What is the effect of setting a large TTL on a token in Vault?

Setting a large Time-To-Live (TTL) on a token in HashiCorp Vault means that the token will have an extended lifetime before it expires. The TTL defines the duration for which the token is valid and can be used to access secured paths and secrets within Vault. A larger TTL allows operators and applications to utilize the token for an extended period without needing to renew or re-authenticate.

This is particularly useful in scenarios where stability and ongoing access are critical, as it reduces the frequency of token renewal procedures that could disrupt operations. However, it is important to balance TTL settings, as excessively long TTLs might pose security risks if a token is compromised and remains valid for an extended time.

In contrast, the other options imply immediate expiration, limited capabilities, or the necessity for re-authentication, which do not align with the purpose of increasing the TTL for improved session longevity.