Test on the topic “Measurement and coding of information”
- What is the maximum integer that can be written in three digits using the binary number system:
3;
- 7;
- 2;
- 8.
The unit of measurement for the amount of information is taken to be: 1 bit;
1 byte; 1 baud; 1 bar. Specify the correct order of increasing units of measurement of the amount of information: byte, kilobyte, megabyte, gigabyte;
bit, byte, gigabyte, kilobyte; kilobyte, gigabyte, megabyte, byte; byte, megabyte, kilobyte, gigabyte. The largest natural number encoded in 8 bits: 127;
255; 256; 512; 99999999 Number of bytes required to write the number 282: 5;
10; 11; 82; 256 Number of bytes required to write the number 244: 5;
6; 11; 44; 88. Number of bytes required to write the number 814: 6;
10; 42; 112; 192 To store an area of the monitor screen measuring 256x128 pixels, 32 KB of RAM are allocated. To color the dots, the maximum permissible use of colors is: 16;
4; 512; 256; 218 If 64 KB of RAM are allocated to store an area of the monitor screen measuring 512x256 pixels, then the maximum number of colors that can be used to color the pixels is: 8;
4; 256; 16; 2 The capacity of one conventional printed sheet is approximately 32 KB (1 character occupies 8 bits), the printing speed is 64 characters per second. Without taking into account changing paper, printing the text of one newspaper (2 standard sheets) on a dot matrix printer will take minutes (round the answer to a whole number): 256;
9; 17; 12; 1024 If the capacity of one conventional printed sheet is approximately 96 KB, and 1 character occupies 8 bits, then to print the text of one newspaper (4 conventional sheets) on a laser printer (printing speed - 512 characters per second), without taking into account changing paper, you will need minutes: (answer rounded to the nearest whole number) 13;
15; 17; 19; 21. If dossiers on criminals occupy 45 megabytes and each of them has a volume of 12 pages (48 lines of 64 characters each, 1 character occupies 8 bits), then the number of dossiers is equal to: 1280;
3840; 1250; 1560; 1024 In five kilobytes: 5000 bytes;
5120 bytes; 500 bytes; 5000 bits; 5120 bits The number of numbers that can be encoded with zeros and ones in 10 positions is: 1000;
1024; 10; 256; 512 If the test variant has an average volume of 20 kilobytes (each test page has 40 lines of 64 characters each, 1 character occupies 8 bits), then the number of pages in the test is 10;
16; 8; 4; 12 Employee information is stored as a string of 2048 characters. Information about all 8192 employees can be placed on a minimum number of 1.2M floppy disks, equal to: 14;
12; 10; 8; 16 If the information capacity of a human egg is approximately 233 bits, then the minimum number of hard drives (20 MB each) on which the genetic information of one person can be stored is: 2;
20; 33; 52; 51 The maximum number of book pages (32 lines of 64 characters, 1 character occupies 8 bits) that will fit in a 640 KB file: 320;
640; 160; 540; 1280. The largest natural number encoded in 16 bits: 255;
256; 32768; 65535; 99999999 If the screen area has dimensions of 512x128 pixels and each pixel can have one of 256 shades, then the minimum amount of memory (KB) required to store this area is 32;
64; 74; 128; 256. If the screen area has dimensions of 256x256 pixels and each pixel can have one of 256 shades, then the minimum amount of memory (KB) required to store this area is 32;
64; 74; 96; 144 Number of bytes required to write the 84*48 expression: 3;
4; 8; 12; 16 The average reading speed of students in grades 9-11 is 160 words per minute (one word on average is 6 characters). In four hours of continuous reading, the student will have time to process (KB): 9;
25; 225; 256; 4096. To write the expression VELE, VIDE, VICI, the following bit is required: 14;
16; 72; 88; 128 How many signed integers can be written into 1 byte: 1024;
256; 255; 127; 128 The largest integer when representing signed numbers, encoded in 1 byte: 128;
256; 127; 255; 510 The number of distinct characters encoded by bytes in the message 1110010100111100011111011110010101111101 is: 3;
4; 5; 1; 2. The number of distinct characters encoded in nibbles in the message 10111000101110001001 is 2;
4; 5; 1; 3. The number of pairs of identical characters encoded in nibbles in the message 101110011011100010011100 is 4;
2; 5; 3; 6. The number of non-repeating characters encoded in nibbles in message 111010001011100010011110 is 4;
2; 5; 6; 3. The amount of text information in a message on 40 pages (40 lines per page and 80 characters per line) is equal to 1 MB;
120 KB; 12 KB; 125 KB; 0.1 MB The maximum number of books (each 200 pages long, 60 lines per page, 80 characters per line) fully contained on a 600 MB laser disk is 655;
6005; 63; 10; 6522 In the children's game “Guess the Number,” the first participant guessed an integer in the range from 1 to 8. The second participant asks the questions: “Is the guessed number greater than the number _?” What is the maximum number of questions with the correct strategy (the interval of numbers in each question is divided in half) should the second participant ask in order to guess the number? 1
2 3 4 What is 1 byte equal to? 10 bits
10 KB 8 bit 1 baud What is 1 KB equal to? 1000 bits
1000 bytes 1024 bit 1024 bytes What is 1 MB equal to... 1,000,000 bits
