Worksheet 1(Chapters 1 to 3)
A. Fill in the blanks.
1. 13
2. Downloading
3. Virus
4. Share
B. Select the correct option.
1. b. Microsoft Edge
2. b. 1
3. a. Phishing
4. b. Sign out
C. Answer the following questions
1. To convert the hexadecimal number (4F)₁₆ to the decimal number system: (4F)₁₆ = (4 * 16¹) + (F * 16⁰)
= (4 * 16) + (15 * 1) = 64 + 15
= 79
2. Bank fraud is the use of illegal methods to get money or other things that belong to a bank or its customers. In this case, the fraudsters might pretend to be a bank or financial organisation to trick people into giving them money.
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