You have three Hyper-V hosts that each have 20 processor cores and 64 GB of RAM. Nine virtual machines are deployed to the hosts as shown in the following table.

Host1 is located in New York, Host2 is located in Los Angeles, and Host3 is located in Denver. None of the virtual machines use dynamic memory.
You plan to deploy a two-node Exchange Server 2016 database availability group (DAG) by using the virtual machines. Each node will have 12 processor cores and 24 GB of memory.
You are evaluating whether you can use the existing servers for the deployment or whether you must purchase additional servers.
You need to recommend where to place the Exchange servers. The solution must minimize costs.
What is the best recommendation to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.

Correct Answer: A 🗳️
First, look at the CPU requirements for Exchange 2016.
"Exchange supports a virtual processor-to-logical processor ratio no greater than 2:1, although we recommend a ratio of 1:1. For example, a dual processor system using quad core processors contains a total of 8 logical processors in the host system. On a system with this configuration, don't allocate more than a total of 16 virtual processors to all guest virtual machines combined."
Furthermore, the host operating system also needs 2 processors. source: https://technet.microsoft.com/en-us/library/jj619301(v=exchg.160).aspx

Host 1 uses 12 out of 20 cores -

Host 2 uses 20 out of 20 cores -

Host 3 uses 32 out of 20 cores -
You need 12 cores, so Host 3 lacks the resources.
This leaves hosts 1 and 2.
Now, let's look to the memory requirements:
""¦using dynamic memory or memory overcommit features for Exchange isn't supported." source: https://technet.microsoft.com/en-us/library/jj619301(v=exchg.160).aspx

Host 1 uses 20 out of 64 GB -

Host 2 uses 48 out of 64 GB -

Host 3 uses 44 out of 64 GB -
You need 24 GB for each VM.
Only host 1 has the resources for it.
It is not recommended to put both VM's on one host.
So, the answer should be: A.

You have an Exchange Server 2016 organization. The organization contains five Mailbox servers. The servers are members of a database availability group
(DAG). All of the databases in the DAG are replicated to all of the members.
You plan to perform scheduled maintenance on a Mailbox server named MBX3 that will place the server offline for up to an hour.
You need to ensure that any active databases on MBX3 are activated on other DAG members before performing the maintenance.
Which cmdlet should you use?

Correct Answer: D 🗳️
Use the DatabaseCopyActivationDisabledAndMoveNow parameter.
References:
https://technet.microsoft.com/en-us/library/aa998651(v=exchg.160).aspx?f=255&MSPPError=-2147217396

You have an Exchange Server 2016 organization. The organization contains a database availability group (DAG).
You need to identify the number of transaction logs that are in replay queue.
Which cmdlet should you use?

Correct Answer: Explanation 🗳️
References:
https://technet.microsoft.com/en-us/library/bb691314(v=exchg.160).aspx?f=255&MSPPError=-2147217396

Your company has a data center. The data center contains a server that has Exchange Server 2016 and the Mailbox server role installed. Outlook Anywhere clients connect to the Mailbox server by using the name outlook.contoso.com.
The company plans to open a second data center and to provision a database availability group (DAG) that spans both data centers.
You need to ensure that Outlook Anywhere clients can connect if one of the data centers becomes unavailable.
What should you add to DNS?

Correct Answer: A 🗳️
References:
https://technet.microsoft.com/en-gb/library/dd638104(v=exchg.150).aspx?f=255&MSPPError=-2147217396