Question

1. which method of finding errors is most useful to identify logic errors? *

a. creating new test cases
b. hand - tracing
c. rerunning the program with different inputs to see the impact on outputs
d. running a simulation

1. attempting to access an invalid index in a list results in what type of error?

a. logic error
b. overflow error
c. runtime error
d. syntax error

1. what is an example of event - driven programming? *

a. prompting a user to type in a response
b. using constants for data values in place of variables
c. a mobile device that orients to a new position
d. a microphone transmitting audio data to a program

Explanation:

1. For question 16: Hand-tracing involves manually walking through code execution, which directly exposes flawed logic flow that causes logic errors, making it the most targeted method for this error type.
2. For question 17: An invalid list index access occurs while a program is running, triggering an error that halts or disrupts execution during runtime, fitting the definition of a runtime error.
3. For question 18: Event-driven programming responds to external events; a mobile device adjusting orientation in response to a position change (a hardware event) is a classic example of this paradigm.

Answer:

1. B. Hand-tracing
2. C. Runtime error
3. C. A mobile device that orients to a new position