What does the following represent? 2E22:4F00:000E:00D0:A267:97FF:FE6B:FE34

Question

Options

• AA MAC address
• BAnIPv4address
• CAn IPv6 address
• DAn IP diagnostic loopback address

• A
  5% (3)
• B
  3% (2)
• C
  90% (54)
• D
  2% (1)

Explanation

2E22:4F00:000E:00D0:A267:97FF:FE6B:FE34 is an IPv6 address - eight groups of four hexadecimal digits separated by colons, totaling 128 bits. This format is the defining signature of IPv6, designed to replace IPv4 due to address exhaustion.

Why the distractors are wrong:

• A (MAC address): MAC addresses are 48 bits written as six hex pairs separated by colons or hyphens (e.g., A2:67:97:FF:6B:34) - far shorter with only 6 groups.
• B (IPv4): IPv4 uses four decimal octets separated by dots (e.g., 192.168.1.1) - no hex, no colons, only 32 bits.
• D (Diagnostic loopback): The IPv4 loopback is 127.0.0.1; the IPv6 loopback is ::1 - a single address, not a full 128-bit string like this.

Memory tip: Count the colons - IPv6 has 7 colons separating 8 groups, and each group has 4 hex digits. If you see a long colon-separated hex string that's clearly too big for a MAC address, it's IPv6.

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