Web Science/Part2: Emerging Web Properties/How big is the World Wide Web/Problems with the question about the size of the Web/quiz

{Which two reasons make it difficult to answer the question: "What is the size of the world wide web?"} + It is not clear what size means. + It is underspecified what we understand as the world wide web - the dark web makes it hard to index all web pages - Once the size of something exceeds a peta byte it cannot be measured precisely
 * even though the fact is true. this is not a correct answer with respect to the video

{When Looking at this picture of the web. What modelling choices could have been made?} + web pages are nodes of a graph and edges are links + domains are nodes of a graph and edges exists for every link between domains + all of the above - none of the above

{Which of the following viewpoints are commonly used when modelling the world wide web} + software system - a diagram + graph of connected web pages - a mathematical function - a spider web + collection of text documents

{how could you measure the size of a distributed software system} + count how many computers have the software installed - gather information about the computing time being used - you cannot do so + the linces of code of each installed software component is a good indicator