Input, Output, and Processing

Question 1

What is syntax in programming?

Answer 1

Rules that dictate how code must be written in a programming language.

Question 2

What is debugging?

Answer 2

Process of finding and fixing errors in program code.

Question 3

What is an algorithm?

Answer 3

A step-by-step set of instructions for solving a problem.

Question 4

What’s the main advantage of pseudocode?

Answer 4

Allows focusing on program design without worrying about syntax rules.

Question 5

What do oval symbols represent in flowcharts?

Answer 5

Start and End points (Terminal symbols).

Question 6

What do parallelogram symbols represent in flowcharts?

Answer 6

Input and Output operations.

Question 7

What do rectangle symbols represent in flowcharts?

Answer 7

Processing steps.

Question 8

What are the three basic steps of program processing in order?

Answer 8

1. Receive input 2. Process data 3. Produce output

Question 9

What is an IPO chart used for?

Answer 9

Planning program’s Input, Processing, and Output components.

Question 10

What is a sequence structure?

Answer 10

Program statements that execute in order, one after another.

Question 11

What is a variable in programming?

Answer 11

A named storage location in memory that can hold data.

Question 12

What are three main rules for naming variables?

Answer 12

1. No spaces allowed 2. Can’t start with numbers 3. Use only letters and numbers

Question 13

What’s the difference between underscore and camelCase naming?

Answer 13

underscore_uses_underscores vs camelCaseUsesCapitalLetters

Question 14

What happens to a variable’s old value when assigned a new one?

Answer 14

The old value is replaced completely.

Question 15

What is variable initialization?

Answer 15

Assigning an initial value to a variable when it’s declared.

Question 16

Why are uninitialized variables dangerous?

Answer 16

They may contain unpredictable “garbage” values.

Question 17

What’s special about named constants?

Answer 17

Their values cannot be changed after initialization.

Question 18

What is the correct order of mathematical operations in programming?

Answer 18

1. Parentheses 2. Exponents 3. Multiplication/Division/Modulus 4. Addition/Subtraction

Question 19

What happens in integer division when the result has decimals?

Answer 19

The decimal portion is truncated (removed).

Question 20

What’s the difference between external and internal documentation?

Answer 20

External is for users (guides/tutorials), internal is for programmers (code comments).

Question 21

What are the two types of code comments?

Answer 21

Block comments (multiple lines) and line comments (single line).