Exam 70-345 topic 1 question 21 discussion

Actual exam question from Microsoft's 70-345

Question #: 21
Topic #: 1

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.
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Suggested Answer:

By default, all site links are transitive. This means that if Site A has a link to Site B, and Site B has a link to Site C, Site A is transitively linked to Site C. The transitive link between Site A and Site C is also known as a site-link bridge. A message sent from Site A to Site C would be sent directly to Site C.
In your Exchange organization, you may want to force all message delivery through a specific Active Directory site. You can use the Shell to designate an Active
Directory site as a hub site. When you do this, you cause additional overall overhead because more servers are involved in message delivery. For example, consider a message that's sent from Site A to Site E. If the least-cost routing path is Site A-Site B-Site C-Site D-Site E, and you designate Site C as a hub site, the message is relayed from Site A to Site C and then relayed from Site C to Site E.
Whenever a hub site exists along the least-cost routing path for message delivery, the messages are queued and are processed by the Transport service on
Mailbox servers in the hub site before they're relayed to their ultimate destination.
After the least-cost routing path is chosen, routing determines whether there's a hub site along that routing path. If a hub site is configured, messages stop at a
Mailbox server in the hub site before they're relayed to the target destination.
References:
https://technet.microsoft.com/en-us/library/jj916681(v=exchg.160).aspx

by l1f3rl at March 9, 2020, 1:55 p.m.

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RakRocky

4 years, 6 months ago

1) Site 2 2) Site 2

upvoted 1 times

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potpal

4 years, 8 months ago

Why not tansitive from site 1 to site 4?

upvoted 2 times

Explen

4 years, 7 months ago

Whenever a hub site exists along the least-cost routing path for message delivery, the messages are queued and are processed by the Transport service on Mailbox servers in the hub site before they're relayed to their ultimate destination. After the least-cost routing path is chosen, routing determines whether there's a hub site along that routing path. If a hub site is configured, messages stop at a Mailbox server in the hub site before they're relayed to the target destination.

upvoted 3 times

JSMM

4 years, 5 months ago

in this case, the cost is equal.

upvoted 1 times

alexirk

4 years, 5 months ago

1. If more than one routing path has the same aggregate cost, the number of hops in each path is evaluated and the routing path with the least number of hops is used. 2. If more than one routing path is still available, the name assigned to the Active Directory sites before the destination is considered. The routing path where the Active Directory 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. In this case, the message is sent to the site with the lowest alphanumeric name "Site 2".

upvoted 1 times

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l1f3rl

5 years, 3 months ago

Correct.

upvoted 1 times

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