The ____________ fstream member function opens a file stream and connects the stream variable to a physical file whose name is the argument to the function.
a) ```
close( )
```
b) ```
overloaded operator <<( )
```
c) ```
open( )
```
d) ```
eof( )
```
e) ```
flush( )
```
c) ```
open( )
```
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The HTTP protocol is by definition stateless, meaning that it has no mechanism for "remembering" data from one interaction to the next. (a) Suggest a means by which you can preserve state between two HTTP calls. For example, you may send the user a page of books and prices matching a user's query, and you want to avoid having to look up the price of each book again once the user chooses one to
purchase. (b) Suggest a means by which you can preserve some notion of state between two web accesses many days apart. For example, the user may prefer prices quoted in euros instead of dollars, and you want to present prices in the preferred currency next time without asking the user. What will be an ideal response?
An 800W power supply running full load at 220VAC (single phase) draws approximately:
A. 0.275A B. 1.76A C. 3.64A D. 6.67A