Electronics And Communication Engineering
Technical Interview Questions
- What is DMA controller?
- What is DMA channels?
- What happens during DMA transfer?
- What is half duplex transmission?
- What is the difference between the bandwidth of half duplex and simplex transmission?
- What are the processes required to perform interfacing successfully?
- What is single input output interface? How it is different from single ended interface?
- How does data transfer takes place between memory and input output ports?
- What is parallel data transfer process?
- Differentiate between PPI and input output devices.
- What is parallel to serial conversion?
- Explain the working of stepping motors.
- What are the data pins of microprocessors? What is their use?
- What is working principle of Profibus and how it transfer data?
- Explain zener breakdown and avalanche breakdown?
- What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response?
- What are advantages of dc supply over ac supply?
- What is the voltage level of noise signal?
- What happens when a magnetic material is heated strongly?
- What is the effect of polarization of dielectric under heat?
- Which number system is used in analyzing and programming of microprocessors?
- What happens when an inverter is placed between both inputs of S-K flip flop?
- What is the chief characteristic of master-slave flip flop?
- What logic function is obtained by adding an inverter to the output of an AND gate?
- Which register which contains the instruction that is to be executed?
- Which is used as storage location in the ALU and the control section of a computer?
- What is simulator programme?
- In C programming language, how many parameters can be passed to a function ?
- Which filter has the highest Q factor?
- What is multiplexing? Explain its primary advantage.
- What is SSB modulation?
- How can we remove unwanted sideband from SSB modulation?
- How many channels are there in 2MB pulse code modulation?
- What is cut off frequency?
- Differentiate between pass band and stop band.
- Explain Shanon-hartley law.
- Why interlacing is used in television?
- Which type of modulation is used in TV transmission?
- What is attenuation?
- Differentiate between transducer and transponder.
- What is op-amp?
- Differentiate between conductor and inductor.
- What is meant by pre-emphasis and de-emphasis?
- Which semiconductor device is used as a voltage regulator and why?
- What are monitoring methods for Electronics activities?
- What is an interrupt?
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