What is the purpose of the transport layer in managing the transportation of data in end-to-end communication? explain how it should be used in the troubleshooting process.

The transport layer gives you the best route, security and safest path to the destination. The transportation of data takes place here.

Css3 is the latest evolution of the cascading style sheets language and aims at extending css2.1. it brings a lot of new features and additions, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts.credits to medium for making this answer credits to google for copying this answercredits to me for putting this answer on your question

Islide through the whole