What is a benefit of using a combination of symmetrical and asymmetrical cryptography when transferring data across the internet?

Asymmetric cryptography, is a cryptographic system that uses two different types of keys both public and private keys. Symmetric cryptography on the other hand uses the same type of key for both encryption. The benefit of using a combination when transferring data across the internet is that Asymmetrical cryptography is necessary to establish a secure connection while symmetrical cryptography can enhance the speed of the data transmission after connection has been established, thus both provide a unique benefit.