Answer:
The answer is "both voluntary and non-voluntary context switch".
Explanation:
The description to this question can be described as follows:
Whenever processing requires resource for participant contextual switch, it is used if it is more in the situation of I/O tied. In which semi-voluntary background change can be used when time slice ends or even when processes of greater priority enter.
- In option a, It requires voluntary context switches in I /O bound.
- In option b, it requires a non-voluntary context switch for CPU bound.
Answer:
2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.
Explanation:
The options are:
1. Before a volcano erupts, earthquake activity beneath the volcano decreases.2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.3. When a volcano erupts, the amount of carbon dioxide and sulfur dioxide emitted decreases. 4.Scientists measure the amount of these gases to determine the amount of magma present in the volcanic reservoir.
The answer is certainly 2. as seismometers are being used to find out the details of the earthquake activities which occur inside a volcano. And with this information, the volcanologists then predict the eruption of that particular volcano. Hence, the 2nd option does not have any factual errors, and all the others have factual errors.
Answer:
/*
* Program to write data to text file.
*/
#include<iostream>
#include<fstream>
#include<string.h>
using namespace std;
int main()
{
//Variable to name and age of a person.
string name;
int age;
cout<<"Enter your name"<<endl;
cin>>name;
cout<<"Enter your age"<<endl;
cin>>age;
//Creating object of ofstream.
ofstream file;
file.open ("outdata.txt");
//Writing data to file named outdata.txt
file<<name<<" "<<age;
file.close();
}
Output:
Enter your name
John
Enter your age
25
Content of Output.txt:
John 25
Explanation:
To write data to a file ofstream object is used. An ofstream object file is created first and then using this object a file named "outdata.txt" is created.
Finally using shift operator (<<), by means of operator overloading, name and age of person is transferred to file outdata.txt.
<span>I can't imagine any reason "why" he should have behaved in such an extraordinary way.
If we were to use "how" in that sentence it would contradict the context. We are obviously talking about a situation that has happened so we know that "he" has in fact acted in an extraordinary way but we don't know "why" he acted that way. Therefore "why" is the correct term to use.</span>
