Module 3.3 Flashcards

(51 cards)

1
Q

what is the internet

A

the internet is a worldwide computer network, consisting of computers and networks that are linked using telephone lines, undersea cables, satellite or microwave for the purpose of communicating and sharing of resources

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2
Q

what does IP stand for

A

internet protocol

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3
Q

what does an IP address consist of

A

4 sets of digits separated by dots

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4
Q

4 things needed to connect to the internet

A
  1. computer/internet enabled device
  2. internet service provider (ISP)
  3. internet connection
  4. wired/wireless connection
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5
Q

what is an ISP

A

company that has a permanent, fast connection to the internet which sell their internet access and services for a monthly fee

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6
Q

examples of ISP

A

MWEB, TelkomSA, MTN, Internet Solutions

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7
Q

what is bandwidth or data transfer

A

total amount of data that can be carried from one point to another in a given period of time

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8
Q

how is bandwidth measured

A

bits per second: kilobits pers second(Kbps), megabits per second(Mbps)

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9
Q

what is broadband

A

any permanent, high speed, high bandwidth connection to the internet

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10
Q

what does ADSL stand for

A

asymmetrical digital subscriber line

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11
Q

what is an ADSL

A

permanent digital connection to the internet using telephone line, connection split into phone calls and internet

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12
Q

how do you get ADSL

A

a modem or router used connect your computer to an ADSL line that is rented from telecommunications provider

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13
Q

why is there more bandwidth for download than upload speed

A

need higher speed to download web pages, music or video files than needed to send an email (tend download more than upload)

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14
Q

breakdown the costs of ADSL

A
  1. monthly ISP cost
  2. cost rental line
    *dont pay connection time to internet but pay telephone calls at normal rate
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15
Q

2 characteristics of ADSL

A
  1. access internet and make phone calls at same time
  2. check availability of service from ISP as there is not coverage in every area
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16
Q

what is your ‘cap’

A

ISPs offer different packages which offer different, limited amounts of gigabytes of data to be downloaded and uploaded in a month, the limited amount is referred to as your cap

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17
Q

What is the world wide web

A

service runs on the internet and is a vast collection of interlinked, interactive documents stored on computers all over the world, accessed via the internet

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18
Q

briefly describe HTML

A

HyperText Markup Language, supports links other documents as well as graphics, audio and video files

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19
Q

what is a web page

A

any electronic document on the web

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20
Q

what is a website

A

consists of related web pages and is maintained by organisation such as a school or a company

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21
Q

what is a hyperlink

A

built-in connection to another related web page and indicated by text underlined in blue/blue outline. ‘bridges linking sites on the web

22
Q

what is a web server

A

computer hosts websites and is connected to the web

23
Q

what is a webmaster

A

a person who maintains and develops a website on an ongoing basis

24
Q

what is the function of world wide web consortium (W3C)

A

develop standards so that WWW reaches full potential and ensure long-term growth

25
URL:
uniform resource locater
26
what is a URL
alpha-numerical address used identify resources like web pages, documents, files that are stored on web servers on the web
27
where is the URL entered
address bar of a web browser
28
IP
internet protocol: used for communication over a network or the internet
29
HTTP
HyperText Transfer Protocol: defines how many pages transferred on web (automatically added in by browser)
30
HTTPS
shows site is secure
31
SMTP
Simple Mail Transfer Protocol: used for email transmission over internet
32
FTP
File Transfer Protocol: used fast, easy transfer of files between remote computers have internet connection
33
VoIP
Voice over Internet Protocol: manage delivery of voice information over internet
34
12 types of websites
1. portal website 2. news website 3. informational website 4. business/marketing 5. personal 6. weblog (blog) 7. social networking 9. wiki 10. educational 11. entertainment 12. advocacy
35
what is an advocacy website
describes opinion, idea or cause and usually presents views particular group/association
36
what is a portal website
(link pages) - offer selection Internet services from one convenient location .eg. MWEB, Google, Yahoo
37
what is a (we)blog
websites updated often with news and events, reads like a journal
38
what is a wiki website
allows people create and edit web content collaboratively , anyone contribute
39
what is a web application
any application accessed over internet and not stored on your local computer
40
examples of web applications
1. Gmail 2. Kalahari.net 3. eBay
41
what is a content aggregator
website/web application that gathers different web content from many online sources
42
2 main types of content aggregator
1. gathers information and displays on own website 2. gathers information and distributes it, subscribe choose what information you want to receive
43
what is syndication
when you receive notification of updates as they become available
44
RSS
real simple syndication
45
6 ways to evaluate a website
1. authority: credentials of author, type of institution 2. accuracy: site offer selected list of sources 3. content/design: easy navigate, well organised, user-friendly 4. audience: satisfy needs 5. currency: up-to-date 6. objectivity: is it unbiased
46
what is a web browser
software application allows user view and explore webpages on web via hyperlinks or URLs
47
examples of web browser
1. Google Chrome 2. Apple Safari 3. Internet Explorer (Microsoft Edge) 4. Mozilla Firefox
48
what is a search engine
program used search for documents located on WWW by using keywords or phrases entered by user when looking for information
49
how do search engines work
use programs called spiders or robots to crawl web and log keywords from web pages for which searchable databases are compiled which is then scanned. if word or phrase found called 'hit'. hits returned to user order of relevance
50
examples of search engines
1. www.google.com 2. www.yahoo.com 3. www.bing.com 4. www.ask.com
51
5 steps for successful searching
1. state exactly what you want to find 2. identify keywords 3. use synonyms 4. check your spelling 5. use advanced search options