XK0-005 · Question #708
An administrator is investigating why a Linux workstation is not resolving a website. The output of dig and nslookup shows that IPv4 resolution is working, but IPv6 resolution fails. The…
The correct answer is A. The static entry needs to be removed from /etc/hosts. address instead of querying DNS. This prevents proper IPv6 (AAAA) resolution, as /etc/hosts only contains an IPv4 (A) record. Removing this static entry allows the system to query DNS for both IPv4 and IPv6 records.
Question
An administrator is investigating why a Linux workstation is not resolving a website. The output of dig and nslookup shows that IPv4 resolution is working, but IPv6 resolution fails. The administrator executes:
The workstation has a static entry in /etc/hosts:
CopyEdit Which of the following is the most likely cause?
Options
- AThe static entry needs to be removed from /etc/hosts.
- BThe remote website does not support IPv6, and the workstation requires it.
- CThe firewall needs to be modified to allow outbound HTTP and HTTPS.
- DThe nameserver in /etc/resolv.conf needs to be updated to 8.8.8.8.
How the community answered
(22 responses)- A82% (18)
- B5% (1)
- C9% (2)
- D5% (1)
Explanation
address instead of querying DNS. This prevents proper IPv6 (AAAA) resolution, as /etc/hosts only contains an IPv4 (A) record. Removing this static entry allows the system to query DNS for both IPv4 and IPv6 records.
Topics
Community Discussion
No community discussion yet for this question.