312-50V13 · Question #92
You have the SOA presented below in your Zone. Your secondary servers have not been able to contact your primary server to synchronize information. How long will the secondary servers attempt to conta
The correct answer is C. One week. The SOA record's 'Expire' value dictates how long a secondary server will continue to attempt contacting the primary server and serving stale zone data before considering the zone dead.
Question
Options
- AOne day
- BOne hour
- COne week
- DOne month
How the community answered
(32 responses)- A3% (1)
- B3% (1)
- C94% (30)
Why each option
The SOA record's 'Expire' value dictates how long a secondary server will continue to attempt contacting the primary server and serving stale zone data before considering the zone dead.
One day is 86400 seconds, which does not match the Expire value of 604800 seconds.
One hour is 3600 seconds, which matches the Refresh and Retry intervals, not the Expire interval.
The fifth value in the SOA record, '604800', represents the 'Expire' interval in seconds. This is the maximum time a secondary server will attempt to contact the primary for updates before it considers its zone data too old to be authoritative and stops responding to queries. 604800 seconds equals 7 days, or one week.
One month is approximately 2.6 million seconds, which greatly exceeds the Expire value of 604800 seconds.
Concept tested: DNS SOA record (Expire value)
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/dnscmd-zone-resettype
Topics
Community Discussion
No community discussion yet for this question.