Describe a LAN - a network which covers a small geographical area, Give an example of Personal Data - Name, Address, Hobbies/Interests, Places you travel, Spending habits etc., What is a WAN - A network which covers a large geographical area, What is Hacking? - Attempting to gain access to data without permission. , What is Malware? - any program that is harmful to a computer system. , Give an example of Malware. - Virus, Worm, Trojan, Spyware, Keylogger, Adware, Rootkit, Describe a phishing attack. - Might use of a fake email to trick users into handing over their personal data. , Give an example of something you can use to protect your computer system. - Encryption, Firewall, Anti-Virus. , What is encryption? - Messages sent between computers can be scrambled. , How does a firewall protect a computer system? - Firewalls filter outgoing or incoming connections that do not meet certain rules. , Describe Anti-Virus Software - Anti-virus contains a list of known virus that allow the computer to block or delete known viruses. , What command is used to declare a variable? - DIM , What data type would be used to store the number 3? - Integer, What data type would be used to store the first name of a person? - String, Which data type would be used to store the number 3.14? - Real, Which data type would be used to store the value TRUE? - Boolean, What are variables used for? - used to store data/information in a program, What is the Internet? - A global network of connected networks, What is a browser? - Software used to view web pages, What is a server? - Network hardware used to control access to a resource such as a printer ,

S2 Computing Science (Revision Flashcards)

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