A numeric display - driven by a 744X driver - is used to display ...

[dmcintosh]

A numeric display - driven by a 744X driver - is used to display the output from a BCD counter. If this counter only displays the numbers 0, 2, 4, 6, and 8, then troubleshooting should be narrowed down to:
 
  A) the MSB line on the display input circuit.
  B) the b, c, and d segments on the numeric display.
  C) the LSB line on the driver input circuit.
  D) the LSB line on the display input circuit.
  E) the MSB line on the driver input circuit.

Question 2

As compared to regular registers, bidirectional registers generally have:
 
  A) fewer bus connections and common I/O lines.
  B) a greater number of bus connections and separate I/O lines.
  C) a greater number of bus connections and common I/O lines.
  D) fewer bus corrections and separate I/O lines.

[Pariscourtney]

Answer to Question 1

C

Answer to Question 2

A

[dmcintosh]

Excellent

[frankwu0507]

Thanks for the timely response, appreciate it