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Exam 70-741 topic 1 question 9 discussion

Actual exam question from Microsoft's 70-741
Question #: 9
Topic #: 1
[All 70-741 Questions]

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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Your network contains an Active Directory domain named contoso.com. The domain contains a member server named Server1 that runs Windows Server 2016 and has the DNS Server role installed. Automatic scavenging of stale records is enabled and the scavenging period is set to 10 days.
All client computers dynamically register their names in the contoso.com DNS zone on Server1.
You discover that the names of multiple client computers that were removed from the network several weeks ago can still be resolved.
You need to configure Server1 to automatically remove the records of the client computers that have been offline for more than 10 days.
Solution: You modify the Zone Aging/Scavenging properties of the zone.
Does this meet the goal?

  • A. Yes
  • B. No
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
https://technet.microsoft.com/en-us/library/cc771362(v=ws.10).aspx
by dritter at Feb. 17, 2019, 1:47 p.m.

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dritter
Highly Voted 5 years, 9 months ago
The setting that still needs to be configured is this one: dnscmd /config /scavenginginterval <interval> It's the setting on the server. https://www.dell.com/support/article/de/de/debsdt1/sln290798/windows-server-how-to-configure-dns-aging-and-scavenging?lang=en
upvoted 7 times
Henkie888
4 years, 9 months ago
dnscmd cannot be used on 2016, so this is not an option according to: https://technet.microsoft.com/en-us/library/cc772069(v=ws.11).aspx So I would go for A
upvoted 2 times
Thermal
4 years, 5 months ago
You made a fatal error there, dnscmd can indeed be used on Server 2016, just because 2016 is not listed in on the technet does not it cannot be used, simply that the article has not been updated. Omissions from technet are not proof of incompatibility, look for actual documentation stating it cannot be used with server 2016 instead.
upvoted 3 times
Thermal
4 years, 5 months ago
To clarify the answer is still A :YES (lucky) just your reasoning was incorrect.
upvoted 1 times
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GenjamBhai
Highly Voted 4 years, 8 months ago
YES Configure Scavenging: DNS Server > Set Aging / Scavenge for All Zones OR Zone > Properties > General > Aging > Scavenge Stale RR > Set No-refresh and Refresh (DNS update) interval (7 days) cmdline: Add-DnsServerZoneAging <z.com> -Aging $true -ScavengeServers <server_IP> OR dnscmd.exe /config /aging [zone] = Enables scavenging, can specify zone Enable Scavenging auto or manually: DNS Server > Properties > Advanced > Enable Automatic Scavenging + Interval OR DNS Server > Scavenge RR = manual scavenge Cmdline: Start-DnsServerScavenging OR dnscmd.exe /StartScavenging
upvoted 5 times
GenjamBhai
4 years, 8 months ago
Auto-scavenging and interval is set however actual scavenging is not enabled. Under Server/Zone Aging - Tick Scavenge Stale RRs and set the Refresh Intervals to allow scavenging.
upvoted 3 times
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ve22
Most Recent 4 years, 10 months ago
A or B anybody else?!
upvoted 1 times
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coleman
5 years, 1 month ago
answer is no . because it is not "period instead"
upvoted 1 times
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MrRiver
5 years, 2 months ago
A - Should be correct. quoteing Exam Refs Page 46: to enable scaveging, you must enalbe it on both the DNS zones an don the servers
upvoted 1 times
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Dean
5 years, 3 months ago
Answer A best fits the question. From the Dell site you linked : dnscmd /ageallrecords <zone> : If scavenging is enabled on the server and the specified zone, this command will add a timestamp to all records in the zone (or a subtree of the zone) and set the value of the timestamp to the current time. This makes those records eligible to be scavenged, though they won't be scavenged right away; their no-refresh and refresh intervals have to expire first, as always. Be aware that this command affects static records (effectively turning them into dynamic records, as far as scavenging is concerned) and that once a timestamp is added to a record, the only way to remove it is to delete and recreate the record manually. Name server (NS), start-of-authority (SOA), and WINS records are not affected by this command. This will not accomplish the required scavenging of records immediately - it will add a time-stamp to certain records and schedule them for deletion subject to requirements configured. The technet article linked in answer would be more suitable as it is the Microsoft approach and Microsoft will draw from their own technet articles for the questions rather than Dell resources.
upvoted 4 times
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Sean89
5 years, 5 months ago
dritter, do you think the answer should be changed to no?
upvoted 1 times
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