You have a Skype for Business infrastructure that contains four servers. The servers are configured as
shown in the following table.

The infrastructure contains a hardware load balancer named HLB1. The company has an IP-PBX system.
The IP-PBX supports media bypass. The IP-PBX has a Session Initiation Protocol (SIP) trunk configured.
Each user has a desktop phone that connects to the IP-PBX. Each computer has a Skype for Business-
qualified headset.
The company plans to implement Enterprise Voice and to use existing SIP trunks.
You need to recommend a Mediation Server deployment that meets the following requirements:
Remote users must be able to place calls to any desk phone even if a single server fails.

The degradation of call quality must be minimized during peak usage hours.

What are two possible ways to achieve the goal? Each correct answer presents a complete solution.