You have an Exchange Server 2013 organization. Your company has a Service Level Agreement (SLA)
stating that you must be able to reconnect disconnected mailboxes to user accounts for up to 365
days. After 365 days, disconnected mailboxes must be deleted permanently. You need to
recommend a solution to meet the SLA . What should you include in the recommendation?

A.
Create a retention policy and apply the policy to all mailboxes.

B.
Configure the deleted mailbox retention setting for all databases.

C.
Configure the deleted item retention setting for all databases.

D.
Implement a database availability group (DAG) that contains a lagged copy.

Explanation:
Recoverable Items Folder Exchange 2013
The Recoverable Items folder replaces the feature known as the dumpster in Exchange Server 2007.
The
Recoverable Items folder is used by the following Exchange features:
Deleted item retention
Single item recovery
In-Place Hold
Litigation hold
Mailbox audit logging
Calendar logging
Disconnected Mailboxes

Each Microsoft Exchange mailbox consists of an Active Directory user account and the mailbox data
stored in the Exchange mailbox database. All configuration data for a mailbox is stored in the
Exchange attributes of the Active Directory user object. The mailbox database contains the mail data
that’s in the mailbox associated with the user account. The following figure shows the components
of a mailbox.

A disconnected mailbox is a mailbox object in the mailbox database that isn’t associated with an
Active Directory user account. There are two types of disconnected mailboxes:
Disabled mailboxes
When a mailbox is disabled or deleted in the Exchange Administration Center (EAC) or using the
Disable-Mailbox or Remove-Mailbox cmdlet in the Exchange Management Shell, Exchange retains
the deleted mailbox in the mailbox database, and switches the mailbox to a disabled state. This is
why mailboxes that are either disabled or deleted are referred to as disabled mailboxes. The
difference is that when you disable a mailbox, the Exchange attributes are removed from the
corresponding Active Directory user account, but the user account is retained. When you delete a
mailbox, both the Exchange attributes and the Active Directory user account are deleted.
Disabled and deleted mailboxes are retained in the mailbox database until the deleted mailbox
retention period expires, which is 30 days by default. After the retention period expires, the mailbox
is permanently deleted (also called purged). If a mailbox is deleted using the Remove-Mailbox
cmdlet, it’s also retained for the duration of the retention period.
Important:
If a mailbox is deleted using the Remove-Mailbox cmdlet and either the Permanent or
StoreMailboxIdentity parameter, it will be immediately deleted from the mailbox database.
To identify the disabled mailboxes in your organization, run the following command in the Shell.
Get-MailboxDatabase | Get-MailboxStatistics | Where { $_.DisconnectReason -eq “Disabled” } | ft
DisplayName,Database,DisconnectDate
Soft-deleted mailboxes
When a mailbox is moved to a different mailbox database, Exchange doesn’t fully delete the mailbox
from the source mailbox database when the move is complete. Instead, the mailbox in the source
mailbox database is switched to a soft-deleted state. Like disabled mailboxes, soft-deleted mailboxes

are retained in the source database either until the deleted mailbox retention period expires or until
the Remove-StoreMailbox cmdlet is used to purge the mailbox.
Run the following command to identify soft-deleted mailboxes in your organization.
Get-MailboxDatabase | Get-MailboxStatistics | Where { $_.DisconnectReason -eq “SoftDeleted” } |
ft
DisplayName,Database,DisconnectDate
NOT A
Need to modify the deleted mailbox retention settings
NOT C
Not related to an item but to databases
NOT D
Need to modify the deleted mailbox retention settings.
DAG with a lagged copy is not modifying the mailbox retention policy settings.
B
Disabled and deleted mailboxes are retained in the mailbox database until the deleted mailbox
retention period expires, which is 30 days by default.
This example configures a deleted item retention period of 365 days for the mailbox database
MDB2.
Set-MailboxDatabase -Identity MDB2 -DeletedItemRetention 365
Content can be retained using a variety of built-in functions such as:
Journaling: With journaling, the organization can have exact copies of content captured and retained
in a separate database (a “journaling database”) to ensure the content has not been tampered with
and is available for legal search and review at a future time Retention Policy: Content within an
Exchange environment can be set to be retained (or purged) based on policies set on the Exchange
databases, so either configured through the Exchange Admin console or through a PowerShell
command like Set-MailboxDatabase -Identity MDB4 – eletedItemRetention 365 to hold content from
being deleted off the Exchange server
Personal Archives: Each user in Exchange can have their primary mailbox and an Archive mailbox
where the archive mailbox can have content drag/dropped to the archive box for long term storage,
similar to what users have historically used Personal Store (PST) files in the past. Unlike a PST file
that is almost completely unmanaged by the organization (yet is still considered legal evidence), the
Personal Archive in Exchange is part of the Exchange environment with content that can be
searched, set for long term retention, and put on legal hold.