There are no zero-length strings that start with 1 bit or end with 2 bits. In a zero-length string, there are no bits at all.
-- There are 256 bit strings of length 8 . -- There are 4 bit strings of length 2, and you've restricted 2 of the 8 bits to 1 of those 4 . -- So you've restricted the whole byte to 1/4 of its possible values = 64 of them.
56 The number of triples of 1s on 8 bits
That's just the highest number that can be counted with 6 bits ... 127 .
You are essentially asking how many different bit strings of length 9 are there, as the first 3 bits are fixed. The answer is 2^9 = 512.
Character string values storage:1. CHAR:§ Stores strings of fixed length.§ The length parameter s specifies the length of the strings.§ If the string has smaller length it padded with space at the end§ It will waste of a lot of disk space.§ If the string has bigger length it truncated to the scale number of the string.2. VARCHAR:§ Stores strings of variable length.§ The length parameter specifies the maximum length of the strings§ It stores up to 2000 bytes of characters§ It will occupy space for NULL values§ The total length for strings is defined when database was created.3. VARCHAR(2):§ Stores strings of variable length.§ The length parameter specifies the maximum length of the strings§ It stores up to 4000 bytes of characters§ It will not occupy space for NULL values§ The total length of strings is defined when strings are given
The question is exactly equivalent to: "What's the highest binary number with 6 bits ?There are 64, corresponding to the binary numbers from 0 to 63.
Binary
It is possible to borrow a possible 3 bits from 192.168.1.0.
Since there are 8 bits in between, and they can assume any of the two values (0 or 1), that results in a total of 28 different combinations.
4
They are notated as 8 hexadecimal character strings which are separated by colons. Example; 01AE:03BE:0978:0974:EB1A:45CE:D43E:EE1A An IPv6 address is made up of hex consisting of 8 fields of 16 bits per field separated by colons. The total address size is 128 bits in length.
1