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 34 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 10 12345678910111213141516171819202122232425 7-sinf Informatika №9 1-chorak uchun 9-dars. NAZORAT ISH 1 / 25 1. Uzluksiz axborot yana qanday nomlanadi? A) Analog B) Diskret 2 / 25 2. Uzlukli axborot yana qanday nomlanadi? A) Analog B) Raqamli 3 / 25 3. Axborotlani chiqarish qurilmalari to’g’ri ko’rsatilgan javobni tanlang. A) Skaner, mikrafon, klaviatura B) Quloqchin, printer, monitor C) Skaner, printer, klaviatura D) Video proektor, mikrafon, klaviatura 4 / 25 4. O‘nlik sanoq sistemasidagi 4 xonali eng kichik sonni toping. A) 9999 B) 1000 C) 1111 D) 9000 5 / 25 5. Pozitsiyali sanoq sistemalari to’g’ri ko’rsatilgan javobni toping. A) Barcha javoblar to’g’ri B) Ikkilik sanoq sistemasi C) O‘nlik sanoq sistemasi D) O‘n oltilik sanoq sistemasi 6 / 25 6. Quyidagi sonni yoyiq ko‘rinishda yozing: 7071₈ A) 7 ∙8³ + 7 ∙8² + 0 ∙8¹ + 1 ∙ 8⁰ B) 7 ∙8² + 7 ∙8¹ + 1 ∙ 8⁰ C) 7 ∙8³ + 7 ∙8² + 0 ∙ 8⁰ D) 7 ∙8³ + 7 ∙8¹ + 1 ∙ 8⁰ 7 / 25 7. O‘tkazishlarni bajaring: 110100001₂ = ?₄ A) 12201 B) 12101 C) 11201 D) 12211 8 / 25 8. O‘tkazishlarni bajaring: 11100111₂ = ?₈ A) 345 B) 447 C) 357 D) 347 9 / 25 9. O‘tkazishlarni bajaring:10₁₆ = ?₂ A) 10001 B) 1000 C) 10000 D) 100000 10 / 25 10. Hisoblang: 578₁₂ ∙ 11₂ – 354₇=?₁₀ A) 2260 B) 2250 C) 1250 D) 2650 11 / 25 11. Ikkilik sanoq sistemasida amalni bajaring: 110111₂ – 1100₂=?₂ A) 101010 B) 100011 C) 111011 D) 101011 12 / 25 12. Amalni bajaring: 101₂ ∙ 10₂=?₄ A) 23 B) 10 C) 1010 D) 22 13 / 25 13. 1 bit/sek qaysi javobga teng? A) 1 bps B) 1 Kbayt/sek C) 1 Kbit/sek D) 1 bayt/sek 14 / 25 14. 1 Kbayt/sek qaysi javobga teng? A) 1024 bayt/sek; B) 1024 Kbit/sek; C) 1024 bit/sek; D) 8 bit/sek 15 / 25 15. 6 Kb = ? bit A) 49 152 B) 8 192 C) 6 144 D) 48 16 / 25 16. Qanday kodlash jadvallari mavjud. A) ISO, CP B) Barchasi C) UTF-8, ASCII, Unicode D) Windows, UTF 17 / 25 17. Unicode jadvali kodning uzunligi nechaga bitga teng A) 8 B) 16 C) 256 D) 4 18 / 25 18. Ikkilikda berilgan kodlarni ASCII jadvali yordamida belgilarga kodlang: 011000010010101101100010 A) a+b B) b+a C) B+a D) A+b 19 / 25 19. Ikkilik kodlangan qora rang kodini toping A) 100 B) 000 C) 010 D) 001 20 / 25 20. Ikkilik kodlangan quyidagi kod qaysi rang? 111 A) Sariq B) Qirmizi C) Qizil D) Oq 21 / 25 21. Kompyuter grafik axborotlar xotirada qanday ko’rinishda saqlaydi? A) rastrli B) rastrli yoki vektorli C) vektorli D) rastrli yoki froktal 22 / 25 22. 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) 3,56 Gb C) 4,66 Gb D) 3,16 Gb 23 / 25 23. ADC qurilmasining vazifalari nimalardan iborat? A) raqamli axborotlarni analog signallarga o‘tkazuvchi qurilma B) analog signallarni raqamli ko‘rinishga o‘tkazuvchi qurilma 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) 1,84 Mb B) 2,64 Mb C) 3,64 Mb D) 1,64 Mb 25 / 25 25. Ovoz balandligi qanday o’lchanadi? A) DB B) minut C) KHz D) DDI 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
