Q.1

The serial-in, parallel-out shift register transfers data from one parallel data bus to another parallel data bus one bit at a time across a single line.

  • True
  • False
Q.2

An asynchronous counter differs from a synchronous counter in the method of clocking.

  • True
  • False
Q.3

Asynchronous inputs will cause the flip-flop to respond immediately with regard to the clock input.

  • True
  • False
Q.4

Synchronous construction reduces the delay time of a counter to the delay of __________.

  • all flip-flops and gates
  • a single flip-flop and a gate
  • all flip-flops and gates after a 3 count
  • a single gate
Q.5

A serial-in, serial-out shift register transfers data from one line of a parallel bus to another line one bit at a time.

  • True
  • False
Q.6

A multiplexed display circuit uses a technique called time division modulation.

  • True
  • False
Q.7

A 4-bit PISO shift register that receives 4 bits of parallel data will shift to the ________ by ________ position(s) for each clock pulse.

  • right, one
  • right, two
  • left, one
  • left, three
Q.8

A ripple counter is an asynchronous counter.

  • True
  • False
Q.9

An asynchronous decade counter increases its value by ten for each clock pulse.

  • True
  • False
Q.10

A parallel-in, serial-out shift register enters all data bits simultaneously and transfers them out one bit at a time.

  • True
  • False
Q.11

To operate correctly, starting a ring counter requires __________.

  • clearing one flip-flop and presetting all the others
  • clearing all the flip-flops
  • presetting one flip-flop and clearing all the others
  • presetting all the flip-flops
Q.12

Asynchronous counters are often called ________ counters.

  • toggle
  • ripple
  • binary
  • flip-flop
Q.13

Counters are common components in digital clocks.

  • True
  • False
Q.14

The modulus (mod) of a counter is the same as its maximum count (N).

  • True
  • False
Q.15

In order to use a shift register as a counter, ________.

  • the register's serial input is the counter input and the serial output is the counter output
  • the parallel inputs provide the input signal and the output signal is taken from the serial data output
  • a serial-in, serial-out register must be used
  • the serial output of the register is connected back to the serial input of the register
Q.16

A sequence of equally spaced timing pulses may be easily generated by a(n) __________.

  • ring counter
  • johnson counter
  • binary up counter
  • ripple counter
Q.17

A _________ shift register can shift stored data either left or right.

  • bidirectional
  • tri-state
  • universal
  • bidirectional universal
Q.18

In an asynchronous counter, each state is clocked by the same pulse.

  • True
  • False
Q.19

What is a shift register that will accept a parallel input and can shift data left or right called?

  • tri-state
  • end around
  • bidirectional universal
  • conversion
Q.20

Which type of device may be used to interface a parallel data format with external equipment's serial format?

  • key matrix
  • UART
  • memory chip
  • serial-in, parallel-out
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