false: Ether has unlimited bandwidth?
True or false: Ether has unlimited bandwidth?
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.
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?
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.
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)?
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?
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?
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?
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?
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?
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?
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?
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?
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 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?
True or false: Baseband modulation is simpler hardware compared to carrier modulation?
True or false: Baseband modulation is simpler hardware compared to carrier modulation?
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?