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7-sinf Informatika №5

Oktabr 21, 2022

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7-sinf Informatika №5

7-sinf Informatika va axborot texnologiyalari fanidan mavzulashtirilgan testlar

5-dars. AXBOROT HAJMINI O‘LCHASH

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1. Kompyuterda axborotni qanday tasvirlash shakllari bor?

A) Matnli, sonli, grafik, ovozli (audio), video

B) Matnli, sonli, grafik, rangli, video

C) Matnli, qiziqarli, rangli, video

D) Qiqizarli, sonli, grafik, ovozli (audio), video

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2. Sakkizlik sanoq sistemasining raqamlarni toping.

A) 0, 1, 2, 3, 4

B) 0, 1, 2, 3, 4, 5, 6, 7, 8

C) 0, 1, 2, 3, 4, 5, 6, 7

D) 0, 1, 2, 3, 4, 5

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3. O‘tkazishlarni bajaring: 6574₉ = ?₁₃

A) A28A

B) 38A

C) 228A

D) 2E8A

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4. Ikkilik sanoq sistemasida amalni bajaring: 110111₂ – 1100₂=?₂

A) 101011

B) 111011

C) 100011

D) 101010

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5. 1 kilobayt (Kb) necha bayt?

A) 2²³

B) 2²⁰

C) 1024

D) 2048

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6. 1 Kbit/sek qaysi javobga teng?

A) 8 bit/sek

B) 1 bayt/sek

C) 1024 bayt/sek;

D) 1024 bit/sek;

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7. Kodlanayotgan belgilar soni 758 ta bo‘lsa necha bit xotira hajmi kerak bo’ladi?

A) 9

B) 20

C) 10

D) 11

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8. 6 Kb = ? bit

A) 8 192

B) 6 144

C) 48

D) 49 152

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9. 1 Kbayt/sek qaysi javobga teng?

A) 1024 Kbit/sek;

B) 1024 bit/sek;

C) 1024 bayt/sek;

D) 8 bit/sek

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10. 2¹⁰ bayt…

A) 1024 Kb

B) 1 Gb

C) 10 Kb

D) 1 Kb

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11. 2 Kb necha bayt?

A) 4096

B) 2048

C) 1024

D) 512

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12. Yorug‘lik taxtasiga qizil, yashil va ko‘k rangda yonuvchi lampochkalar o‘rnatilgan. 5 ta lampochka yordamida necha xil signal uzatish mumkinligini aniqlang.

A) 243

B) 32

C) 27

D) 81

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13. 64 Gb = ? bayt;

A) 2¹⁶

B) 2²⁶

C) 2³⁶

D) 2²⁰

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14. 128 Mb = ? Gb

A) 7

B) 1-Aug

C) 0.5

D) 128∙2¹⁰

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15. Soniyada uzatiladigan bitlar soni nima deb yuritiladi?

A) binary rate

B) binary digit

C) bit rate

D) bit range

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16. Soniyada uzatiladigan bitlar soni odatda qanday belgilanadi?

A) To’g’ri javob yo’q

B) bit (binary digit)

C) bts (bit digit second)

D) bps (bit per second)

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17. 1 gigabayt (Gb) necha kilobayt?

A) 1024 bit

B) 2²³ Kb

C) 2²⁰ Kb

D) 2¹⁰ Kb

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18. 1 bps qaysi javobga teng?

A) 1 Kbayt/sek

B) 1 bit/sek;

C) 1 Kbit/sek

D) 1 bayt/sek

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19. 1 bayt necha bit?

A) 1 bit;

B) 8 bit;

C) 1024 bit;

D) 10 bit;

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20. Quyida berilgan matnni "Блокнот“ dasturida yozib saqlandi. Axborot uzatish tezligi 12 Mbit/sekund bo‘lsa, fayl uzatilgan vaqtni aniqlang. “Kompyuterlar raqamli axborotlarni qayta ishlaydi” Qo’shtirnoqni hisobga olmang.

A) 16

B) 8

C) 32

D) 128

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21. 64 Gb xotira hajmiga ega USB-flesh xotira qurilmasida nechta 1024 bayt hajmga ega bo‘lgan matnli faylni saqlash mumkin?

A) 2¹⁰

B) 2²⁰

C) 2²⁶ ta

D) 2¹¹

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22. 1 gigabayt (Gb) necha Mb?

A) 2²³

B) 1024

C) 2048

D) 2²⁰

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23. 512 bayt = ? Kb;

A) 1

B) 2

C) 1024

D) 0.5

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24. 99 bayt = ? bit

A) 101 376

B) 99

C) 792

D) 990

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25. Bit-bu?

A) Axborotning eng kichik o‘lchov birligi.

B) Axborotning eng katta o‘lchov birligi.

C) Axborot uzatish tezligining eng kichik o‘lchov birligi.

D) Fayldagi axborotlar hajmi yoki xotirada talab etilayotgan joy o‘lchami.

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