In VoIP, firewalls are a problem because they tend to ________

When an incident should be closed?

A. When the user confirms that the service has been restored B. When the technical staff members are confident that it will not recur C. When the desktop support staff members say that the incident is over D. When the target resolution time is reached

The MTBF distributions of products, machines, or processes that have "settled in," or gone beyond the infant mortality phase, often follow the normal distribution

Indicate whether the statement is true or false