CompTIA Tech+ (FC0-U71)Software Development ConceptsEasy
A developer is writing a program that needs to check if a user is at least 18 years old to access certain content. The program should only proceed if this condition is met. Which type of programming control structure is essential for implementing this conditional execution?
- AFunction
- BArray
- CBranching
- DLoop
Show answer & explanationAnswer & explanation
Correct answer: C. Branching
Branching (using constructs like if-else statements) is essential for conditional execution, allowing the program to execute different blocks of code or proceed only if a specific condition (e.g., age >= 18) is met.
Why the other options are wrong
- A. A function is a reusable block of code, but the decision to call it or not, or logic within it, requires branching.
- B. An array is a data structure for storing collections, not a control structure for conditional execution.
- D. A loop repeats a block of code, it doesn't primarily handle conditional execution to proceed or not.
Branching (Control Structure)
A control flow statement that allows a program to execute different blocks of code based on whether a specified condition evaluates to true or false. It enables conditional execution paths.
- Allows conditional execution.
- Typically uses IF, ELSE IF, ELSE.
- Program flow diverges based on a condition.
Memory trick: Branching: Choose a 'branch' based on a condition.