What is a key characteristic of programs using non-defensive design?
Prone to crashes
Match the benefit of defensive design with its explanation:
Reliability ↔️ Prevents crashes due to invalid input
Security ↔️ Reduces vulnerabilities to exploits
User Experience ↔️ Ensures smooth operation
What does exception handling allow a program to do instead of crashing?
Recover gracefully
Defensive design in computer programming refers to the practice of anticipating and handling errors or unexpected inputs to make programs more reliable
Order the key steps in defensive design principles:
1️⃣ Anticipating errors
2️⃣ Checking inputs
3️⃣ Validating data
4️⃣ Handling exceptions
Defensive design produces robust and secure programs by anticipating and handling unexpected inputs
Input validation involves thoroughly checking and sanitizing all user inputs to ensure they are valid, safe, and within expected parameters
Defensive design produces robust and secure programs that are reliable and provide a good user experience
Match the defensive design technique with its description:
Input Validation ↔️ Checks and sanitizes user inputs
Exception Handling ↔️ Anticipates and handles errors
Defensive Programming Practices ↔️ Writes resilient and failure-tolerant code
In a file processing application, using try-catch blocks to handle file not found errors is an example of exception handling.
True
Defensive design in computer programming refers to the practice of anticipating and handling errors or unexpected inputs to make programs more reliable
Defensive design is crucial because it enhances reliability, improves security, and enhances the user experience
The key principles of defensive design include input validation, exception handling, and defensive programming practices
Defensive design employs techniques such as input validation, exception handling, and defensive programming practices
Defensive design assumes all inputs are valid.
False
Defensive design enhances program reliability by preventing crashes due to unexpected conditions.
True
Why is defensive design crucial in computer programming?
Enhances reliability, security, user experience
Exception handling allows a program to gracefully recover from errors instead of crashing.
True
What is input validation in defensive design?
Checking and sanitizing user inputs
What are the benefits of employing defensive design techniques?
Reliability, security, user experience
What is the purpose of making defensive copies of data in a database-backed application?
To prevent data loss
Defensive design assumes all inputs are valid.
False
How does defensive design improve reliability in programs?
Prevents crashes due to invalid input
Input validation prevents crashes and security vulnerabilities.
True
Match the defensive design technique with its purpose:
Input Validation ↔️ Ensures inputs are safe and valid