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 92 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 0 12345678910111213141516171819202122232425 7-sinf Informatika №9 1-chorak uchun 9-dars. NAZORAT ISH 1 / 25 1. Axborotlani chiqarish qurilmalari to’g’ri ko’rsatilgan javobni tanlang. A) Quloqchin, printer, monitor B) Video proektor, mikrafon, klaviatura C) Skaner, mikrafon, klaviatura D) Skaner, printer, klaviatura 2 / 25 2. Uzluksiz axborot yana qanday nomlanadi? A) Diskret B) Analog 3 / 25 3. Analog qurilmalar to’g’ri ko’rsatilgan javobni belgilang. A) 1 B) 2 4 / 25 4. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D; ushbu raqamlar qanday sanoq sistemasi alifbosi elementlari? A) O’n to’rtlik B) O’n ikkilik C) To’qqizlik D) O’n oltilik 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) 9 B) 8 C) 7 D) 10 6 / 25 6. Quyidagi sonni yoyiq ko‘rinishda yozing: 1110₂ A) 1 ∙2² + 1 ∙2¹ + 0 ∙ 2⁰ B) 1 ∙2³ + 1 ∙2² + 1 ∙2⁰ C) 1 ∙2³ + 1 ∙2² + 1 ∙2¹ D) 1 ∙2³ + 0 ∙2² + 1 ∙2¹ + 0 ∙ 2⁰ 7 / 25 7. O‘tkazishlarni bajaring: 70135₈ = ?₂ A) 111000001011001 B) 110000001011101 C) 111000001111101 D) 111000001011101 8 / 25 8. O‘tkazishlarni bajaring: 10111100₂ = ?₁₆ A) BC B) AC C) FC D) DC 9 / 25 9. O‘tkazishlarni bajaring: 110100001₂ = ?₄ A) 11201 B) 12211 C) 12101 D) 12201 10 / 25 10. Ikkilik sanoq sistemasida amalni bajaring: 111₂+11₂=?₂ A) 1110 B) 1000 C) 1011 D) 1010 11 / 25 11. Ikkilik sanoq sistemasida amalni bajaring: 110₂+101₂=?₂ A) 1111 B) 1001 C) 1010 D) 1011 12 / 25 12. Hisoblang: 1111₂ + 246₈ + 8D₁₆=?₁₆ A) 152 B) E8 C) 142 D) 163 13 / 25 13. 99 bayt = ? bit A) 99 B) 101 376 C) 792 D) 990 14 / 25 14. 1 Kbayt/sek qaysi javobga teng? A) 1024 bit/sek; B) 8 bit/sek C) 1024 Kbit/sek; D) 1024 bayt/sek; 15 / 25 15. Kodlanayotgan belgilar soni 200 ta bo‘lsa necha bit xotira hajmi kerak bo’ladi? A) 8 B) 6 C) 5 D) 7 16 / 25 16. Kodlash tizimlari nomi to’g’ri keltirilgan qatorni aniqlang. A) Windows, UTF, ASCII, Unicode, ISO, CP, Google Securite B) ISO, CP, Windows, UTF, ASCII, Unicode C) ASCII, Unicode, ISO, CP, Windows File, SpinEdit D) ASCII, Unicode, ISO, CP, UTF, Binary Digit 17 / 25 17. ASCII jadvali kodning uzunligi nechaga bitga teng A) 4 B) 256 C) 8 D) 2 18 / 25 18. Qanday kodlash jadvallari mavjud. A) Windows, UTF B) UTF-8, ASCII, Unicode C) Barchasi D) ISO, CP 19 / 25 19. Ikkilik kodlangan quyidagi kod qaysi rang? 011 A) Qora B) Havorang C) Ko‘k D) Yashil 20 / 25 20. Ikkilik kodlangan quyidagi kod qaysi rang? 100 A) Oq B) Qizil C) Sariq D) Qirmizi 21 / 25 21. Rasmni ikkilikda kodlang va axborot hajmini aniqlang: A) 64 bit B) 8 bit C) 28 bit D) 2 bit 22 / 25 22. Ovoz balandligi qanday o’lchanadi? A) minut B) DDI C) DB D) KHz 23 / 25 23. 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) 1,87 Gb B) 2,87 Gb C) 12,87 Gb D) 6,87 Gb 24 / 25 24. 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) 3,64 Mb C) 1,84 Mb D) 1,64 Mb 25 / 25 25. 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 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
