What is 555 timer?

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DNS uses UDP instead of TCP.if a DNS packet is lost,there is no automatic recovery.does this cause a problem and if so, how is it solved?

1 Answers  

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A channel has a bit rate of 4kbps and a propagation delay of 20msec. For what range of frame sizes does stop-and-wait give an efficiency of at least 50%

0 Answers   Chongqing University of Posts and Telecommunications,

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What is ssb modulation?

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14,25,49,169

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what is the use of FR-4(flame retardant)in PCB design why dielectric material used in inner layer in PCB design technology??

0 Answers   CoreEL,

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wht is charging gateway protocol wht is it functio

0 Answers   ZTE,

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hello, i have applied for PO Post.i m so confuse about ques.which type of question u wil ak in interview. i m engg. in electronics & comm. plz tel me

0 Answers   Wipro,

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Photodiode is a photovoltaic device or a photoconductive device or both?

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Tell me why the feeding frequency to a microprocessor is twice the operating frequency?

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Tell me in a mosfet, what does the pinch off voltage refers to?

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Explain why regeneration is not possible in semiconductor

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