5.5 digital security

Question 1

what is antivirus software?

Answer 1

any software that prevents unwanted access to a computer system and undesirable attacks from websites containing viruses

Question 2

what is a firewall?

Answer 2

a software programme or a piece of hardware that helps protect the computer system from hackers viruses and worms from the Internet

Question 3

what is anti-spyware?

Answer 3

software that detects and removes spyware programmes, monitors incoming data from emails websites and downloads or files to prevent spyware programmes from getting into the system

Question 4

what should a password contain?

Answer 4

passwords should be strong so that they cannot be guessed ideally they should contain a combination of digits and characters

Question 5

what does it mean by permissions?

Answer 5

restricts access to information, can be set as read only or read can restrict the deletion of files.

Question 6

what is encryption?

Answer 6

transformation of information into a format that is unintelligible to anyone who does Not have the correct key. the sender and recipient must use the same algorithm, the sender uses a shared secret key to encrypt the message; the recipient uses the same key to decrypt the message.