Uy » Mavzulatshitilgan testlar » Informatika mavzulashtirilgan » 7-sinf Informatika » 7-sinf Informatika №9 1-chorak uchun 7-sinf InformatikaInformatika choraklik 7-sinf Informatika №9 1-chorak uchun InfoMaster Noyabr 3, 2022 86 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 0 12345678910111213141516171819202122232425 7-sinf Informatika №9 1-chorak uchun 9-dars. NAZORAT ISH 1 / 25 1. Axborotlar bilan olib boriladigan faoliyatga ….. deyiladi. Nuqtalar o’rniga to’g’ri javobni tanlang. A) Axborot olami B) Axborot manbai C) Axborot tashuvchi D) Axborotli jarayonlar 2 / 25 2. Quyidagi rasmda sonli axborot to'g'ri ko'rsatilgan javobni tanlang. A) 4 B) 3 C) 2 D) 1 3 / 25 3. Uzlukli axborot yana qanday nomlanadi? A) Analog B) Diskret 4 / 25 4. Quyidagi sonni ixcham ko‘rinishda yozing: 2 ∙ 3³ + 2 ∙ 3¹ + 1 ∙ 3⁰ A) 221₃ B) 2021₃ C) 202₃ D) 2021₁₀ 5 / 25 5. O‘nlik sanoq sistemasida berilgan son 27 ga teng. Shu son boshqa sanoq sistemasida 30 ga teng bo‘lsa, noma’lum sanoq sistemasi asosini aniqlang. A) 7 B) 10 C) 8 D) 9 6 / 25 6. Pozitsiyali sanoq sistemalari to’g’ri ko’rsatilgan javobni toping. A) O‘nlik sanoq sistemasi B) O‘n oltilik sanoq sistemasi C) Ikkilik sanoq sistemasi D) Barcha javoblar to’g’ri 7 / 25 7. O‘tkazishlarni bajaring: 10111100₂ = ?₁₆ A) DC B) AC C) BC D) FC 8 / 25 8. O‘tkazishlarni bajaring:10₁₆ = ?₂ A) 100000 B) 10000 C) 10001 D) 1000 9 / 25 9. O‘tkazishlarni bajaring: 702₈ = ?₁₀ A) 460 B) 450 C) 458 D) 650 10 / 25 10. Ikkilik sanoq sistemasida amalni bajaring: 10001₂+101₂=?₂ A) 10110 B) 10111 C) 10010 D) 10100 11 / 25 11. Ikkilik sanoq sistemasida amalni bajaring: 111100₂ – 1100₂=?₂ A) 101000 B) 111000 C) 111010 D) 110000 12 / 25 12. Ikkilik sanoq sistemasida amalni bajaring: 101₂ ∙ 11₂=?₂ A) 1110 B) 1000 C) 1001 D) 1111 13 / 25 13. 6 Kb = ? bit A) 6 144 B) 49 152 C) 8 192 D) 48 14 / 25 14. Soniyada uzatiladigan bitlar soni nima deb yuritiladi? A) binary rate B) bit range C) bit rate D) binary digit 15 / 25 15. 1 gigabayt (Gb) necha Mb? A) 2²³ B) 2048 C) 2²⁰ D) 1024 16 / 25 16. Qanday kodlash jadvallari mavjud. A) ISO, CP B) UTF-8, ASCII, Unicode C) Barchasi D) Windows, UTF 17 / 25 17. Ikkilikda berilgan kodlarni ASCII jadvali yordamida belgilarga kodlang: 011000010010101101100010 A) B+a B) a+b C) b+a D) A+b 18 / 25 18. Unicode jadvalida belgilar 16 lik sanoq sistemasidagi nechta raqam orqali kodlanadi. A) 8 B) 16 C) 4 D) 2 19 / 25 19. Ikkilik kodlangan quyidagi kod qaysi rang? 111 A) Qizil B) Qirmizi C) Sariq D) Oq 20 / 25 20. Ikkilik kodlangan quyidagi kod qaysi rang? 100 A) Qizil B) Oq C) Sariq D) Qirmizi 21 / 25 21. Ikkilik kodlangan quyidagi kod qaysi rang? 011 A) Yashil B) Ko‘k C) Qora D) Havorang 22 / 25 22. Ovoz balandligi qanday o’lchanadi? A) DDI B) KHz C) minut D) DB 23 / 25 23. Ovozli axborotlarni qaysi axborot turiga mansub? A) Diskret B) Analog 24 / 25 24. Audiofayl yozilish jarayonida kodning uzunligi 32 bitga, bir sekunddagi chastota esa 32 000 Hz ga teng. Audiofaylning davomiyligi 5 minutga teng bo‘lsa, audiofayl hajmini hisoblang. A) 6,6 Mb B) 16,6 Mb C) 36 Mb D) 36,6 Mb 25 / 25 25. O‘lchami 1280 × 720 ga teng, 65 536 ta rang ishtirok etgan videofaylning kadrlar almashish chastotasi 25 Hz ga teng. Agar videofayl davomiyligi 5 minutga teng bo‘lsa, videofayl axborot hajmini aniqlang. A) 2,87 Gb B) 6,87 Gb C) 12,87 Gb D) 1,87 Gb 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
