Hence, there is permanent or 24 hour visibility of geostationary satellites without the need of handoffs. While LEO & MEO satellites do not have 24 hour visibility as the satellites have smaller footprints since they are closer to the earth (low satellite height). Hence, a larger number of satellites are needed to cover the earth. Also, since each satellite has a small footprint, handoffs are also required between satellites.

Major differences between LEO, MEO & GEO satellite systems:

Note -

• HEO refers to highly elliptical orbits which have a visibility of about 12 hours.
• ICO or intermediate circular orbit is an example of MEO.
• GPS satellites are not in Geostationary orbits but instead, they orbit twice for every rotation of the earth at a height of 20, 000 km.
• Handheld terminals have low sending power are hence use LEO for mobile communication. LEO are also closest to the earth, have better signal strength and less time delay.

Major differences between LED & LASER optical sources for optic-fiber communication:

Major differences between WCDMA (3GPP) & CDMA2000 (3GPP2) standards for CDMA-based 3G implementations:

Major differences between FTP(File Transfer Protocol) & TFTP(Trivial File Transfer Protocol) Application layer protocols for file transfer:

a. 0
b. 1
c. 69
d. 35

Executable - Download decimal2binary.exe

Code -

#include<stdio.h>
#include<conio.h>

/* program to convert decimal to binary
- works for positive numbers 0-127 */

int main()
{
    int x, i=0;
    printf("Enter the decimal number\n");
    scanf("%d", &x);
    int y=x;
    int j=0;
    /* this loop gets a count of the number of bigits/remainders */
    while(x!=0)
    {
      i=x%2;
      x=x/2;
      j++;
    }
    x=y;
    int n=0, a[n];
    /* second loop feeds values of bigits to array */
    while(n<j && x!=0)
    {
      i=x%2;
      x=x/2;
      a[n]=i;
      n++;
    }
    n=0;
    printf("The binary equivalent is ");
    /* third loop prints the reversed array */
    while(n<j)
    {
      printf("%d", a[j-(n+1)]);
      n++;
    }
    getch();
    return 0;
}

Problem Statement : Write A Program that receives the month and year from the keyword as integers & prints the calendar in the following format.

Input : Month, Year

Output:
Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31

Adding a link to the first executable. Will post the source code soon - needs some big time improvement.

Note - It doesn't work for certain leap years. Will fix it and update soon.

Download - calender.exe