Hi guys any query?????

Custom IP addressing with Class-C IP address and Class-B Subnet Mask

Hi,
Is it possible to use IP Address 192.168.1.100 with subnet mask 255.255.0.0 ?

How to find collision Domain and Broadcast domain

To find CD and BD follow these rules

1) HUB-                1CD - 1BD
2) Switch- Multiple CD - 1 BD
3) Router- Multiple CD - 1 BD
4) Bridge- Multiple CD -  Multiple BD

R---------------R----------------R
|                 |                 |
|                 |                 |
|                 |                 |
S               H--PC        B
|                 |                |

PC            PC             H-------PC

CD-7
BD-5
                                     

CCNA Subnetting Question with answer: What wil be the valid host range for network 172.23.12.0/23

Given Network = 172.23.12.0

Subnet Mask = /23 = 255.255.254.0

We calculate the Block Size for third Octet = 256-254

                                                       = 2

CCNA Subnetting Question with answer: What will be the Subnet Mask for Point to Point Link between Router?

For Point to point to link we require two IP addresses. For two IP address we can calculate the subnet mask as below.

Number of Host = 2 ^{off bits} - 2

2 = 2 ^{off bits} - 2

How to decrypt MD5 password of a router

Use this following link to decrypt MD5 password.

http://md5decryption.com/