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SY0-301 · Question #183

A system administrator attempts to ping a hostname and the response is 2001:4860:0:2001::68. Which of the following replies has the administrator received?

The correct answer is D. IPv6 address. The address 2001:4860:0:2001::68 uses colon-separated hexadecimal notation, which is the standard format for IPv6 addresses.

General security concepts

Question

A system administrator attempts to ping a hostname and the response is 2001:4860:0:2001::68. Which of the following replies has the administrator received?

Options

  • AThe loopback address
  • BThe local MAC address
  • CIPv4 address
  • DIPv6 address

How the community answered

(39 responses)
  • B
    5% (2)
  • C
    3% (1)
  • D
    92% (36)

Why each option

The address 2001:4860:0:2001::68 uses colon-separated hexadecimal notation, which is the standard format for IPv6 addresses.

AThe loopback address

The IPv6 loopback address is ::1 and the IPv4 loopback is 127.0.0.1; neither matches the format shown.

BThe local MAC address

MAC addresses use six two-digit hexadecimal pairs separated by colons or hyphens (e.g., 00:1A:2B:3C:4D:5E), which is structurally different.

CIPv4 address

IPv4 addresses use dotted decimal notation with four octets (e.g., 192.168.1.1), not hexadecimal colon notation.

DIPv6 addressCorrect

IPv6 addresses are represented as eight groups of four hexadecimal digits separated by colons, and the double-colon (::) notation compresses consecutive all-zero groups. The address 2001:4860:0:2001::68 matches this format exactly, confirming it is an IPv6 response.

Concept tested: IPv6 address format identification

Source: https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/ipv6-overview

Topics

#IPv6#network addressing#IP protocol

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