DVEP - DIGITAL CERTIFICATION EXAM QUESTIONS &
ANSWERS
Why are differentiators used as part of digital input circuitry?
To produce a sharp spike
To clamp the input signal
To produce a square wave
To produce a flat line output - Answers :To clamp the input signal
[1]
The symbol in Fig. 14 is for a:
NAND Set/Clear flip flop
AND Set/Clear flip flop
NOR D-type flip flop
NOR J-K flip flop - Answers :NAND Set/Clear flip flop
[2]
The circuit in figure 13 is a/an:
A. R-S flip flop
B. S-C flip flop
C. Both A and B are correct
D. None of the above are correct - Answers :B
[3]
In the Circuit shown in Figure 15, Q will go clear when:
The clock is high
The clock is low
S = Low and R = High
S = High and R = Low - Answers :S = Low and R = high
What is the basic type of removable (replaceable) memory you will find in standard
desktop computers?
ROM
RAM
EPROM
EAROM - Answers :RAM
What other name is Gray code known as?
Torrent code
, Tidal code
Cyclic code
Sequential code - Answers :Cyclic code
What happens to power when the negative exponent decreases by 1 (From 2^-2 to 2^-
3)
The weight of the number is halved
The weight of the number is double
The weight of the number remains the same
The weight of the Number decreases exponentially - Answers :The weight of the
number is halved
The "1" in binary number 100000 carries a decimal weight of
16
32
1010
10000 - Answers :32
Convert 76 to binary
1011100
1001101
1110110
1001100 - Answers :work
Which component of a computer microprocessor performs simple logic functions such
as AND, OR, and EXCLUSIVE-OR?
Control
Interfacing
Direct memory access
Arithmetic logic unit (ALU) - Answers :Arithmetic logic unit (ALU)
What CPU function interfaces the computer with the peripheral devices?
Control
Input/output
Main memory
Arithmetic logic - Answers :Input/output
A Logic Pulser can be used as a:
Logic probe
Pulse generator
ANSWERS
Why are differentiators used as part of digital input circuitry?
To produce a sharp spike
To clamp the input signal
To produce a square wave
To produce a flat line output - Answers :To clamp the input signal
[1]
The symbol in Fig. 14 is for a:
NAND Set/Clear flip flop
AND Set/Clear flip flop
NOR D-type flip flop
NOR J-K flip flop - Answers :NAND Set/Clear flip flop
[2]
The circuit in figure 13 is a/an:
A. R-S flip flop
B. S-C flip flop
C. Both A and B are correct
D. None of the above are correct - Answers :B
[3]
In the Circuit shown in Figure 15, Q will go clear when:
The clock is high
The clock is low
S = Low and R = High
S = High and R = Low - Answers :S = Low and R = high
What is the basic type of removable (replaceable) memory you will find in standard
desktop computers?
ROM
RAM
EPROM
EAROM - Answers :RAM
What other name is Gray code known as?
Torrent code
, Tidal code
Cyclic code
Sequential code - Answers :Cyclic code
What happens to power when the negative exponent decreases by 1 (From 2^-2 to 2^-
3)
The weight of the number is halved
The weight of the number is double
The weight of the number remains the same
The weight of the Number decreases exponentially - Answers :The weight of the
number is halved
The "1" in binary number 100000 carries a decimal weight of
16
32
1010
10000 - Answers :32
Convert 76 to binary
1011100
1001101
1110110
1001100 - Answers :work
Which component of a computer microprocessor performs simple logic functions such
as AND, OR, and EXCLUSIVE-OR?
Control
Interfacing
Direct memory access
Arithmetic logic unit (ALU) - Answers :Arithmetic logic unit (ALU)
What CPU function interfaces the computer with the peripheral devices?
Control
Input/output
Main memory
Arithmetic logic - Answers :Input/output
A Logic Pulser can be used as a:
Logic probe
Pulse generator
