Which of the following are not valid IPV4 addresses?
A. 192.10.14.3
B. 200.172.287.33
C. 65.92.11.00
D. 10.34.110.77
Please scroll down to see the correct answer and solution guide.
Right Answer is: B
SOLUTION
IPV4 address range: 0.0.0.0 to 255.255.255.255
Option 1:
192.10.14.3, is between above range so valid IPV4 address. Class C address.
Option 2:
200.172.287.33, is not between above range because 287 is, greater than maximum range
(28-1 = 255).
Option 3:
65.92.11.00, is between above range so valid IPV4 address. Class A address
Option 4:
10.34.110.777, is between above range so valid IPV4 address. Class A address
Hence option 2 is the correct answer.
Important Point:
Type of Classful address and their range
|
Class |
Leading bits (Reserved) |
Network ID (bits) |
Number of Networks |
Host ID (bits) |
Start Address |
End Address |
|
Class A |
0 |
8 |
27 |
24 |
0.0.0.0 |
127.255.255.255 |
|
Class B |
10 |
16 |
214 |
16 |
128.0.0.0 |
191.255.255.255 |
|
Class C |
110 |
24 |
221 |
8 |
192.0.0.0 |
223.255.255.255 |
|
Class D |
1110 |
Not Defined |
Not Defined |
Not Defined |
224.0.0.0 |
239.255.255.255 |
|
Class E |
1111 |
Not Defined |
Not Defined |
Not Defined |
240.0.0.0 |
255.255.255.255 |