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:

• Question 16: Hand - tracing allows developers to step through the code manually, following the logic flow. This helps in identifying where the logic goes wrong. Creating new test cases (A) is more about testing functionality. Rerunning with different inputs (C) is for input - output analysis. Running a simulation (D) is for complex system modeling.
• Question 17: When accessing an invalid index in a list, it is a runtime error. A logic error (A) is when the code runs but gives incorrect results due to wrong logic. An overflow error (B) is related to exceeding memory limits. A syntax error (D) is a violation of the programming language's grammar rules.
• Question 18: An event - driven programming example is a mobile device that orients to a new position. This is triggered by an event (the change in position). Prompting a user (A) is more of a sequential input - output. Using constants (B) is about data handling. A microphone transmitting audio (D) is a data - transfer mechanism.

Answer:

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