Your company has a main office and five branch offices. The branch offices connect to the main office by using a WAN link. Each branch office has 100 client computers that run Windows XP or Windows…

The correct answer is B. From a Group Policy, enable Allow BITS Peercaching. Windows Update and Microsoft Update use the Background Intelligent Transfer Service (BITS) to download updates. You can optimize download performance by configuring BITS through Group Peer caching is a feature of BITS that enables peer computers to share files. Peer computers…

Monitoring and Managing Network Infrastructure

Question

Your company has a main office and five branch offices. The branch offices connect to the main office by using a WAN link. Each branch office has 100 client computers that run Windows XP or Windows Vista. All servers run Windows Server 2008 R2. The main office has a Windows Server Update Services (WSUS) server. You need to minimize the amount of WAN traffic used to download updates from the WSUS server. What should you do?

Options

AFrom Windows Explorer, enable Offline Files.
BFrom a Group Policy, enable Allow BITS Peercaching.
CFrom a Group Policy, enable the Set BranchCache Distributed Cache mode setting.
DFrom a Group Policy, enable the Set BranchCache Hosted Cache mode setting.

How the community answered

(27 responses)

A
4% (1)
B
85% (23)
C
7% (2)
D
4% (1)

Explanation

Windows Update and Microsoft Update use the Background Intelligent Transfer Service (BITS) to download updates. You can optimize download performance by configuring BITS through Group Peer caching is a feature of BITS that enables peer computers to share files. Peer computers are computers that have the peer caching feature enabled and that are located in the same subnet. If peer caching is enabled on a computer, Automatic Updates instructs BITS to make downloaded files available to the computer's peers. When updates are downloaded, BITS caches them. When another peer caching-enabled computer tries to download the same update, BITS sends a multicast request to all peers. If peer computers respond to the request, BITS downloads the file from the first peer computer to respond. If the download from the peer computer fails or take too long, BITS continues the download from the WSUS server or from Microsoft Update. Peer caching can optimize bandwidth in the following ways: - Decreases the data that is transferred from the WSUS server to client computers because computers in the same subnet will usually download the updates from each other. - Decreases the data that is transferred across the WAN when some or all of the client computers of a WSUS server are located in different locations. - Decreases the data that is transferred across the Internet if WSUS client computers that are located in the same subnet are configured to download updates from Microsoft Update.

Topics

#WSUS#BITS Peercaching#WAN optimization#branch office

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