Convert the IP address 172.68.10.2 from decimal to binary.

Convert the IP address 172.68.10.2 from decimal to binary.

• A. 10101100.01000100.00001010.00000010
• B. 11010100.11101000.00001000.00000010
• C. 10101000.00110000.00001010.00000010
• D. 10101100.01010000.00001010.00000001

Answer: (A)

To convert the IP address 172.68.10.2 from decimal to binary, each of the four decimal octets must be converted individually into an 8-bit binary format. 1. The first octet is 172. In binary, 172 is represented as: - 172 divided by 128 (2^7) gives 1 (the highest bit). - 172 - 128 = 44, so: - 44 divided by 64 (2^6) gives 0. - 44 divided by 32 (2^5) gives 1 (the next bit). - 44 - 32 = 12. - 12 divided by 16 (2^4) gives 0. - 12 divided by 8 (2^3) gives 1 (the next bit). - 12 - 8 = 4. - 4 divided by 4 (2^2) gives 1 (the next bit). - 4 - 4 = 0. Therefore, 172 in binary is 10101100. 2. The second octet is 68. Its binary conversion works out as:

To convert the IP address 172.68.10.2 from decimal to binary, each of the four decimal octets must be converted individually into an 8-bit binary format.

1. The first octet is 172. In binary, 172 is represented as:

• 172 divided by 128 (2^7) gives 1 (the highest bit).

• 172 - 128 = 44, so:

• 44 divided by 64 (2^6) gives 0.

• 44 divided by 32 (2^5) gives 1 (the next bit).

• 44 - 32 = 12.

• 12 divided by 16 (2^4) gives 0.

• 12 divided by 8 (2^3) gives 1 (the next bit).

• 12 - 8 = 4.

• 4 divided by 4 (2^2) gives 1 (the next bit).

• 4 - 4 = 0.

Therefore, 172 in binary is 10101100.

2. The second octet is 68. Its binary conversion works out as: