Quiz on Reliability Engineering

What is the first guideline for dependable programming?

• Include timeouts when calling external components

• Check all inputs for validity

• Limit the visibility of information in a program

• Provide restart capabilities

Why should inputs be checked for validity?

• To prevent unpredictable behavior and security threats

• To ensure they are processed quickly

• To minimize the use of error-prone constructs

• To allow for easier debugging

What is a consequence of using error-prone constructs?

• Improved code readability

• Program faults due to human error

• Reduced human error

• Increased program efficiency

What should be done to handle exceptions in a program?

• Ignore them to reduce complexity

• Provide a handler for all exceptions

• Log them for future reference

• Automatically restart the program

What is the purpose of providing restart capabilities?

• To simplify the programming process

• To enable the system to recover from failures without losing progress

• To allow users to redo their actions

• To enhance user experience

What is a bounded buffer vulnerability?

• A technique for error handling

• A type of memory leak

• Accessing memory outside the range of an array

• A method for improving program speed

Why should timeouts be included when calling external components?

• To improve user interface responsiveness

• To ensure faster processing

• To reduce the complexity of the code

• To avoid silent failures from remote computers

What is the benefit of naming constants that represent real-world values?

• It allows for more complex calculations

• It reduces the likelihood of errors when changing values

• It simplifies the debugging process

• It makes the code longer

What does MTTF stand for in reliability measurement?

• Minimum Time To Fix

• Mean Time To Function

• Maximum Time To Function

• Mean Time To Failure

What is an operational profile?

• A set of test data reflecting actual usage patterns

• A summary of system failures

• A list of programming guidelines

• A method for error detection