Your company has a main office and four branch offices. The main office contains a server named
Server1 that runs Windows Server 2012 R2.
The IP configuration of each office is configured as shown in the following table.
You need to add a single static route on Server1 to ensure that Server1 can communicate with the
hosts on all of the subnets.
Which command should you run?
A.
route.exe add -p 10.10.0.0 mask 255.255.252.0 10.10.0.1
B.
route.exe add -p 172.16.16.0 mask 255.255.252.0 10.10.0.1
C.
route.exe add -p 10.10.0.0 mask 255.255.252.0 172.16.0.0
D.
route.exe add -p 172.16.18.0 mask 255.255.252.0 10.10.0.1
Explanation:
These parameters will allow communication with all the hosts.
References:
Exam Ref: 70-410: Installing and Configuring Windows Server 2012 R2, Chapter4: Deploying and
configuring core network services, Objective 4.1: Configure IPv4 and IPv6 addressing, p.192, 196
can anyone explain this?
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172.16.16.0 mask 255.255.252.0 is a supernet-route, hence 172.16.16.0/22. This is the range from 172.16.16.0-172.16.19.255. This range includes the four subnets presented and routes traffic destined for those subnets via 10.10.0.1 – obviously the router in the subnet.
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This is networking, the ‘route add’ commands tell the server how to get to these subnets. You do this since the server probably has no idea how to get to the branch office since it’s a server and not a router. The router on the other hand does know how to reach those subnets. The correct command will tell the server that to find the 172.16.16.0 255.255.252.0 subnets, you send all the traffic to the router and the router will do the rest.
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YES! Correct answer = B
route add -p 172.16.16.0 mask 255.255.252.0 10.10.0.1
Destination^ Mask^ Gateway^
IP available range on the 172.16.16.0 network =
172.16.16.1 thru 172.16.19.254 – Will talk to all branch networks
Broadcast IP = 172.16.19.255
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