In UNIX, a pipe is created by using: pipe(fd[]);
Where fd[] is defined as:
int fd[2];
Such that fd[0] is a read end of the pipe and fd[1] is the write end.
Now consider a parent process using the following system call to write to a pipe:
write(fd[WRITE_END], write_message, strlen(write_msg)+1);
If the message to be written is "Hello Class!", which parameter in the write() system call has a value equal to "Hello Class!"?
write_message
WRITE_END
none, another variable or a printf() is needed.
depends on which variable is given that value.

Exchanging which type of data uses the least bandwidth? music photographs video voice bandwidth- the amount of data that can be moved between two points in a set time period

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

For a typical middle-income family, what is the estimated cost of raising a child to the age of 18? $145,500 $245,340 $304,340 $455,500