###BeginCaseStudy###
Topic 3, Contoso Ltd,
Overview General Overview Contoso. Ltd. is an international company that has 3,000 employees.
The company has sales, marketing, research, and human resource departments.
Physical Locations
Contoso has two main offices. The offices are located in New York and Chicago. Each moffice has a data center.
The New York office uses a network subnet of 10.1.0.0/16. The Chicago office uses a mnetwork subnet of
10.128.0.0/16.
The offices connect to each other by using a WAN link. Each office connects directly to the Internet.
Existing Environment
Active Directory The network contains an Active Directory forest named contoso.com. The forest mcontains a
single domain. All domain controllers run Windows Server 2012 R2. The forest mfunctional level is Windows
Server 2012 R2.
The forest contains six domain controllers configured as shown in the following table.
The forest is configured as a single Active Directory site.
Active Directory administrators manage the Active Directory schema. Exchange Server madministrators do not
have access to modify the schema.
Contoso has deployed Active Directory Rights Management Services (AD RMS).
Current Business Model
Contoso partners with a company names Fabrikam. Inc. on manufacturing initiatives. The partnership between
Contoso and Fabrikam requires that both companies share confidentialm information frequently.
Requirements
Business Goals
Contoso plans to install Exchange Server 2016 to provide messaging services for its users.
It must be as easy as possible for the users at Contoso to share free/busy information with mthe users at
Fabrikam.
As much as possible Contoso plans to minimize the costs associated with purchasing hardware and software.
Planned Changes
Contoso plans to implement the following changes before installing Exchange Server 2016:
Install hardware Network Load Balancing (NLB) in the New York and Chicago offices.
Implement Microsoft Office Online Servers in the New York and Chicago offices.
Provide Contoso users with company-approved tablets.
Planned Messaging Infrastructure
You plan to create an Exchange Server 2016 organization named Contoso. You plan to deploy seven servers
that will have Exchange Server 2016 installed. The servers will be configured as mshown in the following table.
All of the servers will be members of a database availability group (DAG) named DAG01.
Client Access Requirements
Contoso identifies the following client access requirements for the planned deployment:
Users must be able to configure their tablet to synchronize email by using Autodiscover.
Users must be able to access the Exchange Server organization by using the following names:
Mail.contoso.com
Autodiscover.contoso.com
Users must be able to access Outlook on the web internally and externally from their tablet.
Users must be able to access Office Online Server by using the URL of office-online.contoso.com.
Security Requirements
Contoso identifies the following security requirements for the planned deployment:
Exchange Server mailbox databases must be encrypted while at rest.
Users must be prevented from using Outlook on the web while they are offline.
Contoso users must be able to share Calendar details with approved external domains only.
Email messages sent to the users in the fabrikam.com SMTP domain must be encrypted automatically.
Whenever possible, client computers must be directed to the same Exchange server for log collection.
Users must be able to access their mailbox by using Exchange ActiveSync on the company approved tablets
only.
Email messages sent from the users in the human resources department of Contoso must be protected by
using AD RMS. regardless of the mail client.
Availability Requirements
Contoso identifies the following high-availability requirements for the planned deployment:
Servers must be able to complete a restart without administrative intervention.
The network load balancer must be able to probe the health of each workload.
If a data center fails, the databases in the other data center must be activated automatically.
Redundant copies of all email messages must exist in the transport pipeline before and after mdelivery.
Email messages must be made highly available by the Exchange Server organization before and after delivery.
If you manually mount the databases following the data center failure, the databases in the failed site must be
prevented from mounting automatically.
###EndCaseStudy###
HOTSPOT
You have an Exchange Server 2016 organization. The Active directory sites are configured as shown in the
following graphic.
Use the drop-down menus to select the answer choice that completes each statement based on the
information presented in the graphic
Answer: 
A message that leaves Site 3 to a destination mailbox in Site 2 will be sent directly to Site 2, because by default all IP site links are transitive.
“It’s important to note that Exchange uses site links when determining the least-cost path, but will always try to deliver messages directly to the destination Exchange server.”
source: https://technet.microsoft.com/en-us/library/jj916681(v=exchg.150).aspx
The correct answer is:
Site 2 (because it’s a hub site)
Site 2 (because it’s the destination and there are no other hub sites between site 3 and site 2)
on the exam SITE 4 is a also HUB ..so the answer will be site 4 in second answer.
No, Rambo. If Site4 would be a HUB Site, it still isn’t in least-cost path (20 + 30 > 20 + 10) and message would be send directly to Site2
Absolutely correct.
In regards to Marco answer I don’t agreed. Yes, IP site links are transitive but in a full mesh topology. The diagram illustrated in the question seems to reflect a hub topology. Thus, Site 2 would correspond to the first part of the question, and Site 1 would correspond to the second part has it is the least cost routing path.
That’s very interesting point GRod.. Do we actually know, what is the real network topology. We only see Sites and Site link costs..
