Which of these IP addresses is not a valid address? a. 199.199.3.3 b. 192.168.258.4 c. 192.168.0.9 d. 10.10.10.40

B. 192.168.258.4

Explanation:

The network layer in the OSI network model introduces the IP header to the data for transmission. This IP header contains the source and destination IP addresses.

IP address is a logical address given to network devices to allow routing of data to different points in a network. There are two versions of IP addresses and they are version 4 and 6.

The IP version 4 is a 32 bit address, divided into dot notations of four octet ( eight bits). Each 8 bits is equivalent to 256 possible address spaces, that is, 2^8 is equal to 256. The address space can not exceed 256.

Example of invalid IP address is 192.168.258.4, where the third octet exceeds 256.

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