What is the number of bits of an IP address in IPv6 version?

Computer Knowledge ·Previously asked in JKSSB Sub Inspector (Executive) 2022

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Question

What is the number of bits of an IP address in IPv6 version?

  1. A. 32
  2. B. 64
  3. C. 128 (Correct answer)
  4. D. 256

Correct Answer

Option C — 128

Detailed Solution & Explanation

The correct answer is 128.

Key Points

  • IPv4 (Internet Protocol version 4) uses 32-bit addresses, providing approximately 4.3 billion unique addresses.
  • IPv6 (Internet Protocol version 6) was developed to address the exhaustion of IPv4 addresses.
  • IPv6 uses 128-bit addresses, providing 2^128 (approximately 3.4 x 10^38) unique addresses -- a virtually inexhaustible number.
  • IPv6 addresses are written in hexadecimal format, separated by colons (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).