Which of the following are valid types of tokens available in Vault?

Comprehensive and Detailed In-Depth Explanation:

Vault supports several token types, each with distinct characteristics:

B. Batch token: "Batch tokens are encrypted binary large objects (blobs) that carry just enough information for authentication." They are lightweight and non-renewable.

C. Orphan service token: "Orphan tokens are not children of their parent; therefore, do not expire when their parent does." A valid subtype of service tokens.

D. Service token: "Service token is the general token that most people talk about when referring to a token in Vault." The standard token type.

E. Root token: "Root tokens are the most powerful tokens in Vault and have full control." Created during initialization.

F. Periodic service token: "Periodic service tokens have a TTL, but no max TTL," renewing automatically for long-running tasks.

Incorrect Option:

A. Primary token: "Not a valid token type in Vault." No such term exists in Vault’s documentation.

These token types cater to various use cases, from ephemeral to privileged access.