Refer to the exhibit. A host connected to R3 must connect with a server on R1 that provides critical, time-sensitive data. Traffic between the host and server must always be given bandwidth to travers

Policing rate-limits traffic by dropping packets that exceed a specified threshold, which controls overall traffic but does not guarantee priority or bandwidth to specific critical traffic over other traffic.

Traffic shaping buffers and delays traffic that exceeds a specified rate, smoothing out bursts but not providing strict preferential forwarding for critical traffic over other congested traffic.

Implementing strict priority ensures that the critical server traffic is placed in a dedicated high-priority queue and is transmitted before any other traffic, as long as there is data in that queue. This guarantees that the critical traffic receives its required bandwidth even during congestion, aligning with the requirement for it to always be given bandwidth while other traffic may be dropped.

FIFO (First-In, First-Out) queuing processes packets in the order they arrive, providing no preferential treatment or guaranteed bandwidth for critical server traffic over other traffic.