Design Microservices Architecture with Patterns and Principles - Fallback Pattern

The video tutorial explains the Fall Back pattern, which provides an alternative behavior or response when a service request fails or times out. It involves defining a fallback function to handle failures, improving system reliability and stability. The tutorial includes a real-world example of an ecommerce application using the pattern to manage shopping cart and payment processing services.

What is the primary purpose of the Fall Back pattern?

• To enhance the speed of service calls

• To increase the complexity of system architecture

• To provide alternative responses when requests fail

• To reduce the cost of service operations

Which of the following is NOT a typical alternative response provided by the Fall Back pattern?

• Offering retry options

• Increasing server capacity

• Displaying a default message

• Using cached data

In the context of the Fall Back pattern, what is a fallback function?

• A function that increases the system's complexity

• A function that logs errors in the system

• A function that provides an alternative response when a service fails

• A function that speeds up service calls

How does the Fall Back pattern improve system reliability?

• By providing alternative actions when services fail

• By reducing the number of service calls

• By increasing the number of servers

• By simplifying the system architecture

In the e-commerce example, what alternative response might be used if the payment processing service is unavailable?

• Automatically cancel the order

• Display an error message or offer retry options

• Increase the price of items in the cart

• Redirect to a different website