Which critical Avaya Aura Communication Manager (CM) information can be obtained from the ECS log located in the /var/log/ecs directory? (Choose all that apply.)

What are the three types of certificates used in the Avaya Aura server?

Immediately after registration, how does an Avaya SIP telephone learn if any of its Call Forward features are active right now?

During installation, the Trust Management Service establishes trust between different entities through the exchange of security certificates. Which three entities does the Trust Management Service establish trust between?

A customer called Avaya Support stating that shortly after some maintenance work was done, they cannot make or receive calls.
Which command in Avaya Aura Communication Manager (CM) can the administrator execute, to determine if the links to the H.248 Gateways are up?