Which duties are the responsibility of a company that is using AWS Lambda?

Explanations:

Security inside of code is the responsibility of the company, as they need to ensure that the code they deploy is secure, follows best practices, and is free of vulnerabilities.

AWS Lambda abstracts the underlying infrastructure, including CPU resources, so users do not have the ability to select or manage specific CPU resources for their functions.

Patching of the operating system is managed by AWS, as Lambda runs on AWS-managed infrastructure. Users do not need to patch or maintain the underlying operating system.

Writing and updating of code is the responsibility of the company using AWS Lambda. Users must create and maintain their code that runs in Lambda functions.

Security of the underlying infrastructure is AWS’s responsibility. AWS ensures that the physical servers, networking, and facilities are secure, while users are responsible for their applications.