Download Aptitude Crack
img not found img not found

Memory and Storage

Q1:
Refer to the given figures (a) and (b). A logic analyzer is used to check the circuit in figure (a) and displays the waveforms shown in figure (b). The actual analyzer display shows all four data outputs, Q0-Q3. The analyzer's cursor is placed at position X and all four of the data output lines show a LOW level output. What is wrong, if anything, with the circuit?

A Nothing is wrong, according to the display. The outputs are in the open state and should show zero output voltage.

B The circuit is in the READ mode and the outputs, Q0-Q3, should reflect the contents of the memory at that address. The chip is defective; replace the chip.

C The circuit is in the  mode and should be writing the contents of the selected address to Q0–Q3.

D The Q0–Q3 lines can be either LOW or HIGH, since the chip is in the tristate mode in which case their level is unpredictable.

ANS:A - Nothing is wrong, according to the display. The outputs are in the open state and should show zero output voltage.

No answer description is available.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.