Symptoms of computer virus attack include: I improved processing speeds; Il drive light coming up without a parent reason; Ill unexplainable printer activity; IV the disappearance or strange files appearance on screen

• A. l, Il and Ill only
• B. I, Ill and IV only
• C. I, IIl and Iv only
• D. I, II, Ill and IV

What protocol is used between Email servers?

• A. SMTP
• B. SNMP
• C. FTP
• D. POP

The maximum length of a text field in MS Access is?

• A. 75
• B. 120
• C. 255
• D. 265

Which of the following statements is true of encryption? It

• A. provides complete privacy.
• B. provides security of varying reliability.
• C. makes messages un- readable by the recipient.
• D. permits an individual to have access to another person's message.

A suite of software that controls and manages the basic operation of a computer is?

• A. application Software.
• B. management system.
• C. software package.
• D. system software.

Converting 4B7₁₆ to binary?

• A. 0100 1010 0111
• B. 0100 1011 0111,
• C. 0100 1000 0111,
• D. 0100 1100 0111

The computer hardware is made up of system unit and?

• A. motherboard
• B. peripheral
• C. control unit
• D. central processing unit

Which of the following is not a step involved in data conversion?

• A. Input
• B. Output
• C. Process
• D. Transfer

The equivalent of the decimal number 89 in base 4 is?

• A. 1021.
• B. 1201.
• C. 1211.
• D. 1121.

(a) List the two main constituents of a computer (b) State four characteristics of a computer.

(c) In a tabular form, categorize each of the following statements into either data or information: (i) It is no significant alone by itself; (ii) It is significant by itself

(iii) It is obtained through observations and recordings (iv) It is obtained through analysis.