MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -An IPv4 address is 32 bits. An IP Address is shown as 4 decimal numbers representing 4 bytes: d.d.d.d where d = decimal number (0-255). High order bits are the network identifier and lower order bits are the host identifier.

Detailed explanation-2: -An Ipv6 address uses 128 bits as opposed to 32 bits in IPv4. Because an hexadecimal number uses 4 bits this means that an IPv6 address consists of 32 hexadecimal numbers. These numbers are grouped in 4’s giving 8 groups or blocks. The groups are written with a : (colon) as a separator.

Detailed explanation-3: -IPv4 chose 32 bit because it was the biggest register found in any common processors at the time. It was an arbitrary choice that seemed good enough at the time. When IPv4 was originally devised we all believed it was sufficiently large enough. Few, if any, envisioned what happened 20+ years later.

Detailed explanation-4: -The IP protocol identifies each computer connected to the network by its corresponding address. This address is a 32 bits number in Ipv4, that has to be unique for each server or computer, which we will call “host”. The IP addresses are usually represented as four decimal ciphers, of 8 bits each, separated by dots.

Detailed explanation-5: -The IPv4 is a 32-bit address, whereas IPv6 is a 128-bit hexadecimal address. IPv6 provides a large address space, and it contains a simple header as compared to IPv4. IPv6 increases the IP address from 32 bits to 128 bits to support larger address demands.