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ATT Test #10 – Questions & Accurate Answers
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ATT Test #10 – Questions & Accurate Answers
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ATT Test #10 – Questions & Accurate AnswersWhat is data? Right Ans - Info stored as binary inputs/outputs (numbers,
letters, commands)
What is a bit? Right Ans - describes the size of data, each individual number
is a bit
What is a byte? Right Ans - used to describe large binary numbers, one
byte=8 bits
What is serial data transfer? Right Ans - uses one wire for input and output,
data is transferred one bit at a time
What is parallel data transfer? Right Ans - uses separate wire for each bit,
allows all bits to transfer in one clock pulse
What is the benefit of parallel over serial data transfer? Right Ans - takes
less time to transfer large data
What is the purpose of a register? Right Ans - stores AND transfers data
from one circuit to another
What type of flip flops do registers use? Right Ans - JK or D flip flops
What are two types of registers? Right Ans - Storage and shift
What is the purpose of a storage register? Right Ans - Temporarily store
data until its needed or transferred out
What is the purpose of a shift register? Right Ans - transfer data from one
circuit to another, uses both serial and parallel transfer
What is the purpose of a 4 bit storage register? Right Ans - designed to
temporarily store 4 bits of binary data
How many flip flops are used in 4 bit storage register? What kind of flip flops?
Right Ans - 4 D flip flops
, What is the purpose of a 4 bit shift register? Right Ans - designed to
transfer 4 bits of binary data from one circuit to another
What type of transfer is used when mode control is HIGH in 4 bit shift
register? Right Ans - Parallel
What type of transfer is used when mode control is LOW in 4 bit shift register?
Right Ans - Serial
How is shift right set up in 4 bit shift register? Right Ans - Circulate
How is shift left set up in 4 bit shift register? Right Ans - Load
Does shift right use serial or parallel transfer? Right Ans - Serial
In what type of circuits is shift left used? Right Ans - Registers that perform
math
What is the purpose of 8 bit shift register? Right Ans - transfer 8 bits of
binary data from one circuit to another
Which type of data is shifted manually with no fixed time relationship?
Right Ans - Asynchronous
What type of data is shifted automatically with a fixed time relationship?
Right Ans - Synchronous (controlled by clock pulse)
Serial inputs in 8 bit register are synchronous or asynchronous? Right Ans
- Synchronous, controlled by clock
Parallel inputs in 8 bit register are synchronous or asynchronous Right Ans
- Asynchronous, controlled by HIGH pre enable
What is the purpose of a 64 bit memory circuit? Right Ans - capable of
storing 64 bits of data until needed
What is a complete piece of digital information known as? Right Ans - word
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