1,000,000 bytes 1024 KB 1024 bytes What is 1 KB equal to... 210 bytes
103 bytes 1000 bits 1000 bytes The amount of information required to binary encode 256 characters is... 1 bit
31 bytes 1 KB 1 baud What is 1 GB equal to... 210 MB
210 KB 1000 Mbit 1000 000 KB For binary encoding of a color pattern (256 colors) of 10x10 pixels in size,…. 100 bits
100 bytes 400 bits 800 bytes How many bits are in the word COMPUTER SCIENCE? 11
88 44 1 Beat is... logic element
the minimum unit of information that takes the value 0 or 1 the smallest unit of information that takes the value 0 minimal unit of information that takes the value 1 In roulette, the total number of holes is 32. How much information do we receive in the visual message about the ball stopping in one of the holes? 8 bits;
5 bits; 2 bits; 1 bit. A black and white (no grayscale) raster graphic image has a size of 10*10 pixels. How much memory will this image take? 100 bits;
100 bytes; 10KB; 1000 bits. A symmetrical tetrahedral pyramid is thrown. How much information do we receive in the visual message about its fall on one of the faces? l bit;
4 bits; 1 byte; 2 bits. A color (with a palette of 256 colors) raster graphic image has a size of 10*10 pixels. How much memory will this image take up? 100 bits;
400 bytes; 800 bits; 10 bytes The automated device makes 20 measurements per second. Recording each measurement takes 1 byte of information. How much memory will the computer need to record measurements taken in 1 minute? 160 bit
20 bytes 120 bit 1200 bytes The alphabet of a formal (artificial) language consists of two characters “0” and “1”. Each word in this language consists of three letters. What is the maximum number of words in this language? 32
16 10 8 Assuming that each character is encoded by one byte, estimate the information volume of the following sentence: “My uncle had the most honest rules, When he was seriously ill, He forced himself to be respected, And he couldn’t think of anything better.” 108 bit
864 bit 108 kilobytes 864 kilobytes The chessboard consists of 64 fields: 8 columns by 8 rows. What is the minimum number of bits required to encode the coordinates of one chessboard? 4
5 6 7 A message has been received with an information volume of 32 bits. What is this volume in bytes? 5
2 3 4 For 5 letters of the Latin alphabet, their binary codes are specified (for some letters - from two bits, for some - from three). These codes are presented in the table: Test "Coding text information"
1 option
Assuming that each character is encoded by one byte, determine the information volume of the following statement by Alexei Tolstoy:
He who does nothing makes no mistakes, although this is his
main mistake.
1) 512 bits 2) 608 bits 3) 8 KB 4) 123 bytes
The automatic device recoded the information message in Russian, originally written in 16-bit Unicode
, into 8-bit
KOI-8
. At the same time, the information message was reduced by 800 bits. What is the length of the message in characters?
1) 50 2) 100 3) 200 4) 800
The table below shows part of the ASCII code table:
| Symbol | 1 | 5 | J | K | P | j | k |
| Decimal code | 49 | 53 | 74 | 75 | 80 | 106 | 107 |
| Hex code | 31 | 35 | 4A | 4B | 50 | 6A | 6B |
What is the hexadecimal code for the character "p"?
1) 7016 2) 8516 3) 6F16 4) CE16
A message written in letters from the 64-character alphabet contains 60 characters. How much information does it carry?
A 2.5 KB information message contains 2560 characters. How many characters does the alphabet with which this message was written contain?
A 32-character alphabet was used to record the text. Each page contains 40 lines of 50 characters per line. How many bytes of information do 7 pages of text contain?
The message takes 6 pages of 30 lines. Each line contains 65 characters. How many characters are there in the alphabet if the entire message contains 8775 bytes?
KR_Encoding of text information
Option 2
1. Assuming that each character is encoded by one byte, determine
what is the information volume of the following statement by Rene
Descartes:
I think, therefore I exist.
1) 28 bits 2) 272 bits 3) 32 KB 4) 34 bits
The automatic device carried out the recoding
information message in Russian, originally written in 16-bit Unicode
, into 8-bit
KOI-8
. At the same time, the information message was reduced by 160 bits. What is the length of the message in characters?
1) 10 2) 20 3) 40 4) 160
The table below shows part of the code table:
| Symbol | WITH | T | U | I | With | T | at |
| Decimal code | 145 | 146 | 147 | 159 | 225 | 226 | 227 |
| Hex code | 91 | 92 | 93 | 9F | E1 | E2 | E3 |
What is the hexadecimal code for the character "i"?
1) 2A116 2) DF16 3) EF16 4) 18016
The message, written in letters from the 256-character alphabet, contains 80 characters. How much information does it carry?
An information message with a volume of 0.25 KB contains 1024 characters. How many characters does the alphabet with which this message was written contain?
A 4-character alphabet was used to record the text. Each page contains 30 lines of 70 characters per line. How many bytes of information do 5 pages of text contain?
The message takes up 5 pages of 25 lines. Each line contains 60 characters. How many characters are there in the alphabet if the entire message contains 3750 bytes?
