Which command is used to initialize Vault after first starting the Vault service?

Which command is used to initialize Vault after first starting the Vault service?
A . vault create key
B . vault operator init
C . vault operator initialize keys
D . vault start
E . vault operator unseal

Answer: B

Explanation:

The vault operator init command initializes a Vault server. Initialization is the process by which Vault’s storage backend is prepared to receive data.

This only happens once when the server is started against a new backend that has never been used with Vault before.

Reference link is below: – https://www.vaultproject.io/docs/commands/operator/init