You are configuring a test network. The test network contains a subnet named LAN1. LAN1 uses the network ID of 10.10.1.0/27.
You plan to add a new subnet named LAN2 to the test network.
LAN1 and LAN2 will be connected by a router.
You need to identify a valid network ID for LAN2 that meets the following requirements:
· Ensures that hosts on LAN2 can communicate with hosts on LAN1.
· Supports at least 100 IPv4 hosts.
· Uses only private IP addresses.
Which network ID should you use?
To answer, drag the appropriate network ID and subnet mask to the correct location in the answer area.
Select and Place:
Answer: 
Explanation:
The Subnet Mask specifies which bits of the IP address identify the host system and which bits identify the network where the host system resides.
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
IS THE CORRECT ANSWER NETWORK ID 10.10.1.128 AND SUBNET MASK 255.255.255.128
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For the Subnet Mask yes, the statement tells you that the subnet needs to support at least 100 hosts, with a subnet mask of 255.255.255.128 you have about 126 IP addresses available. On regards of the Network ID, sadly, I don’t know the right answer. I’m currently researching.
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/24 /25 /26 /27 being used by lan1 10.10.1.0
/27 free – cannot fit 100 hosts, only 30 10.10.1.32
/26 free – cannot fit 100 hosts, only 62 10.10.1.64
/25 free – can fit 100 hosts here, up to 126 10.10.1.128
Explanation: You cannot break up subnets however you like you can only break them up in halves.
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Displays subnet chart a lot better.
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https://www.coursehero.com/file/13764389/Subnet-Chart/
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