Software Development - Chapter 15

Define what is concatenation. How do you concatenate in pseudocode? How about in Python?

• Concatenation means joining strings together. Use "&" in pseudocode, and use "+" in Python

• Concatenation means splitting strings apart. Use "|" in pseudocode, and use "-" in Python

• Concatenation means joining strings together. Use "#" in pseudocode, and use "&" in Python

• Concatenation means joining strings together. Use "@" in pseudocode, and use "*" in Python

Given the inputs A and B, illustrate an FSM that accepts strings with at least 3 A's.

• A state machine that accepts any string of A's and B's regardless of the number of A's.

• A state machine that only accepts strings that start with 3 A's followed by any number of B's.

• A state machine that rejects all strings containing less than 3 A's.

What is a parameter? What is an argument?

• Parameters are the actual data values passed into a subroutine, while arguments are variables used inside a subroutine.

• Parameters are variables used inside a subroutine which will take values passed into a subroutine when called, while arguments are actual data values passed into the subroutine.

• Parameters are the names of functions, while arguments are the return values of those functions.

• Parameters are used to define the scope of a variable, while arguments are used to initialize a variable.

Consider a car sale program, Convert the following structured English into structured chart: 1. Input the pricePaid, mileage, regDate 2. Calculate the selling price based on the given inputs 3. Calculate the profit 4. Output selling price, and profit

• 1. Input the pricePaid, mileage, regDate; 2. Calculate the selling price; 3. Output selling price; 4. Calculate the profit

• 1. Input the pricePaid; 2. Calculate the profit; 3. Output profit; 4. Calculate the selling price

• 1. Input the mileage, regDate; 2. Calculate the selling price; 3. Calculate the profit; 4. Output selling price, profit

• 1. Input the pricePaid, mileage, regDate; 2. Calculate the selling price based on the given inputs; 3. Calculate the profit; 4. Output selling price, and profit

What is a Mealy Machine?

• An FSM that produces outputs based on the current state and the input.

• A type of Turing machine that accepts regular languages.

• A finite state machine that produces outputs based only on the current state.

• A computational model that uses a stack to manage input and output.

What is the role of iterative and incremental models in software development?

• They allow for gradual improvements and refinements to the software based on ongoing feedback.

• They focus on completing the entire project before any testing occurs.

• They eliminate the need for user feedback during the development process.

• They require a fixed set of requirements that cannot change during development.

What is the purpose of testing methods in software development?

• To identify and fix errors in the software before it is deployed.

• To enhance the aesthetic design of the software interface.

• To increase the software's marketability and sales.

• To reduce the overall development time of the software.

Given a following string, create a procedure wherein it counts the number of occurrences per vowel. Example: HOney LEmon. a - 0, e - 2, i - 0, o - 2, u - 0. Catch lower and upper cases.

• a - 1, e - 2, i - 0, o - 2, u - 0

• a - 0, e - 2, i - 1, o - 2, u - 0

• a - 0, e - 2, i - 0, o - 1, u - 0

• a - 0, e - 2, i - 0, o - 2, u - 1

What does the term slicing in Python means?

• Getting a substring within a string by providing lower and upper index (e.g. Word[2:6])

• Dividing a list into equal parts

• Creating a copy of a string

• Removing whitespace from a string

Improve the FSM wherein the menu choices contains the following states:

1. 1. Dispense Cash
2. 2. Display Balance
3. 3. Card Ejected
4. Label your events properly

• Multiple possible answers. Right answer will depend on accuracy and clarity.

• Only one correct answer is acceptable.

• All menu choices must be displayed at once.

• Events should not be labeled.