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ms",{"key":157,"text":158},"b","6.5 ms",{"key":160,"text":161},"c","-13 ms",{"key":163,"text":164},"d","41.5 ms","(T2-T1) = 35, (T3-T4) = -48, toplam = -13, ikiye bölünce -6.5 ms çıkar. +6.5 ms işareti ters çeviriyor, -13 ms son bölmeyi atlıyor, 41.5 ms ise iki terimin işaretli toplamı yerine mutlak değerlerini topluyor.",{"id":167,"topic":9,"difficulty":150,"body":168,"options":169,"correct_key":157,"explanation":178},"01a039c8-9ef7-7752-b59a-d6d7fa0c07c6","Aynı theta = ((T2-T1)+(T3-T4))\u002F2 formülünü T1=500, T2=460, T3=470, T4=530 (ms) ile kullanırsan theta kaçtır?",[170,172,174,176],{"key":154,"text":171},"-100 ms",{"key":157,"text":173},"-50 ms",{"key":160,"text":175},"50 ms",{"key":163,"text":177},"-40 ms","(T2-T1) = -40, (T3-T4) = -60, toplam = -100, ikiye bölünce -50 ms çıkar. -100 ms bölmeyi atlıyor, 50 ms işareti ters çeviriyor, -40 ms ise yalnızca ilk terimi kullanıp (T3-T4)'ü görmezden geliyor.",{"id":180,"topic":9,"difficulty":181,"body":182,"options":183,"correct_key":160,"explanation":192},"01a039c8-9ef8-73ad-b495-e2a457f3c16b",2,"1. soruda hesaplanan offset theta = -6.5 ms idi; theta = T(B) - T(A) olarak tanımlanır, A istemci (başlatan), B sunucu (yanıtlayan). Bu negatif değer iki saat hakkında ne söyler?",[184,186,188,190],{"key":154,"text":185},"Sunucunun saati istemcinin saatinden yaklaşık 6.5 ms ileride görünüyor.",{"key":157,"text":187},"Round-trip gecikme negatif çıkmış, ölçüm geçersizdir.",{"key":160,"text":189},"Sunucunun saati istemcinin saatinden yaklaşık 6.5 ms geride görünüyor.",{"key":163,"text":191},"İstemci paketi olması gerekenden 6.5 ms geç göndermiştir.","theta = T(B) - T(A) tam olarak B (sunucu) aynı anda A'dan (istemci) daha erken bir zaman okuduğunda negatif olur, yani sunucu saati istemci saatinin 6.5 ms gerisindedir. Negatif theta, delta (round-trip gecikme) veya gönderim zamanlaması hakkında bir şey söylemez.",{"id":194,"topic":9,"difficulty":150,"body":195,"options":196,"correct_key":163,"explanation":205},"01a039c8-9ef9-713f-a798-39fb3af1a6c6","T1=2000, T2=2035, T3=2042, T4=2090 (ms) ve delta = (T4-T1) - (T3-T2) formülüyle delta kaçtır?",[197,199,201,203],{"key":154,"text":198},"90 ms",{"key":157,"text":200},"97 ms",{"key":160,"text":202},"7 ms",{"key":163,"text":204},"83 ms","(T4-T1) = 90, (T3-T2) = 7, dolayısıyla delta = 90 - 7 = 83 ms. 90 ms ikinci terimi çıkarmayı unutuyor, 97 ms çıkarmak yerine topluyor, 7 ms ise yalnızca ikinci terimi bildiriyor.",{"id":207,"topic":9,"difficulty":181,"body":208,"options":209,"correct_key":157,"explanation":218},"01a039c8-9ef9-7c3f-b8c9-43a8a3df63b2","delta = (T4-T1) - (T3-T2) formülünde çıkarılan (T3-T2) terimi neyi temsil eder ve neden çıkarılır?",[210,212,214,216],{"key":154,"text":211},"İstemcinin son senkronizasyondan bu yana biriken saat kaymasını temsil eder; istemci saatini düzeltmek için çıkarılır.",{"key":157,"text":213},"Sunucunun paketi alıp yanıtı göndermesi arasında geçen kendi işleme süresini temsil eder; ağ gecikmesini yalıtmak için çıkarılır.",{"key":160,"text":215},"Sunucudan istemciye tek yön ağ gecikmesini temsil eder; iki kez sayılmasın diye çıkarılır.",{"key":163,"text":217},"Paketin veri baytlarının iletim süresini temsil eder; paket boyutunu göz ardı etmek için çıkarılır.","(T3-T2), sunucunun yanıt vermeden önce paketi elinde tuttuğu süredir. Bunu round-trip aralığından (T4-T1) çıkarmak, geriye yalnızca ağda geçen süreyi bırakır; böylece sunucu işleme gecikmesi ölçülen ağ gecikmesini şişirmez.",{"id":220,"topic":9,"difficulty":181,"body":221,"options":222,"correct_key":154,"explanation":231},"01a039c8-9efa-76db-930b-43bb17f96e28","Ölçülen round-trip gecikme delta 50 ms çıkıyor. Her tek yön bacağın 25 ms sürdüğünü varsaymak her zaman güvenli midir?",[223,225,227,229],{"key":154,"text":224},"Hayır — yol asimetrikse iki bacak birbirinden çok farklı olabilir.",{"key":157,"text":226},"Evet — delta formülü zaten simetrik bir yolu garanti eder.",{"key":160,"text":228},"Hayır — delta her zaman gerçek tek yön gecikmesinin tam dört katıdır.",{"key":163,"text":230},"Evet, ama yalnızca bağlantı bir röle sunucudan geçiyorsa.","delta yalnızca round-trip'i, yani T(A->B->A)'yı ölçer. Bu toplamın gidiş ve dönüş bacakları arasında nasıl bölündüğü hakkında hiçbir bilgi taşımaz; ikiye bölmek ölçülmüş bir gerçek değil, bir 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