Welcome to ECE Board Exam Practice Quiz for Computer Fundamentals. This set of practice quiz 5 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:
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Choose the letter of the best answer in each questions.
PREVIOUS: Computer Fundamentals Practice Quiz 04
A table used by a PLD language such as PALASM, to calculate the expected outputs for a set of inputs.
Excitation table
State table
Simulation table
Truth table
Correct!
Wrong!
Which of the following does not describe a flip-flop?
It is a one-bit memory device.
Its interval circuitry are usually symmetrical
It is a bistable device
It is equivalent to a one-shot circuit
Correct!
Wrong!
An input signal that can activate or disable a gate.
Strobe
Glitch
Tristate
Wired-AND
Correct!
Wrong!
Application of excessive current to a fuse in order to open it.
Shorting
Blowing
Breaking
Disconnecting
Correct!
Wrong!
A circuit that produces an output pulse for a fixed period of time in response to a trigger and then returns to its quiescent state.
Monostable circuit
Astable circuit
Bistable circuit
Discriminator
Correct!
Wrong!
There are _________ flip-flops for a 3-bit binary counter.
2
3
4
5
Correct!
Wrong!
A flip-flop which follows its input in the next state.
T
D
JK
RS
Correct!
Wrong!
How many flip-flops should be used to realize 32-count capacity?
2
4
5
6
Correct!
Wrong!
How many AND gates and 4-bit binary adders are needed to implement a 2-bit to 3-bit binary multiplier?
15 AND gates and three 4-bit binary adders
2 AND gates and one 4-bit binary adder
9 AND gates only
6 AND gates and one 4-bit binary adder
Correct!
Wrong!
A _______ condition that exists if a circuit output depends on which of two nearly simultaneous inputs arrive at a point in the circuit first.
glitch
skew
clear
race
Correct!
Wrong!
The state of a flip-flop when Q = 1 and Q’ = 0.
Reset
Latch
Set
Glitch
Correct!
Wrong!
This type of bus carries the memory address from the computer to the memory.
Data bus
Address bus
Control bus
Parallel bus
Correct!
Wrong!
A JK flip-flop can be made to function like a T flip-flop by simply
connecting the J and K inputs together as one input
connecting J = 0 and K = 0
resetting all inputs of the JK
connecting earth ground the JK inputs
Correct!
Wrong!
A diagram consisting of a set of circles, where each circle contains a number of states within it.
State table
Transition diagram
Karnaugh map
Bubble diagram
Correct!
Wrong!
A circuit that goes through 2^n – 1 states in a random fashion.
Random generator
Pseudo-random sequence generator
Counting shift
Register
Correct!
Wrong!
A block added to the combinational logic circuit to form a sequential logic circuit is the
ROM
counter
clock
memory
Correct!
Wrong!
Which of the following is NOT an advantage of state tables in sequential logic circuit design?
They are the systematic approach to a design problem
The number of variables is limited
They minimize the gating required
They result in synchronous circuit
Correct!
Wrong!
A computer language that enables Programmable Array Logic (PAL) users to generate a file that can be used to blow a PAL.
JEDEC
PALASM
TURBO C++
Visual C
Correct!
Wrong!
The state of the flip-flop after the occurrence of a clock pulse is called as its
current state
present state
next state
current input
Correct!
Wrong!
A preproduction model of a system built for testing and debugging,
Wire list
Maybe (colloquial)
Prototype
Sample
Correct!
Wrong!
In designing a 16 x 1 multiplexer, how many selection lines are needed?
2
4
16
32
Correct!
Wrong!
A register which holds the address of the word currently being accessed.
Hold register
Memory address register
Memory data register
Access register
Correct!
Wrong!
A square wave oscillator or clock generator
Astable circuit
Monostable circuit
Bistable circuit
Debounding circuit
Correct!
Wrong!
Duty cycle for repetitive waveform is defined as the
Ratio of the ON time to the total time
Sum of the ON time and the OFF time
Ratio of the OFF time to the ON time
Ratio of the total time to the ON time
Correct!
Wrong!
A magnitude comparator has 22n entries in the truth table where n =
number of inputs
number of comparator bits
number of outputs
number of inputs and outputs
Correct!
Wrong!
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Computer Fundamentals – Quiz 05
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