Port blocking would be a suitable term. It can apply to both TCP and UDP, but not IP. IP is the lower common layer that doesn't have the concept of a port.
Answer:
// here is code in C++
#include <bits/stdc++.h>
using namespace std;
// main function
int main()
{
// variables
int n,no_open=0;
cout<<"enter the number of lockers:";
// read the number of lockers
cin>>n;
// initialize all lockers with 0, 0 for locked and 1 for open
int lock[n]={};
// toggle the locks
// in each pass toggle every ith lock
// if open close it and vice versa
for(int i=1;i<=n;i++)
{
for(int a=0;a<n;a++)
{
if((a+1)%i==0)
{
if(lock[a]==0)
lock[a]=1;
else if(lock[a]==1)
lock[a]=0;
}
}
}
cout<<"After last pass status of all locks:"<<endl;
// print the status of all locks
for(int x=0;x<n;x++)
{
if(lock[x]==0)
{
cout<<"lock "<<x+1<<" is close."<<endl;
}
else if(lock[x]==1)
{
cout<<"lock "<<x+1<<" is open."<<endl;
// count the open locks
no_open++;
}
}
// print the open locks
cout<<"total open locks are :"<<no_open<<endl;
return 0;
}
Explanation:
First read the number of lockers from user.Create an array of size n, and make all the locks closed.Then run a for loop to toggle locks.In pass i, toggle every ith lock.If lock is open then close it and vice versa.After the last pass print the status of each lock and print count of open locks.
Output:
enter the number of lockers:9
After last pass status of all locks:
lock 1 is open.
lock 2 is close.
lock 3 is close.
lock 4 is open.
lock 5 is close.
lock 6 is close.
lock 7 is close.
lock 8 is close.
lock 9 is open.
total open locks are :3
Answer:
I think the answer is going to be paragraph
Answer:
Following are the code to the given question:
Explanation:
<html>
<body>
<p align="center" >VOCATIONAL SUBJECT</p>
<table align="center" border="2">
<tr>
<td rowspan="2">YEAR</td>
<td colspan="5">Vocational course</td>
</tr>
<tr>
<td rowspan="1">IT</td>
<td rowspan="1">CS</td>
<td rowspan="1">EL</td>
</tr>
<tr>
<td colspan="1">2016</td>
<td colspan="1">66</td>
<td colspan="1">68</td>
<td colspan="1">60</td>
</tr>
<tr>
<td colspan="1">2017</td>
<td colspan="1">77</td>
<td colspan="1">78</td>
<td colspan="1">80</td>
</tr>
<tr>
<td colspan="1">2018</td>
<td colspan="1">60</td>
<td colspan="1">67</td>
<td colspan="1">70</td>
</tr>
</table>
</body>
</html>