Digital Logic Design (DLD) Test QUESTIONS with
100% Correct Answers Already Passed
A system is a structure that is guaranteed to exhibit _______, assuming all of its components
obey their specified behaviors. - ✔✔a specified behavior
What maintains the obligations and responsibilities of every system component? -
✔✔contracts
How do we implement devices with high reliability? - ✔✔We use a representation
convention that forbids a range of voltages between 0 and 1
A combinational device is a circuit element that has: - ✔✔1. one or more digital inputs
2. one or more digital outputs
3. a functional specification
Can a combinational device contain directed cycles?(Yes/no) - ✔✔No
Does a wire obey the static discipline? (yes/no) - ✔✔No
What are sources of power supply noise? - ✔✔IR drop
L(dl/dt) drop
What must accept marginal inputs and provide unquestionable outputs? - ✔✔Combinational
device
What does the VTC acronym mean? - ✔✔Voltage Transfer Characteristic
, The VTC of a buffer is: - ✔✔nonlinear and with a gain > 1
The VTC measures: - ✔✔static behavior
If we design a system with lots of gain, what will that buy us? - ✔✔a big noise margin
Current flows between the diffusion terminals in a MOSFET if the voltage on the gate terminal
is large enough to create a conducting "channel", otherwise the MOSFET is off and the diffusion
terminals are not connected.(T/F) - ✔✔True
What are the four terminals of a Field Effect Transitor? - ✔✔gate, source, drain, and bulk
You should only use PFETs in what kind of circuits? - ✔✔pullup
We want _________ pullup and pulldown logic, i.e., the pulldown should be on when the pulp
is off and vice versa. - ✔✔complementary
In the general CMOS gate recipe, the output node is always a low-impedance node in the
steady state.(T/F) - ✔✔True
If there is no change in value from input to output through a circuit, then the process takes zero
time. (T/F) - ✔✔False
What kind of bound is had on the delay from valid inputs to valid outputs? - ✔✔upper
[A] delay is a [B] bound on the delay from any invalid input to an invalid output. - ✔✔[A]
Contamination
100% Correct Answers Already Passed
A system is a structure that is guaranteed to exhibit _______, assuming all of its components
obey their specified behaviors. - ✔✔a specified behavior
What maintains the obligations and responsibilities of every system component? -
✔✔contracts
How do we implement devices with high reliability? - ✔✔We use a representation
convention that forbids a range of voltages between 0 and 1
A combinational device is a circuit element that has: - ✔✔1. one or more digital inputs
2. one or more digital outputs
3. a functional specification
Can a combinational device contain directed cycles?(Yes/no) - ✔✔No
Does a wire obey the static discipline? (yes/no) - ✔✔No
What are sources of power supply noise? - ✔✔IR drop
L(dl/dt) drop
What must accept marginal inputs and provide unquestionable outputs? - ✔✔Combinational
device
What does the VTC acronym mean? - ✔✔Voltage Transfer Characteristic
, The VTC of a buffer is: - ✔✔nonlinear and with a gain > 1
The VTC measures: - ✔✔static behavior
If we design a system with lots of gain, what will that buy us? - ✔✔a big noise margin
Current flows between the diffusion terminals in a MOSFET if the voltage on the gate terminal
is large enough to create a conducting "channel", otherwise the MOSFET is off and the diffusion
terminals are not connected.(T/F) - ✔✔True
What are the four terminals of a Field Effect Transitor? - ✔✔gate, source, drain, and bulk
You should only use PFETs in what kind of circuits? - ✔✔pullup
We want _________ pullup and pulldown logic, i.e., the pulldown should be on when the pulp
is off and vice versa. - ✔✔complementary
In the general CMOS gate recipe, the output node is always a low-impedance node in the
steady state.(T/F) - ✔✔True
If there is no change in value from input to output through a circuit, then the process takes zero
time. (T/F) - ✔✔False
What kind of bound is had on the delay from valid inputs to valid outputs? - ✔✔upper
[A] delay is a [B] bound on the delay from any invalid input to an invalid output. - ✔✔[A]
Contamination
