Question: What is a crucial prerequisite for renewing a certificate for a Network Entity (NE), Security Edge Gateway (SEG), or Transport Layer Security (TLS) entity in a telecom network?
Option 1: Completion of a security audit on all network entities
Option 2: Implementation of a new Certificate Management Protocol version
Option 3: Temporary suspension of network services to ensure security
Option 4: Having the new certificate in place before the old one expires
Explanation: In telecom networks, ensuring continuity and preventing security vulnerabilities is paramount. Renewing certificates for critical components like NEs, SEGs, and TLS entities requires careful planning. Having the new certificate ready and implemented before the old one expires maintains uninterrupted security and network integrity, preventing potential security gaps from expired certificates.