Telekommunikatsiya tarmoqlarining ikkita alohida sinfi mavjud: umumiy maqsadli va ixtisoslashtirilgan. Xususiyatlari universal tizimlar keng qamrovi bilan yuqori narx. Ixtisoslashgan tizimlarda barcha mumkin bo'lgan ma'lumotlar yo'q, shuning uchun ularning narxi past bo'ladi. Reklama risolalariga kiritilgan hujjatlar soni har doim ham sotib olingan tizimning to'liqligi va afzalliklarini ko'rsatmasligini tushunish muhimdir. Ko'pincha to'liq matnlar hujjatlar qisqa kutubxona kartalari bilan almashtirildi. Agar axborot-telekommunikatsiya tarmog'i yaratilayotgan bo'lsa, bu ma'lum mablag'larni jalb qilishni taqozo etadi. Shu bilan birga, quyidagi mahsulotlarni etkazib beruvchi kompaniya tanlanadi: to'lovlar uchun eng qulay shartlar, arzon narxlar, yangilash texnologiyasi, kafolatli xizmat ko'rsatish tizimi, sotish imkoniyatini ko'rsatadigan hujjatlar.
TARMOQ PROTOKOLLARI STEKINING KO'P DARAJALI MODELI Ma'lumotlarni uzatishni tashkil etish Ko'p bosqichli model tizim A jarayon tizimi B jarayon darajasi N + 1 daraja N ma'lumotlarni uzatish vositasi Ma'lumotlarni uzatishni tashkil etish
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