Refer to the exhibit. Using VLSM, what is the largest and smallest subnet mask required on this network, including the links between routers, in order to minimize address waste?
- 255.255.255.0 and 255.255.255.252
- 255.255.254.0 and 255.255.255.252
- 255.255.255.128 and 255.255.255.224
- 255.255.254.0 and 255.255.255.224
Explanation: The largest subnet requires 500 hosts addresses, so the most efficient subnet would be a /23 with the mask 255.255.254.0. The smallest subnet, the links between the routers, requires two addresses each, so a /30 subnet with the mask 255.255.255.252 is required.
Exam with this question: Network Addressing and Basic Troubleshooting Final Exam
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