200-301: Cisco Certified Network AssociateDemo

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QuestionQ130

IP Connectivity

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Refer to the exhibit. Drag and drop the learned prefixes from the left onto the subnet masks on the right.

Drag & Drop
172.16.3.128
172.16.3.64
172.16.2.128
172.16.3.192
172.16.4.0
255.255.254.0
255.255.255.128
255.255.255.224
255.255.255.240
255.255.255.248
Explanation

Each learned route in the routing table includes a CIDR prefix length. Converting those prefix lengths to dotted-decimal masks gives the correct matches: 172.16.2.128/25 = 255.255.255.128, 172.16.3.64/27 = 255.255.255.224, 172.16.3.128/28 = 255.255.255.240, 172.16.3.192/29 = 255.255.255.248, and 172.16.4.0/23 = 255.255.254.0.

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