CompTIA Tech+ FC0-U71 Course Material
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What is sequential flow in a program?
Code that runs in the order it is written
Code that never runs
Code that runs in a random order
Code that runs only once
Code that runs in the order it is written
Code that never runs
Code that runs in a random order
Code that runs only once
Explanation
Why are comments ignored by the computer?
Because they are not part of the executable code
Because they are written in a different language
Because they are placed at the end of the code
Because they are written in uppercase letters
Because they are not part of the executable code
Because they are written in a different language
Because they are placed at the end of the code
Because they are written in uppercase letters
Explanation
What is branching in computer programming?
A way to store data in a program
A way to repeat a sequence of instructions
A technique to speed up a program
A method to execute a different sequence of instructions based on a condition
A way to store data in a program
A way to repeat a sequence of instructions
A technique to speed up a program
A method to execute a different sequence of instructions based on a condition
Explanation
What is a loop in programming?
A sequence of instructions that is never executed.
A sequence of instructions that is executed randomly.
A sequence of instructions that is executed only once.
A sequence of instructions that is executed repeatedly.
A sequence of instructions that is never executed.
A sequence of instructions that is executed randomly.
A sequence of instructions that is executed only once.
A sequence of instructions that is executed repeatedly.
Explanation
What do you put inside the parentheses when using a function?
The arguments or values the function needs to process
The function's return value
The function's definition
The function's name
The arguments or values the function needs to process
The function's return value
The function's definition
The function's name
Explanation
Sequential flow in a program refers to code that runs in the order it is written. This is the normal flow of execution where the program starts at the beginning and continues step by step, line by line, unless otherwise directed by control structures like loops or conditionals.
When using a function, you put the arguments or values the function needs to process inside the parentheses. These arguments are passed to the function so it can perform its operation on them.
Comments are ignored by the computer because they are not part of the executable code. They are included for human readers to provide explanations or notes about the code, but the computer skips over them during execution.
Branching in computer programming is a method to execute a different sequence of instructions based on a condition. It allows the program to "branch" into different paths depending on certain conditions, often using structures like if, else, or switch statements.
A loop in programming is a sequence of instructions that is executed repeatedly. The loop continues until a certain condition is met, such as with for, while, or do-while loops. This allows the same block of code to run multiple times.
The main purpose of pseudocode is to describe what the code will do using plain language. It helps programmers plan and structure their code without worrying about specific syntax, making it easier to understand the logic before translating it into actual programming code
The main purpose of a flowchart in programming is to show the flow (sequence) of logic in a program. It provides a visual representation of the steps, decisions, and paths a program will take, helping to plan, analyze, and communicate the program’s structure before actual coding begins.
Before starting to code a program, you should decide what the program should do. This involves planning and defining the program's purpose, functionality, and logic to ensure that you have a clear understanding of the goals and requirements before writing any code
A diamond shape in a flowchart indicates a decision point. This is where a condition is evaluated, and based on the result (typically "yes" or "no"), the flowchart branches into different paths.
The main purpose of pseudocode is to describe what the code will do using plain language. It allows programmers to outline their ideas and algorithms in a clear and understandable way without the constraints of specific programming syntax, making it easier to convert into actual code later
A variable in a computer program is a container that holds data for use later. It allows you to store, modify, and retrieve values throughout the program, and its value can change during execution.
An example of a character variable is '7'. In programming, character variables typically hold a single character or symbol, often represented using single quotes. The other options represent different data types:
- 3.14 is a floating-point number.
- False is a boolean value.
- "555-1212" is a string.
A floating-point number is a number that can have decimal fractions. It is used to represent real numbers and can accommodate a wide range of values, including those with fractional parts, unlike whole numbers (integers).
An example of an integer is 23. Integers are whole numbers that can be positive, negative, or zero, and do not have decimal fractions. The other options (9.95, 4.1, and 5.62) are all floating-point numbers.
When you enter a number as a character, you cannot perform math operations with it. Characters are treated as individual symbols or letters, so even if the character looks like a number (e.g., '5'), it is not treated as a numeric value for calculations. Instead, it may be stored as a string if it is enclosed in quotes.