Mail routing
https://technet.microsoft.com/en-us/library/aa998825(v=exchg.160).aspx
Marco is correct.
https://technet.microsoft.com/en-us/library/jj916681(v=exchg.160)#SiteLinkCost
Agree with Marco
Site 2 (same cost, but with hub site)
Site 2 (sent directly)
The presence of one or more hub sites along the least-cost routing path If the least-cost routing path to the primary site contains any hub sites, the message must be routed through the hub sites. The closest hub site along the least-cost routing path is selected as a new delivery group of the type AD site, which includes all transport servers in the hub site. After the message traverses the hub site, routing of the message along the least-cost routing path continues. If the primary site happens to be a hub site, the primary site is still considered a hub site for the following reasons:
If the destination delivery group spans multiple Active Directory sites, the source server should only attempt to connect to the servers in the hub site.
The servers in the hub site that belong to the target delivery group are preferred.
As in previous version of Exchange, hub sites that aren’t in the least-cost routing path to the primary site are ignored.
I do agree with Macro, In either case it is Site 2.
1- Hubsite in the least cost path, next hop at Site 2 (HubSite), before delivering to Site 4.
2. Hubsite is not in the least cost path, Sent directly to the destination (Site 2). Exchaneg Always try to deliver the message directly to the target Exchange, unless the later is not reachable, in which case the message is queued at the nearest HUB transport server.
Agree wtih Marco. There are 2 rules to follow:
– If the Hub site is not along the least cost routing path, the message tries to deliver to the Exchange server directly.
– If the target server is not reachable, Exchange tries to deliver the message to the closest destination possible along the least cost routing path.
Based on those 2 rules, the answers are:
1. site2 (the hub site has a link cost of 10, which is the least cost routing path (#1) )
2. site2 (from site 3, neither path are least cost routing paths and hub site is not at the next hop (#1), therefore a direct delivery to site2 is done by Exchange).
Same thing applies to this question:
http://www.aiotestking.com/microsoft/use-the-drop-down-menus-to-select-the-answer-choice-that-completes-each-statement-based-on-2/
Marco and others are incorrect..
The following figure shows how IP site link costs affect routing to a hub site. In this scenario, Site B has been designated as a hub site. However, Site B doesn’t exist along the least-cost routing path between any other sites. Therefore, messages that are relayed from Site A to Site D are never relayed through Site B. An Active Directory site is never used as a hub site if it isn’t on the least-cost routing path between two other sites.
HUB SERVER HAS TO BE ON LEAST ROUTING COST PATH. Focus people..
The following figure shows how IP site link costs affect routing to a hub site. In this scenario, Site B has been designated as a hub site. However, Site B doesn’t exist along the least-cost routing path between any other sites. Therefore, messages that are relayed from Site A to Site D are never relayed through Site B. An Active Directory site is never used as a hub site if it isn’t on the least-cost routing path between two other sites.
Site 2:
Site 1:
Is the correct answer
Help me understand please, why does it have to go through site 1? Even you mentioned that a hub server is not used to route email unless it is on the least costing path.
Site 1 is not a hub site, I don’t see why the email from Site 3 can’t be delivered directly to Site 2, what am I missing?
New 70-345 Exam Questions (12/May/2017 Updated):
NEW QUESTION 1
You have a hybrid Exchange Server 2016 organization. Some of the mailboxes in the research department are hosted on-premises. Other mailboxes in the research department are stored in Microsoft Office 365. You need to search the mailboxes in the research department for email messages that contain a specific keyword in the message body. What should you do?
A. From the Exchange Online Exchange admin center, search the delivery reports.
B. Form the on-premises Exchange Center, search the delivery reports.
C. From the Exchange Online Exchange admin center, create a new In-Place eDiscovery & Hold.
D. From the Office 365 Compliance Center, create a new Compliance Search.
E. From the on-premises Exchange admin center, create a new In-Place eDiscovery & Hold.
Answer: E
NEW QUESTION 2
You have an Exchange Server 2016 organization. Some users access their mailbox by using an Android or an iOS device. You need to prevent the users from using OWA for Devices to access their mailbox. Which cmdlet should you use?
A. Set-CASMailbox
B. Set-MobileMailboxPolicy
C. Set-OWAVirtualDirectory
D. Set-OWAMailboxPolicy
Answer: A
NEW QUESTION 3
Your company has an Exchange Server 2016 organization. The organization contains 2,000 mailboxes and five Mailbox servers, including one server named EX1. Five hundred users retrieve email from their mailboxes by using an IMAP4 client application from the Internet. The users also connect to EX1 to send email messages. All of the email messages are secured by using TLS. An administrator recently replaced the company’s firewall. Users now report that they fail to send email messages from the IMAP4 client application. You verify that the users can retrieve email messages form their mailbox successfully. You need to recommend which TCP port must be allowed so that the users can send email messages from the IMAP4 application successfully. Which TCP port should you recommend?
A. 443
B. 587
C. 993
D. 995
Answer: C
NEW QUESTION 4
Your network contains the servers configured as shown in the following table:
Image URL: passleader.org/wp-content/uploads/2017/05/passleader-70-345-dumps-41.jpg
You run the New-DatabaseAvailabilityGroup cmdlet and you receive the following error message:
The task was unable to create the default witness directory on server FS01. Please manually specify a witness directory.
