Comprehensive and Detailed In-Depth Explanation:

Vault supports multiple auth methods by default. The Vault documentation states:

"Auth methods are the components in Vault that perform authentication and are responsible for assigning identity and a set of policies to a user. Available auth methods include AppRole, JWT/OIDC, Kubernetes, LDAP, and more."

—Vault Auth Methods

B: Kubernetes is supported:

"Kubernetes authentication method in Vault allows Kubernetes service accounts to authenticate with Vault."

—Vault Auth: Kubernetes

D: LDAP is supported:

"LDAP authentication method allows users to authenticate against an LDAP directory."

—Vault Auth: LDAP

E: AppRole is supported:

"AppRole authentication method in Vault allows machines or applications to authenticate with Vault."

—Vault Auth: AppRole

F: JWT is supported:

"JWT authentication method in Vault allows users to authenticate using JSON Web Tokens (JWT)."

—Vault Auth: JWT

A: SSH is a secrets engine, not an auth method.

C: VMware is not a default auth method.