1.3.4 Web Tech

Question 1

Pagerank Algorithm:

Answer 1

Link analysis: How many links the website has is counted, with weight on relevance of linker
Link weight distribution: A portion of the linkers importance is given to the linked page
Iterative Calculation: Uses a repetitive calculation process considering new weights each time
Damping factor: Probability that a user will not follow a link (between 0 and 1)

Question 2

Search Engine Indexing:

Answer 2

Crawling:
Web crawlers visit each site
Either selecting it from an existing link or following a link
Records the position of each word in the page
Stores them in an index
Follows links to other sites
Indexing:
Collected information is stored in search engines database
Every word from the webpage is put into an index which allows for quick retrieval of relevant information
Ranking:
Ranked based on keyword relevance and user engagement
Updates:
Crawlers sometimes check for updates

Question 3

HTML Prac

Answer 3

HTML Prac

Question 4

CSS Prac

Answer 4

CSS Prac

Question 5

Pagerank algorithm structure

Answer 5

Directed graph

Question 6

Server side reasons

Answer 6

+ Doesnt require plugins
+ Large calculations
+ Not browser dependant

Question 7

Client side reasons:

Answer 7

+ Webpage responds immidately
+ More control over behaviour