Answer to Question 1
DENIAL OF SERVICE (DoS) Hackers attack or flood a server with phony authentication methods preventing people from accessing it and ultimately shutting it down.
VIRUSES A computer program designed to infect a program file that may create annoying screen messages to wipe out an entire hard drive. Like a biological virus, a computer virus infects a host and uses the capabilities of its host to replicate. Once executed, a virus can cause damage by erasing or altering data or files, or by simply replicating until no disk space remains and the computer seizes to function. Viruses can be transmitted from one computer to another via email.
WORMS Are computer programs designed to automatically make copies of themselves. Unlike viruses, a worm is self-executing, largely invisible to the computer users, and spreads from computer to computer over a network without any user action.
TROJAN HORSES A program that appears to be useful or benign but actually conceals another program that is designed to be damaging, annoying, or humorous.
WEB / IP SPOOFS Hackers create a false or shadow copy of a legitimate website that looks just like the real one, with all the same pages and links. All network traffic between the victims browser and the spoofed site are funneled through the hacker's machine. The hacker can acquire private information such as passwords, credit card numbers, account numbers, etc.
Answer to Question 2
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Play in Four Cultures Across cultures, play is the most common activity in early childhood. Source:
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