Programming Concepts FC0-U71 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which of the following is an example of a syntax error?

   • AAdding two numbers when the result is not used.
   • BUsing a variable before it is initialized.
   • CMissing a semicolon at the end of a statement.
   • DDividing by zero.
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2. 2expert · medium

   A developer is reviewing two code snippets that are supposed to do the same thing. Snippet 1: `if (x > 0) { print("Positive"); }`. Snippet 2: `if (x > 0) print("Positive");`. Both snippets compile and run correctly. What is the key difference between them?

   • ASnippet 1 is more readable and less error-prone if more statements are added later.
   • BSnippet 2 will run faster because it has fewer characters.
   • CSnippet 1 is semantically different from Snippet 2.
   • DSnippet 1 is syntactically correct, while Snippet 2 is not.
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4. 3application · easy

   A developer defines a function `calculateDiscount(price, percent)` that returns the discounted price. They call it with `calculateDiscount(100, 10)`. What is the return value?

   • A90
   • B10
   • C100
   • D110
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5. 4foundation · easy

   In most programming languages, what is the purpose of declaring a variable before using it?

   • ATo reserve a named memory location that can store a value and be referenced later in the program.
   • BTo define a fixed value that cannot be changed during program execution.
   • CTo permanently store the variable's value on disk so it survives program termination.
   • DTo create a new data type that can be used throughout the program.
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6. 5application · easy

   A developer writes the following code: `if x = 5 { print("x is 5") }`. The program fails to compile. What is the most likely cause?

   • AThe print statement is missing a semicolon.
   • BThe assignment operator `=` is used instead of the equality operator `==`.
   • CThe braces `{}` are not indented correctly.
   • DThe variable `x` is not declared.
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