By Team EasyExamNotes

1. What is the lumped parameter equivalent of a transmission line? a) RLC circuitb) RC circuitc) RL circuitd) LC circuit Answer: a) RLC circuit Explanation: … Read more

1. Which type of filter is designed to allow low frequencies to pass while attenuating high frequencies? a) Low pass filterb) High pass filterc) Band … Read more

1. What is a characteristic parameter used to describe the relationship between voltage and current in a two-port network? a) Resistanceb) Inductancec) Admittanced) Impedance Answer: … Read more

1. What concept does information theory primarily study?a) Communication protocolsb) Data compressionc) Transmission of data over networksd) Quantification and transmission of information Answer: d) Quantification … Read more

1. Which technique is used to maximize signal-to-noise ratio (SNR) in communication systems?a) Matched filterb) Gram Schmidt orthogonalizationc) Correlator detectord) Signal space concept Answer: a) … Read more

1. Which modulation technique utilizes multiple amplitude levels to encode data? a) ASKb) BPSKc) QPSKd) DPSK Answer: c) QPSK Explanation: QPSK (Quadrature Phase Shift Keying) … Read more

1. Which technique is used to convert analog signals into digital signals by sampling the amplitude of the signal at regular intervals? A) Pulse Code … Read more

1. Which theorem states that a band-limited signal can be perfectly reconstructed from its samples if the sampling frequency is greater than twice the highest … Read more

1. What is the primary function of a microcontroller in an embedded system?a) Manage power supplyb) Process and control datac) Transmit wireless signalsd) Display graphical … Read more

1. Which peripheral device is responsible for generating precise time intervals in a computer system? a) 8253b) 8254c) 8259Ad) 8257 Answer: b) 8254 Explanation: The … Read more