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    • Subnetting

    CCNA 640-802 Bible – Calculate and Apply VLSM IP Addressing Scheme

    Thursday, July 16th, 2009

    1. In the implementation of VLSM techniques on a network using a single Class C IP address, which subnet mask is the most efficient for point-to-point serial links?
    A: 255.255.255.0
    B: 255.255.255.240
    C: 255.255.255.248
    D: 255.255.255.252

    Tags: 640-802 Bible, IP Subnetting, VLSM

    Subneting and Summarization

    Tuesday, April 28th, 2009

    Subneting
    The process of extending the default subnet mask creates a counting range in the octet that the subnet was extended into, which can be used to represent subnetworks. This allows a single Class A, B, or C network to be subdivided into many smaller groups with each group, or subdivision treated as if it were [...]

    IP subnetting

    Friday, April 10th, 2009

    IP subnetting is a fundamental subject that’s critical for any IP network engineer to understand, yet students have traditionally had a difficult time grasping it. Over the years, I’ve watched students needlessly struggle through school and in practice when dealing with subnetting because it was never explained to them in an easy-to-understand way. I’ve helped [...]