Answer:
Hot Standby mode failover partner
Explanation:
The configuration you should use as an administrator is the Hot Standby mode failover partner.
Under the Hot standby mode, the partner server is in a standby role, in order to lease IP addresses to DHCP clients if only the active isn't available.
Hence, when the active server is unavailable, the failover partner will be used temporarily.
Answer: e. freemium approach
Explanation: As Iver Audio can be completely functional in its basic version, most users won't need to use the extra features. But for someone that will need them, the $19.99 upgrade will worth it because the extra features can be a lot useful. Furthermore, anyone using the "free" version can switch to the "premium" version after liking the program and its features. But of course, that decision it's up to the user.