Computer Science 9th Class English Medium Online Test With Answers

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Computer Science 9th Class English Medium Online Test

Sr. # Questions Answers Choice
1 In digit system 0 epresents? OF OFF ON All of these
2 Digital system depends on? 10 00 11 None of these
3 In an RGB color model, what does RGB stand for? Red. Green Brown Red, Gray, Black Red, Green, Blue Right ,Green, Blue
4 What are the tiny dots that make up an image called? Pixels Bits Bytes Nodes
5 In the single precision, how many bits are used for the exponent. 23 bits 11 bits 8 bits 52 bits
6 What is the primary difference between signed and unsigned integers? Unsigned integers cannot be negative Signed integers have a larger range Unsigned integers are stored in floating -point format Signed integers are used for positive numbers
7 How may bytes are used to store a typical integer? 1 byte 2 bytes 4 bytes 8 bytes
8 Which of the following is a key advantage of Unicode over ASCII? It uses fewer bits per character It is backward compatible with binary It is specific to the English language It can brepresent characters from many different lanaguage
9 How many bits are used in the standard ASCII encoding? 7 bits 8 bits 16 bits 32 bits
10 Which of the following numbers is a valid biary number 1101102 1101 A 110.11 11011
11 1 TB = (1,024) GB or ........................bytes. (1,024)<sup>4</sup> (1,024)<sup>5</sup> bytes (1,024) KB ot (1,024)<sup>2</sup> (1,024)<sup>3</sup>
12 1 GB = (1,024) MB or............bytes. (1,024)<sup>5</sup> bytes<div><br></div> (1,024)KB or (1,024)<sup>2</sup> 8 (1,024)<sup>3</sup>
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