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 37 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 10 12345678910111213141516171819202122232425 7-sinf Informatika №9 1-chorak uchun 9-dars. NAZORAT ISH 1 / 25 1. Quyidagi rasmda Audioaxborot to'g'ri ko'rsatilgan javobni tanlang. A) 4 B) 2 C) 3 D) 5 2 / 25 2. Quyidagi rasmda sonli axborot to'g'ri ko'rsatilgan javobni tanlang. A) 1 B) 4 C) 3 D) 2 3 / 25 3. Quyidagi rasmda rasmli axborot to'g'ri ko'rsatilgan javobni tanlang. A) 4 B) 3 C) 5 D) 1 4 / 25 4. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; ushbu raqamlar qanday sanoq sistemasi alifbosi elementlari? A) Ikkilik B) To’qqizlik C) O’nlik D) Beshlik 5 / 25 5. Sonlarni ixcham (standart, oddiy) o‘rinishda yozilgan javobni toping. A) 5 ∙10² + 8 ∙ 10¹ + 6 ∙ 10⁰ B) 586₁₀ 6 / 25 6. To‘rtlik sanoq sistemasining raqamlarni toping. A) 0, 1, 2, 3, 4 B) 0, 1 C) 0, 1, 2, 3 D) 0, 1, 2, 3, 4, 5 7 / 25 7. O‘tkazishlarni bajaring: 110100001₂ = ?₄ A) 11201 B) 12211 C) 12201 D) 12101 8 / 25 8. O‘tkazishlarni bajaring: 2375₈ = ? ₁₆ A) 4DD B) 4ED C) 3AD D) 4FD 9 / 25 9. O‘tkazishlarni bajaring: 70135₈ = ?₂ A) 111000001011001 B) 110000001011101 C) 111000001111101 D) 111000001011101 10 / 25 10. Ikkilik sanoq sistemasida amalni bajaring: 1111₂ – 100₂=?₂ A) 1010 B) 1001 C) 1011 D) 1111 11 / 25 11. Ikkilik sanoq sistemasida amalni bajaring: 11001₂+1101₂=?₂ A) 111100 B) 101110 C) 100110 D) 100111 12 / 25 12. Ikkilik sanoq sistemasida amalni bajaring: 1101₂ ∙ 111₂-10001₂=?₈ A) 112 B) 222 C) 132 D) 122 13 / 25 13. Kodlanayotgan belgilar soni 39 ta bo‘lsa necha bit xotira hajmi kerak bo’ladi? A) 6 B) 4 C) 7 D) 5 14 / 25 14. 1 Mbit/sek qaysi javobga teng? A) 1024 Kbit/sek; B) 1024 bit/sek; C) 1024 bayt/sek; D) 8 bit/sek 15 / 25 15. 1 bayt/sek qaysi javobga teng? A) 8 bit/sek B) 1024 Kbit/sek; C) 1024 bit/sek; D) 1 bps 16 / 25 16. Qanday kodlash jadvallari mavjud. A) Barchasi B) Windows, UTF C) UTF-8, ASCII, Unicode D) ISO, CP 17 / 25 17. Unicode –bu? A) ayrim murakkab belgilarni kodlash tizimi B) xalqaro kodlash jadvali. C) yozuv tillarining deyarli barcha belgilarini kodlash standarti. D) xborot almashish uchun Amerika standart kodi 18 / 25 18. Unicode jadvali kodning uzunligi nechaga bitga teng A) 4 B) 8 C) 256 D) 16 19 / 25 19. Ikkilik kodlangan sariq rang kodini toping A) 100 B) 110 C) 001 D) 010 20 / 25 20. Ikkilik kodlangan quyidagi kod qaysi rang? 011 A) Qora B) Havorang C) Ko‘k D) Yashil 21 / 25 21. Odatda, 1 dyuym uchun qancha piksel olinadi? A) 150–350 B) 250–850 C) 1000–1500 D) 320–550 22 / 25 22. 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) 12,87 Gb B) 6,87 Gb C) 1,87 Gb D) 2,87 Gb 23 / 25 23. O‘lchamlari 768 × 484 ga teng, 1024 ta rang ishtirok etgan videofaylning kadrlar almashish chastotasi 30 Hz ga teng. Agar videofaylning davomiyligi 2 daqiqaga teng bo‘lsa, videofayl axborot hajmini aniqlang A) 1,56 Gb B) 3,16 Gb C) 4,66 Gb D) 3,56 Gb 24 / 25 24. DAC qurilmasining vazifalari nimalardan iborat? A) analog signallarni raqamli ko‘rinishga o‘tkazuvchi qurilma B) raqamli axborotlarni analog signallarga o‘tkazuvchi qurilma 25 / 25 25. Audiofayl yozilish jarayonida kodning uzunligi 16 bitga, bir sekunddagi chastota 48 000 Hz ga teng. Audiofaylning davomiyligi 3 minutga teng bo‘lsa, uning hajmini hisoblang. A) 2,64 Mb B) 1,64 Mb C) 3,64 Mb D) 1,84 Mb 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
