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CSND0113 ND3A CP03-04 Assessment

Quiz by Bryan N. Manalaotao

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15 questions
Show answers
  • Q1
    Modulator encodes data while ________ decodes data.
    decipher
    deoscillating
    decoding
    demodulator
    30s
  • Q2
    __________ can be detected over longer distances than RS-232.
    Signals
    Recommended Signal
    Amplitude Modulation
    Carrier
    20s
  • Q3
    ___________ encodes data bits as modulated carrier.
    Modulator
    Amplitude Modulation
    Frequency Modulation
    Demodulator
    30s
  • Q4
    _________ decodes bits from carrier.
    Modulator
    Demodulator
    Amplitude Modulation
    Frequency Modulation
    20s
  • Q5
    Which of the following accurately describes the primary purpose of Frequency Division Multiplexing (FDM)?
    FDM encrypts data for secure communication.
    FDM combines signals into a single frequency for transmission.
    FDM separates signals by encoding them in different time slots.
    FDM divides the available bandwidth into non-overlapping frequency sub-bands.
    30s
  • Q6
    Which statement accurately describes Time Division Multiplexing (TDM)?
    TDM separates signals by encoding them in different frequency sub-bands.
    TDM divides a single communication time slot into smaller time slots.
    TDM uses multiple carriers for simultaneous data transmission.
    TDM combines multiple signals into a single time slot for transmission.
    30s
  • Q7
    What distinguishes Statistical Time Division Multiplexing (STDM) from standard Time Division Multiplexing (TDM)?
    STDM uses fixed time slots for all channels.
    None of the above
    STDM exclusively transmits voice data.
    STDM employs variable time slot lengths and channels compete for free slots.
    30s
  • Q8
    Which statement accurately describes Wavelength Division Multiplexing (WDM) in fiber optic communication?
    WDM separates signals based on their physical location.
    WDM combines signals on radio frequencies (RF) for transmission.
    WDM uses fixed time slots for data transmission.
    WDM operates in the infrared (IR) portion of the electromagnetic spectrum.
    30s
  • Q9
    How do private corporations typically extend computer networks across public lands in compliance with laws that prohibit stringing wires through public property?
    They install their own dedicated wires on public property.
    They rely on satellite links for network connectivity.
    They lease wires from public utilities like phone companies.
    They use wireless communication for network extension.
    30s
  • Q10
    What is the primary purpose of dividing data into small packets in packet-switched networks?
    To detect transmission errors and facilitate error correction.
    To increase the speed of data transmission.
    To provide dedicated connections for each computer on the network.
    To reduce the amount of data transmitted.
    30s
  • Q11
    How does Packet Switching relate to Time Division Multiplexing (TDM) in data transmission?
    Packet Switching is a separate, unrelated method to TDM in data transmission.
    TDM relies on large data blocks, while Packet Switching uses small packets.
    Packet Switching is a form of TDM that divides data into small time slots.
    Packet Switching and TDM have no connection in data transmission.
    50s
  • Q12
    What does the term "packet" generally refer to in the context of data transmission?
    A specific data format used by all hardware technologies.
    A specialized encryption method.
    A small block of data.
    The physical medium used for data transmission.
    30s
  • Q13
    In the context of hardware technologies, what is a "frame"?
    A specific data format used by all hardware technologies.
    A generic term for any data block in data transmission.
    A type of computer monitor.
    A packet of specific format on a specific hardware technology.
    30s
  • Q14
    What is the purpose of "data stuffing" in data communication?
    To encode reserved bytes within the data.
    To encrypt the data for security.
    To reduce the size of data packets.
    To increase the speed of data transmission.
    30s
  • Q15
    What term is commonly used to describe problems in data transmission caused by factors like lightning, power surges, and electromagnetic interference?
    Data congestion
    Data anomalies
    Network collisions
    Transmission errors
    30s

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