Web Development Practices quiz advanced level

Test description

This test assesses general knowledge in web development. It touches several areas, from architecture, DevOps to web development fundamentals. It is more suitable for senior profiles in backend web development.
Topics: architecture, security, data architecture, performance, testing, I18n, software development fundamentals, DevOps, web technology fundamentals, Cloud.

Sample questions

1
You work on an online web shop and, currently, store all the cart items from your users (shoppers) in the browser's local storage. The setup is a simple microservices based app with a relational database.
The business wants to develop a mobile application and for this you need to have a shared cart between web and mobile (when a user adds an item to the cart from the web, it has to be shown also on mobile, and vice-versa).
What is the most optimal way to implement this?

Start using the relational database you already have, to store the carts data in a dedicated table(s).

Read from the browser's local storage on the mobile app.

Build an API for the Mobile client to read the cart contents stored in the local storage.

Use a server-side solution, different from the relational database, such as a caching system (e.g., Memcached, Redis) or a non-relational database.

Results between 1-7 / 25	35.76%
Results between 8-14 / 25	51.29%
Results between 15-21 / 25	12.24%
Results between 22-25 / 25	0.71%
Average results 9 / 25