Final answer:
The default CA certificate expiry date for a CA server installed on January 1, 2014, would be January 1, 2019, unless configured otherwise.
Step-by-step explanation:
When a Certification Authority (CA) server is installed, the default validity period for its root certificate is typically 5 years from the installation date. However, this can vary based on the software and configurations used
If a CA server was installed on January 1, 2014, by default, without any additional configuration changes, the CA certificate would likely expire on January 1, 2019. Therefore, the correct answer here would be A) January 1, 2019.