The internet and its uses

Question 1

WWW

Answer 1

world wide web

Question 2

Internet

Answer 2

users can send and receive emails
online chatting
worldwide collection of interconnected networks and devices

Question 3

WWW

Answer 3

collection of multimedia web pages
can be accessed by web browsers
uses the internet to access information

Question 4

Web browsers

Answer 4

software that allows users to access and display web pages

Question 5

Cookies

Answer 5

small files or code stored on a users computer
hold user preferences and pervious browsing history
user tracking across websites
custom ads

Question 6

Digital currency

Answer 6

exists purely in digital format
payments for goods and services
relies of central banking system

Question 7

cryptocurrency

Answer 7

uses cryptography to track transactions
within blockchain

Question 8

block chain

Answer 8

decentralised database
not connected to a central sever
cannot be changes without the consent of all network members

Question 9

trojan horse

Answer 9

disguised as a legitimate software but with malicious instructions embedded

Question 10

spyware

Answer 10

monitors a users activities and send the info to the hacker

Question 11

adware

Answer 11

gives the user unwanted ads

Question 12

ransomeware

Answer 12

holds data hostage and will return it upon receiving payment
cam restrict access to computer

Question 13

phising

Answer 13

sends legitimate-looking emails
users enters personal details
hacker uses personal details

Question 14

pharming

Answer 14

installs code on users computer
user is redirected to fake website
user enters personal detail

Question 15

privacy settings

Answer 15

SSL (secure socket layer)

Question 16

Access-levels

Answer 16

each user has certain access to the database

Question 17

anti-spyware

Answer 17

detects and removes spyware programs installed illegally

Question 18

authentication

Answer 18

used to prove user is who they say they are
password
pin
biometrics

Question 19

biometrics

Answer 19

fingerprint
retina scans
face and voice recognition

Question 20

2-step verification

Answer 20

2 methods of authentication

Question 21

firewall

Answer 21

can be software/hardware
sits between user and internet
manage traffic
helps prevent viruses and hackers from entering

Question 22

proxy servers

Answer 22

between user and web server
filters internet traffic
helps prevent DDoS
keep IP address secret

Question 23

SSL (secure socket layer)

Answer 23

authenticate a website
encrypts communication between user and web page
like a key