Computer Fundamentals Practice Quiz 09

Computer Fundamentals Practice Quiz 09

Welcome to ECE Board Exam Practice Quiz for Computer Fundamentals. This set of practice quiz 9 will test your competence on the theories, concepts and problem solving involving computer fundamentals. The objectives and goals of this quiz is to help engineering students familiarize concepts and theories as well as develop problem solving skills when answering questions related to the computer fundamentals.

Computer Fundamentals Test Bank

In this section are compiled practice quiz for Computer Fundamentals that could be able to enhance your knowledge and skills in your preparation for the ECE Board Exam. The goal is to add thousands of questions for you to be familiarized and hopefully help you to be prepared. I am looking forward that this practice quiz will give you an additional confidence in taking your upcoming Engineering Board Exam.

Guidelines:
  • Read and understand each question before choosing the best answer.
  • The correct answer will be reveal after you have chosen your answer for every questions
  • There is no time limit, answer the questions at your own pace.
  • Once all questions are answered, you will be shown your rating.
  • You have to get 70% of the total items to pass the quiz.
  • You can re-take the quiz as many times as you want or until you are satisfied of your rating.
  • Comment us your thoughts, scores, ratings, and questions about the quiz in the comments section below!

Choose the letter of the best answer in each questions.

What is the major advantage of serial transfer over parallel transfer?
large interconnections between gates
one at a time transmission
fewer interconnections between registers
speed

Correct!

Wrong!

A translated program in machine language is called
a source program
an object program
machine program
users program

Correct!

Wrong!

Arrival of a clock signal at the clock inputs of different flip-flops at different times as a result of propagation delays.
Clock transition
Buffer address
Clock skew
None of the choices

Correct!

Wrong!

Low speed modems method of modulation is usually
phase-shift modulation
dibit modulation
frequency shift keying
amplitude modulation

Correct!

Wrong!

The system program used to translate directly an assembly language to machine language is called
assembler
compiler
text editor
debugger

Correct!

Wrong!

Meaning of checksum in ROM’s
It is a code placed in the last one or two ROM locations that represents the sum of the expected ROM data from all other locations.
Used as a means to test for leakage in one or more ROM locations
prevents decoding glitches
regulates ROM

Correct!

Wrong!

The processor or central processing unit is
the heart of the computer
employed RISC
communicates with the user
supports floating point numbers

Correct!

Wrong!

Which type of flip-flop is best suited for synchronous transfer because it requires the fewest interconnections from one flip-flop to the other?
JK
T
RS
D

Correct!

Wrong!

An analog memory output circuit used to eliminate aperture error is called a
MUX
DMUX
Track/store amplifier
Flip-flop

Correct!

Wrong!

Why are voltage DAC’s generally slower than current DAC’s?
Because of the response time of the op-amp current-to-voltage converter
Because of its internal construction
Because voltage DAC’s have many heat losses
None of the choices

Correct!

Wrong!

A logic circuit that depends on the status of its selected inputs will channel its data input to one of several data outputs.
MUX
DMUX
RAM
ROM

Correct!

Wrong!

Which of the following is a non-volatile device?
ROM
RAM
PLA
PLD

Correct!

Wrong!

What does a computer do with the data it receives from an ADC?
Stores the data
Performs calculation
Processes the data
All of the choices

Correct!

Wrong!

When a flip-flop is set, what are the states of Q and Q’?
Q = 1, Q’ = 0
Q = 0, Q’ = 1
Q = 0, Q’ = 0
Q = 1, Q’ = 1

Correct!

Wrong!

The most important memory element which is made of an assembly of logic gates is called
latch
bistable multivibrator
flip-flop
all of the choices

Correct!

Wrong!

The maximum deviation of DAC output from its ideal value, expressed as percentage of full scale.
Full scale error
Deviation ratio
Percentage error
None of the choices

Correct!

Wrong!

How many flip-flops are required for a counter that will count 0 to 255?
2
4
16
8

Correct!

Wrong!

How does the operation of asynchronous input differ from that of a synchronous input?
it works independently of the clock input
it is very dependent on the clock transition
it is mutually the same in function
Not determined by ordinary operation

Correct!

Wrong!

It is the required interval immediately following the active edge held of clocks during which the control inputs must be held.
Set up time
Hold time
Pulsing time
Propagation time

Correct!

Wrong!

Which of the items below is not one of the three major sections of an MPU?
Timing and control
ALU
Register
Inversion

Correct!

Wrong!

What device puts data on the data bus during a write operation?
ALU
CPU
Keyboard
Accumulator

Correct!

Wrong!

It is needed to translate a high-level program into a sequence of machine instructions that performs the desired task.
Assembler
Interpreter
Compiler
Debugger

Correct!

Wrong!

The flip-flop can change only when the appropriate clock transition occurs. It is a condition called
edge triggered
latching
clocking
pulsing

Correct!

Wrong!

What will be the states of Q and Q’ after a flip-flop has been cleared?
Q = 1, Q’ = 0
Q = 0, Q’ = 1
Q = 0, Q’ = 0
Q = 1. Q’ = 1

Correct!

Wrong!

Speeds of modems are generally classified by the number of _________ they can transmit.
cycles per second
bits per second
frequency per second
all of the choices

Correct!

Wrong!

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Computer Fundamentals – Quiz 09

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