In a stateless connection, each transmission is independent, no continuous connection is maintained. Stateless system is a problem for shopping cart software because it does not keep information from one transmission or session to another, thus shopping cart must store information about specific shoppers and their purchases.
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Answer:
Total time = 190 ms
Explanation:
The requests missing in question are:
Requests ( A, 80) , (B,75) , (C,82) , (D,90) , (E,45)
Number of movements = | 70 - 45 | + | 45 - 0 | + | 0 - 75 | + | 75 - 80 | + | 80 - 82 | + | 82 - 90 |
= 35 + 45 + 75 + 5 + 2 + 8
= 70 + 80 + 10
= 160
Time taken for seek = 160 * 1 ms = 160 ms
Time taken for servicing request = Number of tracks * Time for each track = 5*6 = 30
Total time = 160 + 30 = 190 ms.
Answer:
By using dependency injection, create the adapter to adapt both the DataViz and the UberStats interface as expected.
Explanation:
Adapters are used in Objected-oriented programming to run or convert the output of one class object to another. The DataViz class currently uses the SuperStats class as an adaptee to get and output statistical results.
Write a new code from the scratch is tedious, so, the UberStats class dependencies are injected in the adapter and the DataViz and UberStats class functionalities can be experimented with.
When a function template has two parameterized types, one as the return value, and one as an argument, then THE FIRST TIME MUST BE EXPLICITLY CODED.
Explanation:
- The act of implicit and explicit coding, and implicit and explicit code, is defined by context of execution of additional behavior or type setting/casting. Specifically, implicit or explicit methods are defined by the contexts in which they are meant to be used.
- The explicit coding discipline favors clear and explicit expression of intent in the code.
- The uses-cases dictate the structure of the application. What the application does should not be implicitly hidden in an organization that the framework is trying to dictate you. Avoid having folders like /controllers, /views at the highest level of folders organization, in favor of folders containing features and use-cases: /categories, /products, etc.
- Template parameter represents a type that has not yet been specified, but that can be used in the template function as if it were a regular type.
