What is the primary purpose of edge caching in latency-sensitive broadcasts?

• A. To deliver content closer to viewers and reduce latency
• B. To increase central server load
• C. To degrade video quality for bandwidth savings
• D. To complicate content distribution

Answer: (A)

Edge caching places copies of content at servers near viewers so requests can be served locally rather than from a distant origin. In latency-sensitive broadcasts, every moment counts, and serving from the edge dramatically reduces round-trip time, startup delay, and buffering, delivering a near real-time viewing experience. That’s why the primary purpose is to deliver content closer to viewers and reduce latency. The other options describe outcomes that caching aims to avoid or is unrelated to its goal: increasing central server load, degrading video quality, or making distribution more complicated.