+ CategoryInfo: InvalidArgument:(:)[New-DatabaseAvailabilityGroup], DagFswUnableTo … ectoryException
+ FullyQualifiedErrorId: [Server=EX01, RequestId-81b106a2-21e7-4ac3-8a23-e2e13e54a9fa, TimeStamp=11/13/2015 3:09:02 PM]
[FailureCategory=CmdletDagFswUnableToBindWitnessDirectoryException]166B6E12,Microsoft.Exchange.Management.SystemConfigurationTasks.NewDatabaseAvailabilityGroup
+ PSComputerName: EX01.contoso.com
You need to ensure that you can create the database availability group (DAG) successfully by using the NewDatabaseAvailabilityGroup cmdlet. What should you do?
A. Add the Exchange Trusted Subsystem group to the local Administrators group on FS01.
B. Add the Delegated Setup role group to the local Administrators group on FS01.
C. Install the Failover Clustering feature on FS01.
D. Install the Remote Server Administration Tools feature on FS01.
Answer: A
NEW QUESTION 5
You have an Exchange Server 2016 organization. The organization contains a mailbox database named DB1. DB1 is stored on a volume named Volume1. You plan to use Exchange Native Data protection. You need to recommend a solution to prevent Volume1 from running out of space for transaction logs. What should you recommend?
A. an event history retention period
B. background database maintenance
C. circular logging
D. a size limit of the log directory for the managed folders
Answer: C
NEW QUESTION 6
You have an exchange Server 2016 organization that uses an SMTP domain named contoso.com. You need to encrypt all of the SMTP traffic from the organization to a partner organization. The partner organization uses an SMTP domain named litwareinc.com. Which three commands should you run on your server? Each correct answer presents part of the solution.
A. New-ReceiveConnector-Name “Connector1”-Usage Internet- Bindings 0.0.0.0:587- DomainSecureEnabled: $true
B. Set-TransportConfig-TLSSendDomainSecureList litwareinc.com
C. New-SendConnector-Usage Partner-Name “Connector1” -AddressSpaces “lintwareinc.com” -IgnoreSTARTTLS $false-DNSRoutingEnabled $true -DomainSecureEnabled $true
D. Set-TransportConfig- TLSReceiveDomainSecureList contoso.com
E. Set-TransportConfig-TLSReceiveDomainSecureList litwareinc.com
F. New-SendConnector- Usage Partner -Name “Connector1” -AddressSpaces “contoso.com” -IgnoreSTARTTLS $false-DNSRoutingEnabled $ture -DomainSecureEnabled $true
G. Set-TransportConfig-TLSSendDomainSecureList contoso.com
Answer: CEG
NEW QUESTION 7
You have an Exchange Server 2016 organization. The organization contains an Edge transport server. Users report that a message with the following anti-spam headers is delivered to their Inbox folder in Microsoft Outlook:
X-MS-Exchange-Organization-PCL: 7
X-MS-Exchange-Organization-SCL: 6
X-MS-Exchange-Organization-Antispam-Report: DV:3.1.3924.1409;SID:SenderIDStatus Fail;PCL:PhishingLevel SUSPICIOUS;CW:CustomList;PP:Presolved;TIME:TimeBasedFeatures
You need to prevent similar messages from being delivered. The solution must generate a non-delivery report (NDR) when the messages are prevented from being delivered to all user mailboxes. What should you do?
A. Set the SCL reject threshold to 7.
B. Run the Set-SenderIdConfig cmdlet.
C. Set the SCL delete threshold to 7.
D. Run the Set-TransportConfig cmdlet.
Answer: A
NEW QUESTION 8
You have an Exchange Server 2016 organization. The organization contains one Edge Transport server. A user reports that certain email messages expected from a specific recipient were never received. You need to search for messages that were blocked by the Edge Transport because they contain attachment types that are blocked by the organization. In which folder should you search?
A. QueueViewer
B. AgentLog
C. Connectivity
D. Routing
E. ProtocolLog
Answer: E
NEW QUESTION 9
You have an Exchange Server 2016 organization. Users store sales information in public folders. You need to create a public folder that can receive email from external users. Which three commands should you use? Each correct answer presents part of the solution.
A. Add-MailboxPermission
B. Add-PublicFolderClientPermission
C. Update-PublicFolderMailbox
D. Enable-MailPublicFolder
E. Add-RecipientPermission
F. New-PublicFolder
G. New-Mailbox
Answer: BDF
NEW QUESTION 10
……
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Best Regards!
PASSED the 70-345 exam with a good score of 82X recently!!!
Total 40 questions, including 2 Case Studies:
1. Fabrikam, Inc. (Few new questions appeared in this Case Study!!!)
2. Relecloud
Many questions about the database availability group (DAG), please learning it deeply.
And, lots of questions about Azure, DNS, Exchange 2016 Server Deployment (AD FS setup), site links and WAN setup between offices……etc.
Also, I came across around 10-15 new questions that not available here.
One new question about IMAP4 over SSL (IMAPS) — port 993.
New question on setting auditlog for create new mailbox.
Questions on this site MAY not enough for passing, SOME NEW QUESTIONS ARE NOT AVAILABLE HERE!
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