Convert the IPv4 address 192.168.11.10 to binary notation.

Question

Accepted Answer

11000000.10101000.00001011.00001010 — convert each octet with the subtraction method and pad to 8 bits.
Convert each octet using the subtraction method:

Decimal
Calculation
Binary

192
192-128=64, 64-64=0
11000000

168
168-128=40, 40-32=8, 8-8=0
10101000

11
11-8=3, 3-2=1, 1-1=0
00001011

10
10-8=2, 2-2=0
00001010

Result: 11000000.10101000.00001011.00001010
Remember: Each octet MUST be 8 bits (pad with leading zeros if needed).
Go deeper:

RapidTables — decimal to binary converter — convert each octet and confirm you padded every one to 8 bits.

Decimal	Calculation	Binary
192	192-128=64, 64-64=0	11000000
168	168-128=40, 40-32=8, 8-8=0	10101000
11	11-8=3, 3-2=1, 1-1=0	00001011
10	10-8=2, 2-2=0	00001010