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Identify the oldest phone hacking technique used by hackers to make free calls.
Cracking
Phishing
Phreaking
Spamming
Which one of the following techniques, is used to hide information inside a picture?
Bitmapping
Image rendering
Rootkits
Steganography
Bluetooth operations use
magnetic technology
optical technology
laser technology
radio technology
Readymade styles that can be used for a word document are called -
Presentations
Letters
Templates
None of these
The computer system which uses a drum plotter is known as?
Mainframe Computer
Mini Computer
Both 'a' and 'b'
The command to reboot a computer is-
Ctrl + Alt +Tab
Ctrl + Shift + Del
Ctrl + Alt + Del
Ctrl+Alt+Shift
The main memory of a computer system is-
Volatile
Non-volatile
Restricted
Unrestricted