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 59 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 2 0 12345678910111213141516171819202122232425 7-sinf Informatika №9 1-chorak uchun 9-dars. NAZORAT ISH 1 / 25 1. Quyidagi rasmda Videoaxborot axborot to'g'ri ko'rsatilgan javobni tanlang. A) 4 B) 3 C) 2 D) 5 2 / 25 2. Analog qurilmalar to’g’ri ko’rsatilgan javobni belgilang. A) 2 B) 1 3 / 25 3. Uzluksiz axborot yana qanday nomlanadi? A) Diskret B) Analog 4 / 25 4. 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) 10 D) 7 5 / 25 5. Ikkilik sanoq sistemasining raqamlarni toping. A) 0, 1, 2, 3, 4 B) 0, 1, 2, 3, 4, 5 C) 0, 1 D) 0, 1, 2, 3 6 / 25 6. Quyidagi sonni yoyiq ko‘rinishda yozing: 3641₁₀ A) 3 ∙10² + 4 ∙10¹ + 1 ∙ 10⁰ B) 6 ∙10³ + 3 ∙10² + 4 ∙10¹ + 1 ∙ 10⁰ C) 3 ∙10³ + 6 ∙10² + 4 ∙10¹ + 1 ∙ 10⁰ D) 3 ∙10⁴ + 6 ∙10³ + 4 ∙10² + 1 ∙ 10¹ 7 / 25 7. O‘tkazishlarni bajaring: 2031₄ = ? ₂ A) 11001101 B) 10001001 C) 10001111 D) 10001101 8 / 25 8. Diada kodlash usuli sonni … o‘tkazishda qo‘llaniladi. Nuqtalar o’rniga to’g’ri javobni tanlang. A) Ikkilik sanoq sistemasidan to‘rtlik sanoq sistemasiga va aksincha, to‘rtlik sanoq sistemasidan ikkilik sanoq sistemasiga B) Ikkilik sanoq sistemasidan o‘n oltilik sanoq sistemasiga va aksincha, o‘n oltilik sanoq sistemasidan ikkilik sanoq sistemasiga C) Ikkilik sanoq sistemasidagi sonni sakkizlik sanoq sistemasidagi songa va aksincha, sakkizlik sanoq sistemasidan ikkilik sanoq sistemasiga D) O’nlik sanoq sistemasidan o‘n oltilik sanoq sistemasiga va aksincha, o‘n oltilik sanoq sistemasidan o’nlik sanoq sistemasiga 9 / 25 9. O‘tkazishlarni bajaring: 11100111₂ = ?₈ A) 347 B) 345 C) 447 D) 357 10 / 25 10. Ikkilik sanoq sistemasida amalni bajaring: 10001₂+101₂=?₂ A) 10111 B) 10100 C) 10110 D) 10010 11 / 25 11. Hisoblang: 1111₂ + 246₈ + 8D₁₆=?₁₆ A) 152 B) 163 C) E8 D) 142 12 / 25 12. Ikkilik sanoq sistemasida amalni bajaring: 111101₂+11011₂=?₂ A) 1011001 B) 1011100 C) 1010000 D) 1011000 13 / 25 13. 64 Gb = ? bayt; A) 2¹⁶ B) 2²⁶ C) 2³⁶ D) 2²⁰ 14 / 25 14. Soniyada uzatiladigan bitlar soni nima deb yuritiladi? A) bit range B) binary digit C) binary rate D) bit rate 15 / 25 15. 26 Gb = ? Mb A) 26∙2¹³ B) 26∙2¹⁰ C) 2600 D) 2∙2²⁰ 16 / 25 16. ASCII jadvalida kodlangan matnli faylda 16 ta sahifa bo‘lib, har bir sahifa 30 ta satrdan, har bir satr esa 64 ta belgidan iborat bo‘lsa, kitobning axborot hajmini hisoblang. A) 31 Kb B) 30 Kb C) 32 Kb D) 28 Kb 17 / 25 17. Unicode jadvali kodning uzunligi nechaga bitga teng A) 256 B) 4 C) 16 D) 8 18 / 25 18. ASCII kenkaytmasini toping. A) American Stand Code for Information Interchange B) American Standard Config for Information Interchange C) Amsterdam Standard Code for Interchange Information D) American Standard Code for Information Interchange 19 / 25 19. O‘lchamlari 1280 x 720 ga teng bo‘lgan tasvir 16 777 216 xil rang bilan ifodalangan. Tasvirning axborot hajmini aniqlang. Axborot uzatish tezligi 30 Mbit/sekund bo‘lsa, tasvir qancha vaqt davomida uzatilishini aniqlang. A) 1 sek B) 2,18 sek C) 1,28 sek D) 3 sek 20 / 25 20. Ikkilik kodlangan quyidagi kod qaysi rang? 111 A) Sariq B) Qirmizi C) Qizil D) Oq 21 / 25 21. Ikkilik kodlangan havorang rang kodini toping A) 010 B) 001 C) 100 D) 011 22 / 25 22. Ovozli axborotlarni qaysi axborot turiga mansub? A) Analog B) Diskret 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) 12,87 Gb B) 6,87 Gb C) 2,87 Gb D) 1,87 Gb 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) 36 Mb B) 36,6 Mb C) 6,6 Mb D) 16,6 Mb 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) 3,64 Mb C) 1,84 Mb D) 1,64 Mb 0% Author: InfoMaster Foydali bo'lsa mamnunmiz
