A large service provider offers VoIP and Video services to business customers. Which three areas should the service provider monitor related to these services? (Choose three.)

Bandwidth utilization is used for capacity planning and trend analysis, but it is not a direct real-time quality metric that reflects user experience during active voice or video calls.

Service response time measures request-reply latency for transactional applications and is not applicable to monitoring continuous real-time media streams such as VoIP or video.

Packet loss degrades voice and video quality directly - even 1-2% loss causes perceptible audio gaps or video artifacts in real-time streams. Monitoring packet loss allows service providers to detect congestion or network failures that impair active media sessions.

Jitter is the variation in inter-packet arrival delay, and excessive jitter causes playout buffer overruns or underruns that result in choppy audio and stuttering video. ITU-T G.114 recommends keeping jitter below 30ms for VoIP to maintain acceptable quality.

End-to-end latency directly affects VoIP conversational quality - ITU-T G.114 specifies a 150ms one-way delay budget for acceptable voice quality. High latency also causes audio-to-video synchronization issues in video conferencing applications.

Availability tracks whether a service is reachable or not, which is a binary operational metric rather than a quality-of-experience indicator for in-progress media sessions.