i having one cisco 2950 switch,but i having no rights of ythis switch,now i want to know switch macc addrerss of particular network ip,how can i resolved?

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What are the applications of demultiplexer?

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What is D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? Explain an ideal voltage source? Explain zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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i/p sec of atransformer is 230V 5a o/p spc is 12v 1a so i/p power will be 1150w o/p power will be 12w then how the power transfer theorm matching with this??

2 Answers   Bosch, Surya Software,

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What is CDMA?

5 Answers   CTS,

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Explain what is the purpose of the package around a microprocessor silicon die?

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Suppose in market 4n27 is not easily available so which opto isolator can I use at the place of this? What is 4n27

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plz tell me the syllabus for airport authority of india recruitment for the post of Jr. electronics engineer.let me know whether written test will be a aptitude test or technical??

2 Answers  

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what is the difference between electricle and electronics?

7 Answers   Syntel,

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about microprocessor and microcontroller

4 Answers  

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what is the exact difference between zener breakdown voltage and avalanche voltage??

3 Answers   TCS,

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i want to know some description about SIM architecture... what is inside the SIM?

0 Answers   TCS,

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