nerdexam
Cisco

300-515 · Question #16

Which optional information can be included with an IPv6 ping to support the troubleshooting process?

The correct answer is D. IPv6 hostname. When pinging an IPv6 destination, you can optionally supply an IPv6 hostname (FQDN) instead of - or alongside - a raw IPv6 address. This is valuable for troubleshooting because a successful ping-by-hostname confirms two things at once: DNS resolution (AAAA record lookup) is worki

IPv6 VPNs

Question

Which optional information can be included with an IPv6 ping to support the troubleshooting process?

Options

  • AIPv4 IP address
  • Bsource MAC address
  • Cdestination MAC address
  • DIPv6 hostname

How the community answered

(33 responses)
  • A
    6% (2)
  • B
    3% (1)
  • D
    91% (30)

Explanation

When pinging an IPv6 destination, you can optionally supply an IPv6 hostname (FQDN) instead of - or alongside - a raw IPv6 address. This is valuable for troubleshooting because a successful ping-by-hostname confirms two things at once: DNS resolution (AAAA record lookup) is working and the destination is reachable, giving you more diagnostic signal than a bare address ping.

Why the distractors are wrong:

  • A (IPv4 address): An IPv6 ping is an entirely separate operation from IPv4; you cannot substitute or mix in an IPv4 address as the target.
  • B & C (MAC addresses): Ping is a Layer 3 tool; MAC addresses live at Layer 2 and are never parameters of the ping command-they are determined automatically by ARP/NDP at the hardware level.

Memory tip: Remember "hostname = double check." Pinging by hostname tests DNS and reachability in one shot - that extra diagnostic value is exactly why it's a supported optional parameter for IPv6 troubleshooting.

Topics

#IPv6#ICMP ping#hostname resolution#troubleshooting

Community Discussion

No community discussion yet for this question.

Full 300-515 Practice