Answer: URN(Uniform Resource Name) is the basically a subset of the Uniform Resource identifier(URL). It uses "urn"scheme for the working an implementation. Uniform resource name functions by identifying components uniquely through their name.
The most common example of URN is ISBN (International Standard Book Number)number which helps in the unique searching and identification of book.
Answer:
Lossy image formats will remove data during compression as a trade off for lower storage occupation. Lossless data formats will not remove data during compression, resulting in higher quality but also higher storage occupation.
Graphic Artists will almost always use lossless due to it delivering the highest quality image possible.
Answer:
b. cart total + 1
Explanation:
A. cart total=1 do increment the total with every 1 click here, it only 're-assigns cart total with value 1 for every click, hence it's always 1.
B. In every click, 1 is always added to the previous value of cart total, like addItemButton(cart total+1) or so.
C. This would have worked too if "cart total" and "cartTotal" where of same type.
D. cart total is just being initially defined here.
E. Likewise here, var shows that cart total has just only been declared.