29. IP address version 4 is in which format ?
A.4 bit
B.8 bit
C.16 bit
D.32 bit

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30. Computer security can be increased by using ?
A.Firewall
B.Antivirus
C.Password
D.All of above

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31. In banking, railways etc which computers are used ?
A.Mini Computers
B.Micro Computers
C.Main Frames
D.Super Computers

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32. When a document is opened in computer it is temporarily stored in ?
A.Hard Disk
B.RAM
C.ROM
D.All of above

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33. Which type of software is an operating system ?
A.Utility Software
B.System Software
C.Application Software
D.Firmware Software

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34. Set of instructions which instructs computer to perform certain task is called ?
A.Debugger
B.Assembler
C.Program
D.Flowchart

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35. Which type of switching is used in Internet ?
A.Packet
B.Telephone
C.Circuit
D.Telex

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