A blood-bank App Service site JIT-compiles on first request, so a cold swap still caused a rider-visible pause. Which swap technique should the developer use so the destination worker warms before cutover?
Select an answer to reveal the explanation.
Short Explanation
Cold JIT is like opening a closed shop—first customer waits. Swap with preview (and app init) warms the destination worker before the final flip so the blood-bank site does not hitch. Availability tests watch health; they do not warm the swap.
Full Explanation
Swap with preview stages the swap and allows warm-up or application initialization against the destination before completing cutover, reducing first-request latency after JIT or lazy loading. Application Insights availability tests monitor endpoints but are Domain 4 monitoring, not the slot warm-up mechanism. TLS and HTTPS-only settings are unrelated to swap warm-up.