lesson 1: WWW, internet, info privacy Flashcards

1
Q

what is the internet

A

interconnected networks-not the same as www

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2
Q

when a comp is turned off, do application systems have the ability to store info. What can?

A

no bc they are terminated

it is the storage device that can store info (hard disk). this is why we save our files.

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3
Q

what does web server down mean

A

means a software application/system is not working

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3
Q

most used web servers

A

apache. http, litespeed, openresty

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4
Q

what is www

A

one of the many services the internet provides. provides acess to internet info/resources such as videos

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5
Q

what is http protocol

A

a request response stateless protocol that doesnt remeber user info. there will be no response if there is no request

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6
Q

url

A

uniform resource locator

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7
Q

what are 1998 cookies

A

a text file max 4k bytes

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8
Q

what server is the internet based on

A

client server architecture which has no built in security measures

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9
Q

which layers does the web server deal w

A

application
presentation
session

(do not provide security)

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10
Q

why is www based on n-tier architetecure

A

bc secruity reasons that affect the web server not j the web user

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11
Q

tier 1-presentation tier

A

-consists of web browser and http part of the web browser

-responsible for collecting the request from the user and fowarding the request to the web server

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12
Q

tier 2 application tier

A

contains server-side scrips which are exectued to process data and send the info to tier 1

aso handles identity autenication

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13
Q

tier 3 data tier

A

retrieve data and send it to tier 2 for processing

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14
Q

internet applications

A

email, www, text messaging

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15
Q

what is proxy server

A

middle man btw users device and internet

-filters bad websites
-provides better security
-control access to certain webs
-saving badnwith by caching files

16
Q

what is the internt fill definition

A

global system of interconnected networks that uses the internet protocol suite to communicate btw networks and devices

17
Q

internet protocols

A

set of communication protocol used in the internet and similar computer networks

TCP and IP

18
Q

how does internet transfer data

A

through store and foward process

When data moves btw networks on the Internet, each one checks if it’s the destination.
If not, it passes the data to the next network, ensuring the data stays safe and intact through a “Store and Forward” process.

19
Q

fundamental requirement of a communication system

A

data integrity
the receiver must receive the exact dara that was sent by the sender

20
Q

why is the internet not secure

A

many networks involved in delivering data and every network involved has acess to your data

21
Q

information privacy

A

relationship between the collection and disemination of data, technology, the public exeption of privacy, and political issues

22
Q

what are cookies

A

enable web servers to store stateful info such as items in cart or track browsing activity or saved info. it is a text file stored on users hard disk

23
Q

first party cookie

A

-http cookie created by the targeted website
-max 4k bytes

24
Q

session cookie

A

removed when the web browser closes

25
Q

permanenet cookie

A

stays on the users hard disk for 90 days

26
Q

third party cookie

A

created by pop ups

27
Q

configuration cookies web beacon

A

transparent image that resides inside web pag or email to track user behavior

28
Q

flash cookie

A

-sent by web server to web browser
-created by adobe and must be removed that way too
-can be used to attach virus

29
Q

evercookie

A

permentat cookie by javascript

30
Q

what are cookies used for and definition

A

session management: lets wb recogbnize users and recall login info and preferences

personalization: customized ads personalize sessions and build targeted ads

tracking: shop use cookies to track user perviiously veiwed items allowing them to suggest other thingd they may like