In conducting security testing on the Alexander Rocco network, you have found that the company configured one of its Windows Server 2019 computers as an enterprise root CA server. You have also determined that the server is using SHA-256 as the hashing algorithm for certificate signing. Which of the following is the most likely reason for the company to use SHA-256 instead of SHA-1 for certificate signing?
1) SHA-256 provides stronger security and is recommended for new certificate deployments.
2) SHA-256 is faster and more efficient than SHA-1 for certificate signing.
3) SHA-256 is backward compatible with older systems that only support SHA-1.
4) SHA-256 is required by industry regulations for enterprise root CA servers.