Welcome to ECE Board Exam Practice Quiz for Computer Fundamentals. This set of practice quiz 6 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
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- You have to get 70% of the total items to pass the quiz.
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Choose the letter of the best answer in each questions.
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The time difference which results when a clock may not arrive at all flip-flops at precisely the same time.
Glitch
Spike
Hold
Clock skew
Correct!
Wrong!
A counter that counts sequentially but does not step through all possible states, it returns to zero after a particular state.
Ripple counter
Decade counter
Truncated counter
Binary counter
Correct!
Wrong!
An included input terminals in a magnitude comparator IC which is significant when both inputs compared are equal is called as its
setting
cascading inputs
input terminals
address
Correct!
Wrong!
The one-input RS flip-flop is the _______ flip-flop.
T
D
R
Latch
Correct!
Wrong!
It is said to be a universal gate because any digital system can be implemented with it.
NAND
AND
OR
Exclusive OR
Correct!
Wrong!
A circuit designed to produce a clean output in response to a switch closure.
Monostable circuit
Filter circuit
Attenuator
Debouncing circuit
Correct!
Wrong!
A type of computer bus which is bidirectional.
Data bus
Address
Control bus
Calling bus
Correct!
Wrong!
The state of a flip-flop when Q = 0 and Q’ = 1
Reset
Set
Trigger state
Tristate
Correct!
Wrong!
A one-input JK flip-flop is the _______ flip-flop.
D
T
S-R
C
Correct!
Wrong!
A state causing the flip-flop to change or reverse its state.
Reset
Set
Toggle
Non-toggle
Correct!
Wrong!
A ring counter where the output is inverted and tied back to the input
Shift counter
Decade counter
BCD counter
Johnson counter
Correct!
Wrong!
A programmable block of logic within a gate array, that contains a flip-flop for storage and also allows the user to specify logic functions on its inputs.
Programmed block
PLD
Configurable logic block
Block diagram
Correct!
Wrong!
In clock circuits, SWG means
square wave glitches
standard wire gauge
square wave generators
standard wave ground
Correct!
Wrong!
This bus carries lines that control the operation of the memory from the microprocessor to the memory.
Data bus
Address bus
Control bus
Bus lines
Correct!
Wrong!
If F = xy + x’y’ Boolean expression is to be implemented using decoders and OR gates, the connection involves
2 to 4 line decoder with 3 OR gates
3 to 8 line decoder with 2 OR gates
2 to 4 line decoder with 1 OR gate
3 to 8 line decoder with 4 OR gates
Correct!
Wrong!
An n-bit binary parallel adder requires ________ in its least design.
n half adders
n half subtractor
n full adders
n half subtractor and n full adder
Correct!
Wrong!
Correcting the faults in a circuit or a system.
Buzz-out
Debugging
Trap
Fault corrector
Correct!
Wrong!
A situation in a system where it can never leave or progress to another state.
Rest
Hang-up state
No change in state
Toggle
Correct!
Wrong!
A small change made in resistance or capacitance to time a circuit precisely.
Trigger
Tweaking
Bounce
Squeaking
Correct!
Wrong!
A register which holds the data being written into or read out of the addressed memory location.
Hold register
Memory data register
Memory address register
Glitch register
Correct!
Wrong!
The state of the flip-flop before the occurrence of a clock pulse is called as its
present state
next state
current input
present output
Correct!
Wrong!
An input that disables multiplexers or demultiplexers when it is HIGH.
Strobe
Keyboard
Decoder
Binary input
Correct!
Wrong!
From a 3-bit binary counter design using T flip-flops, determine the number of T flip-flops needed in its circuit implementation.
1
2
3
4
Correct!
Wrong!
A sequential logic circuit where the storage elements commonly used are time-delay devices (usually gates).
Synchronous SLC
Asynchronous SLC
Counter
Register
Correct!
Wrong!
An outstanding advantage of LCDs from LEDs.
LCDs are organized as a 7-segment display for numerical read out
LCDs can be multiplexed
LCDs essentially act as a capacitor and consume almost no power
LCDs generates light
Correct!
Wrong!
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Computer Fundamentals – Quiz 06
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