You have an Exchange Server 2013 organization named adatum.com.
You have a database availability group (DAG) that contains four Exchange servers named Server1,
Server2, Server3, and Server4. The file share witness is on a server named Share1.
The organization has two Send connectors. The Send connectors are configured as shown in the
following table.
Users report that email sent to external recipients is not being received.
You discover that outbound email messages are queued on Server3 and Server4.
You need to ensure that all of the email messages queued on Server3 and Server4 are delivered to
the Internet as quickly as possible.
What should you do?
A.
Modify the cost of External2.
B.
Disable External1.
C.
Modify the list of source bridgehead servers of External2.
D.
Modify the cost of External1.
Explanation:
Note:
* In Microsoft Exchange Server 2013, a Send connector controls the flow of outbound messages to
the receiving server.
* When a message is to be delivered to a remote delivery group, a routing path must be determined
for the message. Exchange 2013 uses the same logic as Exchange 2010 to select the routing path for
a message:
Calculate the least-cost routing path by adding the cost of the IP site links that must be traversed to
reach the destination. If the destination is a connector, the cost assigned to the address space is
added to the cost to reach the selected connector. If multiple routing paths are possible, the routing
path with the lowest aggregate cost is used;
If more than one routing path has the same cost, the routing path with the least number of hops is
used;
If more than one routing path is still available, the name assigned to the AD sites before the
destination is considered. The routing path where the AD site nearest the destination is lowest in
alphanumeric order is used. If the site nearest the destination is the same for all routing paths being
evaluated, an earlier site name is considered.
According description we found mails queued on Server3 and Server4. That means that they are routed through External2 already by some reason. Disabling External1 will not change anything,according me. But messages are stuck on Servers3,4 (probably by the same reason they are using External2 😉 ). Changing the list of source servers with, let say, smart hosts or even check internet connectivity (4 mail servers in a DAG were not able to route messages…) looks good options for me!
Wrong answers or description is another assumption!
Not too sure about this one, I thought that external2 would be used if external1 wasn’t available for whatever reason. So if external2 has been used it means there was an issue with external1, external2 should still be able to send emails out.
A or D wouldn’t affect anything in my opinion (and either of these would do the same so it wouldn’t be possible to choose 1 over the other).
The only other one that makes sense is C, maybe the network is set up in a way that wouldn’t allow server3 or 4 to send out externally?
Server1 and Server2 sends messages thru External1.
Server3 and Server4 sends messages thru External2.
Not sure if ALL users report failure or only those with mailboxes on Server3 and Server4. But in question is to ensure emails flow from Server3 and Server4, no word about first group.
So I guess External1 works just fine.
You can designate multiple bridgehead servers for load balancing, performance, and redundancy.
According to this, correct answer should be C.
wrong
“You need to ensure …. are delivered to the Internet as quickly as possible”
asap – disable external1 will do that
Could you explain why that would be the case ?
I was thinking that existing messages in the queue would need to be re-submitted using the retry-queue\number -Resubmit $true command
Agree with DA. This looks like the question and/or answers hasn’t been replicated accurately
First of I agree that the information is incomplete or not accurate to make a good assessment what the root cause of the issue is.
But what I do know is that Exchange can being good for selecting\staying on bad routes, that are not online. I agree for now based on the limited information with disabling External1.
For some reason Server3 and server4 are waiting for servers1 and 2 and will not use there fallback at this time. You don’t know if the servers are in the same datacenter of in separate locations.
If I got this question on the exam, I will feedback it as incomplete of too open for suggestion or assumptions. In real life I would investigate further, before making a decision.
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